[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "1.1"]
[White "Yamaguchi, Tosei"]
[Black "Takeuchi, Hiroshi"]
[Result "1-0"]
[ECO "E71"]
[WhiteElo "1940"]
[BlackElo "1388"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "85"]
[EventDate "2024.03.23"]

{E71: King's Indian: 4 e4 d6 5 h3} 1. d4 Nf6 2. c4 d6 3. Nc3 g6 4.
e4 Bg7 5. h3 O-O 6. Be3 e5 7. d5 Nbd7 8. g4 (8. Bd3 Nh5 (8... Nc5 9. Bc2 a5 10.
Nge2 Nh5 11. Qd2 f5 12. exf5 Bxf5 13. Bxf5 gxf5 14. O-O-O a4 15. g4 Nf4 16.
Nxf4 exf4 17. Bd4 fxg4 18. Bxg7 Kxg7 19. hxg4 Qf6 20. Rh5 Qg6 21. f3 Rae8 22.
Rdh1 Re3 23. Qh2 {Lovkov,R (2424)-Ljubarov,M (2158) St Petersburg 2012 1-0 (46)
}) 9. Nge2 Nc5 10. Bc2 f5 11. exf5 gxf5 12. b4 Na6 13. Rb1 Qh4 14. g3 Qe7 15.
Qd3 Bd7 16. g4 Nf4 17. Bxf4 exf4 18. Kf1 Qh4 19. Qf3 Rae8 20. gxf5 Bxf5 21.
Bxf5 Rxf5 22. Nb5 Qh5 {Rivas Pastor,M (2505)-Polgar,Z (2510) Salamanca 1989 1/
2-1/2 (46)}) 8... b6 $146 {Controls c5} (8... Nc5 9. Qc2 (9. Bg2 a5 10. Nge2 c6
11. Ng3 cxd5 12. Nxd5 Nxd5 13. cxd5 b6 14. Bf3 Ba6 15. Be2 Bxe2 16. Qxe2 Qd7
17. O-O Rfc8 18. Rac1 Rc7 19. Rc2 Rac8 20. Rfc1 b5 21. Kg2 Bf6 22. Qd2 b4 23.
Bg5 Qe7 {Neyman,I (2217)-Boehlig,H (2236) Germany 2003 1/2-1/2 (68)}) 9... c6
10. Nge2 cxd5 11. cxd5 Qa5 12. Ng3 Bd7 13. Bd2 Rfc8 14. Rb1 Qd8 15. Qd1 a5 16.
Qf3 Rab8 17. g5 Ne8 18. h4 f6 19. Be2 Nc7 20. Kf1 Qe7 21. gxf6 Qxf6 22. Qxf6
Bxf6 23. h5 {Bronstein,D-Gligoric,S Zuerich 1953 1-0 (57)}) (8... Nc5 $5 {
should not be overlooked} 9. Qc2 a5 $11) 9. Nge2 $14 a5 10. Ng3 Ne8 (10... Nc5
11. g5 Nfd7 12. Qc2 $14) 11. Qd2 Nc5 12. Be2 {Black has a cramped position} Bd7
{[%cal Ya5a4] Black intends a4} 13. h4 f6 {Covers g5} (13... a4 $5 $16) 14.
O-O-O a4 15. f3 a3 16. b3 Rb8 (16... Rf7 17. Kb1 $16) 17. Rdg1 (17. Nb5 Ra8 $18
) 17... Ra8 18. Bd1 Rb8 (18... Qb8 19. h5 $16) 19. Bc2 (19. b4 Nb7 $18) 19...
b5 (19... Ra8 20. h5 $16) 20. cxb5 $18 Bxb5 21. Nxb5 Rxb5 22. g5 (22. h5 $142
$18) 22... f5 $4 {another bit of territory lost} (22... fxg5 23. hxg5 Qd7 24.
Bd1 $16) 23. Ne2 (23. exf5 $142 {secures victory} Qb8 24. f6 Nxb3+ 25. axb3
Rxb3 26. Kd1 (26. fxg7 $6 {is much worse} Rxf3 27. Bxb3 Qxb3 $16) 26... Bxf6
27. Bxb3 Qxb3+ 28. Ke2 $18) 23... f4 24. Bf2 Na6 $2 (24... Qc8 $142 $16) 25.
Bd3 $18 Qb8 26. Bxb5 Qxb5 27. Nc3 Qb4 28. Na4 Qb7 (28... Qb5 {doesn't improve
anything} 29. h5 $18) 29. Kb1 c6 (29... Rf7 {cannot change destiny} 30. h5 $18)
30. dxc6 Qxc6 31. Rc1 Qb7 32. Rhd1 Rf7 33. Qd5 Qb8 (33... Bf8 {is not much help
} 34. Qc6 Rd7 35. Nb6 Qxc6 36. Rxc6 $18) 34. Qc4 Nac7 35. Bb6 (35. Nb6 $142 {
and White can already relax} Qb7 $18) 35... Qc8 (35... Bf8 {cannot undo what
has already been done} 36. Rd3 $18) 36. Bxc7 Nxc7 (36... Qxc7 {there is
nothing else anyway} 37. Qxc7 Nxc7 38. Rxd6 Nb5 39. Rc8+ Rf8 40. Rxf8+ Bxf8 $18
) 37. Rxd6 Qh3 (37... Qe8 38. Rc6 Qd7 39. Rxc7 Qxc7 40. Qxc7 Rxc7 41. Rxc7 Bf8
42. Nc5 Bxc5 43. Rxc5 Kf8 44. Rc8+ Ke7 45. b4 Kd7 46. Rc1 Kd6 47. b5 h6 48. b6
Ke7 49. b7 Kd8 50. b8=Q+ Kd7 51. Qb7+ Ke6 52. Rc6#) 38. Qd3 (38. Nc5 Bf8 39.
Rf6 Ne6 40. Nxe6 Qg2 $18) 38... Ne6 (38... Bf8 {there is nothing better in the
position} 39. Rf6 Rd7 40. Qc4+ Kg7 $18) 39. Qd5 Nd4 (39... Nf8 {doesn't get
the cat off the tree} 40. b4 Qxf3 41. Rd8 $18) 40. Rd8+ (40. Nc5 Bf8 41. Rf6
Bg7 42. Qxf7+ Kh8 43. Qe8+ Bf8 44. Qxf8#) 40... Bf8 41. Qxe5 (41. Rxf8+ $142 {
and the rest is a matter of technique} Kxf8 42. Qxe5 Kg8 43. Qxd4 Qd7 44. Qxd7
Rxd7 45. Rc8+ Kf7 $18) 41... Nxf3 42. Qd5 Qg2 (42... Kg7 43. Nc5 Bxc5 44. Qxc5
Qe6 $18) 43. Rd7 (43. Rd7 Nd2+ 44. Qxd2 Qxe4+ 45. Qd3 Qxd3+ 46. Rxd3 $18) 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "1.2"]
[White "Miyatani, Ryohei"]
[Black "Shinoda, Taro"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1313"]
[BlackElo "1911"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "58"]
[EventDate "2024.03.23"]

{B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} 1. e4
c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Rg1 e5 7. Nb3 Be6 8. g4 d5 9.
exd5 Nxd5 10. Nxd5 Qxd5 11. Qxd5 Bxd5 12. Be3 Nc6 13. O-O-O Bf3 {Black
threatens to win material: Bf3xd1} (13... O-O-O 14. Be2 Be7 15. g5 Be6 16. Nc5
Nd4 17. Bxd4 Rxd4 18. Rxd4 exd4 19. Nd3 g6 20. h4 h6 21. Bg4 Bxg4 22. Rxg4 hxg5
23. hxg5 Rh5 24. Rxd4 Rxg5 25. Kd2 Rf5 26. a4 Kc7 27. b4 b6 28. Ke2 {Savchenko,
B (2652)-Brkic,A (2543) Rijeka 2010 1/2-1/2 (40)}) 14. Re1 $146 (14. Rd2 Rd8 (
14... Rc8 15. Rg3 (15. Bg2 Bxg2 16. Rxg2 Be7 17. f4 exf4 18. Bxf4 O-O 19. Rd7
b5 20. Re2 Rfe8 21. a3 h6 22. c3 Kh7 23. Kc2 Kg6 24. Bd6 Bf6 25. Rxe8 Rxe8 26.
Nc5 Re2+ 27. Kb1 Na5 28. Nd3 Kh7 29. Bf4 g5 {Belousov,D (2354)-Zuykov,A (2320)
Vladimir 2009 1/2-1/2 (50)}) 15... e4 16. g5 Rd8 17. Bf4 Be7 18. Rxd8+ Nxd8 19.
Nd2 Ne6 20. Be3 Bd6 21. Rg1 Bxh2 22. Nxf3 exf3 23. Rg4 Bd6 24. Re4 Kd7 25. Bh3
Rc8 26. b4 a5 27. a3 axb4 28. axb4 Re8 29. Bg4 {Nadj Hedjesi,B (2371)-Bulajic,
R (2321) Zlatibor 2007 1-0}) 15. Nc5 Rxd2 16. Kxd2 Nb4 17. Nd3 Nxd3 18. Bxd3
Bd6 19. h3 Ke7 20. Re1 f6 21. c3 g5 22. Bf5 h5 23. gxh5 Rxh5 24. Bg4 Bxg4 25.
hxg4 Rh4 26. Rg1 e4 27. b3 Ke6 28. Ke2 Rh2 {Kadric,D (2156)-Krstic,P (2309)
Senta 2009 1/2-1/2 (46)}) 14... O-O-O 15. Bb6 {White threatens to win material:
Bb6xd8} Rd7 16. Bd3 g6 {Secures f5} 17. Be4 Bxe4 18. Rxe4 Be7 19. Nd2 Bg5 20.
Be3 Bxe3 {Black forks: d2+f2} 21. Rxe3 Rd4 22. c3 {White threatens to win
material: c3xd4} Rf4 {A classical outpost} 23. f3 h5 24. h3 hxg4 25. hxg4 Rh3
26. Rge1 f6 27. Re4 Rxe4 28. Rxe4 Rg3 (28... Kd7 29. Re2 $15) 29. Kc2 Nd8 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "1.3"]
[White "Sugimoto, Koichi"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1864"]
[BlackElo "1199"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "71"]
[EventDate "2024.03.23"]

{D00: 1 d4 d5: Unusual lines} 1. d4 d5 2. Bf4 Nf6 3. Nc3 e6 4. e3
Bb4 5. Bd3 (5. Nge2 O-O 6. a3 Bd6 7. g3 b6 8. Bg2 Bb7 9. O-O c5 10. Re1 Be7 11.
h3 Nc6 12. g4 Rc8 13. Qd2 a6 14. dxc5 bxc5 15. Rad1 Qa5 16. Nc1 c4 17. N1e2
Rfd8 18. Nd4 Qb6 19. Qc1 Nd7 {Jobava,B (2727)-Caruana,F (2820) Wijk aan Zee
2015 0-1 (54)}) 5... O-O 6. Nge2 $146 (6. Nf3 b6 7. O-O Bb7 8. Nb5 Na6 9. a3
Be7 10. Ne5 c6 11. Nc3 Nc7 12. Qf3 Nce8 13. Qh3 c5 14. g4 c4 15. Be2 Nd6 16.
Qg2 Kh8 17. Bd1 Nfe4 18. Nxe4 dxe4 19. g5 f6 20. gxf6 gxf6 {Bergez,L (2339)
-Narciso Dublan,M (2517) Barcelona 2015 0-1 (62)}) 6... a6 {Prevents intrusion
on b5} 7. O-O c5 (7... Nc6 8. Ng3 $11) 8. dxc5 (8. a3 Bxc3 9. Nxc3 $14 (9. bxc3
$2 c4 $19)) 8... Nc6 $2 (8... Bxc5 $142 {and Black could well hope to play on}
9. Nd4 Bd6 10. Bxd6 Qxd6 $11) 9. Bd6 $16 Re8 10. a3 Ba5 11. b4 Bc7 12. Bxc7
Qxc7 13. e4 b6 14. cxb6 Qxb6 15. exd5 exd5 16. Nf4 Be6 17. Re1 Rad8 (17... Qc7
18. Qd2 $16) 18. Na4 Qa7 19. Nc5 Bg4 20. f3 Rxe1+ 21. Qxe1 Re8 (21... Bc8 22.
Rd1 $16) 22. Qf2 (22. Qh4 Be6 23. Bxa6 Bf5 $18) 22... Bc8 23. c3 Rd8 (23... Qb8
24. Ne2 $18) 24. Re1 $18 d4 $2 (24... h6 $18) 25. c4 (25. Qh4 $142 {might be
the shorter path} Kf8 26. Bxh7 dxc3 $18) 25... a5 (25... Qb8 26. Qh4 h6 27. Nd5
$18) 26. Ne4 (26. Qh4 {seems even better} Kf8 27. Nd5 Re8 28. Rxe8+ Kxe8 29.
Nxf6+ gxf6 30. Qe4+ Ne5 $18) 26... Nd7 (26... Nxe4 27. Bxe4 axb4 28. axb4 Ne7
29. Bxh7+ Kxh7 30. Qh4+ Kg8 31. Rxe7 Bd7 $18) 27. b5 Nce5 28. Bf1 (28. Qh4 {
makes it even easier for White} f6 29. Nxf6+ Nxf6 30. Rxe5 Qc7 31. Bxh7+ Nxh7
$18) 28... Qb6 (28... Bb7 29. Nd6 Ba8 $18) 29. Nd5 Qe6 (29... Qh6 {the only
chance to get some counterplay} 30. Qxd4 Bb7 $18) 30. Qxd4 Nb6 (30... Kf8 {
otherwise it's curtains at once} 31. Qa7 Qg6 $18) 31. Qxb6 Qxb6+ 32. Nxb6 Be6 (
32... f5 {doesn't change anything anymore} 33. Nc5 Nf7 34. Nxc8 Rxc8 35. Nd7
$18) 33. Nc5 Nd7 34. Ncxd7 Rxd7 35. Nxd7 Bxd7 (35... g5 {doesn't get the bull
off the ice} 36. Nc5 Bf5 37. b6 Kg7 38. b7 Kh6 39. b8=Q f6 40. Re7 g4 41. Qf4+
Kg6 42. Qxf5+ Kxf5 43. Bd3+ Kf4 44. g3+ Kg5 45. f4+ Kh5 46. Rxh7#) 36. Re7 (36.
Re7 Bc6 37. bxc6 Kf8 38. Rd7 Ke8 39. Rd5 g6 40. c7 Ke7 41. c8=Q f5 42. Rd7+ Ke6
43. f4 Kf6 44. Qc6#) 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "1.4"]
[White "Shimomura, Kensei"]
[Black "Yoshii, Yukihiko"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1199"]
[BlackElo "1644"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "88"]
[EventDate "2024.03.23"]

{[%mdl 8256] B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} 1.
e4 c6 2. Nf3 d5 3. exd5 cxd5 4. d4 Nc6 5. Nc3 (5. Ne5 e6 6. c3 Nxe5 7. dxe5 Ne7
8. Nd2 Nc6 9. Nf3 Qc7 10. Bf4 Be7 11. Bg3 Bd7 12. Bd3 g5 13. Qe2 h5 14. h4 g4
15. Nd2 a6 16. a4 Bf8 17. O-O Bg7 18. Rfe1 Qb6 19. b4 a5 {Carlsen,M (2714)
-Dreev,A (2607) Moscow 2007 1/2-1/2 (69)}) 5... Nf6 $146 (5... Bg4 6. Bb5 (6.
Be2 e6 7. h3 Bf5 8. Bf4 Nf6 9. O-O Bd6 10. Bxd6 Qxd6 11. Nb5 Qe7 12. c3 O-O 13.
Na3 Ne4 14. Nc2 Bg6 15. Ne3 Rfd8 16. Qe1 a6 17. Nd2 e5 18. dxe5 Nxd2 19. Qxd2
d4 20. Ng4 h5 {Plotkin,V (2306)-Lalith,B (2537) Caleta 2015 0-1 (35)}) 6... Nf6
7. h3 Bxf3 8. Qxf3 a6 9. Bxc6+ bxc6 10. O-O e6 11. Bg5 Be7 12. Na4 Rb8 13. Qd3
Qa5 14. b3 Qb5 15. Qe3 O-O 16. Nc5 Bxc5 17. Bxf6 gxf6 18. dxc5 Qb7 19. Rad1 Kh8
20. Rd4 {Blanco,C (2185)-Ordonez,F (2295) Valencia 2000 0-1}) 6. Bd3 e6 {
Black is behind in developement} 7. O-O {White has an active position} Be7 8.
Bf4 a6 {Consolidates b5} 9. Na4 {White has a very active position} O-O 10. c4
$4 {White lets it slip away} (10. Re1 $142 $11 {would allow White to play on})
10... dxc4 $19 11. Bc2 (11. Bxc4 $2 {doesn't work because of} b5 12. Ne5 Bb7
$19 (12... bxc4 {is clearly weaker} 13. Nxc6 Qe8 14. Nxe7+ Qxe7 15. Nc5 $14))
11... b5 12. Nc5 (12. Nc3 Nb4 $19) 12... Nxd4 $1 {Remove defender: d4.} 13.
Nxd4 (13. Qxd4 Qxd4 14. Nxd4 Bxc5 {Remove defender}) (13. Nxd4 Bxc5 {Remove
defender}) 13... Bxc5 14. Be3 $6 {not the greatest defence} (14. Nf3 Bb7 $19)
14... Qb6 15. a3 (15. Qf3 {hardly improves anything} Bb7 (15... Bxd4 $6 {
is clearly inferior} 16. Bxd4 Qxd4 17. Qxa8 $19) 16. Qf4 e5 17. Bxh7+ Kh8 18.
Qxe5 Rfe8 $19 (18... Nxh7 $6 {is the less attractive alternative} 19. Nf5 Qg6
20. Nh4 $17) (18... Kxh7 $143 19. Ne6 Qxe6 20. Qxe6 fxe6 21. Bxc5 $19)) 15...
Bb7 (15... Rd8 $142 {it becomes clear that Black will call all the shots} 16.
Qe2 Bxd4 17. Bxd4 Rxd4 18. h3 $19) 16. b4 (16. Nf3 {doesn't change the outcome
of the game} Bxe3 17. fxe3 Qxe3+ 18. Kh1 Rad8 $19) 16... cxb3 17. Nxb3 Bxe3 18.
fxe3 Qxe3+ 19. Kh1 (19. Rf2 {does not save the day} Rfd8 20. Qe1 Qb6 $19) 19...
Rfd8 (19... Qh3 $142 $1 {might be the shorter path} 20. Rf2 Ng4 21. Qg1 Nxf2+
22. Qxf2 $19) 20. Qe1 Qxe1 (20... Ng4 {keeps an even firmer grip} 21. Qh4 f5
22. Rfe1 $19) 21. Raxe1 (21. Rfxe1 {cannot change what is in store for White}
Rac8 22. Rac1 Bd5 $19) 21... Rac8 22. Bb1 (22. Rf2 {doesn't do any good} Rc3
$19) 22... h6 (22... Rc3 $142 {makes it even easier for Black} 23. Rd1 Rdc8 24.
Nd2 $19) 23. Nc1 (23. Re3 $19 {is one last hope}) 23... Rd2 24. Ne2 Ng4 25. Kg1
Ne3 26. Rf2 Nxg2 (26... Nd1 $5 {and Black can already relax} 27. Rf4 Nc3 28.
Nxc3 Rxg2+ 29. Kf1 Rxc3 30. Re2 Rc1+ 31. Re1 Rxe1+ 32. Kxe1 Rxh2 33. Rb4 $19)
27. Rxg2 Bxg2 28. Kxg2 Rc4 (28... Rc3 {keeps an even firmer grip} 29. Be4 $19)
29. Kf2 Rc3 30. Rd1 (30. Be4 $19 {is the last straw}) 30... Rxd1 31. Nxc3 Rc1
32. Be4 (32. Nxb5 {a fruitless try to alter the course of the game} Rxb1 33.
Nd6 Rb2+ 34. Kg1 Rb3 $19) 32... Rxc3 33. h4 Rxa3 34. Ke2 f5 35. Bc6 Rc3 36. Bd7
Kf7 37. Kd2 (37. Bc8 {does not improve anything} Rc2+ 38. Kf3 Rxc8 39. Kf2 b4
40. Kg3 b3 41. Kh3 Rc3+ 42. Kg2 b2 43. h5 b1=Q 44. Kf2 Qb2+ 45. Kf1 Rc1#) 37...
b4 (37... Rc7 38. Bc8 Rxc8 39. Ke3 b4 40. Kd3 b3 41. h5 a5 42. Ke3 b2 43. Kf4
b1=Q 44. Ke3 Rc3+ 45. Kd4 Qb4+ 46. Ke5 Re3#) 38. Ba4 Kf6 39. h5 e5 40. Bc2 (40.
Bb3 {is no salvation} Rxb3 41. Kc2 Rc3+ 42. Kd2 e4 43. Kd1 b3 44. Ke1 Rc2 45.
Kd1 e3 46. Ke1 b2 47. Kd1 b1=Q#) 40... e4 41. Kd1 (41. Bb1 {is not the saving
move} Ke5 42. Kd1 Rd3+ 43. Ke1 Rh3 44. Ke2 Rh2+ 45. Kf1 Rh1+ 46. Ke2 Rxb1 47.
Ke3 Ra1 48. Kd2 Ra2+ 49. Kc1 b3 50. Kd1 Rc2 51. Ke1 b2 52. Kd1 b1=Q#) 41... Ke5
42. Kd2 (42. Bb1 {does not solve anything} Rd3+ 43. Ke2 Rh3 44. Kd2 Rh2+ 45.
Kd1 b3 46. Ke1 Rb2 47. Kf1 Rxb1+ 48. Ke2 Rb2+ 49. Ke1 Rg2 50. Kf1 Rc2 51. Kg1
b2 52. Kf1 b1=Q#) 42... Kd4 {[%cal Ye4e3] Black prepares the advance e3} 43.
Bd3 (43. Ba4 {does not help much} e3+ 44. Ke2 b3 45. Kf3 b2 46. Kf4 b1=Q 47.
Bc6 Qg1 48. Bg2 Qxg2 49. Kxf5 Qe4#) 43... Rxd3+ 44. Kc2 (44. Ke2 {hardly
improves anything} b3 45. Ke1 b2 46. Ke2 b1=Q 47. Kf2 Qc2+ 48. Kf1 Rd1#) 44...
e3 (44... e3 45. Kb1 e2 46. Kb2 e1=Q 47. Kc2 Kc4 48. Kb2 Rd2#) 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "1.5"]
[White "Kawamura, Takuto"]
[Black "Furuse, Mizuki"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "1601"]
[BlackElo "1157"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "81"]
[EventDate "2024.03.23"]

{[%mdl 8256] E60: King's Indian: Unusual lines and Fianchetto Variation
without Nc3} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. c4 d6 6. O-O Nbd7 7.
Qc2 Re8 (7... a6 8. Rd1 c5 9. e4 Qc7 10. Be3 cxd4 11. Bxd4 Ne5 12. Nbd2 Be6 13.
Rac1 Rfc8 14. Qb1 Nxf3+ 15. Nxf3 Qa5 16. b3 Bh6 17. Rc3 Nd7 18. Qb2 Qh5 19. Re1
b5 20. cxb5 axb5 21. e5 dxe5 22. Nxe5 {Stangl,M (2530)-Ankerst,M (2360)
Germany 1998 0-1 (46)}) 8. e4 (8. Rd1 c5 9. Nc3 a6 10. h3 Qc7 11. b3 b6 12. e4
cxd4 13. Nxd4 Bb7 14. a4 Rac8 15. Be3 Qb8 16. Rac1 Qa8 17. Qb1 e6 18. Nde2 Bf8
19. g4 h6 20. Ng3 Qb8 21. Bd4 Bg7 22. Qb2 Ba8 {Melkumyan,H (2673)-Kraus,O 
(2190) Jerusalem 2015 0-1 (43)}) 8... e5 9. d5 {Black's piece can't move: c8}
Nc5 $146 {Black threatens to win material: Nc5xe4} (9... a5 10. Nc3 Nc5 11. Ne1
Rf8 12. Nd3 Nfd7 13. Nxc5 Nxc5 14. f4 exf4 15. Bxf4 Bd7 16. Rae1 Qe7 17. Qd2
Rae8 18. Re2 Bg4 19. Ree1 Bd7 20. Re2 Qd8 21. Rfe1 Bg4 22. Rf2 h6 23. h3 Bd7
24. h4 {Junge,K (2238)-Lichman,P (2324) Germany 2007 0-1 (61)}) 10. Re1 a5 11.
Nc3 Nh5 12. Bg5 {White threatens to win material: Bg5xd8} f6 {Black threatens
to win material: f6xg5} (12... Nf6 13. b3 $11) 13. Be3 $14 Na6 14. a3 f5 {
Black has a cramped position} 15. Bg5 (15. exf5 Bxf5 16. Qd2 Nf6 $14) 15... Nf6
16. Nh4 h6 (16... fxe4 17. Nxe4 Nc5 18. Nxc5 dxc5 19. a4 $14) 17. Bxf6 (17. Bd2
$142 $5 $16) 17... Qxf6 $14 18. exf5 gxf5 {Black has the pair of bishops} 19.
Bh3 {White threatens to win material: Bh3xf5} Rf8 {Black has a cramped position
} 20. Rad1 e4 {This push gains space} (20... Qg5 21. f3 $11) 21. Ng2 (21. f3 $5
$14 {is worth looking at}) 21... Qg5 $11 22. Nf4 {A comfortable square for the
white knight} Be5 23. Nce2 Bd7 24. b3 {Prevents intrusion on a4} Nc5 {[%cal
Ya5a4] Black plans a4} (24... h5 25. Qc1 $15) 25. Bg2 a4 {Black threatens to
win material: a4xb3} (25... h5 $142 $5 $15 {is interesting}) 26. b4 $11 {
White threatens to win material: b4xc5} Nb3 {Black can be proud of that piece}
27. c5 (27. f3 h5 28. h4 Qg7 $11) 27... dxc5 28. bxc5 Ra6 $4 {allows the
opponent back into the game} (28... Ra5 $5 {should be examined more closely}
29. c6 Rc5 $11) 29. Qc4 (29. c6 Bc8 30. cxb7 Bxb7 31. Ne6 $18) 29... Kh8 $2 (
29... Na5 $142 {is a viable option} 30. Qb4 Re8 $14) 30. c6 $18 {Deflection: a6
} Na5 $4 {a blunder in a bad position} (30... bxc6 31. Qxa6 {Deflection}) 31.
Qb5 (31. Qb4 $142 {makes sure everything is clear} Rfa8 32. cxd7 Qd8 $18) 31...
Be8 (31... Bc8 32. cxb7 Bxb7 33. Ne6 $18) 32. Ne6 Qg8 (32... Qe7 33. Nxf8 Qxf8
34. f3 $18) 33. Nxf8 (33. Qb4 $142 {might be the shorter path} Rf6 34. cxb7
Nxb7 35. Qxb7 Rd6 $18) 33... Qxf8 34. Nd4 Bxd4 (34... Ra8 {is still a small
chance} 35. Qb4 Qxb4 36. axb4 bxc6 37. Nxf5 Nc4 38. Rxe4 Bg6 $18) 35. Rxd4 Qxa3
(35... Nb3 {what else?} 36. Qxb7 Nxd4 37. Qxa6 Qxa3 $18) 36. cxb7 $3 {Mate
threat} Bxb5 (36... Z0 $140 37. Qxe8+ {Mate threat}) 37. b8=Q+ Kh7 38. Qxb5 Ra8
(38... Qc3 39. Qd7+ Kg8 40. Qe8+ Kg7 41. Rdxe4 fxe4 42. Rxe4 Qe5 43. Qxe5+ Rf6
44. Qe7+ Kg6 45. Rg4+ Kh5 46. Qg7 Rxf2 47. Rh4#) 39. Qd7+ (39. d6 Rf8 40. dxc7
Kg6 41. Qd7 h5 42. Qe6+ Rf6 43. Qg8+ Kh6 44. c8=Q Rg6 45. Qh8+ Kg5 46. h4+ Kg4
47. Rdxe4#) 39... Kg6 40. Qe6+ (40. Bxe4 Qa1 41. Bxf5+ Kf6 42. Qe7+ Kxf5 43.
Qf7+ Kg5 44. h4#) 40... Kh5 41. Qxf5# 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "1.6"]
[White "Kuramoto, koutarou"]
[Black "Aoki, Yasuhiro"]
[Result "0-1"]
[ECO "E97"]
[BlackElo "1598"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "68"]
[EventDate "2024.03.23"]

{[%mdl 8256] E97: King's Indian: Classical Main Line (6...e5 7 0-0 Nc6): 8 Be3
and 8 d5 Ne7, not 9 Ne1} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6.
Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 Nd7 10. a4 f5 (10... h6 11. Ba3 f5 12. c5 Nf6
13. Nd2 fxe4 14. Ndxe4 Nf5 15. b5 b6 16. cxd6 cxd6 17. Nxf6+ Bxf6 18. Ne4 Be7
19. Bg4 Nd4 20. Rc1 Rf4 21. Bxc8 Rxe4 22. Qd3 Rh4 23. Qxg6+ Kh8 24. Bf5 Qg8 25.
Rc7 {Karjakin,S (2723)-Polgar,J (2680) Moscow 2009 1-0 (35)}) 11. Ba3 (11. Ng5
Nf6 12. f3 h6 13. Ne6 Bxe6 14. dxe6 c6 15. Be3 Kh7 16. a5 Ne8 17. a6 b6 18. b5
f4 19. Bc1 c5 20. Ra2 Qc8 21. Rf2 Qxe6 22. Bf1 Nf6 23. g4 Ne8 24. h4 Bf6 25.
Rh2 {1/2-1/2 (25) Podkriznik,G (2332)-Plakalovic,P (2258) Rogaska Slatina 2011}
) 11... b6 $146 {Black has a cramped position} (11... Nf6 12. Nd2 Bh6 13. Bf3 (
13. Bd3 Bxd2 14. Qxd2 f4 15. Rfc1 g5 16. c5 Ng6 17. b5 b6 18. cxd6 cxd6 19. Nd1
Ne8 20. Bb4 Rf7 21. a5 Rb8 22. axb6 axb6 23. Ra3 g4 24. Qa2 Bb7 25. Rcc3 Rg7
26. Bf1 Nf6 27. Qc2 h5 {Sellos,D (2372)-Lode,S (2207) Paris 2000 1-0 (39)})
13... f4 (13... Bxd2 14. Qxd2 f4 15. Be2 g5 16. f3 Ng6 17. Kf2 Rf7 18. Ke1 Kh8
19. Kd1 g4 20. Kc2 gxf3 21. gxf3 Bh3 22. Rg1 a5 23. b5 b6 24. Bf1 Bd7 25. Qf2
Nh5 26. Ra2 Qf6 27. Nd1 Rg8 28. Kb3 {Samakov,N (2179)-Nguyen,V (2325) Bikaner
2004 1-0 (37)}) 14. c5 g5 15. Nc4 g4 16. Be2 Qd7 17. g3 Rf7 18. b5 f3 19. Bd3
Ne8 20. b6 cxb6 21. cxd6 Ng6 22. Nb5 Qd8 23. Qb3 Bd7 24. Nc7 Rc8 25. Ne6 Qf6
26. Nc7 {Bellaiche,A (2189)-Lode,S (2203) Pau 2000 1-0 (54)}) (11... Nf6 12.
Nd2 $11) 12. Ne1 (12. Ng5 $5 Nf6 13. Bf3 $14) 12... a5 13. Nd3 (13. bxa5 Rxa5
14. Bb4 Ra6 $11) 13... axb4 $15 {Black forks: a3+c3} 14. Bxb4 fxe4 15. Nxe4 {
The knight feels good on e4} Nf5 16. a5 {White has a very active position} Nd4
{Menacing} 17. Bg4 Nf6 18. Nxf6+ Rxf6 19. Bxc8 Qxc8 20. axb6 Rxa1 21. Qxa1 cxb6
22. Qa2 Bh6 23. Bc3 Qg4 24. Bxd4 Qxd4 ({Less advisable is} 24... exd4 25. Re1
$14) 25. Qc2 e4 {Black threatens to win material: e4xd3} 26. Nc1 $2 (26. Qb2
$142 {and White can hope to live} Qxb2 27. Nxb2 $15) 26... e3 $19 27. Nd3 $2 (
27. Qd3 $142 exf2+ 28. Kh1 $19) 27... exf2+ 28. Nxf2 (28. Kh1 {the last chance
for counterplay} Bg5 29. Nb2 $19) 28... Rxf2 $1 {Decoy: f2} 29. Rxf2 (29. Qxf2
Be3 {Decoy}) (29. Rxf2 Qa1+ 30. Qb1 (30. Qd1 Qxd1+ {Mate attack}) (30. Qc1
Qxc1+ {Mate attack}) (30. Rf1 Be3+ {Decoy Double attack}) 30... Qxb1+ {Mate
attack}) (29. Z0 $140 Rxc2+ {Mate threat}) 29... Qa1+ 30. Rf1 Be3+ 31. Qf2
Bxf2+ 32. Kxf2 Qa2+ 33. Kg1 (33. Kg3 {does not win a prize} Qxc4 34. Rf4 Qc3+
35. Kf2 Qd2+ 36. Kg3 b5 $19) 33... Qxc4 34. Ra1 Qd4+ (34... Qd4+ 35. Kf1 Qxa1+
36. Kf2 b5 37. Kf3 b4 38. h3 b3 39. Ke2 b2 40. Kf2 b1=Q 41. Kf3 Qd3+ 42. Kg4
Qe5 43. g3 Qdxg3#) 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "1.7"]
[White "Hasegawa, Emi"]
[Black "Ono, Yukiko"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "1417"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "57"]
[EventDate "2024.03.23"]

{D20: Queen's Gambit Accepted: 3 e3 and 3 e4} 1. d4 d5 2. c4 dxc4
3. e4 Nf6 4. Nc3 Bg4 (4... c6 5. Bxc4 b5 6. Bd3 a6 7. Nf3 e6 8. Bg5 h6 9. Bh4
Nbd7 10. O-O Bb7 11. d5 e5 12. Rc1 c5 13. a4 c4 14. Be2 Qb6 15. Bxf6 gxf6 16.
Nh4 Nc5 17. Bh5 Rh7 18. Nf5 Rd8 19. Qg4 {Aliev,K (2385)-Ghorbani,M (2430)
Teheran 1998 1-0 (37)}) (4... a6 5. e5 Nd5 6. Bxc4 e6 7. Nxd5 exd5 8. Bb3 c5 9.
dxc5 Be6 10. Be3 Nc6 11. Nf3 Bxc5 12. Bxc5 Qa5+ 13. Qd2 Qxc5 14. Rc1 Qa5 15.
Qxa5 Nxa5 16. Rc5 b6 17. Rc7 Kd8 18. Rc3 Ke7 19. Kd2 {Siebrecht,S (2457)-Lubbe,
N (2353) Bad Liebenzell 2010 0-1 (59)}) 5. f3 Bh5 6. Bxc4 Nc6 $146 (6... e6 7.
Nge2 a6 8. Be3 c6 9. Qd2 Nbd7 10. h3 Bg6 11. g4 e5 12. h4 h6 13. O-O-O b5 14.
Bb3 exd4 15. Bxd4 c5 16. Bxf6 Nxf6 17. Qf4 Qb8 18. e5 Nd7 19. h5 Bxh5 20. Rxh5
c4 21. Bc2 {Cherednichenko,S (2166)-Vinogradov,P (2234) Alushta 2000 1-0}) 7.
Be3 e6 8. Nge2 Bd6 $2 (8... Bb4 $142 $16) 9. e5 $18 Bb4 (9... Nxe5 10. dxe5
Bxe5 11. Qb3 $18) 10. exf6 gxf6 11. Qb3 a5 (11... O-O {does not help much} 12.
O-O Qe7 13. a3 $18) 12. O-O-O (12. O-O {keeps an even firmer grip} O-O $18)
12... O-O (12... Bg6 {does not solve anything} 13. d5 exd5 14. Nf4 $18 (14.
Nxd5 a4 15. Qxb4 Nxb4 16. Nxb4 Qc8 $18) (14. Rxd5 $143 Qe7 15. Ne4 a4 $18)) 13.
d5 Ne5 14. dxe6 Nd3+ (14... Qe8 {a last effort to resist the inevitable} 15.
Ne4 fxe6 16. Bxe6+ Kh8 $18) 15. Rxd3 Qe7 16. Rd7 (16. Nd5 $142 {and the result
of the game is clear: White will win} Qxe6 17. Nef4 b5 18. Bxb5 Qf5 $18) 16...
Qe8 17. Nd5 (17. Ne4 $142 {makes it even easier for White} fxe6 18. Bxe6+ Kh8
$18) 17... Qxe6 (17... fxe6 {doesn't get the bull off the ice} 18. Nxc7 Qxd7
19. Nxa8 $18) 18. Ne7+ (18. Nef4 $142 {and White wins} Qf5 19. Nxh5 Kh8 20.
Ndxf6 Rad8 $18) 18... Qxe7 19. Rxe7 Rad8 20. Rxc7 Bg6 21. Nf4 Bf5 22. Bxf7+ Kg7
23. Nh5+ (23. Be6+ Rf7 24. Rxf7+ Kg8 25. Bxf5 Rc8+ 26. Rc7+ Kh8 27. Rxc8+ Bf8
28. Rxf8+ Kg7 29. Ne6#) 23... Kh8 24. Nxf6 (24. Bh6 Bd2+ 25. Bxd2 Rd7 26. Rxd7
Rc8+ 27. Bc3 Bxd7 28. Qb6 Rxc3+ 29. bxc3 h6 30. Qxf6+ Kh7 31. Qg7#) 24... Bd2+
25. Bxd2 b5 (25... Rxd2 {is not much help} 26. Kxd2 h5 27. Qc3 Rd8+ 28. Nd5+
Kh7 29. Bg8+ Kxg8 30. Qg7#) 26. Qc3 b4 (26... Rxf7 {doesn't change the outcome
of the game} 27. Ng4+ Rd4 28. Qxd4+ Kg8 29. Nh6+ Kf8 30. Qh8#) 27. Qe5 (27.
Nd5+ bxc3 28. Bxc3#) 27... h6 (27... Rxf7 {doesn't change anything anymore} 28.
Ng4+ Kg8 29. Nh6+ Kf8 30. Rxf7#) 28. Nh5+ Kh7 29. Qg7# 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "1.8"]
[White "Shishido, Kenta"]
[Black "Nakamura, Mitsuru"]
[Result "1/2-1/2"]
[ECO "B86"]
[BlackElo "1406"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "153"]
[EventDate "2024.03.23"]

{B86: Sicilian Scheveningen/Najdorf: 6 Bc4, without early ...b5} 1.
e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e6 7. Bc4 Qc7 8. Qe2 (8.
Ba2 Nc6 9. O-O Be7 10. Kh1 O-O 11. f4 Nb4 12. Bb3 Rd8 13. f5 e5 14. Nde2 b6 15.
Ng3 d5 16. exd5 Bb7 17. Nh5 Nxh5 18. Qxh5 Nxd5 19. Bg5 Bxg5 20. Nxd5 Bxd5 21.
Qxg5 h6 22. Qg3 Bxb3 {Suran,J (2401)-Fedorchuk,S (2569) Czechia 2004 0-1 (66)})
8... Be7 9. O-O h6 $146 {Covers g5} (9... O-O 10. Be3 Nc6 11. Nxc6 Qxc6 12. Bd4
Bd7 13. a5 Rfe8 14. Bb3 Qc8 15. Na4 Bb5 16. c4 Bxa4 17. Bxa4 Rf8 18. Rfd1 Nd7
19. b4 Ne5 20. c5 Nc6 21. cxd6 Bxd6 22. Bxg7 Bxh2+ 23. Kxh2 Qc7+ 24. e5 {
Berzinsh,R (2421)-Germanavicius,S (2376) Lithuania 2014 0-1 (45)}) (9... Nc6
10. Be3 Nxd4 (10... Bd7 11. f4 Rc8 12. Ba2 Na5 13. Rad1 Nc4 14. Bc1 Qc5 15. Kh1
O-O 16. e5 dxe5 17. fxe5 Nd5 18. Ne4 Qc7 19. Bxc4 Qxc4 20. Qxc4 Rxc4 21. b3 Rc7
22. c4 Nb4 23. Ba3 b6 24. Rd2 a5 25. Rfd1 {Nuri,K (2322)-Ganguly,S (2619) Biel
2014 0-1 (41)}) 11. Bxd4 e5 12. Be3 Be6 13. Bb3 h6 14. Rfd1 O-O 15. a5 Rac8 16.
Bb6 Qc6 17. Rd3 Bxb3 {1/2-1/2 (17) Chojnacki,K (2416)-Szelag,M (2455) Poznan
2010}) 10. Be3 O-O {Black is behind in development.} 11. Rad1 Nc6 12. Nxc6 bxc6
{Black has a cramped position} 13. b4 $4 {with this move White loses his
initiative} (13. Bf4 $5 $11) 13... Bb7 (13... d5 14. Bd3 $17 (14. exd5 $4 cxd5
15. b5 axb5 16. axb5 Qxc4 17. Qxc4 dxc4 $19)) 14. b5 $2 (14. Bf4 $142 $5 $11 {
and White hangs on}) 14... cxb5 $17 15. axb5 axb5 (15... Rac8 $142 {Black has
the better game} 16. bxa6 Ba8 $17) 16. Nxb5 $11 Qc6 {Black threatens to win
material: Qc6xe4} 17. Bd4 $2 (17. f3 $142 $5 $11 {and White is still in the
game}) 17... e5 18. Na7 (18. Bb2 $142 $5 $17) 18... Qxe4 $19 19. Qxe4 Bxe4 20.
Be3 d5 (20... Bxc2 $6 21. Nc6 Rfe8 22. Nxe7+ Rxe7 23. Rxd6 $15) 21. Bb3 $2 (21.
f3 d4 22. fxe4 dxe3 23. Nc6 $19) 21... d4 22. Bxd4 exd4 23. Nb5 Bc5 24. Rfe1 (
24. Nxd4 {is not the saving move} Rfd8 25. Nf3 Ng4 $19) 24... Rfd8 25. c3 (25.
h3 {doesn't get the cat off the tree} Rab8 26. Ba4 Bb4 $19) 25... dxc3 (25...
d3 $5 {makes it even easier for Black} 26. h3 $19) 26. Nxc3 Rxd1 27. Rxd1 Bb4 (
27... Bg6 $142 {and Black has triumphed} 28. Bd5 Ra3 29. Rc1 $19) 28. Nxe4 Nxe4
29. f3 (29. g3 {doesn't improve anything} Bc5 30. Rd7 Bxf2+ 31. Kg2 Rf8 $19)
29... Nd2 (29... Bc5+ $5 {keeps an even firmer grip} 30. Kf1 Nc3 31. Rc1 $19)
30. Bd5 Ra5 31. Be4 (31. Bc6 {a fruitless try to alter the course of the game}
Rc5 32. Ba4 Rc4 $19) 31... Bc5+ 32. Kh1 Be3 (32... Nxe4 {seems even better} 33.
fxe4 Ra4 34. Rc1 $19) 33. h4 (33. Bc6 {doesn't do any good} Rc5 34. Ba8 g5 $19)
33... Re5 (33... Nxe4 {might be the shorter path} 34. fxe4 Bf2 35. Rd3 Bxh4 36.
g3 $19) 34. Re1 (34. Bc6 {cannot change what is in store for White} Rc5 35. Bb7
Rc7 $19) 34... Nc4 (34... Nxe4 $142 {and Black can celebrate victory} 35. fxe4
Bf2 36. Re2 $19) 35. Ra1 g6 36. Ra4 Nd2 37. g4 (37. Bc6 {does not improve
anything} Bc5 $19) 37... Rc5 38. Ra3 (38. Ra1 {cannot change destiny} Nxe4 39.
fxe4 Rc1+ 40. Rxc1 Bxc1 $19) 38... Rc1+ 39. Kg2 (39. Kh2 {does not save the day
} Re1 40. Bd3 Bc5 $19) 39... Bf4 (39... Rg1+ 40. Kh3 Nf1 41. Ra8+ Kg7 42. Rg8+
Kxg8 43. h5 Rg3+ 44. Kh4 Bg5#) 40. h5 (40. Bd5 {is no salvation} Nf1 41. Bb3
Ne3+ 42. Kf2 Rc3 $19) 40... Nc4 (40... gxh5 {and Black can already relax} 41.
gxh5 Rc5 42. Ra4 $19) 41. Ra8+ Kg7 42. hxg6 Ne3+ (42... fxg6 $142 {keeps an
even firmer grip} 43. Ra7+ Kf6 44. Ra6+ Nd6 45. Bd3 $19) 43. Kf2 Rf1+ (43...
fxg6 44. Ra7+ Kf6 45. Ra6+ Kg5 46. Ke2 $19) 44. Ke2 fxg6 45. Ra6 Rg1 46. Rxg6+
Kh8 47. Rf6 Rg2+ 48. Kd3 Bg5 49. Rf8+ Kg7 50. Re8 Nd1 51. f4 $2 (51. Kc4 $142
Rd2 52. Kc5 $19) 51... Bf6 $4 {forfeits the clear win} (51... Nb2+ $142 {
secures the point} 52. Ke3 Rg3+ 53. Bf3 Nd1+ 54. Ke2 Bxf4 $19) 52. Bxg2 $18
Nf2+ 53. Ke3 Nxg4+ 54. Kf3 (54. Ke4 {makes it even easier for White} h5 $18)
54... h5 55. Bh3 Nh6 56. Ke4 Kf7 57. Bd7 h4 58. Ra8 Ke7 (58... Bc3 59. Ra7 $18)
59. Ra6 (59. Ra7 {might be the shorter path} Bg7 $18) 59... Nf7 $2 (59... Kf7
60. Bf5 $18) 60. Bh3 (60. Re6+ $142 $5 {seems even better} Kxd7 61. Rxf6 Ke7
$18) 60... Nd6+ 61. Kd5 Ne8 $4 {terrible, but the game is lost in any case} (
61... Nb5 62. Kc5 Nc3 $18) 62. Ra7+ Kf8 63. Ke6 Bd4 64. Rf7+ (64. Ra8 $5 {
seems even better} Bc3 $18) 64... Kg8 65. Ke7 (65. Rd7 $142 {and White can
already relax} Ng7+ 66. Ke7 Bc5+ 67. Kf6 Nh5+ 68. Kg5 $18) 65... Ng7 (65... Nd6
66. Rf8+ Kg7 $18) 66. Rf8+ Kh7 67. f5 {Loses material} (67. Kf7 Nh5 68. Rd8 $18
) 67... Bc5+ $11 {Black skewers: f8} 68. Kf7 Bxf8 69. Kxf8 {A minor pieces
endgame occured} Nh5 70. Kf7 Nf4 71. f6 $4 {lets it slip away} (71. Bg4 Kh6 $11
) 71... Nd5 (71... Nxh3 $142 {secures the win} 72. Ke8 Ng5 $19) 72. Ke6 Nxf6 {
Sacrifices material.} 73. Kxf6 {White wins a piece} Kh6 74. Kf5 Kh5 75. Kf4 Kg6
76. Kg4 {White threatens to win material: Kg4xh4} Kf6 77. Kxh4 1/2-1/2

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "2.1"]
[White "Aoki, Yasuhiro"]
[Black "Yamaguchi, Tosei"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "1598"]
[BlackElo "1940"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "80"]
[EventDate "2024.03.23"]

{A26: English Opening vs King's Indian with ...Nc6 and d3} 1. c4 g6 2. Nf3 Bg7
3. g3 e5 4. Nc3 Nc6 5. Bg2 Nge7 6. O-O d6 7. d3 h6 8. e4 $146 (8. Bd2 O-O 9.
Rb1 Be6 10. b4 Qd7 11. b5 Nd8 12. Qc1 Kh7 13. Ne1 Bh3 14. Nd5 Bxg2 15. Nxg2 Ng8
16. f4 f5 17. Bc3 Ne6 18. fxe5 dxe5 19. Qb2 c6 20. Nde3 Nd4 21. bxc6 bxc6 22.
Bxd4 exd4 {Walach,M (2220)-Morkisz,B (2185) Slask 1996 1/2-1/2 (58)}) (8. Rb1
a5 (8... Be6 9. b4 Qd7 10. b5 Nd8 11. Ba3 f5 (11... O-O 12. Qa4 f5 13. Rfc1 Rf7
14. Nd2 g5 15. Nb3 f4 16. Na5 Bh3 17. Be4 Nf5 18. Bd5 Ne6 19. Nxb7 Raf8 20.
Qxa7 Nfd4 21. b6 fxg3 22. fxg3 e4 23. Nc5 dxc5 24. b7 Nf4 25. Bxc5 Nxd5 26.
Bxf8 {Aijala,J (2200)-Krnic,Z (2400) Graz 1972 0-1}) 12. e3 g5 13. c5 O-O 14.
Nd2 e4 15. Qc2 dxc5 16. dxe4 f4 17. exf4 gxf4 18. Bxc5 Rf7 19. Rbd1 Bh3 20. Nb3
Qe6 21. f3 Bxg2 22. Kxg2 Qc4 23. Rc1 {Heberla,B (2527)-Angskog,K (2215)
Bugibba 2011 1-0 (34)}) 9. a3 Nd4 10. b4 axb4 11. axb4 O-O 12. b5 Bg4 13. Nd2
Qc8 14. Re1 Bh3 15. Bh1 Kh7 16. e3 Ne6 17. Nd5 Nxd5 18. cxd5 Nc5 19. Qc2 b6 20.
Nc4 Qf5 21. e4 Qd7 22. Be3 Qe7 {Rechlis,G (2445)-Speelman,J (2555) Beersheba
1987 1/2-1/2}) (8. Ne1 O-O 9. Rb1 a5 10. a3 Be6 11. Nd5 f5 12. f4 Qd7 13. Qa4
Ra6 14. Bd2 Rb8 15. Nc2 Kh7 16. e4 Ng8 17. Nce3 exf4 18. Nxf4 Nd4 19. Qd1 fxe4
20. Bxe4 Bf7 21. Nh5 Be5 22. Nd5 Re8 {Popov,L (2410)-Krnic,Z (2435) Wijk aan
Zee 1977 1-0 (46)}) 8... Bg4 9. h3 {White threatens to win material: h3xg4} Be6
10. Be3 Qd7 11. Kh2 O-O 12. Nd5 f5 13. Nxe7+ (13. Qb3 fxe4 14. dxe4 Nd4 15.
Nxd4 exd4 $11) 13... Nxe7 14. exf5 Nxf5 15. Qd2 c6 16. Rac1 c5 (16... Qc7 17.
Qe2 $15) 17. b3 Rae8 18. g4 Nxe3 19. Qxe3 {Black has the pair of bishops} Rf4 {
An ideal square for the black rook.} 20. Nd2 Ref8 21. Ne4 b6 22. f3 (22. Nc3
Bf6 $15) 22... d5 23. Nf2 Qd6 {[%cal Yd5d4] Black prepares d4} 24. Kh1 (24.
cxd5 Bxd5 25. Ne4 Qe7 $17) 24... Qe7 25. Kh2 Qh4 26. Qe2 $2 (26. cxd5 Bxd5 27.
Ne4 Qe7 $17) 26... d4 $4 {releasing the pressure on the opponent} (26... e4
$142 {and Black has reached his goal} 27. Nh1 Be5 $19) 27. Ne4 $17 h5 28. Qf2 (
28. Kg1 Bh6 $17) 28... Qe7 (28... Rxg4 $5 29. Qxh4 Rxh4 30. Kg3 $19) 29. Qg3 h4
30. Qe1 Bh6 31. Rc2 Bc8 32. Re2 (32. b4 cxb4 33. c5 Bb7 $17) 32... Bb7 33. Ref2
R4f7 34. Re2 Rf4 {Twofold repetition} 35. Ref2 R8f7 (35... Kg7 36. Re2 $17) 36.
Qe2 (36. Re2 Bc6 $17) 36... Bc6 37. Qe1 Ba8 38. Qe2 (38. Re2 Rf8 $17) 38... Rf8
39. Qe1 R4f7 40. Qe2 $2 (40. Re2 $142 $17) 40... Be3 $19 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "2.2"]
[White "Shinoda, Taro"]
[Black "Kawamura, Takuto"]
[Result "1-0"]
[ECO "E00"]
[WhiteElo "1911"]
[BlackElo "1601"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "57"]
[EventDate "2024.03.23"]

{E00: Catalan Bogo-Indian (3 g3 Bb4+)} 1. d4 Nf6 2. c4 e6 3. g3
Bb4+ 4. Nd2 O-O 5. Bg2 d5 6. Qc2 c6 7. Ngf3 Re8 8. O-O Nbd7 9. e4 dxe4 10. Nxe4
Nxe4 11. Qxe4 Nf6 12. Qe2 $146 (12. Qc2 Be7 13. Rd1 Qa5 14. a3 Bd7 15. Ne5 Red8
16. Bf4 Rac8 17. a4 Be8 18. c5 b6 19. Bf1 bxc5 20. Nc4 Qb4 21. Bd2 Qb8 22. Bf4
Qb4 23. Bd2 Qb8 {1/2-1/2 (23) Kopylov,M (2445)-Reddmann,H (2338) Hamburg 2004})
12... Bd6 13. Rd1 Bd7 14. Ne5 h6 15. h4 Be7 16. Rb1 Rc8 17. b4 b6 (17... b5 $5
$16) 18. a4 $18 b5 (18... Bd6 $18) 19. axb5 cxb5 20. c5 Nd5 (20... Rc7 21. c6
Bc8 22. Qxb5 $18) 21. Bd2 (21. Bxh6 $142 {and White can already relax} Bf6 22.
Qg4 $18) 21... Bf6 $16 22. Ra1 Rc7 23. Ra5 Bc8 24. Bxd5 (24. Qg4 $142 {the
advantage is on the side of White} a6 25. Bxh6 Nxb4 26. c6 $16) 24... Qxd5 $11
25. Qxb5 ({Inferior is} 25. Rxb5 Ba6 26. Ng4 Be7 $11 (26... Bxb5 $143 27. Qxb5
Rd8 28. Bf4 $11)) 25... Rd8 26. Bf4 Bxe5 27. Bxe5 Bb7 28. c6 {White threatens
to win material: c6xb7} Bxc6 $4 (28... Qxc6 29. Qxc6 Rxc6 $11 (29... Bxc6 $4
30. Bxc7 Rd7 31. Rxa7 $18)) 29. Qxd5 $18 (29. Qxd5 Rxd5 30. Bxc7 Rxa5 31. bxa5
$18) 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "2.3"]
[White "Yoshii, Yukihiko"]
[Black "Hasegawa, Emi"]
[Result "1-0"]
[ECO "A38"]
[WhiteElo "1644"]
[BlackElo "1417"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "105"]
[EventDate "2024.03.23"]

{A38: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6} 1. c4 c5
2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. e3 e5 (7... d5 8. cxd5
Nxd5 9. d4 cxd4 10. Nxd4 Nxd4 11. exd4 Be6 12. Qf3 Nxc3 13. bxc3 Rc8 14. Bg5 b6
15. Rfc1 Qd7 16. d5 Bg4 17. Qd3 h6 18. Bf4 Bf5 19. Qd2 g5 20. Be3 Rfd8 21. h4
gxh4 22. Bxh6 {Van Wely,L (2636)-Dlugy,M (2531) Internet 1999 0-1 (67)}) (7...
d6 8. Qe2 e5 9. d3 h6 10. Bd2 Be6 11. a3 e4 12. dxe4 Na5 13. Nd5 Nxe4 14. Bxa5
Qxa5 15. Nf4 Bd7 16. Rfd1 Rae8 17. Nd2 Nf6 18. b4 Qc7 19. Rab1 b6 20. Rdc1 Bf5
21. Rb3 g5 22. Nd5 {Balog,I (2491)-Shyam,N (2393) Kemer 2009 1-0 (61)}) 8. d4
$146 (8. d3 d6 9. e4 Ne8 10. Ne1 Nc7 11. Be3 f5 12. f4 {1/2-1/2 (12) Poliakov,
Y (2249)-Kagramanianz,V (2346) Pavlograd 2000}) 8... exd4 (8... d6 9. d5 Na5
10. Nd2 $11) 9. exd4 cxd4 10. Nxd4 Nh5 (10... Nxd4 $142 $5 {is noteworthy} 11.
Qxd4 Re8 $14) 11. Be3 $16 Ne5 12. Qe2 a6 13. Rfd1 Qc7 (13... Re8 14. Nf5 $1 {
Deflection: h5} gxf5 15. Qxh5 $18) 14. b3 (14. Nd5 Qd8 15. Nf5 gxf5 16. Qxh5 d6
$18) 14... Nc6 (14... Nf6 $5 $16) 15. Rac1 Qa5 (15... Re8 16. Nf5 $1 {
Deflection: h5} Nf4 17. gxf4 gxf5 18. Nd5 $18) 16. Qd2 (16. Nd5 $5 Nf6 17. Nxc6
dxc6 $18) 16... Nf6 17. h3 (17. Na4 Qxd2 18. Rxd2 Ng4 19. Nxc6 dxc6 $18) 17...
Re8 $16 18. Kh2 Qh5 19. Bf3 Qa5 20. Kg2 Ne5 21. Bd5 Nxd5 (21... Rb8 22. f4 Nc6
$16 (22... Nxd5 $2 {doesn't lead to the expected results} 23. cxd5 (23. Nxd5 $6
Qxd2+ 24. Rxd2 Nc6 $16) 23... Nc6 24. dxc6 dxc6 25. Nf3 $18)) 22. Nxd5 (22.
cxd5 $6 b5 23. Ne4 Qxd2 24. Rxd2 Nd3 25. Rxd3 Rxe4 $14) 22... Qd8 $2 (22...
Qxd2 $142 23. Rxd2 Rb8 $18) 23. Bf4 (23. Nf5 $142 $1 {and White has prevailed}
Re6 24. Nxg7 Kxg7 25. Re1 $18) 23... d6 {Controls e5} 24. Ne2 (24. Bg5 $5 f6
25. Bh6 $16) 24... Be6 {White has an active position} 25. Nec3 Rc8 (25... Qc8
26. Rh1 $11) 26. Ne4 Rc6 $2 (26... Bf5 $142 {and Black can hope to survive} 27.
Re1 b5 $14) 27. Bg5 $18 Qc8 28. Qf4 (28. Ndf6+ $142 $5 Kh8 29. g4 $18 (29. Nxe8
$4 {is definitely not advisable} Bxh3+ 30. Kh1 Bf1 $19)) 28... Bxd5 29. Rxd5 (
29. cxd5 Rxc1 30. Rxc1 Qb8 31. Nf6+ Bxf6 32. Bxf6 Nd7 $16) 29... Qe6 $14 30.
Bf6 (30. Rcd1 Nxc4 31. Nxd6 Nxd6 32. Rxd6 Rxd6 33. Rxd6 Qe2 $14) 30... Nd3 {
Black threatens to win material: Nd3xf4. Black forks: f4+c1} (30... Nxc4 31.
Rd4 d5 32. Bxg7 dxe4 $11 (32... Kxg7 $2 33. Ng5 Qf6 34. bxc4 $18)) 31. Rxd3 $14
{[%cal Rd3d6,Re4d6,Rf4d6,Gc6d6,Ge6d6] The pressure on the isolated pawn grows}
Qxe4+ 32. Qxe4 Rxe4 33. Bxg7 Kxg7 {A double rook endgame occured} 34. Rcd1 Re6
35. R1d2 h5 36. h4 Kf6 37. f4 Ke7 38. Kf3 Rc5 39. Rd4 f6 40. b4 {White
threatens to win material: b4xc5} Rc7 41. a4 b6 42. R2d3 Kd7 43. Re3 Rxe3+ 44.
Kxe3 f5 45. Kd3 Kc6 46. Rd5 b5 $4 {Black loses the upper hand} (46... Re7 $142
$11 {would bring relief}) 47. axb5+ $18 axb5 48. Rxb5 Ra7 $4 {causes even
greater problems} (48... Re7 $142 $16) 49. Ra5 $18 Rb7 50. Ra6+ Kc7 (50... Kd7
{praying for a miracle} 51. b5 Rb8 $18) 51. b5 Kd7 (51... d5 {doesn't improve
anything} 52. Rxg6 dxc4+ 53. Kxc4 $18) 52. Kd4 Kc7 (52... Rc7 {doesn't change
the outcome of the game} 53. Ra8 Ke6 54. b6 $18) 53. Kd5 (53. Kd5 Rb8 54. Rc6+
Kb7 55. Rxd6 $18) 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "2.4"]
[White "Nakamura, Mitsuru"]
[Black "Nishimori, Toshiyuki"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1406"]
[BlackElo "1570"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "76"]
[EventDate "2024.03.23"]

{B00: Queen's Fianchetto Defence, Nimzowitsch Defence} 1. e4 e6 2.
Nf3 Nc6 3. Nc3 (3. Bb5 Nge7 4. d4 a6 5. Bd3 Ng6 6. h4 h6 7. h5 Nge7 8. c3 d6 9.
Nh4 Ng8 10. f4 Bd7 11. e5 Qe7 12. a4 O-O-O 13. Qc2 Nb8 14. b4 Qe8 15. b5 a5 16.
b6 cxb6 17. Qb3 dxe5 {Govedarica,R (2445)-Lazic,L (2245) Belgrade 1989 1-0 (39)
}) (3. d4 d6 4. Nc3 Nf6 5. Bb5 Bd7 6. O-O Ne7 7. Bd3 Ng6 8. e5 dxe5 9. dxe5 Ng4
10. Qe2 Bc5 11. h3 Nh6 12. Ne4 Be7 13. Bxh6 gxh6 14. Rad1 c6 15. Bc4 Qa5 16.
Nd6+ Bxd6 17. Rxd6 O-O-O {Feher,A (2344)-Frink,F (2264) Zalakaros 2011 1-0})
3... d5 4. d3 $146 (4. Bb5 a6 5. Bxc6+ bxc6 6. O-O Nf6 7. e5 Nd7 8. d3 Be7 9.
Ne2 c5 10. c3 Nb6 11. Be3 Bd7 12. Qc2 Rb8 13. b3 a5 14. Nd2 Qc8 15. f4 g6 16.
Bf2 Qb7 17. Ng3 h5 18. h3 Rg8 {Rigo,J (2320)-Sibilio,M (2200) Rome 1982 1-0 
(45)}) (4. d4 Nf6 5. Bd3 Bb4 $14) 4... d4 $11 {Black threatens to win material:
d4xc3} 5. Ne2 e5 6. a3 {Prevents intrusion on b4} Nf6 7. h3 {Controls g4} h6 {
Consolidates g5} 8. c3 {Secures b4} Bc5 {White has a cramped position. White's
piece can't move: f1} (8... dxc3 9. Nxc3 Bc5 10. b4 $11) 9. b4 $11 {White
threatens to win material: b4xc5} Bb6 10. Bb2 (10. cxd4 exd4 11. g3 O-O $11)
10... O-O (10... dxc3 11. Nxc3 Qd6 12. Be2 $15) 11. Ng3 (11. c4 a6 $11) 11...
a6 (11... dxc3 12. Bxc3 Qd6 13. Be2 $15) 12. Be2 (12. c4 Nh7 $11) 12... Re8 {
Black has an active position} (12... dxc3 13. Bxc3 Re8 14. O-O $15) 13. O-O (
13. c4 Be6 $11) 13... Ba7 (13... dxc3 14. Bxc3 Nh7 15. Bd2 $15) 14. Qd2 b5 (
14... dxc3 15. Bxc3 Nh7 16. Qb2 $11) 15. Rac1 Bb6 16. Bd1 (16. cxd4 Nxd4 17.
Nxd4 exd4 $14) 16... dxc3 $11 {Black forks: b2+d2} 17. Rxc3 Nd4 18. Nxd4 Bxd4
19. Rc2 (19. Rc1 Bb6 $11) 19... Re7 (19... Bxb2 $142 $5 {must be considered}
20. Rxb2 a5 $11) 20. Bxd4 $14 Qxd4 21. Bf3 Be6 22. Nf5 (22. Rc5 $5 $14) 22...
Bxf5 $11 23. exf5 Rd8 24. Rd1 Rd6 25. Rc6 Rxc6 26. Bxc6 Qd6 {Black threatens
to win material: Qd6xc6} 27. Bf3 Rd7 28. Qe3 Nd5 29. Bxd5 Qxd5 30. Qg3 (30. f6
Qb3 31. Re1 Rd6 $11 (31... Qxd3 $143 32. Qxe5 Rd6 33. Qe8+ Kh7 34. fxg7 Kxg7
35. Qe5+ Kg8 36. Rc1 $14)) 30... Rd6 (30... Qb3 31. Ra1 Qc3 32. Rd1 $17) 31.
Qe3 (31. Re1 $5 $11) 31... e4 $17 32. g4 $2 (32. d4 $142 $5 $17) 32... exd3 $19
33. Qe8+ (33. f6 $142 $19) 33... Kh7 34. Qe3 Qb3 35. f6 (35. Ra1 {desperation}
Qb2 36. Rc1 Qxa3 37. Qd2 $19) 35... Qxd1+ 36. Kg2 (36. Kh2 {doesn't do any good
} d2 37. Qe4+ g6 38. f4 Qe1 39. Qe3 Qxe3 40. Kg2 d1=Q 41. a4 Rd2#) 36... Rxf6
37. Qe4+ (37. g5 {does not save the day} hxg5 38. Qe4+ g6 39. Qd5 Qe2 40. Qc5
d2 41. Qa7 Qf3+ 42. Kh2 d1=R 43. Qxc7 Qxf2#) 37... g6 38. Qe7 (38. g5 {cannot
change what is in store for White} hxg5 39. a4 d2 40. a5 Qe1 41. f3 Qxe4 42.
fxe4 d1=Q 43. e5 Qe2+ 44. Kg3 Rf3+ 45. Kg4 Qg2#) 38... Qf3+ (38... Qf3+ 39. Kg1
Qxf2+ 40. Kh1 Qf1+ 41. Kh2 Rf2+ 42. Kg3 Rg2+ 43. Kh4 Qf2#) 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "2.5"]
[White "Takeuchi, Hiroshi"]
[Black "Shishido, Kenta"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1388"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "103"]
[EventDate "2024.03.23"]

{D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6
3 Bf4} 1. d4 d5 2. Nf3 Nf6 3. Bf4 Nc6 4. e3 Bg4 5. Be2 Bxf3 $146 (5... e6 6.
O-O (6. Nbd2 Bd6 7. Bxd6 (7. Bg3 Qe7 8. O-O O-O 9. Ne5 Bxe2 10. Qxe2 Bxe5 11.
dxe5 Nd7 12. Nf3 Qb4 13. c3 Qg4 14. Qc2 Rfc8 15. Rfd1 Qh5 16. e4 Ncxe5 17. Nxe5
Nxe5 18. exd5 exd5 19. Qb3 Nc4 20. Qxb7 Rab8 21. Qc6 Rxb2 {Laliena Solanes,L 
(2234)-Soriano Ascaso,I (2160) Spain 2010 1-0}) 7... cxd6 8. h3 Bh5 9. O-O O-O
10. c3 Rc8 11. Re1 Ne4 12. Nxe4 dxe4 13. Nd2 Bxe2 14. Qxe2 f5 15. f3 d5 16.
fxe4 fxe4 17. Rf1 Qg5 18. Rxf8+ Rxf8 19. Rf1 Ne7 20. Rxf8+ Kxf8 {Manakov,I 
(2345)-Starostits,I (2468) Schwaebisch Gmuend 2013 1/2-1/2}) 6... Be7 7. Nbd2
O-O 8. c4 Nh5 9. Bg3 Nxg3 10. hxg3 dxc4 11. Nxc4 Rb8 12. Rc1 Qd5 13. b3 Qh5 14.
Re1 Rfd8 15. Nce5 Nxe5 16. Nxe5 Bxe2 17. Qxe2 Qxe2 18. Rxe2 c6 19. Rc4 Rd5 20.
Rec2 {Davidov,R (2280)-Zhunusov,M (2220) Tomsk 2006 1/2-1/2 (60)}) 6. Bxf3 e6
7. Nc3 Bb4 8. O-O Bxc3 9. bxc3 O-O 10. Re1 Re8 11. h3 {Secures g4} e5 12. dxe5
Nxe5 13. Be2 (13. Bxe5 Rxe5 14. Rb1 b6 $14) 13... c5 (13... Ne4 14. Bd3 $11)
14. Rb1 b6 15. Bb5 {White threatens to win material: Bb5xe8} (15. Bg5 Re6 $11)
15... Re6 16. c4 (16. f3 Qe7 $11) 16... dxc4 (16... Nxc4 $5 {is an interesting
alternative} 17. Bxc4 dxc4 $17) 17. Qxd8+ $11 Rxd8 {Black has new doubled
pawns: c4+c5} 18. Rbd1 {White threatens to win material: Rd1xd8} Rf8 (18... Ra8
19. Bxe5 Rxe5 20. Bxc4 $11) 19. Bxe5 (19. f3 c3 $14) 19... Rxe5 $11 20. Rd6 Ne4
{Black threatens to win material: Ne4xd6} 21. Rd7 {White threatens to win
material: Rd7xa7} Nc3 22. Bxc4 b5 {Black threatens to win material: b5xc4} (
22... Re4 23. Bd5 Nxd5 24. Rxd5 $11) 23. Bf1 (23. Rd3 b4 $11) 23... Ra8 (23...
a6 24. Ra1 $11) 24. Ra1 a5 25. g3 (25. a4 b4 $14) 25... c4 {Black wins space} (
25... a4 26. Bg2 Rb8 27. Rd3 $15) 26. a3 (26. a4 Nxa4 27. Bxc4 bxc4 28. Rxa4
Rc5 $14) 26... a4 {Black has a new backward pawn: b5} 27. Re1 (27. Bg2 Rc8 $11)
27... Ne4 (27... Ree8 $142 $5 {is the best option Black has} 28. Bg2 Rad8 $15)
28. Bg2 $14 Rf8 $2 (28... Rb8 $142 $5 $14 {and Black has air to breath}) 29.
Bxe4 $16 Rxe4 30. Red1 (30. Rd5 $5 Rb8 31. Rb1 g6 $18) 30... h5 (30... Rb8 31.
Kg2 $16) 31. R1d5 h4 32. gxh4 (32. Rxb5 $6 hxg3 33. Rd4 Rxd4 34. exd4 Re8 $11)
32... Rxh4 (32... Rb8 33. h5 b4 34. axb4 Rxb4 35. Ra5 $16) 33. Kg2 (33. Rxb5
Rxh3 34. Rc5 Ra8 $16) 33... b4 (33... Rb8 34. Rd8+ Rxd8 35. Rxd8+ Kh7 36. Rd5
$14) 34. axb4 c3 35. Rb7 (35. f4 $5 Re8 36. Rd8 Kf8 37. Rxe8+ Kxe8 $16) 35...
Ra8 36. Rd1 (36. Rdd7 $5 a3 37. Ra7 (37. Rxf7 $143 a2 38. Rxg7+ Kh8 $17) 37...
Rxa7 38. Rxa7 Rxb4 39. Rxa3 $16) 36... a3 $11 {Is this a dangerous pawn?} 37.
f4 a2 38. Ra1 Ra4 (38... Re8 39. Rxa2 Rxe3 40. Ra8+ Kh7 41. Rxf7 Rhxh3 42. b5
$11) 39. Rb5 (39. Rc7 g5 $14) 39... f6 (39... Rh6 40. Ra5 Rxb4 41. R1xa2 $11)
40. Kg3 {White threatens to win material: Kg3xh4} Kf7 $4 {causes further
problems for White} (40... Rh6 $142 $16) 41. Kxh4 $18 Ke6 (41... Kg6 {a
fruitless try to alter the course of the game} 42. Kg4 $18) 42. Kg4 g6 (42...
Kf7 {is no salvation} 43. Ra5 Rxb4 44. R5xa2 $18) 43. e4 {[%cal Yf4f5] White
prepares f5} Kd6 (43... Kf7 {is not much help} 44. Kf3 $18) 44. f5 gxf5+ 45.
Kxf5 Kc6 46. Rc5+ Kb6 47. Rxc3 Kb5 48. h4 Kxb4 49. Rc8 Ka3 50. Rb8 Rc4 (50...
Rb4 {hardly improves anything} 51. Rxa2+ $1 {Deflection: b4} Kxa2 52. Rxb4 Ka3
53. Rb3+ Ka4 54. h5 Ka5 55. h6 Ka4 56. h7 Ka5 57. h8=Q Ka4 58. Qa8#) 51. Ra8+ (
51. Rb3+ Ka4 52. Rxa2#) 51... Kb2 $18 52. R1xa2+ (52. R1xa2+ Kc1 53. R8a5 $18)
1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "2.6"]
[White "Furuse, Mizuki"]
[Black "Miyatani, Ryohei"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "1157"]
[BlackElo "1313"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "66"]
[EventDate "2024.03.23"]

{A06: R騁i Opening:1 Nf3 d5} 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. O-O
c5 5. b3 Nc6 6. Bb2 Be7 (6... Bd6 7. d4 O-O 8. c4 dxc4 9. bxc4 Qb6 10. Qb3 cxd4
11. Qxb6 axb6 12. Nxd4 Be5 13. e3 Rd8 14. Rd1 Ne8 15. Na3 Na5 16. Bc3 Bd7 17.
Rab1 Bd6 18. Nab5 Be7 19. Bxa5 Rxa5 20. Bxb7 Rxa2 21. Nc3 {Hausrath,D (2526)
-Ernst,S (2554) Dieren 2014 1/2-1/2}) 7. d3 O-O 8. Nbd2 b5 $146 (8... b6 9. e4
Bb7 10. Qe2 Rc8 (10... Nb4 11. Ne1 Qc7 12. f4 Rad8 13. a3 Nc6 14. e5 Nd7 15.
Nef3 Rfe8 16. Bh3 Nf8 17. Rae1 b5 18. Bg2 c4 19. Kh1 c3 20. Bxc3 Bxa3 21. Nb1
Be7 22. d4 b4 23. Bd2 Nb8 24. Qd1 Rc8 25. c3 {Siepelt,H (2328)-Weiss,C (2376)
Bayern 2011 0-1 (55)}) 11. a4 a6 12. e5 Ne8 13. Ne1 b5 14. f4 c4 15. dxc4 bxc4
16. bxc4 Na5 17. Rb1 Nxc4 18. Bd4 Nxd2 19. Qxd2 Bc6 20. Bh3 Bxa4 21. f5 Rc6 22.
Rb7 Nc7 23. f6 {Knudsen,P (2325)-Kaspersen,M (2215) Copenhagen 1986 1-0}) 9. c4
bxc4 10. dxc4 Bb7 (10... Qc7 11. Re1 $11) 11. cxd5 exd5 {Black has new hanging
pawns: c5+d5. Black has an active position} 12. Rc1 Qa5 {Black threatens to
win material: Qa5xa2} 13. Bc3 {White threatens to win material: Bc3xa5} Qa3 {
White has a cramped position} (13... Qxa2 $4 {Black will not be able to digest
the pawn} 14. Ra1 Nb4 15. Rxa2 Nxa2 16. Bb2 $18) 14. Ne5 Nb4 (14... Qxa2 $4 {
Taking that pawn is naive} 15. Ra1 Qxa1 16. Qxa1 $18) 15. Bxb4 Qxb4 {Black has
the pair of bishops} 16. Nd3 {White threatens to win material: Nd3xb4} Qa5 17.
a4 (17. Qc2 $5 {is an interesting idea} Bd6 18. Rfd1 $11) 17... Rac8 $17 18.
Nf4 Rfd8 19. Qc2 Ba6 {[%cal Yc5c4] Black prepares the advance c4} 20. Rfe1 (20.
Nf3 c4 $17) 20... g5 21. Nh3 (21. Nd3 c4 22. Ne5 cxb3 $17) 21... h6 22. Rcd1 (
22. Red1 $5 $17) 22... c4 $19 23. bxc4 dxc4 24. Ne4 (24. Nf1 c3 $19) 24... Nd5
{[%cal Yc4c3] Black plans c3} 25. e3 $2 (25. Nd2 Bb4 26. Ne4 Bxe1 27. Rxd5 Qb6
28. Nexg5 hxg5 29. Rxg5+ Kf8 $19) 25... c3 26. Rd4 (26. Nexg5 hxg5 27. Nxg5 $19
) 26... Nb4 27. Rxd8+ (27. Qd1 {there is nothing else anyway} Nd3 28. Nxc3 Rxd4
29. Rf1 $19) 27... Qxd8 (27... Rxd8 $6 28. Qxc3 Rc8 29. Qd2 $17) 28. Qb1 (28.
Qd1 {there is nothing better in the position} Qxd1 29. Rxd1 $19) 28... c2 29.
Qa1 Nd3 30. Rc1 Nxc1 31. Qxc1 (31. Kh1 {doesn't get the bull off the ice} Qd1+
32. Ng1 Ne2 33. Nxg5 Qxa1 34. N5f3 c1=Q 35. Bf1 Qxf1 36. e4 Qxg1+ 37. Nxg1
Qxg1#) 31... Qd1+ 32. Qxd1 (32. Bf1 {cannot undo what has already been done}
Bxf1 33. Nf6+ Bxf6 34. f3 Bxh3+ 35. Kf2 Qxc1 36. g4 Qf1+ 37. Kg3 Qg2#) 32...
cxd1=Q+ 33. Bf1 Qxf1# 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "2.7"]
[White "Ito, Katsuhide"]
[Black "Kuramoto, koutarou"]
[Result "1-0"]
[ECO "C91"]
[WhiteElo "1199"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "81"]
[EventDate "2024.03.23"]

{C91: Closed Ruy Lopez: 7...d6 8 c3 0-0 9 d4} 1. e4 e5 2. Nf3 Nc6
3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Na5 (9...
Re8) 10. Bc2 (10. dxe5 dxe5 11. Nxe5 Nxb3 12. Qxb3 Bb7 13. Nd2 Bc5 14. Qc2 Re8
15. Nd3 Nxe4 16. Nxc5 Nxc5 17. Rxe8+ Qxe8 18. Nf1 Qe6 19. Be3 Ne4 20. f3 Nd6
21. Bf2 h6 22. b3 Nf5 23. Re1 Qg6 24. Ng3 Nh4 {Nolte,R (2489)-Friedel,J (2498)
Beijing 2008 1-0 (62)}) 10... exd4 $146 (10... c5 11. Nbd2 Re8 12. Nf1 Nc6 13.
h3 Bb7 14. d5 Nb8 15. Ng3 g6 {1/2-1/2 (15) Budimir,B (2293)-Savic,M (2300)
Dvorovi 2005}) 11. cxd4 Re8 12. e5 dxe5 13. dxe5 ({Instead of} 13. Nxe5 Bb7 $15
) 13... Qxd1 14. Rxd1 (14. Bxd1 $6 Nd7 $11) 14... Ng4 15. Be4 Bb7 16. Bxb7 Nxb7
17. h3 Nh6 18. Bxh6 gxh6 19. Nc3 Rad8 20. Nd5 Rc8 21. Re1 c6 22. Nf6+ (22. Ne3
Rcd8 $16) 22... Bxf6 $14 23. exf6 Re6 (23... Nd6 $5 $14) 24. Rxe6 $16 fxe6 25.
Ne5 c5 26. Rd1 Rd8 27. Re1 (27. Rxd8+ $142 Nxd8 28. f4 $16) 27... Rd2 $4 (27...
Kf8 $142 $14 {saving the game}) 28. Re3 $18 Rd5 (28... Kf8 29. Rg3 Nd6 30. Nd7+
Ke8 31. Rg7 $18) 29. Rg3+ Kf8 30. f4 Nd6 31. Rg7 Rxe5 (31... Nc4 {does not
improve anything} 32. Nd7+ Rxd7 33. Rxd7 Nxb2 34. g4 $18) 32. fxe5 Nf7 (32...
Nc4 {does not solve anything} 33. Kf2 $18) 33. Rxh7 Kg8 (33... a5 {doesn't
change anything anymore} 34. Kf2 a4 35. Ke3 Nxe5 36. Rxh6 $18) 34. Rg7+ Kf8 35.
Kf2 Nxe5 36. Ra7 Nd3+ 37. Ke3 Nxb2 (37... Nb4 {does not win a prize} 38. a3
Nd5+ 39. Ke4 Nxf6+ 40. Ke5 $18) 38. Ke4 c4 (38... b4 {does not help much} 39.
Rc7 Nc4 40. Rxc5 $18) 39. Ke5 Nd3+ 40. Kxe6 Nc5+ (40... Nf4+ {what else?} 41.
Ke5 Nxg2 $18) 41. Kf5 (41. Kf5 Nd3 42. g3 c3 43. Rc7 c2 44. Rxc2 Kf7 45. Rc7+
Kf8 46. Ke6 Kg8 47. f7+ Kg7 48. Rc8 Nc5+ 49. Rxc5 a5 50. Ke7 b4 51. f8=Q+ Kh7
52. Rc6 b3 53. Rxh6#) 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "2.8"]
[White "Ono, Yukiko"]
[Black "Shimomura, Kensei"]
[Result "0-1"]
[ECO "C50"]
[BlackElo "1199"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "68"]
[EventDate "2024.03.23"]

{[%mdl 8256] C50: Hungarian Defence and Giuoco Pianissimo} 1. e4 e5 2. Nc3 Nf6
3. Bc4 Bc5 4. Nf3 Nc6 5. d3 Ng4 $146 {Black threatens to win material: Ng4xf2}
(5... a6 6. Be3 (6. O-O d6 7. Bg5 (7. h3 Na5 8. a3 Nxc4 9. dxc4 Be6 10. Qd3 Nh5
11. Nd5 c6 12. Nc3 b5 13. cxb5 axb5 14. Rd1 Bc4 15. Qd2 Nf4 16. b3 Be6 17. Ne2
Nxe2+ 18. Qxe2 Qe7 19. a4 O-O 20. Be3 Bxe3 21. Qxe3 bxa4 {Luther,T (2425)
-Borkowski,F (2450) Naleczow 1987 1/2-1/2 (55)}) 7... h6 8. Bxf6 Qxf6 9. Nd5
Qd8 10. c3 Ba7 11. d4 Bg4 12. Ne3 Bxf3 13. Qxf3 O-O 14. d5 {1/2-1/2 (14)
Bratanov,Z (2398)-Nikolov,S (2407) Velingrad 2004}) 6... d6 (6... Qe7 7. O-O
Bxe3 8. fxe3 Na5 9. Nd5 Nxd5 10. Bxd5 O-O 11. Qd2 Nc6 12. Qc3 Re8 13. d4 exd4
14. exd4 d6 15. Ng5 Qxg5 16. Bxf7+ Kf8 17. d5 Qe5 18. Bxe8+ Kxe8 19. dxc6 Qxc3
20. bxc3 bxc6 21. Rab1 {Sugar,K (2220)-Morvay,M (2270) Budapest 1986 1/2-1/2 
(60)}) 7. Qd2 (7. h3 Bxe3 8. fxe3 Na5 9. Bb3 O-O 10. O-O Nxb3 11. axb3 d5 12.
Nxe5 dxe4 13. d4 Nd5 14. Rxf7 Rxf7 15. Nxf7 Nxc3 16. Nxd8 Nxd1 17. Rxd1 a5 18.
Rf1 a4 19. bxa4 Rxa4 20. Rf7 Rc4 21. c3 b5 {Short,N (2686)-Stefanova,A (2550)
West Bromwich 2003 1-0 (53)}) 7... Bg4 8. Bxc5 dxc5 9. Ng5 Bh5 10. f3 h6 11.
Nh3 Nd4 12. Qf2 g5 13. Nd1 b5 14. Bb3 Qd6 15. Ne3 Bg6 16. O-O O-O 17. Kh1 Rad8
18. Qd2 Kh7 19. Rad1 Qb6 20. Nf2 {Mason,J-Bird,H London 1899 1-0 (64)}) (5...
h6 $5 $11) 6. O-O $14 O-O 7. Bg5 {White threatens to win material: Bg5xd8} Nf6
8. Qd2 h6 {Black threatens to win material: h6xg5} 9. Bh4 (9. Bxf6 Qxf6 10. Nd5
$14) 9... d6 $2 (9... Be7 10. Bg3 d6 11. h3 $11) 10. a4 (10. Nd5 Kh7 $16) 10...
a5 (10... Bb4 $142 $5 $11 {has some apparent merit}) 11. Nd5 $16 Ne7 $4 {
leads to further unpleasantness} (11... Kh7 $142 $16) 12. c3 {Loses material} (
12. Nxf6+ $142 {nails it down} Kh8 13. Nd5 Re8 $18) 12... Be6 $4 (12... Nexd5
$142 {the rescuing straw} 13. Bxd5 c6 $11) 13. d4 (13. Nxf6+ $142 {and White
wins} Kh8 14. Nd5 Bxd5 15. Bxd5 $18) 13... exd4 (13... Nfxd5 $4 14. exd5 (14.
Bxd5 $6 Bxd5 15. exd5 exd4 $11) 14... Bg4 15. dxc5 Bxf3 16. cxd6 cxd6 17. Bxe7
(17. gxf3 $6 g5 $18) 17... Qxe7 18. gxf3 $18) 14. cxd4 $4 {simply marches past
the door to victory} (14. Bxf6 $142 gxf6 15. Nxf6+ Kg7 16. Nh5+ Kh7 17. Qd3
Bxc4 18. Qxc4 $18) 14... Ba7 $4 {gives away a clear win} (14... Nexd5 $142 {
had to be tried to avoid defeat} 15. exd5 Bb4 $11) 15. Nxf6+ $18 gxf6 16. d5
Bg4 (16... Bc8 {doesn't change the outcome of the game} 17. Bxf6 Kh7 18. Bd3
$18) 17. Bxf6 Kh7 18. e5 Rg8 (18... Qd7 19. Ng5+ $1 {Decoy: g5} Kg6 20. Bd3+
Nf5 21. h3 dxe5 22. hxg4 Kxf6 23. Bxf5 $18 (23. gxf5 $6 hxg5 24. Qe2 Bd4 $15))
19. Bd3+ Rg6 20. Bxg6+ (20. Ng5+ $142 $5 {keeps an even firmer grip} Kg8 21.
Bxg6 fxg6 22. exd6 cxd6 $18) 20... fxg6 21. Ng5+ $1 {Decoy: g5} hxg5 22. Qxg5
Qd7 (22... Qc8 {cannot change destiny} 23. Bxe7 Qf5 24. Rac1 Qxg5 25. Bxg5 $18)
23. Bxe7 (23. e6 $142 {and White has it in the bag} Qe8 24. Qxg4 Qf8 25. Qh4+
Qh6 26. Bxe7 Bc5 $18) 23... Re8 (23... dxe5 {is not the saving move} 24. Rac1
c6 25. h3 $18) 24. e6 (24. exd6 $5 {might be the shorter path} cxd6 25. Qh4+
Bh5 $18) 24... Qxe7 25. Qxe7+ (25. Qxg4 $142 {and White takes home the point}
Bc5 26. Rae1 $18) 25... Rxe7 $15 26. Rfe1 (26. Rac1 Bc5 $15) 26... Bh5 (26...
c6 $5 27. dxc6 bxc6 $17) 27. h3 {Covers g4} Bd4 $4 {Black is ruining his
position} (27... g5 $142 $11 {is the best chance}) 28. g4 $18 Be5 (28... Bxb2
29. Rab1 (29. gxh5 $6 {is no comparison} Bxa1 30. Rxa1 gxh5 $11) 29... Bc3 30.
Re4 (30. gxh5 $6 {is the weaker alternative} Bxe1 31. Rxe1 c6 $14) 30... Bxg4
31. hxg4 $18) 29. gxh5 gxh5 (29... c6 {doesn't get the cat off the tree} 30.
hxg6+ Kxg6 31. Rad1 $18) 30. f4 $1 {a devastating blow} Bxf4 31. Kf1 (31. Kf2
$5 {and White can already relax} Be5 32. Ke3 c6 $18) 31... Be5 32. Rxe5 $1 {
Decoy: e5} dxe5 33. Re1 h4 $2 (33... Kg6 34. Ke2 Kf6 35. Rf1+ Kg7 $18) 34. Rxe5
$18 Kg6 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "3.1"]
[White "Yamaguchi, Tosei"]
[Black "Shinoda, Taro"]
[Result "1-0"]
[ECO "A61"]
[WhiteElo "1940"]
[BlackElo "1911"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "63"]
[EventDate "2024.03.23"]

{A61: Modern Benoni: Nf3 without early e4} 1. d4 Nf6 2. c4 e6 3.
Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 Nbd7 8. e4 Bg7 9. Be2 a6 10. a4
Rb8 11. O-O O-O 12. h3 Ne8 13. Qc2 $146 (13. Re1 Nc7 14. a5 b5 15. axb6 Nxb6
16. Nb3 Bd7 17. Bf4 Nc8 18. Bxa6 Nxa6 19. Rxa6 Rb6 20. Ra3 Re8 21. e5 c4 22. e6
Rxb3 23. Bg5 Qc7 24. exd7 Rxe1+ 25. Qxe1 Qxd7 26. Ra8 h6 27. Qe7 Qf5 {Navara,D
(2736)-Kristjansson,S (2482) Reykjavik 2015 1-0}) (13. Nc4 Qh4 14. a5 Ne5 15.
Nxe5 Bxe5 16. f4 Bd4+ 17. Kh2 Ng7 18. Ra4 f5 19. Rxd4 cxd4 20. Qxd4 fxe4 21.
Nxe4 Nf5 22. Qc3 Bd7 23. g3 Qe7 24. Bd3 Rbc8 25. Qe1 Bb5 26. Bxb5 Rc2+ 27. Nf2
Qxe1 {Jorgensen,M (2230)-Aagaard,J (2542) Copenhagen 2010 0-1 (35)}) 13... Nc7
{Black has a cramped position. Black's piece can't move: c8} 14. Nc4 {White
threatens to win material: Nc4xd6} Ne5 15. Na3 (15. Ne3 $142 $5 $16) 15... f5
$11 {Black has a cramped position} 16. f4 {White threatens to win material:
f4xe5} Nf7 {Black has a cramped position} 17. Nc4 b5 (17... fxe4 18. Qxe4 Bd4+
19. Kh2 $15) 18. axb5 (18. Na5 b4 19. Nc6 bxc3 20. bxc3 Qe8 21. Nxb8 Qxe4 22.
Qxe4 fxe4 $14) 18... Nxb5 $11 19. Be3 (19. Nxb5 axb5 20. Na5 Bd7 $11) 19...
Nxc3 (19... Nd4 $5 {is worth consideration} 20. Qd1 fxe4 21. Nxe4 Nxe2+ 22.
Qxe2 Re8 $17) 20. bxc3 $11 fxe4 {Black has new passed pawns: a6+e4} 21. Na5 Bd7
(21... Qh4 $5 22. Nc6 Ra8 $11) 22. Nc6 $16 Bxc6 23. dxc6 {White has the pair
of bishops} Rb6 (23... Qf6 $5 $14) 24. Rxa6 $16 (24. Qxe4 $6 Re8 25. Qd3 d5 $14
) 24... Rxa6 25. Bxa6 Qb6 26. Bb7 Re8 27. Qa4 Kf8 (27... Qc7 $5 $16) 28. f5 $18
g5 $2 (28... Qc7 $142 29. Qc4 Be5 $18) 29. f6 Bh8 30. Qc4 (30. Qa6 $142 Qc7 31.
c4 $18) 30... Nd8 $2 (30... h6 $142 $18) 31. Bxg5 Nxb7 (31... Nf7 {a last
effort to resist the inevitable} 32. Be3 h5 $18) 32. Bh6+ (32. Bh6+ Bg7 33.
Bxg7#) 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "3.2"]
[White "Nishimori, Toshiyuki"]
[Black "Yoshii, Yukihiko"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1570"]
[BlackElo "1644"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "115"]
[EventDate "2024.03.23"]

{B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} 1.
e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nc6 5. Bf4 (5. Ne5 e6 6. c3 Nxe5 7. dxe5 Ne7
8. Nd2 Nc6 9. Nf3 Qc7 10. Bf4 Be7 11. Bg3 Bd7 12. Bd3 g5 13. Qe2 h5 14. h4 g4
15. Nd2 a6 16. a4 Bf8 17. O-O Bg7 18. Rfe1 Qb6 19. b4 a5 {Carlsen,M (2714)
-Dreev,A (2607) Moscow 2007 1/2-1/2 (69)}) 5... Bf5 6. Nc3 $146 (6. c3 e6 7.
Qb3 (7. Bd3 Bxd3 8. Qxd3 Bd6 9. Bxd6 Qxd6 10. O-O Nf6 11. Nbd2 O-O 12. Rae1 Qc7
{1/2-1/2 (12) Sveshnikov,E (2514)-Horvath,J (2535) Presolana 2011}) 7... Qd7 8.
Ne5 Nxe5 9. Bxe5 Ne7 10. Nd2 Nc6 11. Bg3 (11. Nf3 Be4 12. Nd2 Bg6 13. Nf3 Be4 {
1/2-1/2 (13) Sveshnikov,E (2504)-Riazantsev,A (2629) Cheliabinsk 2007}) 11...
Bd6 12. Bxd6 Qxd6 13. Be2 O-O 14. O-O Qc7 15. Rfe1 Na5 16. Qd1 b5 17. Nb3 Nc4
18. Bxc4 Qxc4 19. Nc5 b4 20. b3 Qb5 {Sveshnikov,E (2487)-Macieja,B (2639)
Warsaw 2010 1/2-1/2 (67)}) 6... a6 {Covers b5} 7. a3 {Prevents intrusion on b4}
(7. Bd3 Bxd3 8. cxd3 e6 $14) 7... h6 {Secures g5} 8. Bd3 Bxd3 9. Qxd3 (9. cxd3
e6 $11) 9... Nf6 10. O-O {Black has a cramped position. Black's piece can't
move: f8} e6 {Black should quickly conclude development.} 11. Rfe1 Be7 12. Rad1
O-O {White has a very active position} 13. Ne5 Rc8 14. Ne2 {White has an
active position} (14. h3 Qb6 15. Na4 Qa5 $11) 14... Ne4 15. c3 {Consolidates b4
} Bd6 16. Ng3 Nf6 17. h3 {Consolidates g4} Qc7 18. Re2 Rfe8 19. Rde1 Re7 $2 (
19... Na5 $142 $5 $11 {would keep Black in the game}) 20. Nxc6 $16 Bxf4 21.
Nxe7+ Qxe7 22. Qf3 Bb8 23. Nf5 {White threatens to win material: Nf5xe7} (23.
Nh5 $142 $16) 23... Qc7 $11 {Black has a mate threat} 24. Ng3 Ne4 (24... Qe7
25. Nh5 Ne4 $16) 25. Re3 (25. Nxe4 $4 {mating quickly in 2} Qh2+ 26. Kf1 Qh1#)
25... Nd2 26. Qd1 Nc4 27. R3e2 Qb6 28. Qc1 Nd6 29. Re3 (29. Qe3 $142 $5 $16)
29... Nc4 $11 {Black threatens to win material: Nc4xe3. Black forks: e3+b2} 30.
R3e2 Bxg3 (30... Nd6 31. Qc2 Nc4 $16) 31. fxg3 $16 Nd6 32. g4 Ne4 33. Re3 Qd6
34. Qd1 b5 35. Rf1 Rc7 36. Rff3 Ng5 37. Rf1 Ne4 38. Qd3 f6 39. Rxe4 dxe4 40.
Qxe4 Qc6 41. Re1 Kf7 42. Kf2 g6 (42... Qxe4 43. Rxe4 Ke7 44. Ke3 $16) 43. Qxc6
(43. Qe3 $5 g5 44. h4 $18) 43... Rxc6 $16 44. Kf3 a5 45. Ke4 Rd6 46. Rd1 Rd5
47. b3 f5+ 48. gxf5 gxf5+ 49. Ke3 e5 50. Rd2 f4+ $4 {the position is going
down the drain} (50... Kf6 $142 $16) 51. Ke4 $18 Ke6 52. c4 bxc4 53. bxc4 Rd8
54. d5+ Kd6 55. Rc2 Re8 (55... Kc5 {hardly improves anything} 56. Kxe5 f3 57.
gxf3 Re8+ 58. Kf4 $18) 56. c5+ Kd7 (56... Kc7 $18 {praying for a miracle}) 57.
Rb2 Kc7 (57... Ke7 {is one last hope} 58. Rb7+ Kf6 59. Rb6+ Kf7 $18) 58. Rb6 (
58. Rb6 Kc8 59. d6 $18) 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "3.3"]
[White "Kawamura, Takuto"]
[Black "Sugimoto, Koichi"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1601"]
[BlackElo "1864"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "94"]
[EventDate "2024.03.23"]

{[%mdl 64] D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4} 1. d4 d5 2.
Nf3 Nf6 3. c4 c6 4. g3 Bf5 5. Bg2 e6 6. O-O Bd6 7. Nbd2 $146 (7. Nc3 Nbd7 (7...
O-O 8. Qb3 b6 9. Nh4 Bg4 10. e4 dxe4 11. Nxe4 Nxe4 12. Bxe4 Be7 13. Nf3 f5 14.
Ne5 Qxd4 15. Nxc6 Nxc6 16. Bxc6 Rad8 17. Be3 Qd6 18. Bg2 Kh8 19. Rac1 Rc8 20.
f3 Bh5 21. Rfd1 Qc6 22. Rd3 {Schmuecker,M (2251)-Westermann,J (2158) Solingen
2014 0-1 (34)}) (7... h6 8. Nd2 O-O 9. e4 dxe4 10. Ndxe4 Nxe4 11. Nxe4 Be7 12.
Bf4 Na6 13. c5 Bxe4 14. Bxe4 Qd7 15. Be5 Rfd8 16. Qb3 Qc8 17. Rad1 Nc7 18. h4
Nd5 19. Bb1 f6 20. Bf4 Nxf4 21. gxf4 Rd5 22. Rfe1 {Qendro,L (2235)-Sisniega,M 
(2455) Luzern 1982 0-1 (40)}) 8. Nh4 (8. Qb3 Qb6 9. Bf4 Bxf4 10. gxf4 Qxb3 11.
axb3 Ne4 12. Ra5 Nxc3 13. bxc3 Be4 14. Rfa1 a6 15. Nd2 Bxg2 16. Kxg2 Rc8 17. f3
Nb6 18. e4 f6 19. c5 Na8 20. f5 exf5 21. exd5 cxd5 22. c4 Rd8 {Brito Garcia,A 
(2360)-Lezcano Montalvo,P (2250) Spain 1989 1-0 (44)}) 8... Bg4 9. h3 Bh5 10.
cxd5 Nxd5 11. Nf3 O-O 12. e4 Nxc3 13. bxc3 c5 14. Be3 Qc7 15. Qb3 Bxf3 16. Bxf3
Bxg3 17. e5 Bh4 18. Qxb7 Qxb7 19. Bxb7 Rab8 20. Bc6 cxd4 21. Bxd4 Nb6 {
Romanishin,O (2585)-Ekstroem,R (2405) URS 1981 1-0 (53)}) (7. Nc3 Nbd7 $16)
7... O-O 8. b3 (8. Nh4 Nbd7 $11) 8... h6 {Controls g5} 9. Bb2 Ne4 10. Ne5 Nxd2
11. Qxd2 Nd7 12. Rae1 Qc7 (12... a5 13. Nd3 $11) 13. Nxd7 Qxd7 14. f3 {
Controls e4+g4} a5 15. e4 Bg6 16. c5 {White threatens to win material: c5xd6}
Bc7 17. a4 b6 18. Ba3 Rfb8 19. Re3 bxc5 (19... b5 20. axb5 Rxb5 21. Qd1 $15)
20. Bxc5 $11 dxe4 21. fxe4 e5 22. d5 {White gets more space} Bb6 {Black
threatens to win material: Bb6xc5} 23. Rc3 Bxc5+ 24. Rxc5 {White forks: a5+c6}
Qa7 {Black threatens to win material: Qa7xc5} 25. Qc3 $2 (25. Rfc1 $142 {
would allow White to play on} cxd5 26. Qxd5 $15) 25... Rxb3 $1 $19 {Deflection:
c5.} 26. Qxb3 Qxc5+ 27. Kh1 cxd5 28. exd5 (28. Qxd5 Rc8 $19) 28... Rd8 29. Qb5
Qxb5 (29... Qb4 30. h4 $19) 30. axb5 $17 Bd3 31. Ra1 e4 32. Rxa5 Rxd5 33. Ra8+
$2 (33. Kg1 $142 $17) 33... Kh7 $19 34. b6 Rb5 35. Kg1 (35. h4 Rxb6 36. Re8 f5
$19) 35... Rxb6 36. Re8 Rb1+ 37. Kf2 Rb2+ 38. Kg1 Re2 39. Rd8 (39. Rc8 {
doesn't get the bull off the ice} Kg6 $19) 39... Rc2 (39... e3 {might be the
shorter path} 40. Kf1 (40. Rxd3 $4 {too greedy} Re1+ 41. Bf1 e2 $19) 40... Bb5
41. Be4+ g6 42. Bd3 $19) 40. Rd7 (40. Re8 {is no salvation} f5 $19) 40... Kg6 (
40... e3 $142 {and Black can already relax} 41. Bf3 (41. Rxd3 $4 {capturing
the bishop is not a good idea} Rc1+ 42. Bf1 e2 $19) 41... Rc1+ 42. Kg2 Bf1+ 43.
Kg1 $19) 41. Rd4 Kf5 42. Rd5+ Ke6 43. Rd8 Rc7 (43... Rc1+ {seems even better}
44. Kf2 $19) 44. Kf2 Re7 (44... f5 $142 $5 {makes it even easier for Black} 45.
Re8+ Kd7 46. Re5 $19) 45. Ke3 (45. g4 Ke5 46. Ke3 h5 $19) 45... Ke5 46. Rd4 $2
(46. Rf8 $19) 46... f5 47. h4 (47. Bf3 {does not win a prize} g5 (47... exf3 $6
48. Rxd3 f2 49. Kxf2 $15) 48. Rd8 f4+ (48... exf3 $6 {is the less attractive
alternative} 49. Rxd3 g4 50. Kf2 $19) 49. Kf2 Ra7 (49... exf3 $6 {is no
comparison} 50. Rxd3 g4 51. Ra3 $19) 50. gxf4+ gxf4 51. Re8+ Kd4 52. Rd8+ Kc5
53. Rc8+ Kd6 54. Rd8+ Kc7 $19) 47... g5 (47... g5 48. Rd8 gxh4 $19) 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "3.4"]
[White "Miyatani, Ryohei"]
[Black "Aoki, Yasuhiro"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1313"]
[BlackElo "1598"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "64"]
[EventDate "2024.03.23"]

{[%mdl 8256] B07: Pirc Defence: Miscellaneous Systems} 1. e4 d6 2. d4 Nf6 3.
Bd3 e5 4. c3 d5 5. dxe5 Nxe4 6. Bxe4 dxe4 7. Qxd8+ Kxd8 8. Bf4 (8. Bg5+ Be7 9.
Bxe7+ Kxe7 10. Nd2 Nc6 11. Nxe4 Nxe5 12. O-O-O Bf5 13. Nf3 Nxf3 14. gxf3 Rhd8
15. b3 Rxd1+ 16. Rxd1 b6 17. Ng3 Be6 18. Ne2 a5 19. Nd4 a4 20. Kb2 Bd7 21. b4
a3+ 22. Kc1 c5 {Ruiz Marana,A (2210)-Guerra Bastida,D (2397) Don Benito 2012
0-1 (73)}) 8... Nc6 (8... Nd7 9. Ne2 Nc5 10. Nc1 a5 11. O-O Ke8 12. Nd2 Be6 13.
Be3 Rd8 14. Ncb3 Nxb3 15. Nxb3 a4 16. Nd4 Bc4 17. Rfe1 Bd3 18. b4 h6 19. Rad1
g6 20. a3 c5 21. Ne2 Bxe2 22. Rxd8+ Kxd8 23. Rxe2 {Sulskis,S (2562)-Moser,E 
(2383) Liverpool 2008 1/2-1/2 (99)}) 9. Nd2 Bf5 10. O-O-O {Black king safety
dropped} Kc8 $146 {Black king safety improved} (10... Ke7 11. Re1 Ke6 12. Nxe4
Bxe4 13. Rxe4 Kf5 14. f3 g5 15. g4+ Kg6 16. Bg3 Bg7 17. h4 h5 18. Nh3 Rae8 19.
e6 fxe6 20. Nxg5 e5 21. Kc2 Rhf8 22. Kd1 Bh6 23. Ke2 hxg4 24. Rxg4 Kh5 25. Be1
{Drljevic,L (2188)-Marin,I (2261) Bucharest 2004 1-0 (44)}) (10... Ke8 11. Ne2
$11) 11. Ne2 Bc5 {Black threatens to win material: Bc5xf2} 12. Ng3 {White
threatens to win material: Ng3xf5. White forks: e4+f5} Bg4 {Black threatens to
win material: Bg4xd1} 13. Rdf1 ({Worse is} 13. Ngxe4 Bxd1 14. Rxd1 Be7 $15)
13... Re8 (13... e3 14. fxe3 Rd8 15. Nge4 $14) 14. h3 {White threatens to win
material: h3xg4} Be6 {Black threatens to win material: Be6xa2} 15. Ngxe4 Bb6
16. Re1 h6 {Consolidates g5} 17. Bg3 a6 (17... Bxa2 $2 {doesn't solve anything}
18. b3 Nxe5 19. Bxe5 Rxe5 20. Kb2 $18) 18. f4 Kb8 19. Rhf1 Bf5 (19... a5 20.
Kb1 $16) 20. Bh4 Ka7 21. g4 Be6 22. Bf2 Rad8 (22... Bxa2 $2 {is a blank shot}
23. Bxb6+ Kxb6 24. b3 $18) 23. Ng3 {[%cal Yf4f5] White intends f5} (23. Bxb6+
Kxb6 24. Re3 a5 $16 (24... Bxa2 $2 {doesn't work} 25. b3 $18)) 23... Bxf2 {
Black forks: e1+g3} (23... Rd3 24. Nf3 $14) 24. Rxf2 $16 Rd3 25. Nh5 g6 26. Nf6
Red8 27. f5 (27. Kc2 $5 $16) 27... gxf5 $11 (27... Bxa2 $2 {is worthless
because of} 28. e6 gxf5 29. e7 Nxe7 30. Rxe7 $18) 28. gxf5 Bxf5 29. Nb3 (29.
Rxf5 $142 $5 {is the best option White has} Rxd2 30. Ng4 $11) 29... Bg6 $17 30.
h4 h5 (30... Nxe5 31. Rff1 Nf3 32. Re7 $17) 31. Nc5 (31. e6 $142 $5 {deserves
consideration} fxe6 32. Nc5 $15) 31... Nxe5 $1 $17 {Deflection: d1.} 32. Nxh5
$4 {White has lost his nerve... understandable when you consider his position}
(32. Rxe5 Rd1# {Mate attack Deflection}) 32... R3d5 $19 (32... R3d5 33. Rfe2
Nf3 $19 (33... Rxc5 $6 {is much worse} 34. Rxe5 Rc4 35. Rh1 $17) (33... Bxh5
$143 34. Rxe5 Bg6 35. Rxd5 Rxd5 36. Nb3 $11)) (32... Bxh5 $6 {is clearly weaker
} 33. Rxe5 Rd1+ 34. Kc2 Bg6+ 35. Kb3 $11) 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "3.5"]
[White "Hasegawa, Emi"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "D08"]
[WhiteElo "1417"]
[BlackElo "1199"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "67"]
[EventDate "2024.03.23"]

{D08: Albin Counter Gambit} 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6
5. Bf4 Bb4+ $146 (5... Nge7 6. Nbd2 (6. a3 Ng6 7. Bg3 a5 8. e3 dxe3 9. Qxd8+
Nxd8 10. fxe3 Bc5 11. Kf2 Ne6 12. Nc3 O-O 13. Rd1 f5 14. exf6 gxf6 15. Na4 Ba7
16. c5 f5 17. Bc4 f4 18. exf4 b5 19. cxb6 cxb6 20. Kf1 b5 {Kukov,V (2258)
-Karpatchev,A (2533) Istanbul 2006 0-1 (43)}) (6. e4 Ng6 7. Bg3 Bg4 8. h3 Bxf3
9. gxf3 Bb4+ 10. Nd2 Ngxe5 11. f4 Nd7 12. Qf3 Bxd2+ 13. Kxd2 Qe7 14. Rd1 O-O-O
15. Kc1 Nc5 16. Bg2 Kb8 17. Rhe1 d3 18. Rd2 Qe6 19. Kb1 Qxc4 20. Rc1 Qb5 {
Nordstrom,F (2165)-Thornert,H (2193) Sweden 2010 1/2-1/2 (63)}) 6... Ng6 7. Bg5
f6 8. exf6 gxf6 9. Bh4 Bg4 10. Bg3 Qe7 11. Qb3 O-O-O 12. O-O-O Bh6 13. Kb1 Nge5
14. Ka1 Bf5 15. h3 Nb4 16. Ne1 Rhe8 17. Bh2 Qc5 18. f4 Nec6 19. a3 Qa5 20. Nd3
{Polak,T (2410)-Neubauer,M (2295) Stockerau 1993 1-0 (49)}) (5... Be6 6. Nbd2
Qd7 7. Qa4 Nge7 8. O-O-O Ng6 9. g3 Bg4 10. Bg2 Nxf4 11. gxf4 O-O-O 12. Nb3 Qf5
13. Nfxd4 Nxd4 14. Nxd4 Qxf4+ 15. e3 Qxf2 16. Qxa7 Qxg2 17. Qa8+ Kd7 18. Qxd8+
{1-0 (18) Santos,A (2290)-Rodrigues,N (2165) Almada 1998}) (5... Bg4 6. a3 Nge7
7. Nbd2 Ng6 8. Bg3 Qd7 9. h3 Be6 10. e4 dxe3 11. fxe3 O-O-O 12. Qc2 Bc5 13. Qc3
Rhe8 14. b4 Bf8 15. Be2 f6 16. exf6 gxf6 17. Rd1 Qg7 18. Kf2 Be7 19. Rhg1 Rg8
20. Bh2 {Charkhalashvili,I (2278)-Koneru,H (2387) Athens 2001 1/2-1/2}) (5...
f6 6. e3 Bb4+ 7. Nbd2 fxe5 8. Nxe5 (8. Bxe5 $143 dxe3 9. fxe3 Nxe5 10. Nxe5 Qe7
$15) 8... dxe3 9. Bxe3 (9. fxe3 $143 Nxe5 10. Bxe5 Qe7 $15) 9... Bxd2+ 10. Qxd2
Qxd2+ 11. Kxd2 Nxe5 12. Bd4 $14) 6. Nbd2 $16 Nge7 7. a3 Ng6 (7... Bxd2+ $142 8.
Qxd2 Bg4 $16) 8. Bg5 $4 {letting the wind out of his own sails} (8. axb4 $142
Nxf4 9. b5 $16) 8... Be7 $15 9. Bxe7 Qxe7 {[%cal Rc6e5,Re7e5,Rg6e5,Gf3e5] Will
e5 fall?} 10. Nb3 {[%cal Rb3d4,Rd1d4,Rf3d4,Gc6d4] Now all is on d4} (10. g3 Bf5
$15) 10... Ngxe5 (10... Bg4 $5 11. Qc2 Bxf3 12. gxf3 Qxe5 $17) 11. Nbxd4 $11
Nxc4 $4 {a transit from better to worse.} (11... Bg4 $142 {is a viable option}
12. Nxe5 Nxe5 $11) 12. Nxc6 $16 bxc6 13. Qc2 Be6 (13... Nb6 $5 $16) 14. e3 $18
Ne5 $4 {sad, but how else could Black save the game?} (14... Nb6 $142 15. Qxc6+
Bd7 16. Qxc7 O-O $18) 15. Nd4 (15. Nxe5 $142 {and White has it in the bag} O-O
16. Nxc6 $18) 15... c5 (15... O-O $5 $16) 16. Nxe6 fxe6 $4 {terrible, but what
else could Black do to save the game?} (16... Qxe6 17. Qxc5 Rd8 18. Be2 $16)
17. Bb5+ (17. Qe4 {and White can already relax} O-O 18. Qxe5 Qd6 $18) 17... Nd7
$4 {further deteriorates the position} (17... c6 $142 18. Be2 O-O $16) 18. Rd1
(18. Qa4 {keeps an even firmer grip} Rb8 19. O-O-O O-O 20. Rxd7 Qg5 $18) 18...
Rd8 (18... c6 19. Bxc6 O-O-O $18) 19. Qa4 O-O (19... Rf8 {cannot change what
is in store for White} 20. O-O a6 21. Bc6 $18) 20. Bxd7 Qf6 (20... Rf7 {
cannot undo what has already been done} 21. Bc6 $18) 21. O-O Qxb2 22. Bxe6+ Kh8
23. Rxd8 Rxd8 24. Rd1 Rf8 25. Qh4 (25. Qf4 $142 {makes it even easier for White
} Qb8 26. Qg5 c4 $18) 25... Qf6 (25... Qc2 {does not improve anything} 26. Rf1
Qd3 27. Qa4 $18) 26. Qxf6 gxf6 27. h4 Re8 28. Bf5 Kg7 (28... Re7 {does not
solve anything} 29. Rd8+ Kg7 30. Rd5 $18) 29. Rd7+ Kf8 30. Rxc7 Re7 (30... h6 {
cannot change destiny} 31. Rh7 $18) 31. Rxc5 (31. Rxe7 $142 {seems even better}
Kxe7 32. Bxh7 $18) 31... Re5 (31... Kg7 $18 {hoping against hope}) 32. Rxe5
fxe5 33. Bxh7 Kg7 34. Be4 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "3.6"]
[White "Shimomura, Kensei"]
[Black "Takeuchi, Hiroshi"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1199"]
[BlackElo "1388"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "80"]
[EventDate "2024.03.23"]

{B08: Pirc Defence: Classical System} 1. e4 d6 2. d4 Nf6 3. Nc3 g6
4. Nf3 Bg7 5. Bc4 Bg4 (5... e6 6. O-O a6 7. a4 O-O 8. h3 Nc6 9. Bg5 h6 10. Be3
d5 11. Bd3 Nb4 12. e5 Nd7 13. Ne2 c5 14. dxc5 Nc6 15. Ned4 Ndxe5 16. Nxe5 Nxe5
17. Be2 Nc6 18. f4 Qe7 19. Qd2 Bd7 20. b4 {Honos,A (2323)-Horvath,T (2426)
Hungary 2007 1-0 (40)}) 6. h3 $146 (6. Be3 Nc6 7. h3 Bxf3 8. Qxf3 O-O 9. Ne2 e5
10. d5 Ne7 11. Bb3 Nd7 12. g4 a5 13. c3 a4 14. Bc2 c6 15. dxc6 bxc6 16. h4 d5
17. h5 d4 18. Bc1 Nc5 19. cxd4 exd4 20. Nf4 d3 {Cao,K (2184)-Naroditsky,D 
(2486) Saint Louis 2012 0-1 (38)}) (6. e5 dxe5 7. Bxf7+ Kf8 8. Bb3 Nc6 9. d5 e4
10. h3 exf3 11. hxg4 fxg2 12. Rg1 Ne5 13. Rxg2 Qd7 14. Qe2 Nexg4 15. Bf4 Bh6
16. Bxh6+ Nxh6 17. O-O-O Nf5 18. Kb1 Nd6 19. Ba4 Qd8 20. Qd2 a6 {Sarbok,T 
(2362)-Gaerths,R (2269) Berlin 2004 1/2-1/2 (47)}) (6. O-O Nc6 7. d5 Ne5 8. Be2
Nxf3+ 9. Bxf3 Bxf3 10. Qxf3 O-O 11. Be3 c6 12. dxc6 bxc6 13. e5 dxe5 14. Qxc6
Qb8 15. Rab1 Qb4 16. Qc5 Qb7 17. Qxe5 Ng4 18. Qe4 Qxe4 19. Nxe4 Nxe3 20. fxe3
Rfd8 {Szymanski,P (2210)-Czerwonski,A (2379) Warsaw 2007 0-1 (48)}) 6... Bxf3 {
Black forks: d1, g2+e4} 7. Qxf3 {White has the pair of bishops} Nbd7 (7... Nc6
8. Qd3 $14) 8. O-O e6 {Secures d5} 9. Bg5 h6 10. Bd2 c6 11. d5 {White
threatens to win material: d5xe6} (11. Bb3 O-O $16) 11... Ne5 $14 {Black
threatens to win material: Ne5xf3. Black forks: c4+f3} 12. Qe2 exd5 13. exd5
O-O 14. dxc6 bxc6 15. Bb3 {Black has a cramped position} Qc7 {White has an
active position} 16. Rfe1 Rae8 17. Ne4 Nxe4 18. Qxe4 {Black has a cramped
position} d5 {Black threatens to win material: d5xe4} 19. Qf4 Qd7 $2 (19... Re7
20. Re3 $11) 20. Bc3 {White threatens to win material: Bc3xe5} (20. Bb4 $142
$16) 20... g5 $11 {Black threatens to win material: g5xf4} 21. Qg3 Ng6 22. Ba4
Ne7 $2 (22... Re6 $142 $5 $11 {might be a viable alternative}) 23. Bxg7 $16
Kxg7 24. c3 (24. Qc3+ $5 d4 25. Qc5 $16) 24... f6 (24... Ng6 25. Rad1 $11) 25.
Qf3 (25. Qg4 Qxg4 26. hxg4 Kf7 $14) 25... f5 (25... Ng6 26. Qd3 $11) 26. Rad1
$14 g4 {Black gains space} (26... Nc8 27. Qd3 $14) 27. Qg3 (27. Qe3 $5 $16)
27... Ng6 $14 28. Bc2 h5 29. Qh2 (29. Rxe8 Rxe8 30. Qd3 Re5 $14) 29... Qf7 (
29... f4 $142 $11) 30. h4 $4 {hands over the advantage to the opponent} (30.
Qd6 $142 $14 {would keep White in the game}) 30... f4 $17 31. Bxg6 Kxg6 32. f3
$4 {the position was bad, and this mistake simply hastens the end} (32. a3 $142
$17) 32... g3 $19 33. Qh3 Kg7 (33... Rxe1+ $142 {it becomes clear that Black
will call all the shots} 34. Rxe1 Re8 $19) 34. Kf1 $17 Rxe1+ 35. Rxe1 (35. Kxe1
$142 Rd8 36. Rd3 $17) 35... Kg8 $4 {gives the opponent new chances} (35... Kf6
$142 36. Re2 Re8 $19) 36. Qh1 $4 {ruins a very nice position} (36. Qe6 $142 {
was necessary} Qxe6 37. Rxe6 $11) 36... Qf5 (36... Qg6 $142 {might be the
shorter path} 37. Qh3 Qd3+ 38. Kg1 Rf5 $19) 37. Qg1 (37. Qh3 Qd3+ 38. Kg1 $19)
37... Qd3+ 38. Re2 Re8 39. Qf2 gxf2 40. Kxf2 Qxe2+ (40... Qxe2+ 41. Kg1 Qe1+
42. Kh2 Qxh4+ 43. Kg1 Re1#) (40... Rxe2+ 41. Kg1 Qg6 42. g4 Qb1#) 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "3.7"]
[White "Kuramoto, koutarou"]
[Black "Nakamura, Mitsuru"]
[Result "1-0"]
[ECO "D31"]
[BlackElo "1406"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "57"]
[EventDate "2024.03.23"]

{D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+
Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6} 1.
d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. cxd5 (5. Bd2 Nbd7 6. Qc2 b6 7. cxd5 exd5
8. Bd3 Be7 9. Nge2 Bb7 10. Ng3 g6 11. h4 Qc7 12. e4 c5 13. Nxd5 Nxd5 14. exd5
Bxd5 15. h5 Bf6 16. hxg6 hxg6 17. Rxh8+ Bxh8 18. Bxg6 Bxd4 19. Be4 Bxe4 {
Volkov,S (2605)-Dreev,A (2645) St Petersburg 1998 0-1 (67)}) 5... cxd5 $146 (
5... exd5 6. Bd3 (6. Qc2 c5 7. Nf3 cxd4 8. exd4 a6 9. Bg5 Be7 10. Rc1 O-O 11.
Be2 Nc6 12. Ne5 h6 13. Nxc6 bxc6 14. Bf4 Bd6 15. Bxd6 Qxd6 16. Rd1 c5 17. dxc5
Qxc5 18. Qd2 Be6 19. Qd4 Rfc8 20. Na4 Qxd4 {Brodsky,M (2566)-Drozdovskij,Y 
(2561) Poltava 2006 1/2-1/2 (39)}) 6... Be7 (6... Bd6 7. Nge2 O-O 8. f3 Re8 9.
O-O a6 10. Qe1 c5 11. Qh4 h6 12. Bd2 Nc6 13. Rac1 b6 14. Kh1 Ra7 15. g4 Be7 16.
Qf2 Rc7 17. Ng3 Bf8 18. Kg2 g6 19. h4 Bg7 20. Nce2 Qd6 21. Rh1 {Rakhmanov,A 
(2489)-Rasmussen,A (2519) Athens 2008 1/2-1/2 (41)}) 7. Nge2 a5 8. O-O O-O 9.
a3 Re8 10. b4 Nbd7 11. Rb1 axb4 12. axb4 Nf8 13. f3 Ng6 {1/2-1/2 (13) Fier,A 
(2589)-Rozentalis,E (2600) Koge 2014}) 6. Bd3 a6 {Prevents intrusion on b5} 7.
Nf3 Nbd7 (7... Bd6 8. Bd2 $11) 8. O-O Bd6 (8... b5 9. Bd2 $14) 9. e4 (9. Bd2
O-O $14) 9... dxe4 $14 10. Nxe4 Nxe4 11. Bxe4 Nf6 {Black threatens to win
material: Nf6xe4} 12. Bg5 h6 13. Bxf6 {White forks: g7+d8} Qxf6 {Black has the
pair of bishops} 14. Qb3 Rb8 15. Qb6 {White threatens to win material: Qb6xd6}
(15. Ne5 O-O $14) 15... Qe7 {Black has a cramped position} (15... Qd8 16. Qxd8+
Kxd8 17. Ne5 $11) 16. Rfe1 O-O 17. Ne5 Bc7 {Black threatens to win material:
Bc7xb6} 18. Qb3 Bxe5 19. dxe5 b5 20. Rac1 Bb7 21. Qe3 Bxe4 22. Qxe4 b4 23. Rc6
Ra8 24. Rec1 a5 25. Qc4 (25. Rc7 Qg5 $14) 25... Rfd8 26. Qc5 {White threatens
to win material: Qc5xe7} (26. g3 $5 $11) 26... Qg5 $15 27. Rd6 Rac8 (27... Rxd6
28. exd6 Qd2 29. g3 $15) 28. Rxd8+ (28. Qxc8 $142 $5 {should be considered}
Rxc8 29. Rxc8+ Kh7 30. Rc5 $11) 28... Qxd8 $4 {a weak move, ruining a winning
position} (28... Rxd8 $142 {was much better} 29. g3 Rd2 30. Qxa5 Qf5 $15) 29.
Qxc8 $18 (29. Qxc8 Qxc8 30. Rxc8+ Kh7 31. Ra8 $18) 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.23"]
[Round "3.8"]
[White "Shishido, Kenta"]
[Black "Furuse, Mizuki"]
[Result "0-1"]
[ECO "B08"]
[BlackElo "1157"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "96"]
[EventDate "2024.03.23"]

{[%mdl 8256] B08: Pirc Defence: Classical System} 1. e4 d6 2. d4 Nf6 3. Nc3 g6
4. Nf3 Bg7 5. Bc4 O-O {Black has a cramped position} 6. Ng5 $146 (6. e5 dxe5 7.
Nxe5 c6 (7... Nfd7 8. Qe2 (8. Nf3 Nb6 9. Bb3 Nc6 10. Be3 Bg4 11. Ne2 Bxf3 12.
gxf3 e5 13. d5 Nd4 14. Nxd4 exd4 15. Bxd4 Re8+ 16. Kf1 Qh4 17. Bxg7 Kxg7 18. h3
Re5 19. Qd3 Rae8 20. Rd1 Qf6 21. Rg1 Nd7 22. Qc3 h5 {Trajkoski,S (2316)
-Vladimirov,V (2162) Struga 2011 1-0}) 8... Nb6 9. Bb3 Nc6 10. Nxc6 bxc6 11.
Be3 a5 12. a4 Ba6 13. Qg4 Bc4 {1/2-1/2 (13) Ljubojevic,L (2565)-Planinec,A 
(2525) Madrid 1973}) 8. Be3 Nd5 9. Bxd5 cxd5 10. f4 e6 11. O-O Nc6 12. Nxc6
bxc6 13. Na4 Rb8 14. c3 Re8 15. b4 Ba6 16. Rf2 Bc4 17. Nb2 Ba6 18. a4 Qc7 19.
Qd2 f6 20. Rc1 Qd6 {Estrada Degrandi,W (2350)-Riego Prieto,V (2250) Tucuman
1971 1/2-1/2 (42)}) (6. Bg5 c6 7. Bb3 h6 8. Be3 Nbd7 9. e5 dxe5 10. dxe5 Ng4
11. e6 Nxe3 12. exf7+ Kh7 13. fxe3 Qb6 14. Qe2 Nc5 15. O-O Nxb3 16. axb3 Be6
17. Rf2 Rxf7 18. Raf1 Raf8 19. Qd3 Bf5 20. Qe2 Qb4 {Stevic,Z (2200)-Planinec,A
(2485) Majdanpek 1976 1-0 (36)}) (6. Bb3 Nc6 $11) 6... a6 {Covers b5} (6... h6
$142 7. Nf3 Nxe4 8. Nxe4 d5 $11) 7. Nxf7 (7. O-O $142 {and White hangs on} Nc6
8. Bb3 $11) 7... Rxf7 $17 8. Bxf7+ Kxf7 9. O-O b6 (9... Nc6 10. d5 Na5 11. Qd3
$17) 10. Re1 (10. Qe2 Kg8 $15) 10... Nc6 $17 11. Be3 Bb7 12. Qf3 e5 13. dxe5 (
13. d5 Na5 $17) 13... Nxe5 14. Qf4 (14. Qe2 Qe7 $17) 14... Kg8 $19 15. Rad1 $4
{White crumbles in face of a dire situation} (15. Qh4 Qd7 $19) 15... Qe7 (15...
Nh5 $142 {secures the point} 16. Qg5 Bf6 17. Qxf6 Qxf6 $19) 16. Nd5 Nxd5 17.
exd5 Rf8 18. Qg3 (18. Qe4 Bc8 $19) 18... Bf6 (18... Qf7 19. f4 Nc4 20. Bd4 Nxb2
21. Bxg7 Qxg7 22. Rd2 $19) 19. Bf4 (19. Bh6 Re8 $17) 19... Qf7 (19... Bh4 20.
Qe3 Qf7 21. Bg3 Bxg3 22. fxg3 Bxd5 23. Rf1 $19) 20. Qb3 (20. Bh6 Re8 $17) 20...
h5 (20... b5 21. Re4 $19) 21. c4 Bh4 22. g3 Bg5 $1 {Decoy: g5} 23. Rd4 (23.
Bxg5 Qf5 {Decoy Double attack}) 23... Bf6 (23... Bxf4 $6 24. Rxf4 Qe8 25. Rxf8+
Kxf8 26. h4 $15) 24. Bh6 (24. Rde4 c6 25. Rd1 b5 26. cxb5 cxd5 $17 (26... axb5
$6 27. Bh6 $15)) 24... Re8 (24... Nf3+ $142 $1 25. Qxf3 Bxd4 26. Qxf7+ Rxf7 27.
Re8+ Kh7 $19) 25. Rde4 $17 Re7 (25... b5 $142 26. f4 bxc4 $19) 26. h3 $2 (26.
Qe3 $5 $17) 26... g5 (26... b5 {keeps an even firmer grip} 27. Rd1 bxc4 28.
Qxb7 $19) 27. f4 (27. Bxg5 $142 Bxg5 28. f4 $19) 27... gxf4 28. Bxf4 Bc8 29.
Bxe5 (29. Kg2 $19) 29... dxe5 (29... Bxe5 {keeps an even firmer grip} 30. Rf1
Qg6 31. Qf3 $19) 30. g4 $2 (30. Kg2 $142 $17) 30... Qg6 $19 31. Qb4 (31. Qg3
$19) 31... hxg4 32. hxg4 (32. h4 {desperation} Bxh4 33. Qc3 Bxe1 34. Rxe1 $19)
32... Bxg4 33. Kf2 (33. c5 Bf3+ 34. Rg4 Bxg4 35. Qe4 $19) 33... Bh4+ 34. Ke3
Qg5+ (34... Rf7 $142 {and Black can celebrate victory} 35. Qc3 Rf3+ 36. Kd2
Rxc3 37. bxc3 Bxe1+ 38. Rxe1 Qf5 $19) 35. Kd3 Bxe1 36. Qxe1 Bf5 37. a4 (37. Kc3
{is not much help} Bxe4 38. Qxe4 Rf7 $19) 37... Bxe4+ (37... Rh7 38. d6 Rh3+
39. Kc2 Qg2+ 40. Kb1 Bxe4+ 41. Qxe4 Qxe4+ 42. Kc1 Rh2 43. dxc7 Qc2#) 38. Qxe4
Kg7 39. b4 (39. Qe1 Rf7 40. Kc2 Qg6+ 41. Kb3 Qd3+ 42. Qc3 Rf3 $19) 39... Qg6 (
39... Rf7 $142 {and Black has prevailed} 40. Qe3 Rf4 41. c5 Qf5+ 42. Kc3 $19)
40. c5 (40. Qxg6+ {is not the saving move} Kxg6 41. Ke4 Kf6 $19) 40... Qxe4+ (
40... bxc5 $142 {ends the debate} 41. bxc5 Kf6 42. Qxg6+ Kxg6 43. Ke4 $19) 41.
Kxe4 Kf6 (41... bxc5 $142 $5 {makes it even easier for Black} 42. bxc5 Kf6 43.
Ke3 $19) 42. d6 cxd6 43. cxd6 (43. cxb6 {doesn't change anything anymore} Ke6
$19) 43... Rd7 44. Kd5 e4 (44... Kf5 $142 $19 {seems even better}) 45. Kc6 Ke6
46. b5 Rxd6+ 47. Kb7 (47. Kc7 {does not help much} axb5 48. Kb7 bxa4 49. Ka6 a3
50. Kb7 a2 51. Ka6 a1=Q+ 52. Kb5 Qa3 53. Kc4 Qd3+ 54. Kb4 Rd4#) 47... axb5 48.
axb5 (48. Ka6 {a fruitless try to alter the course of the game} bxa4 49. Kb5 a3
50. Ka6 a2 51. Ka7 a1=Q+ 52. Kb7 Ke7 53. Kb8 Rd7 54. Kc8 Qh8#) 48... e3 (48...
e3 49. Kc7 e2 50. Kb7 Rd7+ 51. Kxb6 e1=Q 52. Kc5 Qc3+ 53. Kb6 Qa3 54. Kc6 Qd6#)
0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.24"]
[Round "4.1"]
[White "Sugimoto, Koichi"]
[Black "Yamaguchi, Tosei"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1864"]
[BlackElo "1940"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "80"]
[EventDate "2024.03.23"]

{A45: Trompowsky Attack} 1. d4 Nf6 2. Bf4 g6 3. Nc3 d5 4. e3 (4.
Nb5 Na6 5. e3 Bg7 6. Nf3 (6. c4 c6 7. Nc3 Qb6 8. Qb3 Nh5 9. Be5 Qxb3 10. axb3
Bxe5 11. dxe5 dxc4 12. Bxc4 Nc7 13. Nf3 Ng7 14. Ne4 Bf5 15. Nc5 b6 16. Na6 Nxa6
17. Bxa6 Rb8 18. Nd4 Bd7 19. Rc1 c5 20. Nb5 O-O {Barva,A (2389)-Korpa,B (2417)
Hungary 2015 0-1 (50)}) 6... O-O 7. c4 c6 8. Nc3 Nc7 9. h3 Ne6 10. Be5 a6 11.
Rc1 dxc4 12. Bxc4 b5 13. Bb3 Qd7 14. O-O Bb7 15. Bxf6 Bxf6 16. Ne4 Bg7 17. Bxe6
Qxe6 18. Nc5 Qc8 {Matlakov,M (2695)-Kovalev,V (2539) Wroclaw 2014 1-0 (31)})
4... Bg7 5. Be2 O-O 6. h4 h5 $146 (6... c5 7. Nf3 Nc6 8. h5 Nxh5 9. Bh2 Bg4 10.
Qd2 Nf6 11. Be5 Ne4 12. Nxe4 dxe4 13. Bxg7 Kxg7 14. Ng5 Bxe2 15. Rxh7+ Kg8 16.
Kxe2 e5 17. Rah1 Qxg5 18. d5 Rad8 19. c4 Qxg2 20. Qc3 Nd4+ 21. exd4 {Fridman,D
(2616)-Schmidt,W (2360) Poznan 2014 1-0}) 7. f3 {Covers e4+g4} (7. Nf3 $5 $11)
7... c5 8. g4 (8. dxc5 $5 {is an interesting idea} Qa5 9. Qd3 $15) 8... cxd4 9.
exd4 Nc6 10. Qd2 hxg4 11. O-O-O Nh5 (11... g3 12. Bxg3 Bf5 13. Bd3 $15) 12.
fxg4 Nxf4 13. Qxf4 e5 (13... Bxd4 14. Rxd4 e5 $11) 14. dxe5 $15 Bxe5 15. Qd2 (
15. Qh6 $142 {and White has air to breath} Bg7 16. Qf4 $15) 15... d4 $19 16.
Ne4 Qd5 17. Nf2 (17. Bd3 Qxa2 18. Qg5 $17) 17... Qxa2 18. Qg5 Qa1+ (18... Re8
$142 {keeps an even firmer grip} 19. Nd3 Bd6 20. Kd2 $19) 19. Kd2 Qxb2 20. Ke1
Qc3+ (20... Nb4 {and Black can already relax} 21. Nd3 Nxd3+ 22. Rxd3 $19) 21.
Kf1 Qe3 (21... Qxc2 $6 22. Nf3 Re8 23. Bd3 $17) 22. Nf3 (22. Rh3 Qxg5 23. hxg5
a5 $19) 22... Qxg5 (22... Bf4 $142 {and Black has prevailed} 23. Qf6 Bg3 $19)
23. Nxg5 f6 24. Bc4+ Kg7 25. Nf3 Na5 (25... a5 26. h5 $19) 26. Bd5 (26. Be2 Rh8
$19) 26... Rd8 27. Be4 Nc4 28. Ke2 Ne3 29. Rdg1 Be6 (29... Nd5 30. h5 Nc3+ 31.
Kd3 $19) 30. h5 $17 g5 31. h6+ Kf7 (31... Kh8 $142 $5 $17) 32. Nxe5+ $15 fxe5
33. Rh5 {White threatens to win material: Rh5xg5} Kf6 34. Rg3 (34. Bf3 $5 Rac8
35. Ne4+ Ke7 36. c3 $17) 34... Nd5 $17 35. Nh3 (35. Rf3+ $5 Nf4+ 36. Kd2 $17)
35... Nf4+ $19 36. Nxf4 exf4 (36... gxf4 37. g5+ Kf7 38. Rg1 f3+ 39. Kxf3 $18)
37. Rg1 Bf7 38. Rh2 Re8 39. Kf3 $2 (39. Kd3 Rac8 40. Bf5 $17) 39... Bg6 (39...
Rac8 {might be the shorter path} 40. h7 Bg6 41. Rh6 Rxe4 42. h8=Q+ Rxh8 43.
Rxh8 Re3+ 44. Kf2 $19) 40. Bxg6 (40. Bxb7 Re3+ 41. Kf2 Rb8 $19) 40... Kxg6 (
40... Kxg6 41. Rd2 Rac8 $19) 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "2"]
[Date "2024.03.24"]
[Round "4.2"]
[White "Shinoda, Taro"]
[Black "Nishimori, Toshiyuki"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "1911"]
[BlackElo "1570"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "51"]
[EventDate "2024.03.23"]

{E01: Catalan: Early deviations} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2
Nc6 5. Nf3 (5. cxd5 exd5 6. Nc3 Bb4 7. Bg5 h6 8. Bxf6 Qxf6 9. e3 Qd6 10. Nge2
Ne7 11. a3 Bxc3+ 12. Nxc3 O-O 13. O-O c6 14. b4 Bf5 15. b5 Rfc8 16. Qb3 Bd3 17.
bxc6 Bc4 18. Qb4 Qxb4 19. axb4 Rxc6 {Eljanov,P (2761)-Khenkin,I (2614) Sibenik
2010 1/2-1/2 (50)}) 5... Rb8 6. Nbd2 $146 (6. cxd5 exd5 7. O-O h6 8. Nc3 Bb4 9.
Ne5 O-O 10. a3 Bxc3 11. bxc3 Re8 12. Bf4 g5 13. Be3 Ng4 14. Nxg4 Bxg4 15. c4
dxc4 16. d5 Na5 17. h3 Bh5 18. Ra2 Qd6 19. a4 a6 20. Qd4 Qe5 {Tsatsalashvili,K
(2262)-Khurtsilava,I (2163) Konya 2015 0-1 (38)}) 6... b6 (6... Bd6 7. O-O $11)
7. O-O Bb7 8. b3 Bb4 9. Bb2 O-O 10. a3 Bxd2 11. Qxd2 {White has the pair of
bishops} Ne4 12. Qc2 Ne7 13. Ne5 f6 {Black threatens to win material: f6xe5}
14. Nd3 Qe8 (14... Nf5 15. Rac1 Rf7 16. Nf4 $14) 15. cxd5 Bxd5 (15... exd5 $142
$5 {is worth looking at} 16. Qxc7 Nd2 $14) 16. Nf4 $18 (16. Qxc7 $6 Nd2 17.
Rfd1 Nxb3 $14) 16... f5 17. f3 (17. Qxc7 $6 Nd2 18. Rfd1 Nxb3 19. Nxe6 Bxe6 $14
) 17... Nf6 $2 (17... Nd6 $142 $5 $16) 18. e4 $18 fxe4 19. fxe4 Bc6 $4 {
simply worsens the situation} (19... g5 20. Nxd5 exd5 $18) 20. Nxe6 Rf7 21. d5
Bb5 22. Rfc1 (22. Rf3 $5 {seems even better} Rc8 23. Qc3 Qd7 $18) 22... c5 23.
a4 (23. d6 {makes it even easier for White} Ng6 24. Nc7 Rxc7 25. dxc7 Rc8 $18)
23... Ba6 (23... Bd7 {is not much help} 24. Ng5 Rf8 25. e5 $18) 24. Ng5 Rf8 25.
e5 Nd7 (25... Ng6 {there is nothing better in the position} 26. Ne6 Ng4 27.
Nxf8 Qxf8 $18) 26. Qxh7# 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "3"]
[Date "2024.03.24"]
[Round "4.3"]
[White "Yoshii, Yukihiko"]
[Black "Takeuchi, Hiroshi"]
[Result "0-1"]
[ECO "E92"]
[WhiteElo "1644"]
[BlackElo "1388"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "44"]
[EventDate "2024.03.23"]

{[%mdl 8256] E92: King's Indian: Classical: 6 Be2 e5: 7 dxe5, 7 Be3 and
Petrosian System without 7...Nbd7} 1. c4 Nf6 2. Nc3 d6 3. d4 g6 4. e4 Bg7 5.
Nf3 O-O 6. Be2 e5 7. h3 Nc6 (7... Na6 8. O-O exd4 9. Nxd4 Re8 10. Bf3 c6 11.
Bf4 Qe7 12. Nb3 Rd8 13. Re1 Be6 14. Nd5 Qf8 15. Ne3 Nc5 16. Qc2 Nfd7 17. Nf5
Nxb3 18. axb3 gxf5 19. exf5 Ne5 20. Bxe5 Bxe5 21. fxe6 fxe6 22. Bg4 {Gamboa,N 
(2405)-Ravi,L (2370) Manila 1992 1/2-1/2 (50)}) (7... exd4 8. Nxd4 Re8 9. Bg5
h6 10. Bxf6 Qxf6 11. Nf3 Na6 12. O-O c6 13. Re1 Nc5 14. Bf1 a5 15. Rc1 Bd7 16.
Rc2 Rad8 17. Rd2 Bc8 18. g3 Qe7 19. Rde2 Be6 20. Rd2 Qc7 21. Nd4 Bc8 22. Bg2 {
Anarkulov,A (2234)-Kasyan,A (2283) Tashkent 2010 0-1 (40)}) 8. Be3 $146 (8. d5
Ne7 9. g4 Ne8 10. Bg5 h6 11. Be3 f5 12. Ng1 Nf6 13. f3 c6 14. Qd2 cxd5 15. cxd5
Kh7 16. Bd3 Qa5 17. Nb5 Qd8 18. Qb4 a6 19. Nc3 b5 20. a4 a5 21. Qb3 b4 22. Nb5
Bb7 {Konovalova,O (2190)-Dolzhikova,O (2213) Kharkov 1999 0-1 (34)}) (8. d5 Nd4
$14) 8... a6 {White has a very active position} (8... exd4 9. Nxd4 Re8 10. Nxc6
bxc6 11. Qc2 $15) 9. O-O (9. dxe5 dxe5 10. O-O Be6 $14) 9... Bd7 (9... exd4 10.
Nxd4 Qe7 11. Bd3 $11) 10. a3 {Consolidates b4} (10. d5 $5 Ne7 11. Qb3 $14)
10... exd4 $11 {Black forks: c3+e3} 11. Nxd4 {White has a very active position}
Re8 12. f3 {Prevents intrusion on g4} Nh5 13. Nxc6 bxc6 14. Qe1 (14. Qd2 a5 $11
) 14... f5 (14... Rb8 15. Ra2 $15) 15. Bd3 (15. g4 $5 {should be considered} f4
16. Bf2 $15) 15... f4 $17 16. Bf2 Qg5 17. Kh2 (17. h4 Qe5 18. Rd1 Bf6 $15)
17... Ng3 {Black threatens to win material: Ng3xf1} (17... Rab8 18. Qd2 $17)
18. Rg1 $2 (18. Bxg3 fxg3+ 19. Qxg3 Qd2 $15) 18... Qh4 (18... Rab8 $142 $5 19.
Rb1 a5 $17) 19. Rb1 (19. Bxg3 $4 {if White takes the knight he will lose} fxg3+
20. Qxg3 Be5 21. Qxe5 Rxe5 $19) 19... g5 (19... Qh6 $142 $15) 20. Bxg3 $4 {
a weak move, ruining a winning position} (20. Ne2 $142 $16) 20... fxg3+ $19 21.
Kh1 (21. Qxg3 {is the last straw} Be5 22. Qxe5 Rxe5 23. Ne2 $19) 21... Bxh3 $1
{Deflection: h3} 22. Rf1 (22. gxh3 Qxh3# {Mate attack Deflection}) (22. Z0 $140
Be6# {Mate threat}) 22... Bxg2+ $1 {Clearance: h3} (22... Bxg2+ 23. Kxg2 Qh2#)
0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "4"]
[Date "2024.03.24"]
[Round "4.4"]
[White "Aoki, Yasuhiro"]
[Black "Hasegawa, Emi"]
[Result "1/2-1/2"]
[ECO "A39"]
[WhiteElo "1598"]
[BlackElo "1417"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "73"]
[EventDate "2024.03.23"]

{A39: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6 6 0-0 0-0 7 d4} 1. c4
c5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. Nc3 Nc6 7. d4 cxd4 8. Nxd4 Nxd4
9. Qxd4 d6 10. Qd3 Rb8 11. e4 a6 12. Be3 $146 (12. Rd1 Bg4 (12... Be6 13. Qe2
Qc8 14. Nd5 Bxd5 15. exd5 Qc7 16. Be3 Nd7 17. Rac1 a5 18. b3 Nc5 19. Re1 Rfe8
20. Bd2 Qb6 21. Bh3 Na6 22. Bd7 Red8 23. Bb5 Bf6 24. Bc3 Bxc3 25. Rxc3 Nc7 26.
Ba4 Qb4 27. Re3 {Fries Nielsen,N (2315)-Barry,C (2250) Berlin West 1980 1-0 
(74)}) (12... Nd7 13. Be3 b5 14. cxb5 axb5 15. Nxb5 Ne5 16. Qf1 Bg4 17. Re1 Bd7
18. a4 Ng4 19. Ba7 Ra8 20. h3 Ne5 21. Be3 Qb8 22. b3 Nd3 23. e5 Nxe1 24. Bxa8
Nc2 25. Ba7 Qxa8 26. Rc1 Bxb5 27. Qxb5 {Ulziibayar,B (2219)-Enkhnar,E (2278)
Govi Altai 2014 0-1 (34)}) 13. f3 Be6 14. Qe2 Rc8 15. Nd5 b5 16. cxb5 Bxd5 17.
exd5 Qb6+ 18. Be3 {1/2-1/2 (18) Schneider,L (2328)-Tallinger,T (2200) Sweden
2007}) (12. b3 b5 13. Bb2 Nd7 14. cxb5 axb5 15. Qd2 Bb7 16. Nxb5 Bxb2 17. Qxb2
Ba6 18. a4 Nc5 19. Qc3 Qb6 20. e5 dxe5 21. Rac1 Ne6 22. Qxe5 Bxb5 23. Qxb5 Qxb5
24. axb5 Rxb5 25. Rfe1 Rxb3 26. Bd5 Rb6 {Visakh,N (2375)-Deepan Chakkravarthy,
J (2497) Delhi 2015 1/2-1/2 (34)}) 12... Nd7 13. Bd4 {Black has a cramped
position. Black's piece can't move: c8} (13. Rac1 Ne5 14. Qe2 Bd7 $14) 13...
Ne5 $11 14. Qe2 (14. Qd1 $5 $11) 14... Bg4 $15 {Black threatens to win
material: Bg4xe2} 15. Qc2 Nf3+ (15... Nxc4 $142 $5 {and Black could well hope
to play on} 16. Bxg7 Kxg7 $15) 16. Bxf3 $14 Bxf3 17. Bxg7 Kxg7 {Black king
safety dropped} 18. Nd5 Bg4 19. Qc3+ f6 20. Qe3 h5 21. f3 {White threatens to
win material: f3xg4} Bd7 22. Rac1 {[%cal Yc4c5] White prepares the advance c5}
Rh8 23. h4 b5 (23... Bc6 $142 $5 $14 {is worthy of consideration}) 24. c5 $16
dxc5 25. Qxc5 Kf7 26. Qc7 $4 {releasing the pressure on the opponent} (26. e5
$142 $18 {White has the better game}) 26... Be6 $11 27. Qxd8 {White has a mate
threat} Rhxd8 28. Rfd1 (28. Rc5 Bxd5 29. exd5 Rd6 $11) 28... b4 (28... Rbc8 $5
$15 {is worth consideration}) 29. Rc7 $11 Bxd5 30. exd5 {A double rook endgame
occured} Rd6 31. Re1 Re8 32. Re4 a5 (32... b3 33. axb3 Rxd5 34. Kf2 $11) 33.
Rc5 Ra8 34. Rc7 {White threatens to win material: Rc7xe7} Re8 35. Rc5 Ra8 36.
Rc7 {Twofold repetition} (36. Kf2 f5 37. Re5 Ra7 $14) 36... Re8 $11 37. Rc5
1/2-1/2

[Event "Hokkaido Chess Championship 2024"]
[Site "5"]
[Date "2024.03.24"]
[Round "4.5"]
[White "Ito, Katsuhide"]
[Black "Kawamura, Takuto"]
[Result "0-1"]
[ECO "B47"]
[WhiteElo "1199"]
[BlackElo "1601"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "62"]
[EventDate "2024.03.23"]

{B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2} 1. e4 c5
2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 Nf6 7. O-O Be7 {White has
an active position} 8. f4 $4 $146 {there were better ways to keep up the
pressure} (8. Be3 O-O 9. a4 (9. Kh1 d5 10. exd5 exd5 11. Bf3 Be6 12. Re1 Rad8
13. Qe2 h6 14. Rad1 Rfe8 15. Nxe6 fxe6 16. Bxh6 gxh6 17. Qxe6+ Kg7 18. Nxd5
Nxd5 19. Bxd5 Bg5 20. Qxe8 Rxe8 21. Rxe8 Ne7 22. Bb3 Qe5 23. c3 h5 {Burg,T 
(2301)-Epishin,V (2587) Tilburg 2007 0-1}) 9... Rd8 10. f4 d5 11. e5 Ne4 12.
Nxc6 bxc6 13. Nxe4 dxe4 14. Qe1 a5 15. Bc4 c5 16. Bd2 Bb7 17. Bc3 Rd4 18. b3 g6
19. Rd1 Qd7 20. h3 Bd8 21. Bxd4 cxd4 22. Qf2 Bb6 {Hamdouchi,H (2576)-Granda
Zuniga,J (2592) Navalmoral 2007 1/2-1/2}) (8. Ndb5 Qb8 9. f4 d6 10. Be3 O-O 11.
a4 Rd8 12. Kh1 a6 13. Nd4 e5 14. Nb3 Be6 15. f5 Bxb3 16. cxb3 Nb4 17. Bf3 d5
18. exd5 Qd6 19. Qe2 Re8 20. Ne4 Nxe4 21. Bxe4 Rac8 22. Rac1 h6 {Svidler,P 
(2738)-Grachev,B (2640) Moscow 2008 1-0 (33)}) (8. Nb3 O-O 9. f4 d6 10. g4 a6
11. g5 Nd7 12. Bd3 Re8 13. Qh5 g6 14. Qh4 b5 15. Rf3 Bf8 16. Rh3 h6 17. Be3 b4
18. Ne2 d5 19. Ng3 Qd8 20. e5 Bg7 21. Rf1 Kh7 22. Nh5 Rh8 {Tomczak,J (2544)
-Swiercz,D (2631) Warsaw 2014 1-0 (79)}) (8. a4 O-O 9. Nb3 b6 10. f4 d6 11. Be3
Bb7 12. a5 Nxa5 13. Nxa5 bxa5 14. Bf3 Rfd8 15. Qe2 Bc6 16. Rfd1 Rab8 17. b3 d5
18. exd5 Nxd5 19. Bxd5 exd5 20. Bd4 Rb4 21. Be5 Qb6+ 22. Kh1 f6 {Chelushkina,I
(2357)-Pavlovic,M (2457) Belgrade 2008 0-1}) (8. Ndb5 Qb8 $14) 8... d6 (8...
Nxd4 $142 {secures victory} 9. Be3 Nxe2+ 10. Qxe2 Qc6 $19) 9. f5 {White gains
space} (9. Be3 O-O $14) 9... Nxd4 (9... Qb6 $5 {should not be overlooked} 10.
Be3 e5 $11) 10. Qxd4 $14 d5 11. Be3 (11. exd5 $4 {the pawn contains a lethal
dose of poison} Bc5 12. Be3 Bxd4 13. Bxd4 O-O $19) 11... dxe4 12. Qa4+ (12.
fxe6 $142 $5 {and White can hope to survive} Bxe6 13. Nxe4 $14) 12... Bd7 $15
13. Bb5 (13. Nb5 Qe5 14. fxe6 fxe6 $17) 13... a6 {Black threatens to win
material: a6xb5} (13... Ng4 $5 14. Bxd7+ Qxd7 15. Qxe4 exf5 $15) 14. Rad1 Rd8 (
14... Bc6 $142 $5 $15 {must definitely be considered}) 15. Bxd7+ $14 Rxd7 16.
Nxe4 Nxe4 17. fxe6 fxe6 18. Qxe4 Rxd1 19. Rxd1 {White has a king attack} Qc6 {
Black threatens to win material: Qc6xe4} 20. Qe5 {White threatens to win
material: Qe5xg7} (20. Qxc6+ $142 bxc6 21. Rd3 $14) 20... Kf7 $4 {Black is
ruining his position} (20... O-O 21. b3 $11) 21. Kh1 $4 {forfeits the advantage
} (21. Qh5+ $142 {White clearly has the better chances} g6 22. Rf1+ Ke8 23. Qe5
$16) 21... Bf6 {Black threatens to win material: Bf6xe5} (21... Qxc2 $4 {
Black will not be able to digest the pawn} 22. Rf1+ Bf6 23. Bg5 $18) 22. Rf1 (
22. Qh5+ $142 g6 23. Qh6 Qxc2 24. Rf1 $11) 22... Qxc2 $4 {not a good decision,
because now the opponent is right back in the game.} (22... Rd8 $142 {this is
the best bet to save the position} 23. Qh5+ Kg8 $11) 23. Bg5 $18 Qg6 (23... Rf8
{desperation} 24. Bxf6 Qc4 $18) 24. Qc7+ Kg8 25. Bxf6 (25. Qc8+ {makes it even
easier for White} Kf7 26. Qxb7+ Kf8 27. Bxf6 gxf6 $18) 25... gxf6 (25... h5 {
is not the saving move} 26. Bc3 h4 $18) 26. Qxb7 (26. Rd1 $142 {secures the win
} Qe8 27. Rd7 Qxd7 28. Qxd7 $18) 26... Qf7 $16 27. Qxa6 Kg7 28. Rd1 (28. b4 e5
$16) 28... e5 (28... Rb8 29. Qe2 $16) 29. Rd3 (29. Qa4 $5 Re8 30. Rd7 $16)
29... Re8 30. Qc6 (30. Rg3+ $5 Kh8 31. a4 $16) 30... Qxa2 $11 {Black has a
mate threat.} 31. Rd7+ Kg6 (31... Kg6 32. h3 Qb1+ (32... Qxb2 {leads to a
pleasing mate} 33. Qe4+ f5 34. Qc6+ Re6 35. Qxe6+ Kg5 36. h4+ Kg4 37. Qh6 Qc1+
38. Qxc1 f4 39. Rg7+ Kf5 40. Qc6 f3 41. Rg5+ Kf4 42. Qxf3#) 33. Kh2 Qf5 $11 (
33... Qxb2 {allows the opponent a nice mating combination} 34. Qe4+ f5 35. Qc6+
Re6 36. Qxe6+ Kg5 37. Qg8+ Kf4 38. Qg3+ Ke4 39. Qf3#)) 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "6"]
[Date "2024.03.24"]
[Round "4.6"]
[White "Ono, Yukiko"]
[Black "Miyatani, Ryohei"]
[Result "0-1"]
[ECO "C50"]
[BlackElo "1313"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "38"]
[EventDate "2024.03.23"]

{[%mdl 8256] C50: Hungarian Defence and Giuoco Pianissimo} 1. e4 e5 2. Nc3 Nc6
3. Bc4 Bc5 4. d3 Nf6 5. Nf3 d6 6. Bg5 Be6 7. Bb5 (7. Nd5 Nd4 (7... Bxd5 8. Bxd5
h6 9. Bxc6+ bxc6 10. Be3 Bb6 11. O-O O-O 12. h3 Re8 13. Re1 Re6 14. a4 Rb8 15.
b3 Bxe3 16. Rxe3 c5 17. Nh2 Nh7 18. Rg3 Nf8 19. Ng4 Rg6 20. Ne3 Ne6 21. Kh2 Nd4
22. Qd2 {Apel,S (2337)-Liwak,P (2296) Germany 2003 0-1 (41)}) 8. Nxf6+ gxf6 9.
Bxe6 fxe6 10. Bh4 Nc6 11. c3 Qe7 12. b4 Bb6 13. Nd2 Rg8 14. Nc4 Qf7 15. a4 d5
16. a5 Bd4 17. cxd4 dxc4 18. dxe5 Nxe5 19. dxc4 Rg4 20. Bg3 Rxe4+ 21. Kf1 Rd8 {
Ivanovic,B (2530)-Rodriguez Vargas,O (2445) Terrassa 1989 0-1}) 7... O-O $146 (
7... h6 8. Bh4 Bb4 (8... a6 9. Bxc6+ bxc6 10. d4 exd4 11. Nxd4 Bd7 12. O-O Rb8
13. Nb3 Bb6 14. Qd3 g5 15. Bg3 Nh5 16. Rae1 Nxg3 17. hxg3 Qf6 18. e5 dxe5 19.
Ne4 Qg6 20. Qc3 f6 21. Nbc5 Bf5 22. Nxa6 O-O 23. Nxb8 {Schmidt,W (2160)-Laske,
M (2245) Germany 1999 1/2-1/2 (41)}) 9. d4 Bd7 10. O-O Bxc3 11. bxc3 g5 12. Bg3
Nxe4 13. Bxc6 Bxc6 14. dxe5 dxe5 15. Bxe5 Qxd1 16. Raxd1 f6 17. Bd4 Kf7 18. Nd2
Rhe8 19. f3 Nxd2 20. Rxd2 Rad8 21. g4 Bb5 22. Rb1 {Nimzowitsch,A-Capablanca,J
Riga 1913 0-1 (64)}) 8. O-O Nd4 9. Nh4 $2 (9. Nxd4 $5 Bxd4 10. Qf3 $11) 9...
Nxb5 (9... h6 $5 10. Be3 c6 $17) 10. Nxb5 {Black has the pair of bishops} c6 {
Black threatens to win material: c6xb5} 11. a4 $4 {another step towards the
grave} (11. d4 $142 cxb5 12. dxc5 $17) 11... cxb5 $19 12. axb5 h6 13. Bd2 (13.
Bxf6 {does not save the day} Qxf6 (13... gxf6 $6 14. Qh5 $19) 14. Nf3 Bd7 $19)
13... Nxe4 $1 {Discovered attack: f6, Qd8xh4} 14. Ba5 (14. dxe4 Qxh4 {
Discovered attack}) 14... Qxh4 (14... Nxf2 {and Black can already relax} 15.
Bxd8 Nxd1+ 16. Kh1 Nf2+ 17. Rxf2 Bxf2 18. Rf1 $19) 15. Qf3 (15. dxe4 {does not
win a prize} Qxe4 16. Re1 Qg6 $19) 15... Nxf2 (15... Nf6 $142 $19 {might be
the shorter path}) 16. Qxb7 (16. Rxf2 {praying for a miracle} Bg4 17. Qg3 Qxg3
18. hxg3 $19) 16... Ng4+ 17. Rf2 Qxf2+ 18. Kh1 Qg1+ $1 {Mate attack} 19. Rxg1 (
19. Rxg1 Nf2# {Mate attack}) 19... Nf2# 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "7"]
[Date "2024.03.24"]
[Round "4.7"]
[White "Furuse, Mizuki"]
[Black "Shimomura, Kensei"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "1157"]
[BlackElo "1199"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "115"]
[EventDate "2024.03.23"]

{[%mdl 8256] A07: R騁i Opening: New York and Capablanca Systems} 1. Nf3 Nc6 2.
g3 e5 3. d3 d5 4. Bg2 Nf6 5. O-O Be7 6. Nbd2 Bf5 $146 (6... O-O 7. e4 (7. c4 e4
8. Ne1 exd3 9. Nxd3 dxc4 10. Nxc4 Be6 11. b3 Bd5 12. Bb2 Bxg2 13. Kxg2 Qd5+ 14.
Kg1 Rad8 15. Ne3 Qh5 16. Qc2 Ng4 17. Nxg4 Qxg4 18. Rad1 Bd6 19. f3 Qg6 20. e4
h5 21. Kh1 Rfe8 {Damjanovic,M (2490)-Karaklajic,N (2490) Cienfuegos 1972 1/2-1/
2 (32)}) 7... dxe4 (7... Re8 8. exd5 Nxd5 9. Re1 Bf8 10. Nc4 f6 11. a4 Ndb4 12.
Ne3 Be6 13. Bf1 Nd4 14. Nd2 Ndc6 15. Ndc4 Qd7 16. c3 Nd5 17. a5 b5 18. Nxd5
Qxd5 19. Bg2 Qd7 20. Ne3 Rad8 21. Qh5 Ne7 22. Be4 {Brito Garcia,A (2375)
-Martin Gonzalez,A (2430) Madrid 1992 1/2-1/2 (50)}) (7... d4 8. Qe2 Nd7 9. c4
a5 10. Ne1 Nc5 11. f4 f6 12. f5 a4 13. Ndf3 Bd7 14. g4 Qb8 15. h4 b5 16. cxb5
Qxb5 17. Nh2 a3 18. b3 Nb4 19. Rf3 Bc6 20. Rg3 Kf7 21. Nf1 Qa6 22. Bd2 {
Planinec,A (2520)-Janosevic,D (2430) Umag 1972 0-1 (37)}) 8. dxe4 Be6 9. Re1
Nd7 10. b3 a5 11. a3 Bc5 12. Bb2 Qe7 13. c3 f6 14. b4 Bd6 15. Nf1 Nb6 16. N3d2
Rfd8 17. Qc2 Qf7 18. Ne3 Rd7 {1/2-1/2 (18) Rukavina,J (2480)-Masic,L (2390)
Umag 1972}) (6... O-O 7. e4 $15) 7. b3 O-O {White has a cramped position} 8.
Bb2 e4 {Black threatens to win material: e4xf3} 9. Nh4 {White threatens to win
material: Nh4xf5} Be6 (9... Bd7 $5 {should be investigated more closely} 10.
dxe4 dxe4 $11) 10. dxe4 $16 dxe4 11. Bh1 $4 {hands over the advantage to the
opponent} (11. Nxe4 Nxe4 12. Qxd8 Raxd8 13. Bxe4 f5 14. Bxc6 bxc6 $16) 11...
Bc5 $4 {gives the opponent new chances} (11... e3 $142 12. fxe3 Ng4 $17) 12.
Nxe4 $16 Nxe4 13. Bxe4 Bd4 (13... f5 14. Bg2 $16) 14. c3 (14. Bxd4 Qxd4 15.
Bxc6 Qxd1 16. Raxd1 bxc6 $16) 14... Bf6 15. Nf3 {Black has an active position}
(15. Ng2 Be5 $16) 15... Qe7 16. Qc2 g6 17. Nd4 Nxd4 18. cxd4 c6 19. Bg2 Rfe8
20. e4 Bg7 21. Rfe1 Qg5 22. Rad1 Rad8 23. f4 (23. d5 cxd5 24. h4 Qh6 25. exd5
Bg4 $18) 23... Qb5 24. h3 f5 (24... a5 25. Bc3 $16) 25. d5 $1 {the knock-out
blow} cxd5 (25... Bxb2 26. Qxb2 (26. dxe6 $143 Rxd1 27. Rxd1 Ba3 $16) 26... Bf7
27. exf5 Rxe1+ 28. Rxe1 $16) 26. exd5 Bf7 (26... Rc8 27. Qf2 Bxb2 28. Qxb2 $18
(28. Rxe6 $6 Ba3 29. Rxe8+ Rxe8 $16)) 27. Rxe8+ $18 Qxe8 28. Bxg7 Kxg7 29. Qc3+
Kg8 30. Qe5 Qxe5 $2 (30... Qd7 $142 $18) 31. fxe5 Kf8 32. Kf2 (32. d6 {keeps
an even firmer grip} b6 $18) 32... Ke7 $2 (32... Rc8 33. d6 b6 $18) 33. Ke3 Kd7
(33... Rc8 {doesn't improve anything} 34. d6+ Kd7 35. Bxb7 Rc3+ 36. Rd3 $18)
34. e6+ Ke7 (34... Kd6 {hardly improves anything} 35. exf7 Rf8 36. Kf4 Rxf7 37.
Re1 $18) 35. exf7 Kxf7 (35... Kd6 {cannot undo what has already been done} 36.
Re1 Rf8 37. Kf4 Rxf7 38. Re6+ Kd7 39. Bf3 $18) 36. d6 Rd7 (36... Ke8 {doesn't
do any good} 37. Bxb7 Kd7 38. Ba6 $18) 37. Bd5+ Kf6 38. Bxb7 $1 {the death
sentence} Ke5 (38... Rxb7 39. d7 {Passed pawn}) 39. Bc8 Rxd6 (39... Rd8 {
doesn't change the outcome of the game} 40. d7 $18) 40. Rxd6 Kxd6 41. Kf4 h6
42. Bxf5 $1 {final destruction} gxf5 (42... Kd5 $18 {the only chance to get
some counterplay}) 43. Kxf5 Kc5 44. a3 Kd4 45. Kg6 Kc3 46. Kxh6 Kxb3 47. Kg6 a5
48. h4 Kxa3 49. h5 Ka2 50. h6 Kb1 51. h7 a4 52. h8=Q a3 53. Qc3 a2 54. Qb3+ Ka1
(54... Kc1 {doesn't get the cat off the tree} 55. Qxa2 Kd1 56. Qf2 Kc1 57. g4
Kd1 58. g5 Kc1 59. Kf6 Kb1 60. g6 Kc1 61. g7 Kd1 62. g8=Q Kc1 63. Qgg1#) 55.
Qxa2+ $1 {White should return some of the goodies he has collected.} Kxa2 56.
Kf6 Kb3 (56... Kb1 {doesn't change anything anymore} 57. g4 Ka1 58. g5 Ka2 59.
Kf5 Kb2 60. g6 Kb3 61. g7 Kc3 62. g8=Q Kd3 63. Qf7 Kc3 64. Ke5 Kc2 65. Qc4+ Kd1
66. Qa2 Ke1 67. Ke4 Kd1 68. Kd3 Ke1 69. Qe2#) 57. g4 Kc4 (57... Kb2 {is no
salvation} 58. Ke5 Kc3 59. g5 Kb2 60. g6 Ka2 61. g7 Kb3 62. g8=Q+ Kc3 63. Qd8
Kb3 64. Qd5+ Kb2 65. Qd3 Ka2 66. Qb5 Ka3 67. Kd4 Ka2 68. Kc3 Ka3 69. Qb3#) 58.
g5 (58. g5 Kd5 59. g6 Kc5 60. g7 Kc4 61. g8=Q+ Kd4 62. Qa8 Kc4 63. Qf8 Kd3 64.
Ke5 Kc3 65. Qc8+ Kd2 66. Ke4 Ke1 67. Qc2 Kf1 68. Kf3 Ke1 69. Qe2#) 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "8"]
[Date "2024.03.24"]
[Round "4.8"]
[White "Shishido, Kenta"]
[Black "Kuramoto, koutarou"]
[Result "0-1"]
[ECO "C50"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "64"]
[EventDate "2024.03.23"]

{[%mdl 8256] C50: Hungarian Defence and Giuoco Pianissimo} 1. e4 e5 2. Nf3 Nc6
3. Bc4 Bc5 4. d3 Nf6 5. Bg5 d6 6. O-O h6 7. Bxf6 (7. Bh4 g5 8. Bg3 h5 (8... Bg4
9. h3 Bxf3 10. Qxf3 h5 11. h4 Nd4 12. Qd1 Ng4 13. c3 gxh4 14. cxd4 hxg3 15.
Bxf7+ Kxf7 16. fxg3+ Kg7 17. dxc5 Qg5 18. Qd2 Qe3+ 19. Qxe3 Nxe3 20. Rc1 Raf8
21. Nd2 Kh6 22. Nc4 Nxc4 23. Rxc4 {Casado Dominguez,J (2180)-Romon Poves,R 
(2251) Aragon 2009 0-1 (51)}) 9. h4 Bg4 10. c3 Qd7 11. d4 exd4 12. e5 dxe5 13.
Bxe5 Nxe5 14. Nxe5 Qf5 15. Qa4+ Kf8 16. Nxf7 dxc3 17. Nxc3 Rh7 18. hxg5 Nd7 19.
Nh6 Qxg5 20. Nf7 Rxf7 21. Ne4 Qg7 {Moun,M (2554)-Nay,O (2495) Yangon 1999 0-1})
7... Qxf6 {Black has the pair of bishops} 8. Nbd2 $146 (8. Nc3 Ne7 9. d4 exd4
10. Nb5 Bb6 11. Nbxd4 Bg4 12. c3 Ng6 13. Qa4+ Kf8 14. h3 h5 15. Nh2 Nf4 16. Kh1
Re8 17. f3 Bc8 18. Ne2 Rh6 19. Nxf4 Qxf4 20. Qc2 Rg6 21. Rad1 Re5 22. Rd5 Rxd5
{Ferreira,O (2275)-Sieiro Gonzalez,L (2390) Mexico 1991 0-1}) (8. Nc3 Bb6 $11)
8... O-O $15 9. Re1 Bg4 10. h3 {White threatens to win material: h3xg4} Be6 (
10... Bd7 11. c3 $15) 11. c3 {Secures b4} Rad8 (11... Nd8 12. Qb3 $11) 12. a3 {
Controls b4} (12. Bxe6 Qxe6 13. b4 Bb6 $14) 12... d5 {Black threatens to win
material: d5xc4} (12... Bd7 $142 $11) 13. b4 $4 {White has let it slip away} (
13. exd5 Bxd5 14. Ne4 Bxe4 15. Rxe4 $16) 13... Bb6 $4 {overlooking an easy win}
(13... dxc4 $142 {ends the debate} 14. bxc5 Rxd3 $19 (14... cxd3 $6 15. Rb1 $19
)) 14. Bb5 $4 {White lets it slip away} (14. exd5 $142 $5 Bxd5 15. Bxd5 Rxd5
16. c4 Rxd3 17. c5 Bxc5 18. bxc5 $16) 14... a6 (14... Qg6 $5 {might be a
viable alternative} 15. Kf1 f6 $15) 15. Bxc6 $11 bxc6 16. c4 (16. exd5 $142 $5
{is noteworthy} cxd5 17. Rxe5 $11) 16... dxc4 $17 17. dxc4 Bxc4 $1 {Deflection:
d2.} 18. Rc1 (18. Nxc4 Rxd1 {Deflection Pinning}) 18... Bd3 19. Qa4 Bb5 20. Qc2
a5 21. a4 {White threatens to win material: a4xb5} Ba6 22. Qxc6 $2 (22. Nb3 $5
axb4 23. a5 $15) 22... Rd6 (22... Rxd2 23. Qxf6 Bxf2+ 24. Kh2 gxf6 25. Nxd2
Bxe1 26. Rxe1 axb4 27. Nb3 $19) 23. Qc3 (23. Qc2 $142 axb4 24. Nc4 Bxc4 25.
Qxc4 $17) 23... Rfd8 $4 {weakening the position} (23... Rd3 24. Qb2 Rfd8 25.
Red1 $19) 24. Red1 $4 (24. bxa5 Bxf2+ 25. Kxf2 Rxd2+ 26. Kg1 Rxg2+ 27. Kxg2 $17
) 24... Be2 $19 25. Qxe5 $4 {an oversight. But White was lost anyway.} (25.
bxa5 Bxf3 26. axb6 Bxd1 27. bxc7 Rxd2 28. cxd8=Q+ Rxd8 29. a5 $19) 25... Qxe5
26. Nxe5 Bxd1 27. Nec4 (27. Ndc4 {does not help much} Re6 28. bxa5 Ba7 $19)
27... Rc6 (27... Rxd2 $142 {finishes off the opponent} 28. Nxd2 Rxd2 29. bxa5
Bxf2+ 30. Kh2 $19) 28. b5 (28. Rb1 {doesn't get the bull off the ice} axb4 29.
a5 Ba7 30. Rxb4 Be2 $19) 28... Rc5 29. Kf1 (29. Ra1 $19 {otherwise it's
curtains at once}) 29... Rxd2 $1 {Deflection: c4} 30. Ke1 (30. Nxd2 Rc2 {
Decoy Double attack} (30... Rxc1 {Deflection Pinning})) 30... Rd4 31. Nxb6 Rxc1
32. Nd5 Bf3# (32... Bg4#) 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.24"]
[Round "5.1"]
[White "Yamaguchi, Tosei"]
[Black "Hasegawa, Emi"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "1940"]
[BlackElo "1417"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "65"]
[EventDate "2024.03.23"]

{D35: Queen's Gambit Declined: Exchange Variation} 1. d4 Nf6 2. c4
e6 3. Nf3 d5 4. cxd5 exd5 5. Nc3 Be7 6. Bf4 c6 7. Qc2 Nbd7 8. h3 O-O 9. e3 Re8
10. Bd3 a6 (10... c5 11. dxc5 Nxc5 12. O-O Nxd3 13. Qxd3 a6 14. Rac1 Be6 15.
Ne2 Qa5 16. Rc7 Qxa2 17. Rxb7 Qc4 18. Rd1 Ne4 19. Rc7 Qxd3 20. Rxd3 Rac8 21.
Nfd4 Rxc7 22. Bxc7 Rc8 23. Be5 Nd6 24. Rb3 Nc4 25. Rb7 {Gagunashvili,M (2596)
-De Ramos,J (2368) Manila 2010 1-0 (69)}) 11. O-O Nf8 12. Rab1 $146 (12. Ne5
Bd6 13. Bh2 Ng6 14. f4 c5 15. Kh1 c4 16. Bf5 b5 17. a3 Qb6 18. Bxc8 Raxc8 19.
Qf5 a5 20. Nxd5 Qd8 21. Nxf6+ Qxf6 22. Qd7 b4 23. axb4 Red8 24. Qb5 Bxb4 25.
Nxc4 Qe6 26. b3 Qe4 {Gvanceladze,A (2183)-Kharmunova,N (2196) Moscow 2013 1-0 
(31)}) 12... Ng6 13. Bh2 Bd7 14. b4 b6 15. Ne5 (15. a4 $142 $16) 15... c5 $2 (
15... Bd6 $142 {would keep Black alive} 16. Nxd7 Bxh2+ 17. Kxh2 Qxd7 $14) 16.
Nxd7 $18 (16. Bxg6 $6 hxg6 17. Nxd7 Qxd7 $16) 16... Qxd7 17. Na4 Qc6 $2 (17...
Bd6 18. Bxd6 Qxd6 19. bxc5 bxc5 $18) 18. bxc5 b5 19. Nb6 Ra7 20. a4 bxa4 21.
Qxa4 Qxa4 22. Nxa4 Ne4 (22... a5 {does not improve anything} 23. Rfc1 $18) 23.
Rb2 (23. Bxe4 {might be the shorter path} dxe4 24. c6 Bd8 $18) 23... Bf6 (23...
a5 {does not solve anything} 24. Nb6 $18) 24. Rfb1 (24. c6 {seems even better}
Ne7 25. c7 Nc8 $18) 24... Raa8 (24... Ne7 $18 {a last effort to resist the
inevitable}) 25. Rc2 (25. Nb6 {seems even better} Nxc5 26. Nxa8 Nxd3 $18) 25...
Bd8 26. c6 Ba5 27. Bxe4 Rxe4 (27... dxe4 {cannot change destiny} 28. c7 $18)
28. Rc5 Bd8 29. c7 Bxc7 30. Rxc7 h5 (30... Re6 {a fruitless try to alter the
course of the game} 31. Rbb7 Rae8 32. Nc3 $18) 31. Rbb7 Rf8 (31... Rae8 {
the last chance for counterplay} 32. Nc3 R4e7 $18) 32. Nc5 Ree8 33. Bd6 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.24"]
[Round "5.2"]
[White "Takeuchi, Hiroshi"]
[Black "Shinoda, Taro"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "1388"]
[BlackElo "1911"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "68"]
[EventDate "2024.03.23"]

{A47: 1 d4 Nf6 2 Nf3 b6: Torre, London and Colle Systems} 1. d4 Nf6
2. Bf4 e6 3. Nf3 c5 4. c3 b6 5. e3 Bb7 6. Nbd2 d6 (6... cxd4 7. exd4 (7. cxd4
Be7 8. h3 O-O 9. Bd3 d6 10. O-O Nc6 11. Bh2 Rc8 12. a3 Re8 13. Rc1 Bf8 14. e4
e5 15. d5 Nb8 16. Qe2 g6 17. Qe3 Qd7 18. Nb1 Ba6 19. Bxa6 Nxa6 20. b4 Nc7 21.
Nbd2 Qa4 {Ozkan,E (2227)-Kinsiz,O (2166) Konya 2012 0-1 (70)}) 7... d6 8. h3 a6
9. Bd3 Be7 10. O-O O-O 11. Re1 Nbd7 12. a4 Re8 13. Qb3 Qc7 14. Re2 Bf8 15. Rae1
Qc6 16. Ne4 Nxe4 17. Bxe4 Qc7 18. Bxb7 Qxb7 19. c4 Nf6 20. Bg5 Be7 21. Qd3 {
Bagirov,R (2484)-Kovalyov,A (2557) ICC INT 2009 1-0 (81)}) 7. Bd3 cxd4 8. cxd4
Be7 $146 (8... Nbd7 9. Qe2 Nd5 10. Bg5 Be7 11. Bxe7 Qxe7 12. Ba6 Bxa6 13. Qxa6
O-O 14. O-O Rfc8 15. Rfc1 Qd8 16. Ne4 N7f6 17. Rxc8 Qxc8 18. Qxc8+ Rxc8 19.
Nxd6 Rc2 20. Ne5 a6 21. Ndxf7 Kf8 {1/2-1/2 (21) Prie,E (2491)-David,V (2399)
Pornic 2009}) 9. Rc1 Nbd7 (9... Nc6 10. O-O $11) 10. h3 {Covers g4} h6 {
Controls g5} (10... Rc8 11. Rxc8 Qxc8 12. O-O $11) 11. O-O O-O 12. Qb3 (12. Bg3
Rc8 $14) 12... Rc8 (12... e5 13. dxe5 dxe5 14. Nxe5 $11) 13. Bh2 Rxc1 14. Rxc1
Qa8 15. Qb4 Rd8 16. Rc7 $4 {allows the opponent back into the game} (16. Qa3
$142 $14 {was a good chance to save the game}) 16... Nd5 $19 17. Qa3 (17. Qc4
Nxc7 18. Qxc7 $19) 17... Nxc7 18. Bxd6 Bxd6 19. Qxd6 Ne8 20. Qe7 Nef6 21. b3
Re8 22. Qd6 Qb8 23. Qb4 Nd5 24. Qb5 (24. Qa3 {does not save the day} Rc8 $19)
24... N7f6 (24... Rc8 {keeps an even firmer grip} 25. Bf1 Rc1 26. e4 $19) 25.
Ne5 (25. Qa4 {cannot undo what has already been done} a6 $1 $19 {the knockout
punch}) 25... a6 (25... Rc8 {and Black can already relax} 26. Qa4 Rc1+ 27. Nf1
$19) 26. Qa4 b5 27. Qa3 Qc7 28. Ndf3 (28. Ne4 {cannot change what is in store
for White} Nxe4 29. Bxe4 Rc8 $19) 28... Rc8 29. Kh2 Nb6 (29... Nd7 $142 {
keeps an even firmer grip} 30. Kg1 Qc1+ 31. Qxc1 Rxc1+ 32. Kh2 Nxe5 33. Nxe5
$19) 30. Qb4 (30. Bf1 {doesn't do any good} Ne4 31. Kg1 Nd5 $19) 30... Nbd7 (
30... Bxf3 $142 {makes it even easier for Black} 31. gxf3 Nfd5 $19) 31. g3 (31.
Kg1 $19 {no good, but what else?}) 31... Nxe5 32. Nxe5 Qc1 33. g4 Qh1+ 34. Kg3
Qg2+ (34... Qg2+ 35. Kh4 Qxf2#) 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.24"]
[Round "5.3"]
[White "Nishimori, Toshiyuki"]
[Black "Sugimoto, Koichi"]
[Result "0-1"]
[ECO "B72"]
[WhiteElo "1570"]
[BlackElo "1864"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "62"]
[EventDate "2024.03.23"]

{[%mdl 8256] B72: Sicilian Dragon: 6 Be3, lines with h3+Bc4 and sidelines} 1.
e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. h3 Bg7 7. Be3 O-O 8. Qd2
Nc6 (8... a6 9. g4 b5 10. Bg2 Bb7 11. O-O Nbd7 12. e5 dxe5 13. Ne6 fxe6 14.
Bxb7 Rb8 15. Bg2 e4 16. Rad1 Ne5 17. Qxd8 Rbxd8 18. Nxe4 {1/2-1/2 (18) Mokry,K
(2485)-Georgiev,K (2590) Warsaw 1987}) (8... d5 9. e5 Ne4 10. Nxe4 dxe4 11. Bf4
Nc6 12. Nxc6 bxc6 13. Qc3 Be6 14. Be2 Qb6 15. O-O Rad8 16. Rad1 Rd5 17. b3 Rfd8
18. Qa1 Qa5 19. c4 Rxd1 20. Bxd1 h6 21. h4 Bf5 22. Qb2 e3 23. fxe3 {Musaev,R 
(2281)-Emiroglu,C (2356) Olomouc 2014 1/2-1/2 (34)}) 9. Be2 $146 (9. O-O-O Nxd4
(9... d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 e5 13. Bc5 Be6 14. Bc4 Nxc3 15.
Qxc3 Qg5+ 16. Be3 Qxg2 17. Bxe6 fxe6 18. Qc4 Kh8 19. h4 Rad8 20. Qxe6 Qe4 21.
Qe7 Rde8 22. Qc5 Rd8 23. Qe7 Rde8 24. Qd6 {Thomas,I (2325)-Palkovi,J (2320)
Oakham 1986 1-0 (46)}) 10. Bxd4 Be6 11. g4 Qa5 12. a3 Rfc8 13. g5 Ne8 14. Bxg7
Nxg7 15. Nd5 Qxd2+ 16. Rxd2 Bxd5 17. exd5 Rc5 18. Be2 Rac8 19. Kb1 b5 20. b4
Rc3 21. Bxb5 Rxa3 22. Rd3 Rxd3 23. Bxd3 Rb8 {Vela,N (2215)-Braga,C (2390)
Mexico City 1977 1-0 (52)}) (9. Nf3 Bd7 10. g4 b5 11. Bxb5 Qb8 12. a4 a6 13.
Bd3 Be6 14. Rb1 Rc8 15. O-O d5 16. Bf4 Qb7 17. e5 Nd7 18. Rfe1 Qb4 19. Bf1 Nc5
20. Bg2 Nxa4 21. Nxa4 Qxa4 22. b3 Qb5 23. c3 a5 {Arakhamia Grant,K (2443)
-Socko,M (2479) Amsterdam 2011 0-1 (50)}) 9... Bd7 10. g4 Rc8 (10... Nxd4 11.
Bxd4 Bc6 12. f3 $11) 11. g5 Nh5 12. Bxh5 gxh5 13. f4 {Black has a cramped
position} Na5 14. b3 {Secures a4+c4} b5 (14... Nc6 15. O-O-O Qa5 16. Kb2 $11)
15. f5 (15. O-O-O Nc6 16. Ncxb5 Nxd4 17. Nxd4 a5 $16) 15... b4 (15... Nb7 $5
$16) 16. Nd5 e6 (16... Nc6 17. O-O-O Bxd4 18. Bxd4 Nxd4 19. Qxd4 $18) 17. Nf6+
$1 $18 {a devastating blow} (17. Nxb4 $6 exf5 18. exf5 Bxd4 19. Bxd4 Re8+ 20.
Kf2 Nc6 21. Nxc6 Bxc6 $16) 17... Bxf6 18. gxf6 Qxf6 19. Bg5 Qe5 20. Rg1 Kh8 (
20... Qxe4+ $4 {Black will choke on that pawn} 21. Kd1 Qh1 22. Rxh1 $18) 21.
Qe3 $4 {gives the opponent counterplay} (21. O-O-O $142 Nc6 22. Bh4 Nxd4 23.
Qxd4 $18) 21... exf5 $15 22. Kd2 $4 (22. O-O-O f6 (22... fxe4 23. Bh4 f6 24.
Qh6 $18) 23. Bf4 Qxe4 $11) 22... f6 $4 {throwing away the advantage} (22...
fxe4 $142 {and Black can already relax} 23. Raf1 f6 $19) 23. Bh6 $17 Rg8 (23...
Rf7 24. exf5 Nc6 25. Qxe5 fxe5 26. Nxc6 Rxc6 27. Rg5 Bxf5 28. Rf1 $17) 24.
Rxg8+ (24. exf5 $5 {must be considered} Nb7 25. Rxg8+ Rxg8 26. Rg1 Qxe3+ 27.
Bxe3 $15) 24... Rxg8 $17 25. Rg1 Qh2+ (25... fxe4 $2 {doesn't work} 26. Rxg8+
Kxg8 27. Qg1+ Bg4 28. hxg4 $18) 26. Ne2 Rxg1 27. exf5 $4 {shortens the misery
for White.} (27. Bf4 $142 Qh1 $1 {Mate threat} 28. Qxg1 Qxg1 29. Nxg1 $17)
27... Bb5 (27... Rg2 $142 {seems even better} 28. Qe7 Rxe2+ 29. Qxe2 Qxe2+ 30.
Kxe2 Bxf5 $19) 28. c4 (28. Qxg1 {is one last hope} Qxe2+ 29. Kc1 Qf1+ 30. Qxf1
Bxf1 31. h4 $19) 28... bxc3+ 29. Kxc3 Bxe2 (29... Rg2 $5 {might be the shorter
path} 30. Qe7 Qe5+ 31. Qxe5 dxe5 32. b4 $19) 30. Qe8+ Rg8 31. Qe6 (31. Bg7+ {
there is nothing else anyway} Kxg7 32. Qe7+ Kh6 33. Qxf6+ Rg6 34. fxg6 Qg3+ 35.
Kd2 Qd3+ 36. Kc1 Qe3+ 37. Kb2 Qe5+ 38. Qxe5 dxe5 39. gxh7 Kxh7 40. h4 $19)
31... Qe5+ (31... Qe5+ 32. Qxe5 dxe5 $19) 0-1

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.24"]
[Round "5.4"]
[White "Kawamura, Takuto"]
[Black "Aoki, Yasuhiro"]
[Result "1/2-1/2"]
[ECO "E67"]
[WhiteElo "1601"]
[BlackElo "1598"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "70"]
[EventDate "2024.03.23"]

{E67: King's Indian: Fianchetto: 6...Nbd7} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2
O-O 5. O-O d6 6. c4 c6 7. Nc3 Nbd7 8. e4 Qc7 {Black has a cramped position.
Black's piece can't move: c8} (8... Qa5 9. Rb1 Qa6 10. e5 Ne8 11. exd6 exd6 12.
b3 Ndf6 13. Re1 Qa5 14. b4 Qh5 15. Ne2 Bg4 16. Rb3 Qf5 17. Nf4 g5 18. Ne2 h6
19. Nd2 Qd7 20. Nf1 d5 21. c5 a5 22. bxa5 Rxa5 23. a3 {Greenfeld,A (2570)
-Godes,D (2312) Tel Aviv 2001 1-0 (45)}) 9. Qe2 $146 (9. Be3 a6 10. a4 c5 11.
Rc1 Rb8 12. h3 cxd4 13. Nxd4 Nc5 14. b4 Ne6 15. Nd5 Qd8 16. Re1 Nxd5 17. exd5
Nxd4 18. Bxd4 Bxd4 19. Qxd4 b6 20. c5 bxc5 21. bxc5 Qa5 22. Rxe7 Rb4 23. Qe3
dxc5 {Jankovec,I (2320)-Radojevic,Z (2205) Decin 1973 1-0 (37)}) (9. b3 e5 10.
Bb2 Re8 11. Re1 (11. d5 a6 12. Rc1 Nc5 13. Qc2 a5 14. Ne1 Bh6 15. Rd1 Bd7 16.
Nd3 cxd5 17. Nxc5 dxc5 18. cxd5 b5 19. a4 b4 20. Nb1 Rac8 21. Nd2 Bxd2 22. Qxd2
c4 23. bxc4 Qxc4 24. f4 Nxe4 25. Qe3 Nc3 {Kaspret,G (2315)-Weiss,L (2190)
Austria 1994 0-1 (38)}) 11... Nf8 12. h3 a5 13. Qd2 Ne6 14. Rad1 Nd7 15. d5 Nd4
16. dxc6 bxc6 17. Nxd4 exd4 18. Na4 c5 19. e5 Ra6 20. exd6 Rxe1+ 21. Rxe1 Rxd6
22. Qg5 d3 23. Re8+ Bf8 {Korpa,B (2417)-Kanyadi,Z (2158) Hungary 2015 1-0}) (9.
d5 Nb6 10. c5 dxc5 11. Bf4 Qd8 12. dxc6 bxc6 13. Qc2 Be6 14. Rfd1 Qc8 15. a4 h6
16. a5 Nbd7 17. Na4 Qb7 18. Ra3 Qb4 19. Nc3 g5 20. Bd2 Qb7 21. a6 Qc8 22. e5
Nh7 23. Re1 g4 {Vombek,D (2270)-Stucl,B (2285) Austria 1994 1-0 (44)}) 9... e5
10. d5 cxd5 11. cxd5 a6 {Consolidates b5} (11... b6 12. Bg5 $11) 12. Bd2 b5 13.
b4 (13. b3 $5 $14 {deserves consideration}) 13... Nb6 $11 14. Rac1 Qb7 15. h3 {
White has an active position} (15. Nb1 Bg4 $11) 15... Nc4 $15 {Praise the
knight!} 16. Bg5 h6 17. Bxf6 Bxf6 {Black has the pair of bishops} 18. Rc2 Bd7
19. Rfc1 Rac8 (19... a5 20. bxa5 Na3 21. Rb2 $17) 20. Nd1 $15 Kh7 21. Ne3 Nxe3
22. Qxe3 Rxc2 23. Rxc2 Rc8 {Black threatens to win material: Rc8xc2} 24. Qd3
Rxc2 25. Qxc2 Qc8 26. Qxc8 {White forks: a6+d7} Bxc8 {A minor pieces endgame
occured} 27. Nd2 Bg5 {Black threatens to win material: Bg5xd2} 28. Nb3 Bd8 29.
Kf1 f5 {Playing against the pawn chain} 30. f3 Kg7 31. Ke2 Kf6 32. Ke3 Bb6+ 33.
Ke2 f4 {This push gains space} 34. g4 Kg5 35. Na1 (35. Na5 Bd7 $15) 35... Bd7
1/2-1/2

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.24"]
[Round "5.5"]
[White "Miyatani, Ryohei"]
[Black "Yoshii, Yukihiko"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "1313"]
[BlackElo "1644"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "51"]
[EventDate "2024.03.23"]

{[%mdl 8256] B12: Caro-Kann: Advance Variation} 1. e4 c6 2. d4 d5 3. e5 Bf5 4.
c4 e6 5. Nf3 $146 (5. a3 dxc4 (5... Ne7 6. Nc3 Nd7 7. Be3 (7. Nf3 Bg4 8. Be3
Nf5 9. cxd5 cxd5 10. h3 Bh5 11. Bd3 Bg6 12. Bf4 a6 13. h4 Ne7 14. h5 Bxd3 15.
Qxd3 h6 16. O-O Rc8 17. Rfc1 Nb6 18. b3 Nc6 19. Bd2 Be7 20. Ne2 Kd7 21. Ne1 Qg8
{Zhigalko,A (2572)-Rodshtein,M (2660) Jerusalem 2015 0-1 (56)}) 7... Bg6 8. Nf3
dxc4 9. Bxc4 Nb6 10. Bb3 Nf5 11. O-O Be7 12. h3 O-O 13. Qe2 Nd5 14. Nxd5 cxd5
15. Rac1 Qb6 16. Rc3 Rfc8 17. Rfc1 Qd8 18. Qb5 Rxc3 19. Rxc3 Nxe3 20. fxe3 {
Najer,E (2663)-Riazantsev,A (2671) Sochi 2015 1/2-1/2 (71)}) (5... Nd7 6. cxd5
cxd5 7. Nf3 Ne7 8. Nc3 Nc6 9. Bg5 Be7 10. Bxe7 Qxe7 11. Bb5 Bg4 12. Qa4 Bxf3
13. gxf3 O-O 14. Bxc6 bxc6 15. Qxc6 Rab8 16. Na4 Rfc8 17. Qd6 Qg5 18. Qxd7 Rc2
19. Rd1 Qg2 20. Rd2 {Lematschko,T (2285)-Brunner,L (2495) Switzerland 1994 0-1}
) 6. Bxc4 Ne7 7. Nc3 Nd5 8. Nge2 Be7 9. Ng3 Nxc3 10. bxc3 Bg6 11. O-O Nd7 12.
f4 Nb6 13. Bb3 Qd7 14. Qf3 O-O 15. a4 Rad8 16. Bd2 Nd5 17. c4 Nc7 18. Be3 f5
19. exf6 Bxf6 {Smerdon,D (2472)-Retera,J (2281) Netherlands 2006 1-0 (56)})
5... h6 {Prevents intrusion on g5} 6. Nc3 Bb4 7. h3 {Prevents intrusion on g4}
(7. Qb3 a5 $16) 7... dxc4 8. Bxc4 {White has a new backward pawn: d4. Black is
behind in developement} Ne7 9. O-O O-O {Black has a cramped position} 10. g4 {
White threatens to win material: g4xf5} Bh7 11. Bd3 (11. Qb3 a5 $14) 11... Bxd3
$11 12. Qxd3 {Black has a cramped position} Ng6 13. g5 hxg5 14. Bxg5 (14. Nxg5
c5 15. Qf3 cxd4 $16) 14... Be7 {Black threatens to win material: Be7xg5} (14...
Nxe5 15. Nxe5 Qxg5+ 16. Qg3 $17) 15. Ne4 (15. h4 Nd7 (15... Nxh4 $143 16. Bxh4
Bxh4 17. Kg2 $16) 16. Qe4 Re8 $14) 15... Nd7 (15... Nxe5 $5 16. Nxe5 Bxg5 $15)
16. Bxe7 Qxe7 17. Neg5 (17. Nfg5 f5 18. exf6 Nxf6 $11) 17... f5 (17... c5 $5
$15 {is interesting}) 18. Qb3 $11 {White threatens to win material: Qb3xe6.
White forks: e6+b7} Nf4 19. Kh2 (19. Qxb7 $5 {looks like a viable alternative}
Rfc8 20. Qa6 $14) 19... Nb6 $15 20. Rg1 g6 $4 {gives away a clear win} (20...
Nbd5 $142 $15 {would hold out}) 21. Nxe6 $1 $18 {Decoy: e6} Nxe6 (21... Qxe6
22. Rxg6+ Nxg6 (22... Kf7 23. Rxe6 {Combination}) (22... Kh7 23. Rxe6 {
Combination}) (22... Kh8 23. Rxe6 {Combination}) 23. Qxe6+ {Overloading Decoy
Deflection Double attack}) (21... Nxe6 22. Rxg6+ {Decoy Double attack}) 22.
Rxg6+ Kh7 23. Rxe6 Qg7 24. Rg1 Qc7 25. Ng5+ Kg7 26. Nf7+ $1 {Decoy: f7} (26.
Nf7+ Kxf7 27. Rf6+ Ke8 28. Qe6+ Qe7 29. Rxf8+ Kxf8 30. Rg8#) 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.24"]
[Round "5.6"]
[White "Kuramoto, koutarou"]
[Black "Furuse, Mizuki"]
[Result "1/2-1/2"]
[ECO "A57"]
[BlackElo "1157"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "85"]
[EventDate "2024.03.23"]

{A57: Benko/Volga Gambit} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5.
Nc3 g6 6. e4 d6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Nbd7 (9... Qb6 10. a4 axb5 11.
Bxb5 Ba6 12. Nd2 Ne8 13. Nc4 Qb7 14. Bxa6 Rxa6 15. Bg5 h6 16. Bd2 Nc7 17. a5
Nd7 18. Qa4 Qc8 19. Nb5 Kh7 20. Bc3 f5 21. Bxg7 Kxg7 22. Nxc7 Qxc7 23. exf5
Rxf5 24. Qb5 {Lokander,M (2306)-Milchev,N (2422) Vaxjo 2014 1-0 (40)}) 10. Qc2
$146 (10. a4 axb5 11. Bxb5 Ba6 12. Bg5 Qb6 13. Qe2 Rfb8 14. Nd2 Nf8 15. Nc4 Qc7
16. f4 Bb7 17. Rad1 Rd8 18. Qf3 Kh8 19. e5 Ng8 20. exd6 Rxd6 21. Nxd6 exd6 22.
f5 f6 23. Bf4 gxf5 24. Bc6 Bxc6 {Orlov,G (2500)-Pupols,V (2210) Seattle 1992
1-0 (31)}) 10... Ng4 11. h3 Nge5 12. Nxe5 Nxe5 13. f4 Nd7 14. Be3 (14. a4 axb5
15. Nxb5 f5 $16) 14... axb5 15. f5 {White has a very active position} (15. Nxb5
f5 16. e5 Ba6 $16) 15... Ne5 {The knight likes it on e5} (15... b4 $5 {is an
interesting alternative} 16. Nb5 Ne5 $11) 16. fxg6 hxg6 17. Qd2 {Black has a
cramped position} (17. Bxb5 $142 {would allow White to play on} Qc7 18. a4 $14)
17... b4 $15 {Black threatens to win material: b4xc3} 18. Nd1 (18. Nb5 Bd7 19.
a4 bxa3 20. Rxa3 Rxa3 21. Nxa3 Qb6 $17) 18... Ba6 $17 19. Bxa6 Rxa6 20. Bh6 Qc7
21. Bxg7 Kxg7 22. Ne3 Rfa8 23. Nf5+ $4 {leads to further unpleasantness} (23.
b3 f6 $17) 23... Kf8 {Loses material} (23... gxf5 $142 {and Black has triumphed
} 24. Rxf5 c4 $19 (24... Rxa2 25. Rxa2 Rxa2 26. Rh5 $18)) 24. Qh6+ $15 Ke8 25.
Ng7+ Kd7 26. a3 $2 (26. Rxf7 $142 $1 {and White hangs on} c4 27. Kh2 $15) 26...
Qb6 27. Kh2 bxa3 (27... c4 $5 28. Rab1 $19) 28. bxa3 Rc8 $4 {with this move
Black loses his initiative} (28... Qa7 29. Qh4 Rb6 30. a4 $19) 29. Rfb1 $4 {
White loses the upper hand} (29. Rab1 $142 {and White is still in the game} Qa7
30. Rxf7 Nxf7 31. Qxg6 $11) 29... Qc7 $17 30. Rb3 (30. Qg5 c4 $19) 30... Raa8 (
30... c4 $5 31. Rb2 c3 32. Rc2 $19) 31. Rab1 $17 Rab8 32. Rxb8 Rxb8 33. Rxb8
Qxb8 34. Qd2 (34. Qe3 e6 35. dxe6+ fxe6 $19) 34... Qb5 (34... e6 35. dxe6+ fxe6
36. Qh6 $19) 35. Qc2 $2 (35. Qh6 $142 $17) 35... Qc4 $4 {a transit from better
to worse} (35... Qa5 $142 $19 {and Black gets the upper hand}) 36. Qb2 $11 Qa6
37. Qb8 Qc8 38. Qa7+ Kd8 39. Qa5+ Qc7 {Black threatens to win material: Qc7xa5}
40. Qb5 {White has a mate threat} (40. Qa8+ Qc8 41. Qa5+ Qc7 42. Qa8+ Qc8 43.
Qa5+ $11) 40... Nd7 (40... Kc8 41. Ne8 Qd8 42. Kg1 $15) 41. Qf1 {White
threatens to win material: Qf1xf7} Ne5 42. Qb5 {Twofold repetition} Nd7 43. Qf1
1/2-1/2

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.24"]
[Round "5.7"]
[White "Nakamura, Mitsuru"]
[Black "Ono, Yukiko"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "1406"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "65"]
[EventDate "2024.03.23"]

{D20: Queen's Gambit Accepted: 3 e3 and 3 e4} 1. d4 d5 2. c4 dxc4
3. e3 Nf6 4. Nc3 Be6 5. Qa4+ $146 (5. Nf3 h6 6. Ne5 (6. e4 c6 7. a4 Nbd7 (7...
g6 8. Ne5 Bg7 9. Bxc4 Bxc4 10. Nxc4 O-O 11. O-O Na6 12. Be3 Qd7 13. Ne5 Qd6 14.
Qb3 Qb4 15. Qa2 e6 16. f4 c5 17. Rad1 Rad8 18. d5 exd5 19. exd5 Nd7 20. Nxd7
Rxd7 21. f5 Re8 22. Rf4 {Volkmann,F (2410)-Pitl,G (2377) Austria 2012 1/2-1/2 
(32)}) 8. d5 Bg4 9. Bxc4 Ne5 10. Be2 Nxf3+ 11. Bxf3 Bxf3 12. Qxf3 cxd5 13. exd5
g6 14. O-O Bg7 15. Bf4 O-O 16. d6 exd6 17. Qxb7 Qb8 18. Qxb8 Rfxb8 19. Rab1 Ne8
20. Nd5 g5 {Hracek,Z (2624)-Zubov,A (2581) Warsaw 2009 1/2-1/2 (49)}) 6... c5
7. Qa4+ Nbd7 8. d5 Nxd5 9. Bxc4 Nxc3 10. Bxe6 fxe6 11. bxc3 g5 12. Rb1 Bg7 13.
Nxd7 Qxd7 14. Qxd7+ Kxd7 15. Rxb7+ Kc6 16. Rxe7 Bxc3+ 17. Ke2 Rhe8 18. Rh7 Rh8
19. Re7 Rhe8 {Georgiev,K (2623)-Godena,M (2502) Jerusalem 2015 0-1 (45)}) (5.
Nf3 c6 $11) 5... Nc6 (5... Qd7 $5 $15) 6. Bxc4 $11 Bg4 (6... Bxc4 7. Qxc4 e6 8.
a3 $11) 7. h3 (7. d5 $142 a6 8. h3 $16) 7... Bf5 $4 (7... Bd7 $142 $14) 8. b4 (
8. d5 $142 {and White wins} a6 9. dxc6 $18) 8... e5 $15 9. dxe5 (9. Nf3 $142
Bxb4 10. Bd2 $15) 9... Be7 $4 {letting the wind out of his own sails} (9...
Bxb4 $142 10. Bd2 Nd7 $17) 10. exf6 $18 Bxf6 (10... Bxb4 11. Bb2 Qxf6 12. Nge2
$18) 11. Nge2 O-O 12. O-O Ne5 13. Bb2 (13. Rd1 $142 {and White has it in the
bag} Qe8 14. Qb3 Nxc4 15. Qxc4 $18) 13... Nxc4 $17 14. Qb3 (14. Bc1 $142 $17)
14... Nxb2 (14... Nd2 $142 {would have made live much easier for Black} 15. Qa3
Nxf1 16. Rxf1 c6 $19) 15. Qxb2 $15 Bd3 (15... Be6 $5 $15 {has some apparent
merit}) 16. Rad1 $14 Bxe2 $2 (16... a5 17. bxa5 c5 $14 (17... Rxa5 $2 18. Nf4
Bxf1 19. Rxd8 Rxd8 20. Qb4 $18 (20. Kxf1 $6 Rc5 $14))) 17. Rxd8 $18 (17. Qxe2
$6 Qe8 18. Nd5 Bd8 $14) 17... Raxd8 (17... Rfxd8 18. Qxe2 Bxc3 $18) 18. Re1 (
18. Qxe2 $142 {a shame that White overlooked this excellent chance} Bxc3 19.
Qb5 $18) 18... Bd3 19. Qb3 c6 20. a4 b6 (20... Rfe8 21. Rd1 $16) 21. e4 (21. b5
Bxc3 22. Qxc3 c5 $16) 21... Bd4 (21... Rfe8 22. b5 cxb5 23. Nd5 Bxe4 24. Nxf6+
gxf6 25. axb5 $16) 22. e5 (22. Nd5 cxd5 23. Qxd3 dxe4 24. Qxe4 Bc3 $16) 22...
Rfe8 23. e6 fxe6 24. Rxe6 Kf8 $2 (24... Kh8 $142 25. Rxe8+ Rxe8 $16) 25. Rxe8+
$18 (25. Rxc6 $6 {is much weaker} Re1+ 26. Kh2 Bxf2 $14) 25... Rxe8 26. Nd1 (
26. Qd1 $142 {would have given White a clear advantage} Rd8 27. Qf3+ (27. Qxd3
$4 {White should leave the bishop alone} Bxf2+ 28. Kxf2 Rxd3 $19) 27... Bf6 28.
Ne4 Bxe4 29. Qxe4 Rd1+ 30. Kh2 $18) 26... Re1+ $16 27. Kh2 Be5+ 28. g3 (28. f4
$142 $5 Bxf4+ 29. g3 Re2+ 30. Kg1 $16) 28... Be4 $11 29. f3 Re2+ 30. Kg1 Bd4+ (
30... Bf5 $5 {should be examined more closely} 31. Nf2 Rb2 $14) 31. Kf1 $14 {
White threatens to win material: Kf1xe2} Rh2 $4 (31... Bc2 $142 {is just about
the only chance} 32. Qc4 Rd2 $16) 32. fxe4 $18 Rh1+ (32... Rxh3 {cannot change
destiny} 33. Qf3+ Ke7 34. Ne3 Bxe3 35. Qxe3 $18) 33. Ke2 (33. Ke2 Rxh3 34. Qe6
$18) 1-0

[Event "Hokkaido Chess Championship 2024"]
[Site "?"]
[Date "2024.03.24"]
[Round "5.8"]
[White "Shimomura, Kensei"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "1199"]
[BlackElo "1199"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "75"]
[EventDate "2024.03.23"]

{B45: Sicilian Four Knights} 1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4
cxd4 5. Nxd4 Nf6 6. Nxc6 bxc6 (6... dxc6 7. Qxd8+ Kxd8 8. Be3 Bb4 9. f3 e5 10.
O-O-O+ Ke7 11. a3 Bd6 12. Bc4 Be6 13. Bxe6 Kxe6 {1/2-1/2 (13) Bilek,I (2460)
-Plachetka,J (2445) Naleczow 1979}) 7. Bg5 $146 {Black is behind in
developement} (7. Qf3 Be7 8. e5 Nd5 9. Qg3 O-O 10. Bh6 g6 11. Bxf8 Bxf8 12. Ne4
Rb8 13. Bd3 Qa5+ 14. Ke2 Rxb2 15. Rhb1 Qb6 16. Rxb2 Qxb2 17. Rd1 Bg7 18. Qg5
Qxe5 19. Qd8+ Bf8 20. Kf1 Ba6 21. Bxa6 Qxe4 {Yuzhakov,O (2362)-Kopylov,A (2446)
Tiumen 2011 0-1}) (7. Be3 d5 8. exd5 exd5 9. Qd2 Be7 10. Be2 Be6 11. O-O O-O {
1/2-1/2 (11) Bojkov,D (2280)-Petrov,M (2405) Shumen 1997}) (7. a3 Qc7 8. Be2
Bd6 9. Be3 Rb8 10. Rb1 Be5 11. Bd4 O-O 12. Bxe5 Qxe5 13. Qd3 d5 14. exd5 exd5
15. Qg3 Re8 16. Qxe5 Rxe5 17. Kf1 d4 18. Nd1 Bf5 19. Bd3 Rbe8 {0-1 (19) Halasz,
F (2155)-Fusthy,Z (2243) Hungary 2002}) 7... Bb4 8. e5 (8. Qf3 $11) 8... h6 (
8... Qa5 $5 9. exf6 Qxg5 10. fxg7 Qxg7 $15) 9. exf6 (9. Bd2 $5 {must
definitely be considered} Nd5 10. Qg4 $14) 9... hxg5 $11 10. fxg7 Rg8 {Black
threatens to win material: Rg8xg7} 11. Qh5 {White has a king attack} (11. Qf3
$11) 11... Ke7 (11... Qf6 $142 {is the best option Black has} 12. O-O-O d5 $15)
12. Qxg5+ $16 f6 13. Qg3 d5 14. O-O-O Kf7 15. Qe3 Bxc3 $2 (15... Bd6 $142 $16)
16. Qxc3 $18 (16. bxc3 $6 e5 $14) 16... Qb6 17. f4 (17. h4 $142 $5 e5 18. h5
Kxg7 19. Rd2 $18) 17... Rxg7 $16 18. g3 Bb7 19. Be2 c5 20. Rhg1 d4 21. Qc4 (21.
Qa3 Bd5 22. Bf3 Bxf3 23. Qxf3 Rb8 $16) 21... a5 (21... Bd5 22. Qd3 $14) 22. f5
$16 Bd5 23. Qa4 (23. fxe6+ Bxe6 24. Qa4 $16) 23... Bc6 $2 (23... Qb4 24. Qb5
$14) 24. Qc4 (24. fxe6+ Kxe6 25. Qc4+ Bd5 $16) 24... Bd5 25. Qa4 {Twofold
repetition} Kg8 (25... Bc6 26. fxe6+ Kxe6 27. Qc4+ Bd5 28. Qd3 $16) 26. Bc4 (
26. fxe6 $5 Qxe6 27. Bb5 $16) 26... Qb4 $11 27. Qxb4 axb4 28. Bxd5 {White
forks: e6+a8} exd5 {A double rook endgame occured.} 29. Kb1 Rga7 30. c3 $4 (30.
a3 $11) 30... b3 $4 {Black threatens to win material: b3xa2. makes life more
difficult} (30... bxc3 $142 {and Black can celebrate victory} 31. a3 Rb7 $19)
31. axb3 $14 {White has new doubled pawns: b2+b3.} (31. cxd4 $4 {the pawn is
safe and cannot be captured without dire consequences} Rxa2 32. Kc1 c4 $19)
31... Ra1+ $2 (31... c4 $142 {is a viable option} 32. Kc2 cxb3+ 33. Kd3 dxc3
34. Kxc3 Rc8+ 35. Kd3 Rac7 $16) 32. Kc2 $18 Rxd1 $2 (32... R1a5 $18) 33. Rxd1
Re8 (33... Kf7 {is no salvation} 34. cxd4 cxd4 35. Rxd4 $18) 34. cxd4 Re2+ (
34... cxd4 {is still a small chance} 35. Rxd4 Re5 $18) 35. Rd2 Re4 (35... Re7 {
does not improve anything} 36. dxc5 Rd7 37. Kd3 $18) 36. dxc5 d4 37. c6 Re5 38.
Rxd4 (38. Rxd4 Re7 39. Rb4 Re2+ 40. Kd3 Re1 41. c7 Kg7 42. c8=Q Rd1+ 43. Ke2
Re1+ 44. Kxe1 Kh7 45. Rg4 Kh6 46. Qh8#) 1-0

