[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "1.1"]
[White "Ito, Katsuhide"]
[Black "Drakakis, Athanasios"]
[Result "0-1"]
[ECO "B15"]
[WhiteElo "1294"]
[BlackElo "1904"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "80"]
[EventDate "2021.03.27"]

{[%mdl 8256] B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6
} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. h3 (6. Be3 Na6 7.
Qd2 Nc7 8. Bd3 Bd6 9. Ne2 O-O 10. Bf4 Re8 11. Bxd6 Qxd6 12. O-O Be6 13. Qf4
Qxf4 14. Nxf4 Rad8 15. Rfd1 g6 16. c3 Rd6 17. f3 Red8 18. Kf2 Kg7 19. g3 Bc8
20. Be2 f5 {Lauk,U (2410)-Zhuravliov,V (2485) Vilnius 1993 1/2-1/2 (52)}) 6...
Bd6 7. Nf3 O-O 8. Be2 Be6 $146 (8... Re8 9. O-O Nd7 (9... Bf5 10. Be3 Qc7 11.
Qd2 Nd7 12. c4 c5 13. d5 Ne5 14. Nxe5 fxe5 15. b3 b6 16. Rac1 Bg6 17. a3 f5 18.
f3 Re7 19. b4 Rae8 20. bxc5 bxc5 21. Bd1 f4 22. Bf2 e4 23. fxe4 Bxe4 24. Ba4 {
Nozdrin,A (2323)-Kostin,K (2259) Internet 2006 0-1 (40)}) 10. c4 b6 11. Qc2 Qc7
12. Bd3 g6 13. Bd2 c5 14. Rae1 Bb7 15. d5 Ne5 16. Nxe5 fxe5 17. g4 f6 18. Bc3
Rf8 19. Bd2 Rfe8 20. Bh6 Qf7 21. Re3 Bf8 22. Bxf8 Qxf8 23. Qe2 {Prasca Sosa,R 
(2426)-Cardona,F (2152) Cali 2007 1-0 (36)}) (8... Na6 9. O-O Nc7 10. c4 Be6
11. Be3 Qd7 12. Qd2 Rfe8 13. Ne1 Rad8 14. Nc2 Qc8 15. Rad1 Bf5 16. Bd3 Bg6 17.
Bxg6 hxg6 18. Rfe1 g5 19. Qd3 g4 20. Bd2 gxh3 21. Qxh3 Qxh3 22. gxh3 Re6 23.
Kg2 {Vorontsov,N (2390)-Zhuravliov,V (2465) Moscow 1994 0-1 (82)}) 9. O-O Nd7
10. Be3 (10. c4 Re8 $11) 10... Nb6 11. b3 {Prevents intrusion on a4+c4} Nd5 12.
Qd2 (12. Bd2 Re8 $11) 12... Re8 13. c4 Nxe3 14. fxe3 {Black has the pair of
bishops} Qe7 15. c5 {White gets more space} Bc7 (15... Bg3 16. Rac1 $17) 16.
Rad1 (16. Bd3 Bg3 17. e4 Rad8 $15) 16... Bd5 $17 17. Bd3 (17. Bc4 Qxe3+ 18.
Qxe3 Rxe3 19. Bxd5 cxd5 $17) 17... Qxe3+ 18. Qxe3 Rxe3 19. Rde1 $4 {but even a
better move would not have saved the game} (19. Bc4 $142 $17) 19... Rxd3 $19
20. Re7 Rc8 21. Rfe1 (21. Kf2 {cannot change destiny} Kf8 22. Re3 Bg3+ 23. Ke2
Rxe3+ 24. Kxe3 Re8+ 25. Kd3 f5 $19) 21... Be6 22. Nh4 (22. Kf1 {does not win a
prize} Kf8 23. Ke2 Rxb3 24. axb3 Kxe7 $19) 22... g6 (22... Bg3 {and Black can
already relax} 23. Nf3 Bxe1 24. Nxe1 $19) 23. Rf1 (23. Nf3 {doesn't do any good
} Bg3 24. Ra1 Rb8 $19) 23... Kf8 24. Rxe6 fxe6 25. Rxf6+ (25. Nf3 {does not
save the day} Rd8 $19) 25... Ke7 26. Rf1 Rf8 (26... Rxd4 $142 $5 {might be the
shorter path} 27. Nf3 Rd5 28. Rc1 $19) 27. Nf3 Rfxf3 $1 {Double attack: d4/g1}
28. gxf3 (28. Rxf3 Rd1+ {Double attack}) (28. gxf3 Ba5 {Combination}) 28...
Rxd4 (28... Bf4 {keeps an even firmer grip} 29. Kg2 $19) 29. Kf2 (29. Kg2 {
cannot undo what has already been done} Bf4 $19) 29... Rd2+ 30. Ke3 Rxa2 31. f4
(31. Rc1 {doesn't improve anything} Rb2 $19) 31... Rb2 32. Kf3 Rxb3+ 33. Kg4
Rb4 34. Kg5 a5 35. Kh6 Kf6 36. h4 Bxf4+ (36... Rxf4 37. Kxh7 Rxf1 38. Kg8 Rh1
39. Kf8 Rxh4 40. Ke8 Rd4 41. Kf8 Rd8#) 37. Kxh7 Kf5 38. Rg1 a4 39. Rxg6 a3 40.
Rg1 Ra4 (40... Ra4 41. Rh1 a2 42. Rf1 Kf6 43. Ra1 Be5 44. Rf1+ Rf4 45. Rf3 Rxf3
46. Kh8 Kf7+ 47. Kh7 a1=Q 48. h5 Qb1+ 49. Kh6 Bf4#) 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "1.2"]
[White "Yoshii, Yukihiko"]
[Black "Al Jbarat, Thamer Mahmmoud Muhammad "]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "1797"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "88"]
[EventDate "2021.03.27"]

{[%mdl 8192] E20: Nimzo-Indian: 4 g3 and 4 f3} 1. c4 e6 2. d4 Nf6 3. Nc3 c6 (
3... c5 4. dxc5 Qa5 5. a3 Qxc5 6. e3 d6 7. b4 Qc7 8. Bb2 Nbd7 9. Nf3 a6 10. Be2
Be7 11. O-O O-O 12. Qb3 b6 13. Rac1 Bb7 14. Rfd1 {1/2-1/2 (14) Miladinovic,I 
(2611)-Lazic,M (2517) Rome 2005}) (3... d6 4. Bf4 c5 5. e3 g6 6. Be2 Bg7 7. Nf3
O-O 8. d5 exd5 9. cxd5 Nbd7 10. O-O Ne8 11. h3 Qe7 12. Re1 a6 13. a4 Rb8 14.
Ra3 f5 15. Rb3 Nc7 16. Bh2 Re8 17. Nd2 Ne5 18. Bf1 {Sachdev,T (2422)-Udeshi,A 
(2420) Pune 2014 0-1 (65)}) 4. e4 Bb4 $146 {Black has a cramped position.
Black's piece can't move: c8} (4... d5 5. e5 Ng8 6. Nf3 Ne7 7. Bd3 g6 8. O-O
Bg7 9. b4 dxc4 10. Bxc4 b5 11. Bb3 Bb7 12. Ne4 O-O 13. Bg5 Nd7 14. Qd2 Kh8 15.
Qf4 Nb6 16. Qh4 Nbc8 17. Nf6 h5 18. Nxh5 gxh5 19. Qxh5+ {Nguyen,A (2439)
-Dollah,Z (2448) Bandar Seri Begawan 2012 1-0}) 5. Bd3 d5 6. cxd5 cxd5 7. e5 {
White threatens to win material: e5xf6.} Ng8 (7... Ne4 8. Bxe4 dxe4 9. Nh3 $14)
8. Nge2 (8. Qg4 g6 $16) 8... Nc6 9. O-O Nge7 10. Be3 Ng6 11. Rc1 Bd7 (11... O-O
12. a3 Be7 13. g3 $16) 12. a3 (12. f4 O-O $16) 12... Be7 13. Qd2 (13. f4 O-O
$16) 13... a6 {Consolidates b5} 14. b4 {Black has a cramped position} Na7 (
14... O-O $142 $5 $16) 15. f4 $18 Rc8 16. g3 (16. f5 exf5 17. Nxd5 Rxc1 18.
Qxc1 Nc6 $18) 16... b5 (16... Nb5 $5 $16) 17. f5 $18 Nf8 $2 (17... exf5 18.
Nxd5 Nc6 19. Nec3 $18) 18. f6 (18. Nf4 $142 {makes sure everything is clear}
exf5 19. Nh5 $18) 18... gxf6 $16 19. exf6 Bxf6 20. Nf4 Bc6 $4 {shortens the
misery for Black} (20... Be7 $142 $16) 21. Nh5 $18 Be7 22. Ng7+ Kd7 23. Rxf7
Rc7 24. Bf4 Rb7 (24... Kc8 {cannot change what is in store for White} 25. Bxc7
Qxc7 26. Nxd5 exd5 27. Qe2 $18) 25. Qe3 Rg8 26. Qe5 Nc8 (26... Rxg7 {
desperation} 27. Qxg7 h6 $18) 27. Rxf8 (27. Nxd5 Qe8 28. Nf6+ Kd8 29. Ngxe8
Bxf6 30. Qxf6+ Ne7 31. Nc7 Nfg6 32. Rxc6 Kc8 33. Qxe6+ Kb8 34. Nxb5+ Rc7 35.
Rb6+ Ka8 36. Be4+ Nd5 37. Rxc7 axb5 38. Qxd5#) 27... Qxf8 28. Qxe6+ Kd8 29.
Qxc6 Qxg7 30. Qxd5+ (30. Nxd5 Qg4 31. Qxb7 Rg7 32. Qxa6 Nb6 33. Bxb5 Bc5 34.
Rxc5 Qd1+ 35. Kg2 Qe2+ 36. Bxe2 h6 37. Qxb6+ Ke8 38. Rc8+ Kf7 39. Qf6#) 30...
Rd7 31. Qe5 $4 {hands over the advantage to the opponent} (31. Qe6 $5 Bd6 32.
Nd5 Qf7 $18) 31... Bf6 (31... Qxe5 $142 32. Bxe5 Bg5 $16) 32. Qf5 $4 {a weak
move, ruining a winning position} (32. Qe6 $142 {a shame that White overlooked
this excellent chance} Bxd4+ 33. Kg2 $18) 32... Bxd4+ $19 33. Kg2 (33. Kh1 Bxc3
34. Qe4 Qd4 35. Qxd4 Bxd4 $19 (35... Rxd4 $6 36. Rxc3 h5 37. Be3 $14)) 33...
Bxc3 34. Qc5 (34. Qxh7 Bd2 35. Qh4+ Ne7 36. Bxd2 Rxd3 37. Qf4 $19) 34... Rxd3
35. Qf5 (35. Qc6 {does not help much} Re8 36. Rc2 Qe7 $19) 35... Qd7 36. Bg5+ (
36. Qxd7+ {doesn't get the bull off the ice} Kxd7 37. Rc2 Nb6 $19) 36... Ne7 (
36... Rxg5 37. Qxg5+ Ne7 38. Rb1 Rd2+ 39. Qxd2 Qxd2+ 40. Kh3 Qd7+ 41. Kg2 Qd5+
42. Kf2 Qd4+ 43. Kf1 Qd3+ 44. Kf2 Bd4+ 45. Ke1 Qc3+ 46. Kd1 Qf3+ 47. Kd2 Qf2+
48. Kd3 Qe3+ 49. Kc2 Qe2+ 50. Kb3 Qc4#) 37. Qc5 (37. Bxe7+ {doesn't change the
outcome of the game} Kxe7 38. Qxh7+ Rg7 39. Qe4+ Kf8 40. Qa8+ Qe8 41. Rf1+ Rf7
42. Qxe8+ Kxe8 43. Rc1 $19) 37... Rd5 (37... Rxg5 38. Qb6+ Ke8 39. Qb8+ Nc8 40.
Qf4 Qd5+ 41. Kg1 Bd4+ 42. Qxd4 Qxd4+ 43. Kh1 Qe4+ 44. Kg1 Rgxg3+ 45. hxg3 Rxg3+
46. Kf1 Qg2+ 47. Ke1 Re3+ 48. Kd1 Qe2#) 38. Bxe7+ $19 Ke8 39. Qxc3 Kxe7 ({
Worse is} 39... Qxe7 40. Re1 Qxe1 41. Qxe1+ Kd8 42. Qe4 Rd2+ 43. Kh3 $16) 40.
Re1+ Kd8 (40... Kf7 $142 $5 {makes it even easier for Black} 41. Rf1+ Rf5 42.
Rxf5+ Qxf5 43. Qc7+ Kf6 44. Qd6+ Qe6 45. Qd4+ Kg6 46. Qd3+ Kh6 47. Qd2+ Rg5 48.
Kf1 $19) 41. Qf6+ Kc8 42. Rc1+ (42. Qxa6+ {praying for a miracle} Qb7 43. Qxb7+
Kxb7 44. Re7+ Kc6 45. Rxh7 $19) 42... Kb7 43. Re1 (43. Qf3 $19 {hoping against
hope}) 43... Rd2+ 44. Kg1 Qd4+ (44... Qd4+ 45. Qxd4 Rxd4 46. Re7+ Kc6 47. Rxh7
Rg6 $19) 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "1.3"]
[White "Hayashi, Ryota"]
[Black "Takahashi, Ryunosuke"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "0"]
[BlackElo "1657"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "76"]
[EventDate "2021.03.27"]

{[%mdl 8192] C50: Hungarian Defence and Giuoco Pianissimo} 1. e4 e5 2. Nf3 Nc6
3. Bc4 Bc5 4. O-O Nf6 5. Nc3 O-O 6. d3 d6 7. h3 Be6 (7... Na5 8. Bb3 h6 9. Na4
Bb6 10. Nxb6 axb6 11. Ba4 Be6 12. c3 c5 13. Re1 b5 14. Bc2 Nc6 15. a3 d5 16.
exd5 Qxd5 17. Qe2 Rfe8 18. Be3 b6 19. b4 Qd6 20. Nd2 cxb4 21. axb4 Nd5 22. Ne4
{Godena,M (2485)-Van den Doel,E (2547) Mondariz 2000 1-0 (78)}) 8. Bb3 $146 (8.
Bg5 h6 9. Bxf6 Qxf6 10. Nd5 Bxd5 11. Bxd5 Rab8 (11... Kh8) 12. c3 Ne7 13. Bb3
Bb6 14. Nh2 Kh8 15. Kh1 Qh4 16. Nf3 Qf6 17. Nh2 Qh4 18. Nf3 Qf6 19. Nh2 Qh4 {
1/2-1/2 (19) Boros,D (2338)-Halasz,T (2359) Hungary 2011}) 8... Bxb3 9. axb3 h6
{Controls g5} 10. Be3 Bxe3 11. fxe3 a6 {Covers b5} 12. Ne2 d5 13. exd5 Nxd5 14.
Qd2 Nf6 15. e4 Kh7 16. Ng3 g6 {Secures f5+h5} 17. Rad1 Qe7 18. Qc3 Rad8 19.
Rfe1 Qb4 20. Qxb4 Nxb4 21. Rd2 Rfe8 22. Rf1 Kg7 {Black king safety dropped} 23.
Rdf2 Nd7 24. d4 (24. Nh4 $5 {deserves consideration} f6 25. Ra1 $11) 24... exd4
$17 25. Nxd4 Ne5 26. Nf3 Nbc6 (26... Rd7 27. Rc1 $17) 27. Ne2 $15 Nxf3+ 28.
Rxf3 Ne5 {A valuable piece} 29. R3f2 Rd2 30. Nc3 Red8 31. Nd5 Rxf2 32. Rxf2 ({
Inferior is} 32. Kxf2 c6 33. Ne3 Rd4 $17) 32... c6 {Black threatens to win
material: c6xd5} 33. Nc3 b5 34. b4 $2 (34. Kf1 $142 $11 {would keep White alive
}) 34... Rd4 $17 35. Ne2 $2 (35. Na2 $142 $5 $17) 35... Rxb4 $19 36. Nf4 (36.
b3 $19) 36... Rxb2 37. Kh2 (37. c3 {what else?} Rb1+ 38. Rf1 $19) 37... a5 38.
Rd2 (38. Rf1 {does not improve anything} Rxc2 39. Ra1 g5 40. Nh5+ Kg6 $19)
38... a4 (38... a4 39. Ne2 a3 $19) 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "1.4"]
[White "Watanabe, Katsumi"]
[Black "Ikogba, Kelvin"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "1604"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "131"]
[EventDate "2021.03.27"]

{[%mdl 8192] B52: Sicilian: Moscow Variation with 3...Bd7} 1. e4 c5 2. Nf3 d6
3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. O-O g6 6. d4 (6. c4 Bg7 (6... Ne5 7. d3 Bg7 8. Nc3
e6 9. Be3 Nxf3+ 10. Qxf3 Ne7 11. Bg5 O-O 12. Bf6 Bxf6 13. Qxf6 Nc6 14. Qxd8
Rfxd8 15. Rfd1 a6 16. a3 Rab8 17. Rab1 b5 18. cxb5 axb5 19. b4 cxb4 20. axb4
Nd4 21. Kf1 {Todor,R (2161)-Danner,G (2316) Austria 2013 0-1 (45)}) 7. Nc3 Ngf6
8. d4 cxd4 9. Nxd4 O-O 10. b3 a6 11. Bb2 Nc5 12. Qe2 e6 13. Rad1 {1/2-1/2 (13)
Dvalishvili,P (2490)-Gabrielian,A (2494) Moscow 2008}) 6... Bg7 7. c3 Ngf6 $146
(7... Qc7 8. Qe2 (8. Re1 Rc8 9. Na3 a6 10. Bg5 h6 11. Bh4 b5 12. Rc1 c4 13. Nc2
e6 14. Nd2 g5 15. Bg3 Ne7 16. f4 e5 17. fxe5 dxe5 {1/2-1/2 (17) Granberg,N 
(2200)-Nilsson,N (2200) Snekkersten 1977}) 8... a6 9. a4 h6 10. Re1 g5 11. h3
e6 12. Nbd2 Ne7 13. Nf1 Ng6 14. Ng3 O-O-O 15. Nh5 Bf8 16. a5 Be7 17. b4 Nf6 18.
Nxf6 Bxf6 19. e5 dxe5 20. dxe5 Bg7 21. b5 axb5 22. a6 {Keller,M (2183)-Vrban,M
(2319) Bad Wiessee 2005 0-1 (38)}) (7... e6 8. Qa4 cxd4 9. cxd4 Ne7 10. Nc3 a6
11. Bf4 b5 12. Qa3 O-O 13. Qxd6 Nc8 14. Qb4 Ncb6 15. a4 bxa4 16. Nxa4 Nxa4 17.
Qxa4 e5 18. Bg5 f6 19. Be3 exd4 20. Bxd4 Kh8 21. Rfd1 Qe7 22. Bc3 {Petrik,S 
(2170)-Veres,R (2225) Slovakia 1996 1-0 (32)}) (7... Qb6 $5 $11) 8. e5 $16 dxe5
9. dxe5 Ng4 10. Re1 $4 {weakening the position} (10. e6 $142 Nde5 11. Qa4+ Kf8
12. Nbd2 $16) 10... Ngxe5 (10... Ndxe5 11. Na3 Qxd1 12. Rxd1 Nxf3+ 13. gxf3 $17
) 11. Bf4 Nxf3+ (11... O-O 12. Na3 Nc6 13. Qa4 $15) 12. Qxf3 $11 O-O {Black
castles and improves king safety} 13. Nd2 Nf6 (13... e5 14. Be3 b6 $15) 14. Qh3
(14. Rad1 $142 $5 {must definitely be considered} Re8 15. Qxb7 $11) 14... Nh5 (
14... Qb6 15. Nc4 (15. Rxe7 $2 {doesn't work} Nd5 16. Nc4 Qf6 $19) 15... Qa6
16. Ne5 $17) 15. Be3 b6 {Consolidates c5} 16. Nf3 Qc7 17. Ng5 h6 18. Nf3 Kh7
19. g4 Nf4 20. Bxf4 Qxf4 21. Rxe7 Rfe8 $4 {Black loses the upper hand} (21...
Bf6 22. Ree1 $15) 22. Rxe8 $4 {gives the opponent new chances} (22. Rxf7 $142
$1 Qc4 23. Rd1 $14) 22... Rxe8 $17 23. Qg3 Qc4 24. h4 (24. Rd1 $142 $5 Re2 25.
b3 $17) 24... Re2 $19 25. h5 Re4 $4 {throws away a nice position} (25... Rxb2
$142 {Black missed this excellent chance} 26. hxg6+ fxg6 $19) 26. hxg6+ fxg6
27. Nh2 $4 {ruins a clearly superior position} (27. Nd2 $142 {and White gets
the upper hand} Qd5 28. Nxe4 Qxe4 29. Rd1 $18) 27... Be5 (27... Re2 28. Rd1 Qf7
29. b4 cxb4 30. cxb4 Rxa2 31. Nf3 $19) 28. Qg2 $2 (28. Qf3 Bxh2+ 29. Kxh2 Rf4
$17) 28... Bxh2+ (28... Qe2 $5 29. Kh1 $19) 29. Kxh2 $17 Qe6 (29... h5 30. Rd1
Rxg4 31. Rd7+ Kh6 32. Qf3 $17) 30. Rg1 (30. Rd1 $5 $15 {should be considered})
30... h5 $17 31. Qh3 Qe5+ (31... Re2 32. Qf3 hxg4 33. Rxg4 Rxf2+ 34. Qxf2 Qxg4
35. Qf7+ Kh6 36. Qf8+ Kg5 37. Qd8+ Kf4 38. Qd3 $17) 32. Kh1 Qe6 33. f3 (33. Kh2
$5 $11 {might be a viable alternative}) 33... Re3 (33... Re5 34. Qh2 $17) 34.
Rg3 (34. Rg2 Qf7 35. gxh5 gxh5 $15) 34... Re2 (34... Re1+ 35. Rg1 $17) 35. gxh5
Qxh3+ 36. Rxh3 Rxb2 37. hxg6+ Kxg6 38. Rg3+ Kf5 39. Rg2 Rb5 40. Rg4 Ra5 (40...
Rb1+ 41. Rg1 Rxg1+ 42. Kxg1 Kf4 $17) 41. Kg2 $2 (41. a4 $142 $11 {and White
can hope to survive}) 41... Rxa2+ $19 42. Kg3 a5 43. Rf4+ Ke5 44. Re4+ Kd5 (
44... Kd6 $142 $5 45. f4 Ra3 $17) 45. c4+ $15 Kd6 46. Kg4 $2 (46. f4 $142 $15 {
is a viable option}) 46... a4 $19 47. Kf5 Rh2 (47... Rb2 $142 $5 48. Re6+ Kd7
$19) 48. Re6+ $17 Kd7 (48... Kc7 $142 $5 49. Re7+ Kb8 $17) 49. Rxb6 $11 a3 {
Don't underestimate that pawn.} 50. Ra6 a2 51. f4 Rc2 {Black threatens to win
material: Rc2xc4} 52. Ra4 Rxc4 53. Rxa2 {Black has a new passed pawn: c5} Kc6
54. Ke5 Rc1 55. f5 Rf1 56. Ke6 c4 57. f6 {Pushes the passed pawn} Re1+ 58. Kf7
Kc5 59. Kg8 Rg1+ 60. Kf8 c3 {White has to watch this pawn} 61. f7 Kd4 62. Ke7
Re1+ 63. Kd6 Rf1 {Black threatens to win material: Rf1xf7} 64. Ke7 Re1+ 65. Kd6
{Twofold repetition} Rf1 66. Ke7 1/2-1/2

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "1.5"]
[White "Kawamura, Takuto"]
[Black "Sato, Yasuji"]
[Result "1-0"]
[ECO "D08"]
[WhiteElo "0"]
[BlackElo "1498"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "49"]
[EventDate "2021.03.27"]

{[%mdl 8192] D08: Albin Counter Gambit} 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6
5. a3 f6 (5... Nge7 6. g3 Ng6 7. Bg2 Ngxe5 8. Nbd2 Be7 9. O-O O-O 10. b4 d3 11.
b5 Nd4 12. exd3 Nxd3 13. Ne4 Nxc1 14. Rxc1 Nxf3+ 15. Qxf3 Be6 16. Rfd1 Qc8 17.
Qe3 b6 18. c5 Rb8 19. a4 Rd8 20. Nd6 {Pinter,J (2590)-Souleidis,G (2290)
Dortmund 1998 1-0 (36)}) 6. exf6 Nxf6 {White is behind in developement.
White's piece can't move: f1} (6... Qxf6 7. Bg5 Qg6 8. Nbd2 h6 9. Bh4 Nf6 10.
b4 Bg4 11. b5 Bxf3 12. exf3 O-O-O 13. Bxf6 Nb4 14. Ne4 gxf6 15. Qa4 f5 16. axb4
fxe4 17. c5 {1/2-1/2 (17) Ebner,H (2235)-Schieder,A (2174) Austria 2015}) 7.
Bg5 $146 (7. Nbd2 Bg4 8. h3 Bxf3 9. Nxf3 Qe7 10. Bg5 O-O-O 11. Qd3 g6 12. Bxf6
Qxf6 13. g3 g5 14. Bg2 h5 15. h4 g4 16. Nd2 Ne5 17. Qb3 c6 18. O-O d3 19. Ne4
Qe6 20. exd3 Rxd3 21. Qa4 Nf3+ {Nijs,N (2242)-Piceu,T (2416) Brasschaat 2009
1-0 (34)}) (7. e3 $142 $5 {is interesting} Bg4 8. Be2 $16) 7... h6 $11 8. Bh4
g5 {Black threatens to win material: g5xh4} 9. Bg3 {White has a cramped
position. White's piece can't move: f1} Bd6 (9... Bg7 $142 $11) 10. Nxd4 $4 {
not a good decision, because now the opponent is right back in the game.} (10.
Nbd2 $142 g4 11. Nh4 $14) 10... O-O $4 {overlooking an easy win} (10... Bxg3
$142 {and Black has prevailed} 11. hxg3 Qxd4 $19 (11... Nxd4 $6 12. e3 Ne6 13.
Nc3 $17)) 11. e3 (11. Nxc6 bxc6 12. Qc2 Qe7 13. Bxd6 cxd6 $16) 11... Ne4 (11...
Bxg3 12. hxg3 (12. fxg3 $143 Qe8 13. Nxc6 bxc6 $17) 12... Ng4 13. Be2 Nxf2 14.
Qc2 Nxh1 15. Qg6+ Kh8 16. Qxh6+ Kg8 17. Qg6+ Kh8 18. Qh6+ Kg8 19. Qg6+ Kh8 20.
Qh6+ $11) 12. Qc2 {White threatens to win material: Qc2xe4} (12. Nc3 Bxg3 13.
Nxe4 $16 (13. fxg3 $143 Nf2 14. Nxc6 Qe8 $17) (13. hxg3 $143 Nxf2 14. Nxc6
Qxd1+ 15. Rxd1 Nxh1 16. Ne7+ Kg7 $17)) 12... Nc5 $4 (12... Qe8 $142 {would
hold out} 13. Nf3 g4 (13... Nxg3 $143 14. hxg3 Bxg3 15. Rxh6 $18) 14. Bxd6 Nxd6
$14) 13. Qg6+ $18 Kh8 14. Qxh6+ Kg8 15. Qg6+ Kh8 16. Nxc6 bxc6 17. b4 Qf6 (
17... Bf5 {is not much help} 18. Qh6+ Kg8 19. bxc5 Bxc5 20. Qxc6 $18) 18. Qxf6+
Rxf6 19. bxc5 Bxc5 (19... Bxg3 {hardly improves anything} 20. hxg3+ Kg7 21. Rh5
$18) 20. Be5 Kg7 (20... Be7 {a fruitless try to alter the course of the game}
21. Nd2 Bf5 22. g4 Bxg4 23. h4 $18) 21. Nc3 Bf5 22. Rd1 (22. g4 {and White can
already relax} Bg6 23. Bg2 Re8 24. Bxf6+ Kxf6 25. Bxc6 Re6 $18) 22... Kf7 (
22... Bxa3 {is not the saving move} 23. Bd3 Re8 24. Bxf6+ Kxf6 25. Kd2 $18) 23.
Bxf6 Kxf6 24. Bd3 (24. g4 $142 $5 {seems even better} Bc2 25. Rd2 Bg6 $18)
24... Be6 (24... Bxa3 {is the last straw} 25. h4 Bb4 $18) 25. Ne4+ (25. Ne4+
Ke7 26. Nxc5 $18) 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "1.6"]
[White "Nakamura, Mitsuru"]
[Black "Shimomura, Kensei"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "1354"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "89"]
[EventDate "2021.03.27"]

{[%mdl 8192] C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0
Bc5} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. d3 O-O 6. h3 $146 {Covers g4}
(6. Bxc6 bxc6 (6... dxc6 7. Nxe5 Qe7 8. Nf3 Bg4 9. Be3 Bxe3 10. fxe3 Rad8 11.
Qe1 Qc5 12. Nc3 b5 13. a3 a5 14. Nd4 Bd7 15. Qg3 Ng4 16. h3 Qe5 17. Qxe5 Nxe5
18. Nb3 a4 19. Nc5 Bc8 20. Na2 Rd6 21. Nb4 {Kagan,S (2375)-Carmel,E (2310) Tel
Aviv 1989 1-0 (37)}) 7. Nxe5 d5 8. d4 Bb6 9. Nxc6 (9. exd5 Qxd5 10. Be3 Ba6 11.
c4 Bxc4 12. Nc3 Qe6 13. Re1 Ba6 14. Qf3 Bb7 15. Rad1 Nd5 16. Ne4 f6 17. Nd3
Rae8 18. Nec5 Qc8 19. Rc1 Ba5 20. Red1 Ba6 21. a3 Bxd3 22. Nxd3 Qd7 23. h3 Bb6
{Andriasian,Z (2619)-Wlodarczyk,R (2264) Warsaw 2011 1-0 (47)}) 9... Qd6 10. e5
Qxc6 11. exf6 Qxf6 12. c3 c6 13. Be3 Bc7 14. Nd2 Qg6 15. g3 Bg4 16. Qb1 f5 17.
f4 Rae8 18. Qd3 Rxe3 19. Qxe3 Re8 20. Qd3 Be2 {Vykouk,J (2238)-Kovar,V (2238)
Czechia 2014 0-1 (42)}) (6. c3 d5 7. Nbd2 dxe4 8. dxe4 Bd6 9. Re1 Ne7 10. Nf1
h6 11. Ng3 Be6 12. h3 {1/2-1/2 (12) Blazeka,M (2312)-Fayard,A (2259) Budapest
2013}) (6. Bxc6 bxc6 7. Nxe5 d5 $16) 6... h6 {Prevents intrusion on g5} (6...
Nd4 7. Nxd4 Bxd4 8. Nd2 $11) 7. c3 {Secures b4} (7. Bxc6 bxc6 8. Nxe5 d5 $16)
7... a6 (7... d6 8. Nbd2 $11) 8. Ba4 (8. Bxc6 $142 $5 dxc6 9. Nxe5 $16) 8... b5
{Black threatens to win material: b5xa4} 9. Bc2 d6 10. d4 Ba7 11. d5 {White
threatens to win material: d5xc6} Ne7 12. Nbd2 c6 13. dxc6 Nxc6 {Black has a
new backward pawn: d6} 14. Re1 Qb6 {Black threatens to win material: Qb6xf2}
15. Re2 (15. Qe2 Be6 $15) 15... Nh5 (15... Rd8 $142 $5 $15 {is worth
consideration}) 16. Nf1 $11 Rd8 17. Be3 {White threatens to win material:
Be3xb6} Qc7 18. Qd2 (18. Bxa7 Rxa7 19. Ne3 Nf6 $11) 18... Bxe3 19. Rxe3 (19.
Nxe3 Nf4 20. Ree1 Be6 $11) 19... Qd7 (19... Nf4 $142 $5 $15 {is an interesting
idea}) 20. Rd1 $14 Re8 $2 (20... Nf4 $142 $5 {and Black can hope to live} 21.
Ng3 Na5 $11) 21. Qxd6 $16 Ra7 22. Red3 Qxd6 (22... Qc7 23. Qxc7 Rxc7 24. Ne3
$18) 23. Rxd6 $18 Re6 $2 (23... Rc7 24. Ne3 Be6 25. Bb3 $18) 24. Bb3 (24. Rd8+
$5 {seems even better} Nxd8 25. Rxd8+ Kh7 26. Rxc8 Nf6 $18) 24... Rxd6 25. Rxd6
Na5 (25... Bd7 26. Bd5 Rc7 27. Rxd7 Rxd7 28. Bxc6 Rd1 $18) 26. Rd8+ Kh7 27.
Rxc8 Nxb3 28. axb3 Rd7 (28... Nf4 {doesn't get the bull off the ice} 29. Ne3 f6
30. Rd8 $18) 29. Nxe5 Re7 30. Rc5 f6 (30... Nf4 {cannot undo what has already
been done} 31. Ng3 $18) 31. Ng4 (31. Nd3 $142 {keeps an even firmer grip} g6
$18) 31... Rxe4 (31... Nf4 {a fruitless try to alter the course of the game}
32. Ng3 $18) 32. Rxh5 g5 (32... Re2 $18 {is still a small chance}) 33. Rxh6+ (
33. Nxf6+ $142 $5 {makes it even easier for White} Kg6 34. Rxh6+ Kxh6 35. Nxe4
Kg6 $18) 33... Kg7 34. Rxf6 (34. Ng3 $142 {and White can celebrate victory} Re6
35. Rxf6 Rxf6 36. Nh5+ Kg6 37. Nhxf6 a5 $18) 34... Rxg4 35. hxg4 Kxf6 36. Ne3 (
36. b4 {keeps an even firmer grip} Ke5 $18) 36... Ke5 (36... a5 {does not win
a prize} 37. g3 $18) 37. b4 Ke4 38. Kf1 Kd3 39. Ke1 (39. g3 $142 $18 {might be
the shorter path}) 39... a5 40. bxa5 b4 (40... Ke4 {hardly improves anything}
41. a6 Ke5 42. a7 Kf6 43. a8=Q Ke7 44. Qd5 b4 45. Nf5+ Kf6 46. Qd6+ Kf7 47.
Qe7+ Kg6 48. Qg7#) 41. cxb4 Kd4 (41... Ke4 {doesn't get the cat off the tree}
42. a6 Ke5 43. a7 Kf6 44. a8=Q Kg7 45. Nf5+ Kf6 46. Qc6+ Kf7 47. Qd7+ Kf6 48.
f3 Ke5 49. Qd6#) 42. a6 Ke4 (42... Ke5 {is no salvation} 43. a7 Kf6 44. a8=Q
Ke7 45. Nf5+ Kd7 46. Qb7+ Ke6 47. f3 Ke5 48. Qc6 Kf4 49. Qe4#) 43. a7 Kd3 (
43... Ke5 {doesn't change anything anymore} 44. a8=Q Kd6 45. Qc8 Ke7 46. Nf5+
Kf6 47. Qd7 Ke5 48. Qd6+ Ke4 49. f3#) 44. a8=Q Kd4 45. Qd5# 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "1.7"]
[White "Wada, Katsuhiko"]
[Black "Takeuchi, Hiroshi"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "0"]
[BlackElo "1354"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "122"]
[EventDate "2021.03.27"]

{[%mdl 8192] D00: 1 d4 d5: Unusual lines} 1. g3 Nf6 2. Bg2 d5 3. d4 e6 (3... c6
4. b3 Bf5 5. Bb2 e6 6. Nd2 Nbd7 7. f3 Be7 8. e4 dxe4 9. fxe4 Bg4 10. Ngf3 O-O
11. h3 Bxf3 12. Qxf3 c5 13. d5 exd5 14. exd5 Bd6 15. O-O Be5 16. Bxe5 Nxe5 17.
Qf5 Qd6 18. Rae1 {Nemeth,Z (2395)-Lukacs,P (2440) Solymar 1996 0-1 (42)}) 4.
Bf4 $146 (4. Nd2 c5 5. c3 Nc6 6. Ngf3 b6 7. O-O Be7 8. Ne5 Bb7 9. Qa4 Qc7 10.
Ndf3 O-O 11. Bf4 Nxe5 12. Bxe5 Bd6 {1/2-1/2 (12) Fromme,E (2193)-Steyer,B 
(2169) Germany 2012}) (4. Bg5 Be7 5. Nd2 c5 6. dxc5 Bxc5 7. e3 h6 8. Bxf6 Qxf6
9. c3 Nc6 10. Ne2 O-O 11. O-O Rd8 12. Nf4 Qe7 13. Qh5 Bd7 14. Rad1 Be8 15. Nd3
Bb6 16. Rfe1 Rac8 17. Qg4 f5 18. Qh3 Na5 {Anilkumar,O (2256)-Sriram,J (2425)
Dindigul 2007 1/2-1/2}) (4. e3 Be7 5. Ne2 O-O 6. b3 b6 7. c4 Bb7 8. O-O Qc8 9.
Ba3 Bxa3 10. Nxa3 dxc4 11. Nxc4 Bxg2 12. Kxg2 c5 13. Rc1 Nbd7 14. f3 Qa6 15. e4
Rad8 16. Rc2 cxd4 17. Nxd4 b5 18. Ne3 Ne5 {Dolezal,C (2414)-Hungaski,R (2379)
Santos 2007 1/2-1/2 (42)}) (4. Nf3 Bd6 $11) 4... Bd6 5. Bxd6 (5. Nc3 c5 6. dxc5
Bxf4 7. gxf4 Qa5 $11) 5... Qxd6 6. Nf3 (6. Nc3 O-O $11) 6... Nc6 (6... Qb4+ $5
7. Nbd2 Qxb2 $15) 7. Nc3 $11 O-O 8. O-O b6 9. Re1 Bb7 10. a3 {Controls b4} a6 {
Consolidates b5} 11. Qd3 Rfe8 12. e4 dxe4 13. Nxe4 Nxe4 14. Rxe4 Ne7 15. Rh4 {
White threatens to win material: Rh4xh7} Ng6 {Black threatens to win material:
Ng6xh4} 16. Rh3 (16. Ne5 Nxh4 17. Bxb7 Rab8 $11) 16... h6 {Controls g5} (16...
Rad8 17. Rb1 $17) 17. Re1 (17. Nh4 $5 {is worthy of consideration} Bxg2 18.
Kxg2 (18. Nxg2 $143 Rad8 $17) 18... Qd5+ 19. Kg1 $11) 17... Rad8 $17 18. Rh5 a5
(18... Bxf3 19. Bxf3 Qxd4 20. Qb3 $17) 19. Nh4 (19. c3 $5 $11 {has some
apparent merit}) 19... Bxg2 $17 20. Nxg2 (20. Kxg2 $5 Qxd4 21. Qxd4 Rxd4 22.
Nxg6 fxg6 23. Rhe5 $15) 20... Qxd4 21. Qb5 Qg4 22. h3 Qf3 23. Qe2 (23. Nh4 Nxh4
24. Rxh4 Re7 $17) 23... Qxe2 24. Rxe2 Rd1+ 25. Kh2 Red8 26. Nf4 $2 (26. Ne1 e5
$19) 26... Nxf4 (26... R1d2 $142 {ends the debate} 27. Rxd2 Rxd2 $19) 27. gxf4
R8d2 28. Rhe5 Rxe2 29. Rxe2 Kf8 30. Kg2 g6 31. Re3 Rd2 32. Rc3 Rd7 33. Rd3 $4 {
White falls apart} (33. Kf3 $142 $17) 33... Rxd3 $19 34. cxd3 Ke7 35. Kf3 Kd6
36. b3 (36. Ke4 {otherwise it's curtains at once} c5 37. Ke3 $19) 36... Kd5 37.
Ke3 c5 38. a4 (38. h4 {does not help much} e5 39. fxe5 Kxe5 $19) 38... f6 39.
h4 (39. Ke2 {is no salvation} Kd4 40. Kd2 g5 $19) 39... f5 40. Kd2 e5 (40...
Kd4 {and Black can already relax} 41. Kc2 $19) 41. fxe5 (41. Ke3 {does not
solve anything} exf4+ 42. Kxf4 Ke6 $19) 41... Kxe5 42. Ke3 Kd5 (42... g5 $142 {
and Black has it in the bag} 43. f4+ gxf4+ 44. Ke2 Kd4 $19) 43. f4 h5 (43...
Kd6 $142 {makes it even easier for Black} 44. Kd2 Ke6 $19) 44. d4 $4 {terrible,
but the game is lost in any case} (44. Ke2 $142 $17) 44... cxd4+ $19 45. Kd3
Kc5 46. Kc2 Kb4 47. Kd3 Kxb3 48. Kxd4 Kxa4 49. Ke5 Kb3 50. Kf6 a4 51. Kxg6 a3
52. Kxh5 a2 53. Kg5 a1=Q 54. Kxf5 Qg7 (54... Qh1 55. Kg4 Qg1+ 56. Kf5 Qb1+ 57.
Kg5 Qe1 58. h5 Qe7+ 59. Kg6 Qd6+ 60. Kg5 Qc5+ 61. f5 Qf8 62. h6 Qd8+ 63. f6
Qd5+ 64. Kg4 Qd7+ 65. Kg3 Qb7 66. Kf2 Qa7 67. Ke3 Qd7 68. Kf2 Qd2+ 69. Kg1 Qxh6
70. Kg2 Kc3 71. f7 Qg7+ 72. Kf3 Qxf7+ 73. Kg2 Qg6+ 74. Kf3 b5 75. Kf2 Qg4 76.
Ke3 Qf5 77. Ke2 Qf4 78. Ke1 Kd3 79. Kd1 Qd2#) 55. Ke6 Qg4+ 56. f5 (56. Ke5 {
is not much help} Qh5+ 57. Ke6 Kc4 58. Kf6 Qxh4+ 59. Ke5 b5 60. Kf5 Qh5+ 61.
Ke6 Qg6+ 62. Ke5 b4 63. f5 Qg3+ 64. Ke6 b3 65. Ke7 b2 66. Ke8 Qc7 67. f6 b1=Q
68. f7 Qbb8#) 56... Qxh4 57. f6 Qh8 58. Ke7 {[%cal Rb6b5] Black now must not
overlook the idea b5} b5 59. f7 Qg7 60. Ke8 b4 61. f8=Q (61. Ke7 {cannot
change destiny} Kc4 62. Ke8 Qf6 63. f8=Q Qxf8+ 64. Kxf8 b3 65. Ke8 b2 66. Kd7
b1=Q 67. Ke6 Qe4+ 68. Kf7 Kd5 69. Kg8 Qg4+ 70. Kf7 Qg5 71. Ke8 Ke6 72. Kf8 Qg3
73. Ke8 Qb8#) 61... Qxf8+ (61... Qxf8+ 62. Kxf8 Kc4 63. Ke7 b3 64. Kf7 Kd4 65.
Ke6 b2 66. Kd7 b1=Q 67. Kc6 Qe4+ 68. Kd6 Qe8 69. Kc7 Kc5 70. Kb7 Qd7+ 71. Ka6
Qf7 72. Ka5 Qa2#) 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "2.1"]
[White "Drakakis, Athanasios"]
[Black "Takeuchi, Hiroshi"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1904"]
[BlackElo "1354"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "101"]
[EventDate "2021.03.27"]

{[%mdl 8192] D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6
3 Bf4} 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. Nbd2 O-O 5. e3 d5 6. Bd3 Bg4 (6... b6
7. O-O Bb7 8. Qe2 c5 9. c3 Nc6 10. h3 Nd7 11. Rad1 Re8 12. Rfe1 a6 13. Bc2 e6 {
1/2-1/2 (13) Schussler,H (2445)-Keene,R (2490) Bochum 1981}) (6... Nbd7 7. h3
Re8 8. Bh2 b6 9. O-O Bb7 10. Ne5 Nxe5 11. Bxe5 Bh6 12. a4 Nd7 13. a5 Nxe5 14.
dxe5 a6 15. axb6 c5 16. c4 d4 17. exd4 Qxd4 18. Nb3 Qxe5 19. Na5 Rab8 20. Re1
Qd6 21. Qb3 {Stripunsky,A (2549)-Vibbert,S (2299) Arlington 2013 1-0 (43)}) 7.
h3 Bxf3 {Black forks: d1+g2} 8. Nxf3 $146 {White has the pair of bishops} (8.
Qxf3 Nbd7 9. g4 Re8 10. Qg3 Rc8 11. c3 c5 12. O-O Qb6 13. Rab1 Qc6 14. f3 b5
15. a3 Qb6 16. Kg2 a5 17. h4 h5 18. Be5 c4 19. Bc2 hxg4 20. f4 e6 21. Rf2 Kh7
22. Rh1 Nh5 {Strandby,M (2214)-Rostgaard,T (2198) Denmark 2011 0-1 (46)}) 8...
Nc6 (8... c5 9. O-O $11) 9. c3 $14 {Secures b4} e6 {Covers f5} 10. O-O a6 {
Prevents intrusion on b5} 11. Qc2 Qe7 12. Rae1 Rac8 13. Bg5 Qd6 14. Bf4 {
White threatens to win material: Bf4xd6} Qe7 {Twofold repetition} 15. Bh2 Rfe8
16. Ne5 (16. Rb1 Na7 $14) 16... Na7 (16... Nxe5 17. dxe5 Nd7 18. f4 $11) 17. f4
(17. Bf4 Nh5 $11) 17... c5 $11 18. Qe2 c4 {Black threatens to win material:
c4xd3} 19. Bc2 Nb5 20. g4 {[%cal Yf4f5] White prepares the advance f5} Nd6 21.
f5 {White gains space} Nde4 (21... exf5 22. gxf5 b5 $11 (22... Nxf5 $143 23.
Bxf5 gxf5 24. Rxf5 $14)) 22. fxg6 $14 hxg6 (22... fxg6 $142 $5 23. h4 Nd6 $14)
23. Bxe4 $16 Nxe4 24. Rxf7 Qxf7 $2 (24... Qh4 $142 25. Rxb7 Bxe5 26. Bxe5 Re7
27. Rxe7 Qxe7 $16) 25. Nxf7 Kxf7 26. Rf1+ Ke7 (26... Kg8 27. h4 $18) 27. Kg2 (
27. Qc2 $5 {seems even better} Rf8 28. Qa4 Rxf1+ 29. Kxf1 Rf8+ 30. Kg1 Bh6 31.
Qb4+ Ke8 $18) 27... Rf8 28. Rxf8 Rxf8 29. Bg3 Rf7 30. h4 Bf8 31. g5 (31. Bf4 {
keeps an even firmer grip} Rh7 32. h5 gxh5 33. gxh5 Kd7 $18) 31... Rh7 (31...
Kd7 32. Qd1 Bd6 33. Bxd6 Kxd6 34. Qa4 $18) 32. Qg4 (32. b3 $5 {and White can
already relax} b5 $18) 32... Kd7 33. Be5 Be7 34. Qf4 b5 35. Bb8 Nd6 $4 {
the final mistake, not that it matters anymore} (35... Ke8 $18) 36. Bxd6 Bxd6
37. Qf2 Be7 38. Kg3 Ke8 (38... a5 {doesn't change the outcome of the game} 39.
Kg4 $18) 39. Kg4 (39. Qf4 $142 $5 {makes it even easier for White} Kd7 40. Kg4
b4 $18) 39... Rf7 40. Qg2 (40. Qg3 $5 {might be the shorter path} Kd7 41. Qb8
Rf1 42. Qb7+ Ke8 43. Qxa6 Kf7 44. Qxb5 Bd6 $18) 40... Rf5 41. b3 Kd7 (41... Bd6
{does not improve anything} 42. bxc4 bxc4 43. Qc2 $18) 42. bxc4 bxc4 43. Qc2
Kc7 (43... Ke8 {is not the saving move} 44. e4 dxe4 45. Qxe4 $18) 44. Qa4 Bd6 (
44... Rf8 $18 {there is nothing better in the position}) 45. Qxa6 Rf1 46. Qa7+
Kc6 47. Qh7 Rg1+ 48. Kf3 Rg3+ (48... e5 {there is nothing else anyway} 49. Qxg6
e4+ 50. Kf2 Rb1 51. Qe8+ Kc7 $18) 49. Kf2 Rh3 50. Qxg6 Rh2+ 51. Kg1 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "2.2"]
[White "Takahashi, Ryunosuke"]
[Black "Kawamura, Takuto"]
[Result "1-0"]
[ECO "A79"]
[WhiteElo "1657"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "51"]
[EventDate "2021.03.27"]

{[%mdl 8192] A79: Modern Benoni: Classical: 9...Re8 10 Nd2 Na6 11 f3} 1. d4 Nf6
2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Be2 Bg7 8. Nf3 O-O 9. O-O
Re8 10. Nd2 Na6 11. f3 Rb8 (11... Nh5 12. f4 Bd4+ 13. Kh1 Nf6 14. Bf3 h5 15. h3
Ng4 16. Nc4 Nc7 17. Nxd6 Qxd6 18. hxg4 hxg4 19. Bxg4 Kg7 20. g3 Bxg4 21. Qxg4
Bxc3 22. bxc3 Rxe4 23. Qf3 Qxd5 24. f5 Rh8+ 25. Kg1 Qxf5 26. Qxf5 {Reichmann,E
(2279)-Durakovic,A (2329) Austria 2015 0-1 (42)}) 12. Rf2 $146 (12. a4 Nb4 (
12... Nc7 13. Nc4 b6 14. Bf4 Bf8 15. Nb5 Nxb5 16. axb5 Nh5 17. Bd2 Ra8 18. g4
Ng7 19. Qe1 Bd7 20. Na3 Be7 21. Bc3 Bf6 22. Qg3 Bxc3 23. bxc3 Qf6 24. Rac1 Reb8
25. f4 Ne8 26. e5 Qe7 27. Bc4 {Arlandi,E (2300)-Fernandes,A (2335) Mexico 1981
1/2-1/2 (51)}) 13. Nc4 Bf8 14. Bg5 h6 (14... b6 15. f4 Be7 16. e5 Nfxd5 17.
Nxd5 Nxd5 18. Qxd5 Bb7 19. Bxe7 {1-0 (19) Kekelidze,M (2484)-Schnider,G (2314)
Graz 2004}) 15. Be3 b6 16. Qd2 Kh7 17. g4 Ba6 18. Nb5 Qd7 19. Bf4 Bxb5 20. axb5
Qc7 21. Bg3 Nd7 22. Ra3 Ne5 23. Nxe5 dxe5 24. f4 Bd6 25. Raf3 exf4 26. Bxf4
Rxe4 {Donner,J (2470)-Hartoch,R (2430) Wijk aan Zee 1973 1-0}) (12. a4 Nb4 13.
Nc4 a6 $16) 12... Nc7 13. a4 a6 {Covers b5} 14. a5 Nfxd5 $2 (14... Nh5 $142 15.
Nc4 Bd4 $16) 15. exd5 $18 (15. Nxd5 $6 Nxd5 16. exd5 Bd4 $16) 15... Bd4 16.
Nde4 Bf5 17. Kf1 Qh4 (17... h6 18. Qe1 $18 (18. Bxh6 $143 Qh4 19. Bg5 Qxh2 $19)
) 18. g3 Qh3+ 19. Rg2 h6 (19... Bxe4 20. fxe4 f5 21. Ra4 $18) 20. Bf4 (20. Nxd6
{keeps an even firmer grip} Re5 21. f4 Rxe2 22. Qxe2 Bg4 $18) 20... Bxc3 (20...
Bxe4 {is one last hope} 21. fxe4 Qd7 22. Bxh6 Qe7 $18) 21. Nxc3 ({Instead of} 
21. bxc3 Bxe4 22. fxe4 Rxe4 $18) 21... Rbd8 22. g4 Bd7 23. Kg1 (23. Ne4 {
might be the shorter path} Bb5 24. Nf6+ Kh8 25. Nxe8 Bxe2+ 26. Qxe2 Rxe8 $18)
23... Nb5 (23... Bb5 {doesn't change anything anymore} 24. Ne4 Bxe2 25. Rxe2
Qxf3 26. Nf6+ Kg7 27. Nxe8+ Nxe8 28. Rf2 Qxd1+ 29. Rxd1 $18) 24. Bg3 (24. Ne4
$142 {might be the shorter path} Nd4 25. Nf6+ Kg7 26. Nxe8+ Bxe8 $18) 24... Nd4
(24... Nxc3 {no good, but what else?} 25. bxc3 h5 $18) 25. Bf1 Re1 26. Qxe1 (
26. Qxe1 Nxf3+ 27. Kh1 Nxe1 28. Ne4 Nxg2 29. Bxg2 Qxg4 30. Nf6+ Kg7 31. Nxg4
Bxg4 32. Re1 $16) 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "2.3"]
[White "Al Jbarat, Thamer Mahmmoud Muhammad "]
[Black "Nakamura, Mitsuru"]
[Result "0-1"]
[ECO "D01"]
[WhiteElo "0"]
[BlackElo "1354"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "88"]
[EventDate "2021.03.27"]

{[%mdl 8192] D01: Veresov Opening} 1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. e3 c6 5.
h3 (5. Qf3 Qa5 6. Bxf6 Nxf6 7. Bd3 e5 8. dxe5 Ba3 9. exf6 Bxb2 10. fxg7 Bxc3+
11. Kf1 Bxg7 12. Rd1 Be6 13. Qg3 Bf6 14. Qf4 Be7 15. Nf3 O-O-O 16. Nd4 Bd6 17.
Qf6 Qc3 18. Bf5 Rhe8 19. Qxf7 Bxf5 {Vovsha,E (2484)-Kretchetov,A (2391) ICC
INT 2010 0-1 (31)}) (5. f4 g6 6. Be2 Bg7 7. Nf3 O-O 8. O-O Ne8 9. g4 Ndf6 10.
Nd2 c5 11. Bf3 cxd4 12. exd4 Qb6 13. Nb3 e6 14. Qe1 h6 15. Bh4 Nd6 16. a4 Bd7
17. Nc5 Bc6 18. Bf2 Qc7 19. Nd3 b6 {Munson,S (2167)-Pitcher,J (2251) England
2014 0-1 (61)}) 5... h6 6. Bf4 e6 $146 (6... g6 7. Bd3 Bg7 8. Nf3 O-O 9. Qd2 a6
10. e4 dxe4 11. Nxe4 Nxe4 12. Bxe4 Nf6 13. Bd3 Kh7 14. O-O-O Nd5 15. Be5 b5 16.
Bxg7 Kxg7 17. Ne5 Qd6 18. Be4 Be6 19. c3 Rac8 20. Kb1 a5 21. g4 {Harholm,J 
(2213)-Ipek,A (2213) Izmir 2004 1-0 (44)}) 7. Nf3 Bb4 8. a3 (8. Bd3 c5 9. dxc5
Nxc5 $11) 8... Bxc3+ 9. bxc3 {White has the pair of bishops} Nf8 (9... Qa5 $142
$5 {should be examined more closely} 10. Qd3 Ne4 $11) 10. Bd3 $16 Ng6 11. Bg3
O-O 12. O-O b6 13. Qb1 (13. Qe2 Bb7 $14) 13... Bb7 (13... Ne4 14. Bxe4 dxe4 15.
Nd2 $14) 14. c4 (14. Rd1 $5 $14 {must be considered}) 14... dxc4 $11 15. Bxc4
Ne4 16. Bh2 Nh4 17. Qc1 $2 (17. Qd1 $142 $5 {and White could well hope to play
on} Nxf3+ 18. gxf3 Qg5+ 19. Kh1 $11) 17... Nxf3+ $17 18. gxf3 Nd6 {Black
threatens to win material: Nd6xc4} (18... Ng5 $5 19. Kg2 c5 $17) 19. Bd3 c5 20.
Bxd6 (20. dxc5 $5 Qg5+ 21. Bg3 Qxc5 22. e4 $17) 20... Qxd6 21. dxc5 Qxc5 22. e4
Qh5 23. Kg2 f5 (23... e5 24. Rg1 $17) 24. Qe3 $17 f4 25. Qd4 (25. Qe2 Rf6 $17)
25... Rad8 (25... Rf6 26. Rh1 Rg6+ 27. Kh2 $19) 26. Qc4 $17 Qg6+ (26... Kh8
$142 $5 $17) 27. Kh2 $15 Qf6 {White king safety improved} 28. Rg1 Rc8 29. Qb3
Rc3 {Black threatens to win material: Rc3xb3} 30. Qa2 Rd8 31. Qb2 (31. Rg4 Kf7
$17) 31... Kf7 (31... Qd4 32. Qa2 Kf7 33. Rg2 $17) 32. Qb5 Rc5 33. Qb3 $2 (33.
Qa4 Ra5 34. Qb3 Qe5 $17) 33... g5 (33... Qh4 $142 $5 34. Kg2 Bc6 $19) 34. Rae1
Qh8 (34... Qd4 35. Ref1 $17) 35. Qa4 (35. Rd1 $5 $15) 35... Ra5 $17 36. Qb4 h5
(36... Qe5 $142 $17) 37. Rxg5 $4 {ignoring the path to victory.} (37. h4 $142 {
was possible} Qd4 38. Rg2 $11) 37... Rxg5 $19 38. Qc4 Qg8 (38... Qe5 $142 $19 {
and Black wins}) 39. Qc7+ $17 Kg6 $4 {allows the opponent back into the game} (
39... Ke8 40. Rd1 Bc6 41. Qxc6+ Ke7 42. Qc7+ Rd7 43. Qxf4 $17) 40. Qxb7 $4 {
letting the wind out of his own sails} (40. h4 Kh6 41. Qxf4 $16 (41. hxg5+ $6
Qxg5 42. Rg1 Qh4+ 43. Kg2 Rg8+ 44. Kf1 Qh3+ 45. Ke2 Rxg1 46. Qxf4+ Rg5 $11))
40... Kh6 $17 41. Bf1 $4 {White crumbles in face of a dire situation} (41. e5
$142 Rg2+ 42. Kh1 $17) 41... Rd2 42. Kh1 (42. Qg7+ {does not save the day} Rxg7
43. Re2 Rxe2 44. e5 Rxf2+ 45. Bg2 Rgxg2+ 46. Kh1 Rh2#) 42... Rg1+ 43. Kh2 Rxf2+
(43... Qg3#) 44. Bg2 Rfxg2# (44... Qxg2#) 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "2.4"]
[White "Sugimoto, Koichi"]
[Black "Watanabe, Katsumi"]
[Result "1-0"]
[ECO "D56"]
[WhiteElo "2008"]
[BlackElo "1604"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "89"]
[EventDate "2021.03.27"]

{[%mdl 8256] D56: Queen's Gambit Declined: Lasker Defence} 1. d4 d5 2. c4 e6 3.
Nf3 Nf6 4. Bg5 Be7 5. Nc3 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Rc1 Nd7 (9...
Nf6 10. Qb3 Rd8 11. Be2 dxc4 12. Qxc4 a6 13. O-O b5 14. Qb3 Bb7 15. a4 b4 16.
a5 Nc6 17. Na2 Rab8 18. Qa4 b3 19. Qxb3 e5 20. dxe5 Nxe5 21. Qa3 Nxf3+ 22. Bxf3
Qxa3 23. bxa3 Bxf3 24. gxf3 {Beliavsky,A (2630)-Short,N (2620) Belgrade 1987
1-0 (39)}) 10. Bd3 $146 {White threatens to win material: Bd3xe4} (10. cxd5
Nxc3 11. Rxc3 exd5 12. Bd3 Nf6 13. Qc2 c6 14. O-O Re8 15. Ne5 Ng4 16. Nf3 Be6
17. Rb1 Rf8 18. h3 Nf6 19. b4 a6 20. a4 Rfc8 21. Ne5 Nd7 22. Nxd7 Qxd7 23. Rc1
f5 24. b5 cxb5 {Potrekeev,P (2159)-Lugovskoy,M (2376) Golubitskaya 2012 0-1 
(47)}) (10. cxd5 Nxc3 11. Rxc3 Nf6 $14) 10... Ndf6 (10... Nxc3 11. Rxc3 e5 12.
dxe5 (12. cxd5 $143 e4 $17) 12... dxc4 13. Bxc4 Nxe5 14. Nxe5 Qxe5 15. O-O $11)
11. O-O $16 c6 {Secures b5} 12. Qc2 Nxc3 13. Qxc3 dxc4 14. Bxc4 Ne4 (14... Rd8
15. Ne5 $16) 15. Qc2 f5 16. Bd3 Ng5 17. Ne5 Nf7 $2 (17... Rf6 $142 $16) 18. Ng6
$18 Qg5 19. Nxf8 Kxf8 20. e4 f4 21. Qc5+ {[%cal Ye4e5] White intends e5} Kg8
22. Qxg5 hxg5 23. e5 Bd7 24. b4 Rd8 25. Rfd1 Bc8 (25... g4 26. Be2 Nh6 27. b5
$18) 26. b5 cxb5 27. Bxb5 (27. Rc7 $142 {keeps an even firmer grip} Kf8 $18)
27... Nh6 (27... Kf8 28. Bc4 $18) 28. Bd3 (28. Rc7 $5 {and White can already
relax} a6 29. Ba4 b5 $18) 28... Bd7 29. Be4 Ba4 30. Rd3 (30. Rd2 {might be the
shorter path} Ng4 31. Bxb7 Nxe5 $18) 30... Rd7 (30... Nf7 $18 {the last chance
for counterplay}) 31. d5 exd5 32. Bxd5+ Kf8 33. e6 Rd6 (33... Re7 {doesn't get
the cat off the tree} 34. h4 $1 {Decoy: h4} gxh4 35. Rd4 $18) 34. Rc8+ (34. Rc7
$5 {seems even better} Nf5 35. Rxb7 a6 $18) 34... Ke7 35. Rc7+ Kf6 36. Bc4 Rc6
(36... Rb6 {doesn't do any good} 37. h3 Rc6 38. Rdd7 Rxc7 39. Rxc7 $18) 37.
Rxc6 (37. Rdd7 $142 $5 {makes it even easier for White} Rxc4 38. Rxc4 Bxd7 39.
exd7 Ke7 $18) 37... Bxc6 38. Kf1 (38. Bd5 $5 {and White can already relax} Ng8
$18) 38... Ng8 (38... Nf5 39. h3 $18) 39. Ke1 (39. Rd8 {seems even better} Nh6
$18) 39... Bxg2 (39... Ne7 40. f3 $18) 40. f3 Ne7 41. Kf2 Bh3 42. Rd7 Nc6 $2 (
42... b6 $18) 43. Rf7+ Kg6 (43... Ke5 {doesn't improve anything} 44. Rxb7 Bxe6
45. Bxe6 Kxe6 46. Rxg7 $18) 44. Rxb7 (44. Bd3+ $142 {it becomes clear that
White will call all the shots} Kh6 45. e7 Bd7 $18) 44... Na5 (44... Kf6 {
the only chance to get some counterplay} 45. Rf7+ Ke5 $18) 45. e7 $1 {Mate
threat.} (45. e7 Be6 46. e8=Q+ Kh6 47. Bd3 Bf5 48. Bxf5 Nxb7 49. Qg6#) 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "2.5"]
[White "Ikogba, Kelvin"]
[Black "Nishimori, Toshiyuki"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "0"]
[BlackElo "1712"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "90"]
[EventDate "2021.03.27"]

{[%mdl 8192] B50: Sicilian: 2...d6, Miscellaneous} 1. e4 c5 2. Nf3 Nc6 3. Bc4
d6 4. d3 Nf6 5. a3 (5. Nbd2 g6 6. a3 Bg7 7. O-O O-O 8. Ba2 b5 9. Re1 Rb8 10. c3
a5 11. d4 cxd4 12. cxd4 Qb6 13. Nf1 Bg4 14. Be3 Bxf3 15. gxf3 Qb7 16. Ng3 a4
17. f4 Na5 18. Bd2 Nc4 19. Bxc4 bxc4 {Adams,M (2665)-Khalifman,A (2650) Aarhus
1997 0-1 (36)}) 5... Bg4 (5... a6 6. O-O Bg4 7. Nbd2 e6 8. h3 Bh5 9. Ba2 Be7
10. g4 Bg6 11. Ne1 e5 12. f4 exf4 13. Ndf3 h5 14. g5 Nh7 15. h4 f6 16. gxf6
Bxf6 17. Ng2 Qd7 18. Rb1 O-O-O 19. Bxf4 Bf7 20. Bxf7 {Alsina Leal,D (2531)
-Becerra,J (2178) Barcelona 2015 1-0}) 6. c3 $146 {Consolidates b4+d4} (6. Nbd2
e6 7. O-O Be7 8. Qe1 O-O 9. Ba2 d5 10. Bb1 Nd7 11. h3 Bh5 12. Nh2 Kh8 13. Ndf3
Bg6 14. Qe2 b5 15. exd5 exd5 16. d4 c4 17. c3 Bxb1 18. Rxb1 a5 19. Ng4 b4 20.
Ne3 Nb6 {Vajda,A (2423)-Lupulescu,C (2560) Brasov 2004 1/2-1/2 (53)}) (6. Bf4
e6 7. Ba2 Be7 8. Nbd2 b5 9. O-O O-O 10. h3 Bh5 11. Re1 Qb6 12. Nf1 d5 13. exd5
Nxd5 14. Bxd5 exd5 15. Ne3 Rfd8 16. Nf5 Bf6 17. Rb1 a5 18. g4 Bg6 19. N3h4 c4
20. g5 Bd4 {Xheladini,M (2290)-David,P (2440) Germany 1996 1/2-1/2 (45)}) (6.
Ba2 e6 7. h3 Bh5 8. Nbd2 Be7 9. Nf1 d5 10. Ng3 Bg6 11. exd5 Nxd5 12. O-O O-O
13. Re1 Qc7 14. Ng5 {1/2-1/2 (14) Vajda,A (2428)-Itkis,B (2436) Tusnad 2004}) (
6. Nc3 $11) 6... Ne5 (6... e6 7. O-O $15) 7. Nbd2 (7. Nxe5 $5 dxe5 8. Qb3 $16)
7... Nxc4 $11 8. Nxc4 {Black has the pair of bishops} b5 {Black threatens to
win material: b5xc4} (8... g6 9. O-O $11) 9. Ncd2 (9. Ne3 Bd7 $14) 9... e6 (
9... g6 10. a4 a6 11. h3 $11) 10. b4 (10. O-O Be7 $11) 10... Be7 11. Bb2 O-O
12. O-O Qb6 13. Qc2 a6 14. Rae1 {[%cal Ye4e5] White plans e5} Nd7 15. e5 (15.
h3 $5 Bh5 16. c4 $15) 15... d5 $17 16. bxc5 Nxc5 17. d4 (17. h3 $142 Bh5 18.
Re3 $17) 17... Bf5 $4 {there were better ways to keep up the pressure} (17...
Na4 $142 18. Re3 Rfc8 $17) 18. Qc1 $4 {spoils everything} (18. dxc5 $142 Bxc5
19. Qd1 $16) 18... Nd3 $19 19. Qa1 Nxe1 20. Rxe1 Rfc8 21. Nf1 h6 22. Ng3 (22.
Ne3 {a fruitless try to alter the course of the game} Bg6 $19) 22... Bh7 23.
Bc1 (23. Qa2 {doesn't get the bull off the ice} Qa5 $19) 23... Qa5 24. Bd2 (24.
Bb2 {doesn't get the cat off the tree} Qa4 $19) 24... Qxa3 25. Qd1 (25. Qxa3 {
does not save the day} Bxa3 26. Re2 a5 $19) 25... b4 (25... a5 $142 {and the
result of the game is clear: Black will win} 26. h3 $19) 26. cxb4 Bc2 27. Qe2 (
27. Qc1 {hardly improves anything} Bxb4 28. Qxa3 Bxa3 $19) 27... Bxb4 28. Bxb4
(28. Qe3 {cannot undo what has already been done} Qxe3 29. fxe3 a5 $19) 28...
Qxb4 29. Nh5 (29. Ra1 {cannot change what is in store for White} a5 30. Qd2
Qxd2 31. Nxd2 a4 $19) 29... Bg6 (29... a5 30. Ra1 a4 31. Ne1 Qxd4 32. Ra3 $19)
30. Nf4 Bh7 31. h4 (31. Ra1 {does not win a prize} a5 $19) 31... a5 32. Qe3 (
32. Nd3 {doesn't change anything anymore} Bxd3 33. Qxd3 a4 $19) 32... Rc3 33.
Qe2 a4 34. Nh5 (34. Qd2 {cannot change destiny} a3 35. Ra1 Rc4 $19) 34... a3
35. Nd2 (35. Qd2 {does not solve anything} Qb2 36. Nf6+ Kh8 $19) 35... Qxd4 36.
Rd1 Qxh4 (36... Rd3 $142 {makes it even easier for Black} 37. Ng3 a2 $19) 37.
g4 Rh3 38. Ng3 a2 39. Ra1 Rxg3+ 40. fxg3 Qxg3+ 41. Kh1 Qc3 42. Qe1 (42. Qf1 {
is no salvation} Qxd2 43. Kg1 Qd4+ 44. Kh2 Qb2+ 45. Kg1 Be4 46. Rxa2 Rxa2 47.
Qxf7+ Kxf7 48. Kf1 Qf2#) 42... Qh3+ $19 43. Kg1 Qxg4+ 44. Kh2 (44. Kf1 {
cannot change what is in store for White} Qh3+ 45. Ke2 Qd3+ 46. Kf2 Ra3 47. Kg1
Qd4+ 48. Kf1 Rh3 49. Qe2 Qxa1+ 50. Kf2 Rh2+ 51. Kf3 Qh1+ 52. Kg4 Qg1+ 53. Qg2
Qxg2+ 54. Kf4 Rh3 55. Ne4 Qxe4#) 44... Ra3 45. Qf1 Bf5 (45... Bf5 46. Nb3 Rxb3
47. Rxa2 Qg3+ 48. Kh1 Be4+ 49. Rg2 Rb1 50. Qxb1 Qxg2#) 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "2.6"]
[White "Hayashi, Ryota"]
[Black "Yoshii, Yukihiko"]
[Result "0-1"]
[ECO "C58"]
[WhiteElo "0"]
[BlackElo "1797"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "96"]
[EventDate "2021.03.27"]

{[%mdl 8192] C58: Two Knights: 4 Ng5 d5 5 exd5 Na5 sidelines} 1. e4 e5 2. Nf3
Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Qc7 9. Be2
$146 (9. Bd3 Be7 (9... h6 10. Ne4 Nd5 11. O-O (11. Nbc3 Nb4 12. Ng3 Nxd3+ 13.
Qxd3 Nb7 14. O-O Bc5 15. Nce4 Be7 16. Qf3 Qd7 17. Qh5 Qe6 18. d3 O-O 19. f4 f5
20. Nc3 Bd6 21. Kh1 Bd7 22. fxe5 Bxe5 23. Bf4 Bxf4 24. Rxf4 Nd6 25. Raf1 c5 {
Van der Wiel,J (2465)-Gligoric,S (2565) Vienna 1980 1-0 (62)}) 11... Be7 12.
Ng3 g6 13. a3 h5 14. b4 Bg4 15. Qe4 f5 16. Qe1 h4 17. Bb2 Bf6 18. Ne2 h3 19. g3
O-O 20. Nec3 Nb7 21. Be2 Bxe2 22. Qxe2 Rae8 23. Qc4 Rf7 24. d3 {Karjakin,S 
(2645)-Socko,B (2615) Merida 2005 1/2-1/2 (37)}) (9... Bd6 10. Nc3 Bg4 11. Nb5
Bxf3 12. Nxc7+ Bxc7 13. gxf3 Nd5 14. h4 h6 15. Nh3 O-O 16. b3 Rad8 17. Ba3 Bd6
18. Bxd6 Rxd6 19. a3 {1/2-1/2 (19) Van der Wiel,J (2465)-Beliavsky,A (2590)
Vienna 1980}) 10. Nc3 O-O 11. Bf5 Bxf5 12. Qxf5 g6 13. Qh3 h5 14. d3 Kg7 15.
Nce4 Nd5 16. O-O Rad8 17. Bd2 c5 18. f4 Nxf4 19. Qh4 Nc6 20. Bxf4 exf4 21. Rxf4
Nd4 22. Rf2 Rd5 23. Raf1 Qd8 {Rossolimo,N-Bogoljubow,E Dortmund 1951 1/2-1/2 
(59)}) (9. Nc3 Bg4 10. Nd5 Nxd5 11. Qxd5 Rd8 12. Qe4 Rd4 13. Qe3 cxb5 14. c3
Rd7 15. O-O h6 16. Ne4 Bf5 17. Ng3 Bd3 18. Re1 Nc6 19. Nh5 Qd8 20. Qf3 e4 21.
Qh3 g6 22. Nf4 Be7 23. b3 O-O {Rogos,J (2163)-Olsar,J (2270) Slovakia 2010 0-1}
) (9. Bd3 h6 10. Ne4 Nd5 $14) 9... h6 {Black threatens to win material: h6xg5}
(9... Bg4 $142 $5 {and Black is still in the game} 10. Qg3 Bxe2 11. Kxe2 h6 $11
) 10. Ne4 $14 {White threatens to win material: Ne4xf6} Be7 (10... Nxe4 11.
Qxe4 Be6 12. O-O $16) 11. O-O (11. Nxf6+ Bxf6 12. Nc3 O-O $16) 11... O-O (11...
Nxe4 12. Qxe4 O-O 13. Re1 $14) 12. Nxf6+ $16 Bxf6 13. d4 (13. d3 $142 $5 $16)
13... exd4 $11 14. Bxh6 d3 {Black threatens to win material: d3xe2. Black
forks: c2+e2} (14... Be5 $5 {should not be overlooked} 15. Bd2 Be6 $11) 15.
Bxd3 $14 Bxb2 16. Bf4 {White threatens to win material: Bf4xc7} Qe7 17. Qh5 {
White has a mate threat} (17. Nd2 $142 $5 Bxa1 18. Rxa1 $16) 17... g6 $11 {
Black threatens to win material: g6xh5} 18. Qh6 $4 (18. Qxa5 $142 {this is the
best bet to save the position} Bxa1 19. Nc3 $11) 18... Bxa1 $19 19. c3 Qf6 (
19... Bb7 $142 {makes it even easier for Black} 20. Bg5 Qe5 21. Nd2 Bxc3 22.
Ne4 $19) 20. Rc1 (20. Be3 {a last effort to resist the inevitable} c5 21. Bxc5
$19) 20... Bf5 21. Bxf5 Qxf5 22. Nd2 (22. Be3 {doesn't change the outcome of
the game} Bb2 23. Rf1 Qh5 $19) 22... Bb2 23. Rf1 Bxc3 24. Nf3 Bg7 25. Qh4 Rfe8
26. Ng5 f6 (26... Nc4 $142 $19 {and Black takes home the point}) 27. Qh7+ $18
Kf8 28. Bd6+ Re7 29. Re1 fxg5 (29... Qxg5 $4 30. Rxe7 Qc1+ 31. Re1+ Kf7 32.
Rxc1 $18) 30. Bxe7+ (30. Rxe7 $142 {and White has triumphed} Qb1+ 31. Re1+ Kf7
32. Rxb1 $18) 30... Kf7 $19 31. Bb4 Re8 32. Bxa5 (32. Rxe8 Kxe8 33. g3 Qb1+ 34.
Kg2 Qxb4 35. Qxg7 Qe4+ 36. Kg1 g4 $19) 32... Rh8 (32... Rxe1+ $142 {secures
victory} 33. Bxe1 Qb1 $19) 33. Re7+ Kxe7 34. Qxg7+ Ke6 35. Be1 $2 (35. h3 $142
$5 Rf8 36. f3 $19) 35... Rd8 (35... Qe4 $142 {keeps an even firmer grip} 36.
Qc3 Rd8 $19) 36. Qc7 (36. a4 Rd1 37. Qc3 Kd6 $19) 36... Rd6 (36... Qe4 $142 {
finishes off the opponent} 37. Kf1 Qc4+ 38. Kg1 Rd1 39. Qc8+ Kf7 40. Qc7+ Kf6
$19) 37. Qc8+ Kd5 (37... Kf7 38. Qb8 Re6 39. Qb7+ Re7 40. Qb3+ Qe6 41. Kf1 $19)
38. Qa6 $2 (38. Qb8 Qe4 39. Qb3+ Kc5 40. Qc3+ Kb6 $17) 38... Qe5 (38... Qe4
$142 {seems even better} 39. Qf1 Qc4 $19) 39. Qd3+ $17 Kc5 40. Qa3+ $4 {
further deteriorates the position} (40. Qb1 $142 Qd4 41. Qb8 $17) 40... Kb6 $19
41. Qb3+ Kc7 42. Kf1 Qb5+ 43. Qxb5 cxb5 44. f3 (44. a3 {is not much help} Rd3
45. Bb4 g4 $19) 44... Kc6 (44... Ra6 $5 {and Black can already relax} 45. a3
Rxa3 46. Bd2 $19) 45. Kf2 (45. Bb4 {does not help much} Rd1+ 46. Kf2 Rb1 $19)
45... Kc5 46. a3 Kc4 47. Bb4 Rd5 (47... Rd3 $5 {makes it even easier for Black}
48. Ke2 $19) 48. Ke2 (48. g3 {doesn't do any good} Rd3 49. Be7 a5 $19) 48...
Kb3 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "2.7"]
[White "Sato, Yasuji"]
[Black "Wada, Katsuhiko"]
[Result "0-1"]
[ECO "C56"]
[WhiteElo "1498"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "80"]
[EventDate "2021.03.27"]

{[%mdl 8192] C56: Two Knights: 4 d4 exd4 5 0-0 Nxe4} 1. e4 e5 2. Nf3 Nf6 3. Bc4
Nc6 4. d4 Nxe4 (4... Bd6 5. dxe5 Bxe5 6. Nxe5 Nxe5 7. Be2 d6 8. Nc3 O-O 9. O-O
Re8 10. Bg5 h6 11. Bd2 c6 12. h3 Be6 13. b3 b5 14. f4 b4 15. Na4 Nxe4 16. fxe5
dxe5 17. Be3 Bd5 18. Qe1 Qe7 19. c4 {Melia,S (2400)-Zhao,X (2543) Batumi 2012
1-0 (40)}) 5. dxe5 d5 $146 (5... Nc5 6. Bf4 (6. O-O Be7 7. Nc3 O-O 8. Be3 Ne6
9. Nd5 Bc5 10. Qe2 Bxe3 11. Qxe3 a6 12. Rad1 Ne7 13. Qe4 Kh8 14. Ne3 Rb8 15.
Bxe6 fxe6 16. Ng5 Nf5 17. Nxe6 Nd6 18. Rxd6 {1-0 (18) Bademian Orchanian,J 
(2235)-Diano,D (2200) Piriapolis 1977}) 6... Ne6 7. Bg3 Be7 8. Nc3 O-O 9. Nd5
Na5 10. Bd3 f5 11. Qd2 Nc6 12. O-O-O a6 13. h4 b5 14. h5 Bb7 15. Nxe7+ Qxe7 16.
Nh4 f4 17. Ng6 hxg6 18. hxg6 Nxe5 19. Rh4 Qg5 20. Rdh1 {Teichmann,R-Marshall,F
London 1902 1/2-1/2 (31)}) (5... Qe7 6. O-O h6 7. Qd5 Ng5 8. Nxg5 hxg5 9. Nc3
Nxe5 10. Bd2 c6 11. Qd4 Qd6 12. Qxd6 Bxd6 13. Rae1 Kd8 14. Bb3 f6 15. Ne4 Be7
16. Nxg5 fxg5 17. Rxe5 Bd6 18. Bxg5+ Kc7 19. Re4 Bxh2+ 20. Kh1 {MacLeod,S 
(2200)-Vassilaropoulos,N (2200) Australia 1973 0-1}) (5... d6 $5 6. Bd5 Nc5 $14
) 6. Bxd5 $16 Be6 $4 {the position is going down the drain} (6... Bf5 7. O-O
$16) 7. Bxc6+ (7. Bxe4 $142 {nails it down} Qxd1+ 8. Kxd1 O-O-O+ 9. Ke1 $18)
7... bxc6 $16 8. O-O Qxd1 9. Rxd1 Bc5 10. Nd4 {White threatens to win material:
Nd4xc6} (10. Be3 $5 $16) 10... O-O-O $11 11. Be3 (11. c3 Bb6 $11) 11... Bxd4
12. Rxd4 Rxd4 13. Bxd4 Rd8 14. f3 {Controls g4} (14. c3 $142 $5 {is noteworthy}
Nxc3 15. Nxc3 Rxd4 16. b3 $11) 14... Rxd4 $17 15. fxe4 Rxe4 16. Nc3 Rxe5 17.
Rd1 Bd5 (17... Bf5 18. Rc1 $17) 18. Kf2 Rg5 19. g3 Rh5 20. h4 Rf5+ 21. Kg1 h5
22. Rd4 g5 (22... Bf3 23. Rd3 $17) 23. hxg5 (23. g4 hxg4 24. Nxd5 cxd5 $15)
23... Rxg5 $15 24. Kf2 Kd7 (24... Rf5+ 25. Ke2 $15) 25. Nxd5 cxd5 {A rook
endgame occured} (25... Rxd5 26. Ra4 $15) 26. Kf3 Rf5+ 27. Rf4 $4 (27. Ke2 $142
$15 {was a good chance to save the game}) 27... Ke6 $19 28. Rxf5 (28. g4 Rxf4+
29. Kxf4 $19) 28... Kxf5 29. c3 (29. b4 {doesn't improve anything} c6 $19)
29... Ke5 30. b4 c6 31. a4 (31. Ke3 $19 {no good, but what else?}) 31... a6 32.
Ke3 Kf5 33. Kf3 (33. Kd4 {does not improve anything} Kg4 34. Kc5 Kxg3 35. Kxc6
d4 36. cxd4 h4 $19) 33... f6 34. a5 Kg5 35. Ke3 Kg4 36. Kf2 f5 37. Kg2 f4 38.
gxf4 Kxf4 39. Kf2 h4 40. Kg2 Ke3 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "2.8"]
[White "Shimomura, Kensei"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "0"]
[BlackElo "1294"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "55"]
[EventDate "2021.03.27"]

{[%mdl 8256] A07: R騁i Opening: New York and Capablanca Systems} 1. Nf3 d5 2.
g3 Nc6 3. Bg2 e5 4. d3 Bf5 (4... f5 5. O-O Nf6 6. a3 Bd6 7. b4 e4 8. Ne1 Be6 9.
Bb2 Qe7 10. c4 dxc4 11. dxe4 fxe4 12. Nc2 O-O-O 13. Qe1 h5 14. b5 Ne5 15. Qa5
h4 16. Bxe5 Bxe5 17. b6 axb6 18. Qxe5 hxg3 19. Nc3 {Todorcevic,M (2465)
-Illescas Cordoba,M (2600) Ponferrada 1992 0-1 (36)}) 5. O-O Qd7 {White has a
cramped position} 6. Nbd2 $146 {White has a cramped position. White's piece
can't move: c1} (6. c4 d4 7. a3 a5 8. Qa4 Ra6 9. Qb5 Rb6 10. Nxe5 Qe6 11. Bxc6+
bxc6 12. Qxa5 Be7 13. Qa8+ Bd8 14. Nf3 c5 15. Qd5 Qxd5 16. cxd5 Nf6 17. e4 dxe3
18. Bxe3 Rxb2 19. Bxc5 Nxd5 20. Re1+ Kd7 {Ortel,E (2283)-Simonyi,Z (2208)
Hungary 2011 1/2-1/2 (62)}) 6... O-O-O 7. e4 (7. c4 $5 Be6 8. b3 $11) 7... dxe4
8. dxe4 Be6 9. b3 {Covers c4} h6 {Black has an active position} (9... Bb4 $5 {
is worth looking at} 10. Qe2 Bg4 $11) 10. Bb2 $11 f6 {Prevents intrusion on g5}
11. Qe2 Bg4 12. Rfd1 Nb4 $2 (12... Nd4 $142 $5 13. Bxd4 exd4 $16) 13. Nc4 $18
Qe8 14. Rxd8+ Qxd8 15. a3 Nc6 16. Rd1 Bd7 17. Qe3 (17. Bh3 Bxh3 18. Rxd8+ Nxd8
$18) 17... Kb8 (17... Qe8 18. b4 a6 19. c3 $18) 18. Nh4 (18. b4 Qe8 19. Qd3 Kc8
$18) 18... Nge7 (18... Qe8 $5 $16) 19. Bh3 $1 $18 {Deflection: d7} Nd4 $4 {
sad, but how else could Black save the game?} (19... Bxh3 20. Rxd8+ {
Deflection Pinning}) 20. Bxd4 Nc6 (20... exd4 {is not the saving move} 21. Rxd4
Nf5 22. Nxf5 $18) 21. Bb2 (21. Bxa7+ $142 {secures the win} Nxa7 22. Rxd7 Qe8
$18) 21... Bd6 22. Nxd6 (22. Bxd7 $142 {and White can already relax} Qxd7 23.
Nf5 Rd8 $18) 22... cxd6 (22... Bxh3 {there is nothing better in the position}
23. Qf3 cxd6 $18) 23. Rxd6 Qc7 (23... Bxh3 {hoping against hope} 24. Rxd8+ Rxd8
$18) 24. Rxd7 Qa5 25. Qd3 g5 26. Qd6+ Ka8 27. Qxf6 gxh4 28. Qxh8+ (28. Qxh8+
Nb8 29. Qc8 Qe1+ 30. Bf1 Qxe4 31. Bxe5 Qg2+ 32. Bxg2 hxg3 33. Qxb8#) 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "3.1"]
[White "Nakamura, Mitsuru"]
[Black "Drakakis, Athanasios"]
[Result "0-1"]
[ECO "D46"]
[WhiteElo "1354"]
[BlackElo "1904"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "102"]
[EventDate "2021.03.27"]

{[%mdl 8192] D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran} 1. d4 d5
2. c4 e6 3. Nf3 Nf6 4. e3 c6 5. Nc3 Bd6 6. Bd3 O-O 7. Qc2 $146 (7. O-O c5 8.
dxc5 Bxc5 9. Qe2 Nc6 10. a3 a5 11. Rd1 Qe7 12. h3 h6 13. b3 b6 14. Bb2 Bb7 15.
cxd5 exd5 16. Nb5 Rac8 17. Nh4 Ne5 18. Nf5 Qe6 19. Nbd4 Bxd4 20. Nxd4 Qe7 21.
Bf5 Nfd7 {Bukal,V (2414)-Piankov,E (2324) Arvier 2006 1-0 (31)}) (7. e4 dxe4 8.
Nxe4 Nxe4 (8... Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 Nbd7 11. O-O Qc7 12. Nxf6+ Nxf6 13.
c5 Rd8 14. Rac1 Bd7 15. Rfd1 Be8 16. Qe3 h6 17. Ne5 b5 18. Bb1 Rd5 19. a3 a5
20. Ba2 Rdd8 21. Qf3 Rxd4 22. Rxd4 Qxe5 23. Qe3 {Colovic,A (2488)-Adam,V (2407)
Novi Sad/Vukovar 2013 1-0 (47)}) 9. Bxe4 f5 (9... h6 10. Bc2 c5 11. O-O Nc6 12.
dxc5 Bxc5 13. Qe2 Qc7 14. a3 a5 15. Bd2 Bd7 16. Rab1 a4 17. Bc3 Rfd8 18. Rbd1
Bf8 19. Qe4 f5 20. Qe2 Na5 21. Ne5 Be8 22. g4 Bd6 23. gxf5 Bxe5 24. Bxe5 {
Sharavdorj,D (2426)-Gunbayar,M (2367) Govi Altai 2014 1-0 (43)}) (9... Bb4+ 10.
Kf1 Nd7 11. Bc2 Qa5 12. Qd3 Qh5 13. h3 f5 14. Bf4 b6 15. a3 Be7 16. Re1 Bf6 17.
Ba4 Bb7 18. Rxe6 Qf7 19. Bxc6 Qxe6 20. Bxb7 Kh8 21. Bxa8 Rxa8 22. g3 {1-0 (22)
Szuk,B (2370)-Zila,L (2230) Budapest 1994}) 10. Bc2 c5 11. O-O cxd4 12. Nxd4 a6
13. Re1 e5 14. Nf3 e4 15. c5 Bxc5 16. Bb3+ Kh8 17. Qxd8 Rxd8 18. Ne5 Rf8 19.
Be3 Bxe3 20. Rxe3 g6 21. Rh3 Kg7 {Kaidanov,G (2595)-Shankland,S (2446) Saint
Louis 2009 1-0 (49)}) 7... h6 {Prevents intrusion on g5} (7... c5 8. dxc5 Bxc5
9. O-O $14) 8. h3 {Controls g4} Nbd7 9. O-O dxc4 10. Bxc4 e5 11. Rd1 Qc7 12.
Be2 Re8 13. e4 exd4 14. Rxd4 {White has an active position.} Ne5 15. Be3 Nxf3+
16. Bxf3 Be5 {Black threatens to win material: Be5xd4} 17. Rd2 {White has an
active position} Be6 18. a3 (18. Ne2 b6 $11) 18... b6 {Secures c5} 19. Rad1
Rad8 20. Qb1 Bb3 21. Re1 (21. Rxd8 Rxd8 22. Rxd8+ Qxd8 $11) 21... Rxd2 $15 22.
Bxd2 Rd8 {Black threatens to win material: Rd8xd2} 23. Be3 Qe7 24. Qc1 Nd7 (
24... Qe6 $15) 25. Ne2 (25. Bd1 Bxd1 26. Rxd1 Bxc3 27. Qxc3 Qxe4 $14) 25... c5
(25... Nc5 26. Rf1 $17) 26. Nf4 Nb8 27. Nd5 {White threatens to win material:
Nd5xe7} Qd6 28. Bf4 Nc6 29. Qe3 (29. Bxe5 $5 {might be a viable alternative}
Qxe5 30. g3 $15) 29... Nd4 $17 (29... Bxd5 $6 30. Bxe5 Nxe5 31. exd5 Nxf3+ 32.
Qxf3 Qxd5 33. Re8+ Kh7 34. Rxd8 Qxd8 35. Qxf7 $11) 30. Rc1 Bxd5 31. Bxe5 Qxe5
32. exd5 Qxe3 33. fxe3 Nxf3+ 34. gxf3 Rxd5 35. Rc2 f5 36. Kf2 Kf7 37. Re2 (37.
b4 Ke6 $17) 37... Rd3 38. Kg3 (38. Rc2 Rb3 $17) 38... g5 39. h4 $4 {the final
mistake, not that it matters anymore} (39. f4 Kg6 $19) 39... Kf6 (39... Rxe3
$142 $1 {and the rest is a matter of technique} 40. Rd2 g4 $19) 40. hxg5+ hxg5
41. Kg2 c4 42. Kf2 Ke5 (42... Ke6 $142 $19) 43. f4+ $4 {shortens the misery
for White} (43. Rc2 $142 Kd5 44. Ke2 $19) 43... gxf4 44. exf4+ Kxf4 45. Re7 (
45. Rc2 {the last chance for counterplay} b5 46. Kf1 $19) 45... Rd2+ 46. Ke1
Rxb2 47. Rxa7 c3 (47... Ke4 $142 {makes it even easier for Black} 48. Kd1 c3
$19) 48. Ra4+ (48. Rc7 {is the last straw} Rb3 49. a4 $19) 48... Ke3 49. Kd1 f4
(49... Kd3 50. Kc1 Rh2 51. Kb1 Rh1+ 52. Ka2 c2 53. Rb4 c1=Q 54. Rd4+ Kxd4 55.
a4 Qc3 56. a5 Ra1#) 50. Rc4 Kd3 51. Rxf4 (51. Rxc3+ {does not save the day}
Kxc3 52. Ke1 f3 53. a4 Kd3 54. Kf1 Ke3 55. Kg1 Rg2+ 56. Kf1 Rg4 57. a5 bxa5 58.
Ke1 Rg1#) 51... Rb1# 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "3.2"]
[White "Nishimori, Toshiyuki"]
[Black "Takahashi, Ryunosuke"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1712"]
[BlackElo "1657"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "40"]
[EventDate "2021.03.27"]

{[%mdl 8192] B33: Sicilian: Pelikan and Sveshnikov Variations} 1. e4 c5 2. Nf3
Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6
gxf6 10. Nd5 Be6 11. Qf3 (11. Bd3 Bg7 12. c3 Bxd5 13. exd5 Ne7 14. Qg4 O-O 15.
Nc2 Qc8 16. Qb4 Ng6 17. Qe4 f5 18. Qxf5 Qxf5 19. Bxf5 Ne7 20. Ne3 Bh6 21. Bc2
Rab8 22. Rd1 a5 23. Nf5 Nxf5 24. Bxf5 b4 25. c4 e4 {Muller,M (2360)-Novik,M 
(2475) Oberwart 1993 0-1 (40)}) (11. c3 f5 12. exf5 Bd7 13. Bd3 h5 14. Nc2 Bg7
15. Nce3 Kf8 16. O-O Rb8 17. Be4 Rh6 18. a4 Qh4 19. g3 Qd8 20. axb5 axb5 21.
Ra6 Qc8 22. Nb6 Qxa6 23. Nxd7+ Kg8 24. Bxc6 Rd8 25. Qd5 h4 {Pierrot,F (2373)
-Aparicio,A (2201) Buenos Aires 2014 1-0}) 11... Bxd5 $146 (11... Bg7 12. c3
Bxd5 13. exd5 Ne7 14. Bd3 Qd7 15. g4 h5 16. Bf5 Nxf5 17. gxf5 Bh6 18. Rg1 Bf4
19. Qe4 Bxh2 20. Rg2 Bf4 21. Ke2 h4 22. Rh1 Kf8 23. Rh3 Rc8 24. Rg4 Bg5 25. Nc2
Rc4 26. Qf3 {Micanek,T (2170)-Varejcko,J (2270) Czechia 2001 0-1 (46)}) (11...
Nd4 $142 $5 {should not be overlooked} 12. Qd3 b4 13. Nxb4 d5 14. Nxd5 Bxd5 15.
exd5 Bxa3 16. bxa3 Qxd5 $11) 12. exd5 $14 Nd4 13. Qd3 b4 14. Nc4 Rc8 15. a4 (
15. Rd1 $142 $5 $14) 15... Rc5 16. Ne3 (16. Rd1 $5 b3 17. cxb3 $11) 16... Bh6
$17 17. c4 bxc3 18. bxc3 Qa5 {Black threatens to win material: Qa5xc3} 19. Nd1
$2 (19. Ra3 $142 $17) 19... Nb3 $19 (19... Rxd5 $6 20. Ra2 Nf5 21. Qb1 $17) 20.
Ra3 $4 {White has lost his nerve... understandable when you consider his
position} (20. Rb1 Bd2+ 21. Ke2 Nc1+ 22. Rxc1 Bxc1 23. Qb1 $19) 20... Bd2+ (
20... Bd2+ 21. Ke2 Nc1+ 22. Kxd2 Nxd3 23. Bxd3 Rxd5 $19) 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "3.3"]
[White "Yoshii, Yukihiko"]
[Black "Sugimoto, Koichi"]
[Result "0-1"]
[ECO "D15"]
[WhiteElo "1797"]
[BlackElo "2008"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "114"]
[EventDate "2021.03.27"]

{[%mdl 8192] D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4} 1.
c4 c6 2. Nc3 d5 3. cxd5 cxd5 4. d4 Nf6 5. Nf3 Nc6 6. e3 a6 7. a3 Bg4 8. Be2 e6
9. Bd2 Bd6 10. h3 Bh5 11. O-O O-O 12. Rc1 Rc8 13. Bd3 $146 (13. b4 Ne4 14. Ne1
Bxe2 15. Nxe2 Bb8 16. Nd3 Qd6 17. g3 b6 18. Be1 Qd7 19. a4 Nd6 20. Qb3 Nc4 21.
Nb2 Nxb2 22. Qxb2 Na7 23. a5 b5 24. Rxc8 Rxc8 25. Nc1 Rc4 26. Nd3 Bd6 27. Bc3
Nc6 {Sahidi,S (2315)-Komliakov,V (2416) Senica 2015 1/2-1/2 (35)}) 13... Bb8
14. g4 (14. Qc2 Qd6 15. g4 Bg6 $17) 14... Bg6 $17 15. Bxg6 hxg6 16. Kg2 Ne4 17.
Nxe4 dxe4 18. Ne1 Qd6 19. Rh1 Rfd8 20. Nc2 e5 21. Bc3 Qe6 (21... exd4 22. Nxd4
Ne5 23. Qe2 $17) 22. Qe2 exd4 (22... f5 $5 23. dxe5 Nxe5 $17) 23. Nxd4 $15 Nxd4
24. Bxd4 Qd6 25. Rcd1 Qc7 26. Rc1 {White threatens to win material: Rc1xc7} Qd6
27. Rcd1 {Twofold repetition} Qc7 28. Rc1 Qxc1 29. Rxc1 Rxc1 30. Qd2 Rcc8 31.
Qb4 b5 (31... Rd7 32. Qa4 Re7 33. Bc3 $11) 32. Qa5 (32. Qe7 Bd6 33. Qb7 Bc5 $16
) 32... Rd6 $14 33. Be5 (33. a4 $5 $14) 33... Re6 34. Bxb8 Rxb8 35. Qc7 Rbe8
36. b4 Rf6 37. Qd7 Ree6 38. g5 {White threatens to win material: g5xf6} Rf5 39.
h4 Kh7 40. Qd8 (40. Kf1 $5 $11 {is interesting}) 40... Rc6 $17 41. Qd2 f6 42.
gxf6 $2 (42. Kg3 $142 $17) 42... Rcxf6 $19 43. Qc2 (43. f4 exf3+ 44. Kf2 $19)
43... Rxf2+ 44. Qxf2 Rxf2+ 45. Kxf2 Kh6 46. Kg3 g5 47. Kg4 gxh4 48. Kxh4 g5+
49. Kh3 Kg6 (49... Kh5 $5 {keeps an even firmer grip} 50. Kg3 g4 51. Kf4 $19)
50. Kg4 Kf6 51. Kg3 Kg6 (51... Kg7 $142 {finishes off the opponent} 52. Kh3 Kh6
$19) 52. Kg4 $11 {Twofold repetition} Kh6 53. Kf5 $4 {ignoring the path to
victory} (53. Kh3 Kh5 54. Kg3 $19) 53... Kh5 $19 54. Kxe4 g4 55. Kf4 Kh4 56. e4
g3 57. Kf3 Kh3 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "3.4"]
[White "Takeuchi, Hiroshi"]
[Black "Shimomura, Kensei"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1354"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "110"]
[EventDate "2021.03.27"]

{[%mdl 8192] A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems} 1. d4 Nf6
2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. b3 (5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. b3 Re8
9. Bc2 c6 10. Bb2 exd4 11. Nxd4 Nc5 12. Qd2 d5 13. cxd5 Nxd5 14. Nxd5 Qxd5 15.
b4 Ne6 16. Bb3 Qd6 {1/2-1/2 (16) Barlov,D (2495)-Smejkal,J (2550) New York 1986
}) 5... d6 $146 {Covers e5} (5... a5 6. Bb2 a4 7. O-O d5 8. c4 c6 9. h3 Qa5 10.
Bc3 Qa7 11. Nbd2 Bf5 12. Qc2 Bxd3 13. Qxd3 Nbd7 14. Rab1 b6 15. Rfd1 Rfd8 16.
Qe2 e6 17. Ne5 Qb7 18. b4 b5 19. c5 Ne8 20. Ndf3 {Mungunkhuu,M (2215)-Morris,J
(2377) Sydney 2014 0-1 (35)}) 6. Nbd2 Nbd7 7. Bb2 b6 8. O-O Bb7 9. Qe2 Re8 10.
e4 c5 (10... e5 11. dxe5 Ng4 12. Rab1 Ngxe5 13. Nxe5 Bxe5 14. Bxe5 Rxe5 15. Qe3
$11) 11. Rfe1 (11. c3 $5 $11 {is noteworthy}) 11... cxd4 $15 12. Bxd4 e5 13.
Bb2 Rc8 14. Rac1 Bh6 15. Qd1 (15. b4 a5 16. a3 d5 $15) 15... Nc5 $17 16. Ra1 d5
{Black threatens to win material: d5xe4} (16... Re6 $142 $17) 17. Bxe5 $4 (17.
exd5 $142 {saving the game} Nxd3 18. cxd3 Nxd5 19. Nxe5 $15) 17... dxe4 $19 18.
Bxf6 (18. Nxe4 {hoping against hope} Ncxe4 19. Bb5 $19) 18... Qxf6 19. Nxe4
Nxe4 20. Bb5 (20. Bxe4 {doesn't do any good} Bxe4 (20... Rxe4 $143 21. Qd7 Rb8
22. Rad1 $19) 21. Qd4 Qf5 $19) 20... Bc6 (20... Red8 $142 {it becomes clear
that Black will call all the shots} 21. Qe2 Nc3 22. Qe7 Qxe7 23. Rxe7 Bxf3 24.
Ba6 $19) 21. Bxc6 Rxc6 22. Qd7 (22. Qd4 {cannot change destiny} Qxd4 23. Nxd4
Rcc8 $19) 22... Rcc8 (22... Rd8 {seems even better} 23. Qb7 Bf8 24. Rad1 Rxd1
25. Rxd1 $19) 23. Rad1 Rcd8 (23... Bf8 $5 {might be the shorter path} 24. Rd3
Rcd8 25. Qa4 $19) 24. Qxa7 Rxd1 25. Rxd1 Ng5 26. Nxg5 Bxg5 (26... Qxg5 $6 27.
Qd7 Re2 28. Qd3 $19) 27. Qa6 Qc6 (27... Qc3 {keeps an even firmer grip} 28. Qd3
Qxd3 29. cxd3 $19 (29. Rxd3 $4 Re1#)) 28. Qd3 Rd8 (28... b5 {makes it even
easier for Black} 29. c4 Rd8 30. Qf3 Rxd1+ 31. Qxd1 bxc4 32. bxc4 Qxc4 33. a4
$19) 29. Qe2 Rxd1+ 30. Qxd1 Be7 (30... b5 {keeps an even firmer grip} 31. g3
$19) 31. h3 Bc5 32. Kf1 (32. Qe2 Qf6 33. a4 Qf4 $19) 32... Qc7 (32... Qf6 {
and Black can already relax} 33. Qe1 Qb2 34. Qe8+ Bf8 35. Qe4 Qxa2 36. g3 $19)
33. g3 (33. Qe2 Qh2 34. Qe4 Qd6 $19) 33... Qc6 34. f3 Qf6 (34... b5 {might be
the shorter path} 35. Kg2 $19) 35. Kg2 (35. a4 Qe5 36. Kg2 h5 $19) 35... Qb2 (
35... b5 {seems even better} 36. a4 bxa4 37. bxa4 $19) 36. a4 Qe5 37. Qf1 (37.
h4 h5 $19) 37... f5 (37... Qe3 {might be the shorter path} 38. Kh2 $19) 38. Kh2
$2 (38. b4 Bd6 39. Qc4+ Kg7 40. f4 $19) 38... f4 39. g4 Qc3 (39... Qe3 $142 {
and Black can already relax} 40. Qd1 $19) 40. Qc4+ (40. Qd1 $19) 40... Qxc4 41.
bxc4 Kf7 42. Kg2 Ke6 43. Kf1 Ke5 44. c3 Kd6 45. Ke2 h5 (45... g5 {seems even
better} 46. Kd3 Bf2 47. Ke4 $19) 46. gxh5 gxh5 47. Kd3 Ke5 48. Ke2 Kf5 49. h4 (
49. Ke1 $19 {what else?}) 49... Ke5 50. Kd3 Bf2 51. Ke2 Bxh4 52. c5 (52. Kd3 {
there is nothing better in the position} Kd6 53. Ke4 $19) 52... bxc5 53. a5 Bd8
54. a6 Bb6 55. Kf2 Kd5 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "3.5"]
[White "Kawamura, Takuto"]
[Black "Al Jbarat, Thamer Mahmmoud Muhammad "]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "0"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "49"]
[EventDate "2021.03.27"]

{[%mdl 8192] A43: Schmid Benoni} 1. d4 e6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5.
e3 $146 {Secures d4} (5. g3 Bb4+ (5... Qb6 6. Nb3 Ne5 7. N1d2 a5 8. e3 Nf6 9.
Be2 d5 10. O-O a4 11. Nd4 Bc5 12. cxd5 exd5 13. Bb5+ Bd7 14. Bxd7+ Nfxd7 15.
N2f3 O-O 16. Rb1 Nc6 17. Nf5 Ne7 18. Nxe7+ Bxe7 19. Qxd5 Nf6 20. Qc4 {Serper,G
(2490)-Wedberg,T (2460) Vienna 1991 1/2-1/2 (37)}) 6. Bd2 Qb6 7. Nb3 Ne5 8.
Bxb4 (8. Qc2 a5 9. Bg2 a4 10. Nc1 Nf6 11. O-O Bxd2 12. Nxd2 O-O 13. c5 Qb5 14.
Qc3 d6 15. cxd6 Ra6 16. Nf3 Nxf3+ 17. Bxf3 Rxd6 18. Nd3 Bd7 19. Qc7 Qb6 20.
Rac1 Bb5 21. Qxb6 Rxb6 22. Ne5 Nd7 {Polugaevsky,L (2620)-Ornstein,A (2425)
Buenos Aires 1978 1-0 (71)}) 8... Qxb4+ 9. Qd2 Qxc4 10. Bg2 Ne7 11. Na3 Qa6 12.
O-O O-O 13. Rac1 d5 14. Rfd1 Qb6 15. Nc5 Nc4 16. Nxc4 Qxc5 17. Ne5 Qb6 18. Qc2
f6 19. Nd3 Bd7 {Langeweg,K (2450)-Wedberg,T (2360) Buenos Aires 1978 0-1 (51)})
(5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Nge7 8. Nc3 O-O 9. b3 b5 10. e4 f5 11. cxb5
axb5 12. Bxb5 fxe4 13. O-O Nf5 14. Qd1 Ncd4 15. a4 Bb7 16. Be3 Nf3+ 17. Kh1 Qc7
18. gxf3 Nxe3 19. fxe3 exf3 {Huebner,R (2595)-Wedberg,T (2425) Luzern 1979 1-0
(36)}) 5... Bc5 6. a3 {Consolidates b4} Qb6 (6... Nf6 7. Be2 $11) 7. Nxc6 (7.
Nb5 a6 8. Nd6+ Bxd6 9. Qxd6 Nh6 $16) 7... bxc6 8. Bd3 Bb7 (8... Nf6 9. Nc3 Qc7
10. b4 $11) 9. b4 $14 Be7 10. c5 {White gains space} Qc7 11. Bb2 {White
threatens to win material: Bb2xg7} Bf6 (11... Nf6 12. Nd2 $14) 12. Qc2 (12. Nc3
Nh6 $16) 12... a5 (12... Bxb2 13. Qxb2 Nf6 14. Nd2 $14) 13. Nc3 $16 axb4 14.
axb4 Rxa1+ 15. Bxa1 {White has a new backward pawn: b4} Ne7 (15... Nh6 16. h3
$16 (16. Bxh7 $143 Ba6 $14)) 16. O-O $16 Ng6 $2 (16... O-O $142 $5 $16) 17. Ne4
$18 e5 $4 {the position was bad, and this mistake simply hastens the end} (
17... Bxa1 18. Nd6+ Ke7 19. Rxa1 Ra8 20. Rxa8 Bxa8 21. Bxg6 hxg6 $18) 18. Nd6+
Ke7 (18... Kd8 {cannot undo what has already been done} 19. Nxf7+ Ke7 20. Bxg6
$18) 19. Qc4 Rf8 20. f4 Nh8 (20... exf4 {does not improve anything} 21. Bxg6
fxg6 22. Qxf4 $18) 21. g4 g6 (21... Kd8 22. g5 Be7 23. Bxe5 f6 24. Nf7+ Rxf7
25. Bxc7+ Kxc7 $18) 22. Qe4 Ra8 23. Bxe5 Bxe5 24. Qxe5+ Kd8 (24... Kf8 {
cannot change what is in store for White} 25. Qxh8+ Ke7 26. Qe5+ Kf8 27. Qf6
Qxd6 28. Qh8+ Ke7 29. cxd6+ Kxd6 30. Qe5#) 25. Qe8# (25. Qf6#) 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "3.6"]
[White "Wada, Katsuhiko"]
[Black "Ikogba, Kelvin"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "0"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "90"]
[EventDate "2021.03.27"]

{[%mdl 8256] A21: English Opening: 1...e5 2 Nc3} 1. c4 e5 2. Nc3 g6 3. e3 $146
(3. Nf3 Bg7 4. g3 (4. d4 exd4 5. Nxd4 Nf6 6. Nc2 O-O 7. g3 Nc6 8. Bg2 d6 9. O-O
Be6 10. b3 Qd7 11. e4 Bh3 12. Qd2 Bxg2 13. Kxg2 Rae8 14. f3 Nh5 15. Ne3 Ne7 16.
Bb2 f5 17. Rad1 fxe4 18. Nxe4 Nf5 {Van Wely,L (2688)-Fritsche,L (2319) Germany
2013 1-0 (142)}) (4. d3 Ne7 5. g3 O-O 6. Bg2 c6 7. O-O d5 8. cxd5 cxd5 9. Bg5
Nbc6 10. Bxe7 Nxe7 11. Qb3 Rb8 12. Nd2 Be6 13. Qa3 b5 14. Qxa7 Qd6 15. f4 exf4
16. gxf4 b4 17. Nd1 Rfc8 18. Nb3 Ra8 {Horvath,J (2153)-Chereches,M (2268)
Hungary 2010 1-0 (47)}) 4... f5 5. d4 e4 6. Ng1 Nc6 7. e3 Nf6 8. Be2 d6 9. h4
Bd7 10. Nh3 Qe7 11. a3 Qf7 12. Nb5 O-O-O 13. d5 Ne5 14. Ng5 Qg8 15. Nd4 h6 16.
Nge6 Re8 17. b4 Nh7 {Knizek,J (2214)-Varejcko,J (2335) Czechia 2000 0-1 (39)})
(3. d4 Bg7 4. dxe5 Bxe5 $14) 3... Bg7 4. Nf3 d6 5. d4 exd4 6. Nxd4 (6. exd4 $5
Ne7 7. Be2 $11) 6... Nf6 $11 7. g3 Bd7 8. Bg2 c6 {Covers b5} (8... Nc6 9. O-O
$11) 9. Qb3 {White threatens to win material: Qb3xb7} (9. e4 Ng4 10. O-O Ne5
$14) 9... Qc7 $11 10. e4 O-O 11. Bf4 Nh5 12. Be3 {Black has a cramped position}
Na6 13. O-O-O Nc5 {Black threatens to win material: Nc5xb3} 14. Qc2 Bxd4 (14...
a6 $142 $5 $11 {deserves consideration}) 15. Bxd4 {White has the pair of
bishops} (15. Rxd4 f5 16. Rhd1 fxe4 17. Nxe4 Nxe4 18. Qxe4 Rae8 $16) 15... Rfe8
(15... Be6 16. Bf3 $16) 16. f3 (16. Bf3 Be6 17. Bxh5 gxh5 $16) 16... a6 (16...
f5 $5 $16) 17. Qd2 $18 b5 $4 {leading to a quick end} (17... Be6 $142 18. g4
Ng7 $16) 18. g4 (18. Bxc5 {makes it even easier for White} dxc5 19. Qxd7 Qa5
$18) 18... Ng7 (18... b4 19. gxh5 bxc3 20. Bxc3 Na4 $18) 19. Qh6 (19. Bxc5 $142
{and White has reached his goal} dxc5 20. Qxd7 Qf4+ 21. Kb1 $18) 19... Nce6 20.
Bf1 $4 {hands over the advantage to the opponent} (20. Bf2 $142 Reb8 21. f4 $16
) 20... Nxd4 $17 21. Rxd4 c5 $4 {gives the opponent new chances} (21... Ne6
$142 22. Rd1 b4 $17) 22. Rd2 $16 b4 (22... Ne6 23. f4 Nf8 $18) 23. Nb1 $4 {
White loses the upper hand} (23. Nd5 $142 {and White gets the upper hand} Qd8
24. h4 $18) 23... Be6 (23... Ne6 24. h4 $17) 24. b3 (24. h4 Bc8 $11) 24... a5 (
24... Bd7 $15) 25. Qe3 (25. h4 Re7 26. h5 $16) 25... a4 $17 26. Rg1 (26. h4 $5
Bc8 27. Bh3 $17) 26... axb3 27. Qxb3 (27. axb3 Bc8 $17) 27... Reb8 (27... Bd7
28. Qd3 Ra6 29. h4 $19) 28. Qb2 $2 (28. f4 Re8 $17) 28... Ra7 (28... Bd7 $5 {
and Black can already relax} 29. Be2 $19) 29. Rgg2 Rba8 30. Qf6 Ne8 (30... Ra6
31. h4 Bc8 32. Qg5 $19) 31. Qf4 Qb8 (31... Qe7 32. Qg3 $19) 32. Qe3 (32. h4 Qc7
$17) 32... Ra4 (32... Bd7 33. f4 $19) 33. Qb3 (33. h4 $5 $17) 33... Nf6 34. g5
Nd7 35. f4 Nb6 (35... Qb7 36. Qf3 $17) 36. f5 $2 (36. Rgf2 $142 $15 {would
keep White alive}) 36... gxf5 $19 37. exf5 Bxf5 38. Qf3 $2 (38. Rgf2 $142 Be4
39. Be2 $19) 38... Bxb1 39. Kxb1 b3 $1 {Decoy: b3} 40. axb3 (40. axb3 Ra1+ 41.
Kb2 (41. Kc2 Nd7 {Combination}) 41... d5 {Combination}) (40. Qxb3 Rb4 {Decoy
Pinning}) 40... Ra1+ 41. Kc2 R1a2+ (41... Nd7 $142 {and Black wins} 42. Qc3 Ne5
43. Qxa1 Rxa1 $19) 42. Kd1 (42. Kb1 Rxd2 43. Rxd2 d5 $15) 42... Rxd2+ 43. Rxd2
$2 (43. Kxd2 $142 {had to be tried to avoid defeat} Nd7 44. Qc3 $17) 43... Ra1+
$19 44. Ke2 (44. Kc2 {praying for a miracle} Qa7 45. Kd3 Nxc4 46. bxc4 Ra3+ 47.
Ke2 Qe7+ 48. Kf2 Rxf3+ 49. Kxf3 $19) 44... Qe8+ 45. Kf2 (45. Kd3 {no good, but
what else?} Nxc4 $1 {Decoy: c2} 46. Qf6 Nxd2 47. Qxa1 Nxf1 48. Qf6 $19) 45...
Qe1+ (45... Qe1+ 46. Kg1 Qxd2 $19) 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "3.7"]
[White "Watanabe, Katsumi"]
[Black "Sato, Yasuji"]
[Result "1/2-1/2"]
[ECO "C58"]
[WhiteElo "1604"]
[BlackElo "1498"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "117"]
[EventDate "2021.03.27"]

{[%mdl 8256] C58: Two Knights: 4 Ng5 d5 5 exd5 Na5 sidelines} 1. e4 e5 2. Nf3 {
White threatens to win material: Nf3xe5} Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 {
Black threatens to win material: Na5xc4} 6. Bb5+ c6 7. dxc6 Nxc6 (7... bxc6 8.
Qf3 Be7 9. Nc3 $11) 8. O-O {White castles and improves king safety} (8. Bc4 $5
Bc5 9. Bxf7+ (9. Nxf7 $143 Bxf2+ 10. Kf1 Qd4 $15) 9... Ke7 10. Bb3 $14) 8... h6
$14 {Black threatens to win material: h6xg5} 9. Nf3 {White threatens to win
material: Nf3xe5} Bd6 10. d4 exd4 (10... e4 11. Ne5 Qc7 12. Bf4 $14) 11. Nxd4 (
11. Re1+ Be6 12. Nxd4 O-O 13. Nxe6 fxe6 14. Bxc6 bxc6 $16) 11... Qc7 (11... O-O
$142 {and Black hangs on} 12. Nf3 Bf5 $11) 12. Re1+ $16 Kf8 13. Bxc6 (13. h3
Nxd4 14. Qxd4 Bf5 $16) 13... Bxh2+ $14 14. Kf1 (14. Kh1 $5 bxc6 15. Nc3 $14)
14... bxc6 $11 15. Qd3 Bb7 16. Nc3 Rd8 17. Qc4 {[%cal Rc4c6,Rd4c6,Gb7c6,Gc7c6]
Attacks the isolani on c6} c5 18. Nf3 Bxf3 19. gxf3 Qc6 20. Re3 {Black has an
active position} (20. Kg2 $5 {should be investigated more closely} Bd6 21. b4
$14) 20... Rd4 $11 {Black threatens to win material: Rd4xc4} 21. Qb5 {White
threatens to win material: Qb5xc6} Qc8 {White has a cramped position. White's
piece can't move: c1} 22. Ke2 (22. Ne4 Nxe4 23. Rxe4 a6 $11) 22... Bf4 {
Black threatens to win material: Bf4xe3} (22... g6 23. b3 Bf4 24. Rd3 Bxc1 25.
Rxc1 $17) 23. Na4 {[%cal Ra4c5,Rb5c5,Gc8c5] The isolani on c5 becomes a target}
(23. Rd3 $142 $5 {is worth looking at} g6 24. Rxd4 cxd4 25. Bxf4 dxc3 26. Be5
cxb2 27. Bxb2 $11) 23... Bxe3 $17 24. Bxe3 Rd8 (24... Rd5 $142 $17) 25. Bxc5+
$2 (25. Qxc5+ $142 Kg8 26. Qxc8 Rxc8 27. c3 $17) 25... Kg8 $19 26. Nc3 Kh7 (
26... h5 27. Bxa7 h4 28. Rd1 Rxd1 29. Kxd1 $19) 27. Be3 (27. Bxa7 $5 Rd7 28.
Be3 $17) 27... Rhe8 28. Qb3 (28. Rd1 a6 29. Rxd8 Rxd8 $19 (29... Qxd8 $6 30.
Qxa6 Kg8 31. Qc4 $15)) 28... Kg8 29. Rg1 (29. Rd1 Rxd1 30. Kxd1 Qf5 $19) 29...
Nh5 (29... Qf5 $142 {seems even better} 30. Qa4 h5 $19) 30. Qb5 $4 {sad, but
how else could White save the game?} (30. Rg4 $142 $19) 30... Nf4+ 31. Ke1 Qh3
32. Ne2 (32. Rg4 {doesn't improve anything} Qh1+ 33. Qf1 Qxf3 34. Rxf4 Qxf4 $19
) 32... Ng2+ (32... Qf1+ $1 33. Kxf1 Rd1#) 33. Rxg2 $19 Qxg2 34. Nd4 (34. Nc3 {
is not much help} Qxf3 35. Qc4 Re6 $19) 34... Qh1+ 35. Ke2 Re6 $1 {Deflection:
d4} 36. c3 (36. Nxe6 Qd1# {Mate attack Deflection Pinning}) 36... Rb6 37. Qa5
Rxb2+ 38. Kd3 Qd1+ 39. Kc4 Rc8+ 40. Kd5 Rb6 41. Qxa7 Rd8+ (41... Rb5+ 42. Kd6
Qd3 43. Qd7 Rbc5 44. Qxc8+ Rxc8 45. Bd2 Qxd2 46. Ke5 Re8+ 47. Kd5 Rd8+ 48. Kc4
Rc8+ 49. Kb5 Qxc3 50. Ka6 Rb8 51. Nc6 Qxc6+ 52. Ka5 Qb5#) 42. Ke4 (42. Kc5 {
the only chance to get some counterplay} Rbb8 43. Bf4 $19) 42... Qb1+ 43. Ke5
f6+ (43... g5 44. Qxb6 Qxb6 45. Bxg5 hxg5 46. Kf5 Qc5+ 47. Kg4 Qxc3 48. Nf5 Qe5
49. Ne7+ Qxe7 50. Kg3 Qe5+ 51. Kg2 Rd2 52. a3 Qd4 53. Kg3 Qh4+ 54. Kg2 Rxf2+
55. Kg1 Qh2#) 44. Kf4 Rbd6 45. Qc7 (45. Nf5 {a fruitless try to alter the
course of the game} g5+ 46. Kg3 Qxf5 $19) 45... g5+ (45... Qg1 $142 {keeps an
even firmer grip} 46. Qc4+ Rd5 47. Qxd5+ Rxd5 48. Ke4 $19) 46. Kg4 (46. Kg3 {
doesn't change anything anymore} Qg1+ (46... Qxa2 $6 {is a bad alternative} 47.
Nf5 R6d7 48. Qc6 $19) 47. Kh3 h5 $19) 46... Qg1+ (46... h5+ 47. Kh3 Qh1+ 48.
Kg3 Qg1+ 49. Kh3 g4+ 50. fxg4 Qh1+ 51. Kg3 h4+ 52. Kf4 Rxd4+ 53. cxd4 Qh2+ 54.
Ke4 Qxc7 55. Kf5 Re8 56. g5 Qe7 57. Kg4 Qe4+ 58. Bf4 f5+ 59. Kh5 Qf3+ 60. Kh6
Re6+ 61. g6 Qxf4+ 62. Kh5 Kg7 63. d5 Qg4#) 47. Kf5 (47. Kh3 {does not win a
prize} h5 48. Qe7 $19) 47... Qb1+ {Black forks: a2} 48. Kg4 Qg1+ {Twofold
repetition} (48... h5+ 49. Kxh5 R6d7 50. Qxd7 Rxd7 51. Kg4 Rh7 52. Bxg5 fxg5
53. Ne2 Qxa2 54. f4 Qxe2+ 55. f3 Qe6+ 56. Kg3 Qe1+ 57. Kg4 Kf7 58. fxg5 Rh4+
59. Kf5 Qe6#) 49. Kf5 R8d7 (49... h5 $142 {and Black can already relax} 50.
Qc4+ Rd5+ 51. Ke6 R8d6+ 52. Ke7 Rd7+ 53. Ke6 R5d6+ 54. Kf5+ Kh7 $19) 50. Qc8+ (
50. Qc4+ {doesn't get the bull off the ice} Kh7 51. Ne6 $19) 50... Kg7 (50...
Kf7 51. Qc4+ Rd5+ 52. Qxd5+ Rxd5+ 53. Ke4 Ra5 54. Nb5 Qb1+ 55. Kd4 Qxb5 56.
Bxg5 Qd7+ 57. Ke3 Re5+ 58. Kf4 Qh3 59. Bxf6 Kxf6 60. a4 Qh4#) 51. Ne6+ $11 Kh7
52. Nf8+ {White forks: d7} Kg7 {Black has a mate threat} 53. Nxd7 $4 {lets it
slip away} (53. Ne6+ $142 {would hold out} Kh7 54. Nf8+ Kg7 55. Ne6+ $11 (55.
Nxd7 {leads to a non-trivial mate} Qb1+ 56. Kg4 h5+ 57. Kg3 Qg1+ 58. Kh3 Qh1+
59. Kg3 h4+ 60. Kg4 Qg2+ 61. Kf5 Qxf3+ 62. Bf4 Qxf4#)) 53... Qb1+ 54. Kg4 f5+ (
54... h5+ 55. Kg3 Qg1+ 56. Kh3 Qh1+ 57. Kg3 h4+ 58. Kg4 Qg2+ 59. Kf5 Qxf3+ 60.
Bf4 Qxf4#) 55. Kh3 Qh1+ 56. Kg3 Qg1+ 57. Kh3 Qh1+ {Twofold repetition} (57...
g4+ 58. fxg4 Qxg4+ 59. Kh2 Qh5+ 60. Kg3 Rg6+ 61. Bg5 Qxg5+ 62. Kf3 Qg4+ 63. Ke3
Re6+ 64. Kd3 Rd6+ 65. Kc2 Qa4+ 66. Kb1 Rd1+ 67. Kb2 Rd2+ 68. Kb1 Qd1#) 58. Kg3
$19 Qg1+ 59. Kh3 1/2-1/2

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.27"]
[Round "3.8"]
[White "Ito, Katsuhide"]
[Black "Hayashi, Ryota"]
[Result "1-0"]
[ECO "C48"]
[WhiteElo "1294"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "67"]
[EventDate "2021.03.27"]

{[%mdl 8192] C48: Four Knights: 4 Bb5, replies other than 4...Bb4} 1. e4 e5 2.
Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Bc5 5. Nxe5 Bxf2+ 6. Kxf2 Nxe5 7. h3 $146 (7. d4 Ng6
(7... Neg4+ 8. Kg1 c6 9. Be2 d6 10. h3 Nh6 11. Bxh6 (11. Bg5 Qe7 12. Qd2 O-O
13. Bd3 Kh8 14. Bxh6 gxh6 15. Qxh6 Ng8 16. Qf4 Bd7 17. Kh2 f6 18. Rhf1 Rf7 19.
Rae1 Raf8 20. Ne2 Rg7 21. Ng3 Rg5 22. e5 dxe5 23. dxe5 Qg7 24. e6 Be8 25. Nf5
Rxf5 {Udovichenko,N (2226)-Kravchenko,V (2402) Krasnodar 2002 1/2-1/2 (36)})
11... gxh6 12. Qd2 Qe7 13. Qf4 d5 14. exd5 Nxd5 15. Nxd5 cxd5 16. Kh2 Be6 17.
Bb5+ Kd8 18. Rhe1 a6 19. Bd3 Kd7 20. Re5 Rae8 21. c4 Qd6 22. cxd5 {Barbosa,E 
(2446)-Ayala Pena,E (2190) Katowice 2014 1-0}) 8. e5 c6 9. Bd3 Nd5 10. Nxd5
cxd5 11. h4 d6 12. h5 Nf8 13. h6 g6 14. exd6 Qxd6 15. Qf3 f6 16. Bf4 Qd8 17. c4
Ne6 18. cxd5 Nxf4 19. Qxf4 Qxd5 20. Rhe1+ Kf8 21. Rac1 Bf5 {Sanchez,J (2486)
-Arata,R (2178) Imperia 2008 1-0}) (7. d4 $142 $5 Ng6 8. e5 $16) 7... O-O 8. d4
Ng6 9. e5 {White threatens to win material: e5xf6} Ne8 {Black has a cramped
position. Black's pieces can't move: c8+e8} 10. Rf1 a6 {Black threatens to win
material: a6xb5} 11. Bc4 {Black has a cramped position. Black's pieces can't
move: c8+e8} b5 {Black threatens to win material: b5xc4} (11... d6 12. Kg1 $11)
12. Be2 (12. Bb3 $5 d6 13. Qf3 $14) 12... Bb7 $11 {Black's piece can't move: e8
} 13. Kg1 d6 14. Be3 dxe5 15. d5 (15. dxe5 $5 {has some apparent merit} Qe7 16.
Qd4 $11) 15... f5 16. Bc5 Rf7 17. Bh5 Nf6 {[%cal Rb7d5,Rd8d5,Rf6d5,Gc3d5,Gd1d5]
Increases the pressure on d5. Black threatens to win material: Nf6xd5} (17...
Qd7 18. Qe2 Nf6 19. Bxg6 hxg6 20. Qxe5 $17) 18. Rxf5 $11 Nxd5 (18... Nxh5 $5 {
is worth consideration} 19. Qxh5 Bxd5 20. Rxf7 Bxf7 $15) 19. Rxf7 $14 Nxc3 $4 (
19... Kxf7 $142 {the rescuing straw} 20. Qf3+ Kg8 $14) 20. Qxd8+ $18 (20. bxc3
{is impossible} Kxf7 21. c4 Qe8 $15) 20... Rxd8 21. Bxg6 hxg6 22. Raf1 (22.
Rxc7 $142 $5 {keeps an even firmer grip} Ne4 23. Be7 Rb8 $18) 22... Ne2+ $2 (
22... Rd2 $142 23. R7f2 Ne2+ 24. Kh2 Rxc2 $16) 23. Kh2 $18 Nf4 24. Rxc7 Bxg2
25. Re1 (25. Rxf4 $142 {might be the shorter path} exf4 26. Kxg2 Rd2+ 27. Bf2
$18) 25... Rd2 $4 {another bit of territory lost} (25... Bxh3 $142 26. Rxe5 Bf5
$16) 26. Be3 $18 Rd8 (26... Rxc2 {does not help much} 27. Rxc2 Bxh3 28. Bxf4
$18) 27. Bxf4 exf4 28. Kxg2 Rd2+ (28... Kh7 {is not the saving move} 29. Kf3
$18) 29. Kf3 g5 (29... Rh2 {is no salvation} 30. Kxf4 g5+ 31. Kg3 $18) 30. Ree7
Rd1 (30... Kh8 $18 {there is nothing else anyway}) 31. Rxg7+ Kf8 32. Kg4 Rg1+ (
32... Rd6 {does not solve anything} 33. Kxg5 Re6 34. Rcf7+ Ke8 35. Rh7 a5 36.
Ra7 Re5+ 37. Kf6 Re6+ 38. Kxe6 f3 39. Ra8#) 33. Kf5 f3 (33... Rd1 {doesn't get
the cat off the tree} 34. Kg6 Rd6+ 35. Kh7 Rh6+ 36. Kxh6 f3 37. Rc8#) 34. Kf6 (
34. Kf6 Re1 35. Rcf7+ Ke8 36. Rg8#) (34. Kg6 Re1 35. Rcf7+ Ke8 36. Rg8#) 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "4.1"]
[White "Drakakis, Athanasios"]
[Black "Takahashi, Ryunosuke"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "1904"]
[BlackElo "1657"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "98"]
[EventDate "2021.03.27"]

{A85: Dutch Defence: 2 c4 Nf6 3 Nc3} 1. d4 f5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5.
Qc2 O-O 6. g3 $146 (6. e4 Nxe4 7. Nxe4 fxe4 8. Qxe4 Bb4+ 9. Bd2 Bxd2+ 10. Nxd2
d5 11. Qe3 c5 12. dxc5 d4 13. Qe4 Na6 14. Nb3 Qf6 15. Qxd4 e5 16. Qd2 Be6 17.
O-O-O Rad8 18. Qe1 Qf4+ 19. Qe3 Rxd1+ 20. Kxd1 Qxf2 {Woodward,T (2313)-Bernard,
J (2252) Budapest 2005 1/2-1/2 (36)}) (6. h3 d5 (6... Nc6 7. Bg5 Ne4 8. Bxe7
Qxe7 9. e3 Nxc3 10. Qxc3 d6 11. O-O-O b6 12. Bd3 {1/2-1/2 (12) Ram,S (2228)
-Girinath,P (2333) Bhopal 2013}) 7. Bf4 Nc6 8. e3 Nb4 (8... Bd6 9. Bg5 Kh8 10.
c5 Be7 11. Bb5 Bd7 12. Bxc6 Bxc6 13. Ne5 Be8 14. Ne2 Nd7 15. Bxe7 Qxe7 16. a3
g5 17. h4 g4 18. Nf4 Nxe5 19. dxe5 Bb5 20. a4 Ba6 21. Qc3 c6 22. a5 Qf7 23. Kd2
{Kunte,A (2487)-Girinath,P (2333) Bhopal 2013 1-0 (95)}) 9. Qb3 b6 10. a3 dxc4
11. Bxc4 Nbd5 12. Be5 c6 13. g4 Ne4 14. Nxe4 fxe4 15. Nd2 b5 16. Be2 Qa5 17.
Bg3 Bd7 18. Qd1 c5 19. dxc5 Bf6 20. Qc1 b4 {Stefanova,A (2483)-Hoang,T (2470)
Dresden 2007 1-0 (47)}) 6... c6 {Consolidates b5+d5} (6... c5 7. d5 $14) 7. Bg2
$14 d5 8. c5 {White gets more space} b6 9. cxb6 (9. Na4 $5 $11 {looks like a
viable alternative}) 9... axb6 $15 10. O-O Bd6 (10... c5 11. a3 $15) 11. Bg5
Nbd7 (11... c5 12. b4 Nc6 13. bxc5 bxc5 14. dxc5 Bxc5 15. Bxf6 gxf6 16. Nb5 $11
) 12. Rfc1 (12. Nxd5 $142 cxd5 13. Qc6 $16) 12... Bb7 $11 13. e3 {Controls f4}
h6 14. Bf4 Bxf4 15. exf4 Ne4 16. Re1 Qf6 17. Nxe4 fxe4 ({Worse is} 17... dxe4
18. Ne5 Nxe5 19. dxe5 $14) 18. Ne5 Nxe5 19. dxe5 Qe7 20. Qe2 Rfc8 21. Qg4 c5
22. h4 (22. f3 exf3 23. Qxf3 Bc6 $15) 22... b5 $17 23. Bh3 Re8 24. Qg6 Qf7 25.
Qxf7+ Kxf7 26. Bf1 (26. a3 c4 $17) 26... c4 27. Red1 b4 28. Rd4 (28. b3 c3 29.
Rd4 Bc6 $15) 28... Rec8 (28... Reb8 29. h5 $19) 29. Be2 (29. b3 Ra3 $17) 29...
Bc6 30. Bd1 Bb5 (30... Ba4 31. b3 Bxb3 32. Bxb3 cxb3 33. Rxb4 Rxa2 34. Rb1 $19)
31. f5 (31. b3 Rcb8 $17) 31... Rd8 (31... Rc5 32. Bg4 exf5 33. Bxf5 $19) 32.
Bg4 (32. g4 $142 $5 $17) 32... exf5 $19 33. Bxf5 Bd7 34. Bxe4 (34. Bxd7 Rxd7
35. f3 exf3 $19) 34... dxe4 35. Rxc4 Rdb8 (35... b3 {makes it even easier for
Black} 36. a3 Rac8 37. Rxe4 $19) 36. Rd1 $2 (36. Rxe4 $142 $5 Be6 37. f3 $17)
36... Bf5 $19 37. Rdd4 (37. Rc7+ Kg8 38. Ra1 Rb5 $19) 37... Rxa2 38. Rxb4 (38.
g4 {cannot change what is in store for White} Bxg4 39. Rxe4 Bf5 40. e6+ Kf6 $19
) 38... Rxb2 39. Rxb8 Rxb8 40. g4 Bxg4 41. Rxe4 Bf5 42. Ra4 Rb7 43. Kg2 Kg6 44.
Kg3 (44. Ra6+ {does not save the day} Kh5 45. Kg3 Bc8 $19) 44... Kh5 (44... Be6
{seems even better} 45. Kf4 $19) 45. Ra5 (45. f3 {doesn't change the outcome
of the game} Rb3 $19) 45... Re7 (45... Rb3+ {might be the shorter path} 46. f3
$19) 46. Kf4 (46. f3 $19) 46... Be6 47. Kg3 Kg6 48. f4 (48. Kf4 {hardly
improves anything} Rf7+ 49. Kg3 Rd7 $19) 48... Kf5 49. Kf3 Rc7 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "4.2"]
[White "Sugimoto, Koichi"]
[Black "Nakamura, Mitsuru"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2008"]
[BlackElo "1354"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "44"]
[EventDate "2021.03.27"]

{[%mdl 8192] D30: Queen's Gambit Declined: Systems without Nc3} 1. d4 d5 2. c4
c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 c5 6. b3 b6 (6... Nc6 7. Bb2 cxd4 8. exd4 Ne4 9.
Bd3 Bb4 10. O-O Nxd2 11. Nxd2 dxc4 12. Nxc4 O-O 13. Be4 Ne7 14. Qd3 Ng6 15.
Rfd1 Rb8 16. d5 exd5 17. Qd4 f6 18. Ne3 Qa5 19. Qxd5+ Qxd5 20. Nxd5 Ba5 21. Bd4
{Karpov,A (2760)-Kaidanov,G (2640) Tilburg 1993 1/2-1/2 (48)}) 7. Bb2 Nbd7 8.
Bd3 $146 (8. cxd5 exd5 9. Bd3 Bb7 10. O-O Bd6 11. dxc5 Bxc5 12. Nd4 O-O 13. Nf5
g6 14. Nh6+ Kg7 15. Ng4 Kg8 16. Nxf6+ Nxf6 17. Nf3 Ne4 18. Rc1 Qe7 19. Nd4 Rac8
20. Qe2 Bd6 21. Nb5 Bb8 22. Ba3 Nc5 {Sherbakov,R (2580)-Beshukov,S (2435)
Krasnodar 1997 1-0 (48)}) 8... Bd6 9. O-O O-O 10. e4 dxe4 {Black forks: d3+f3}
(10... cxd4 11. cxd5 (11. Bxd4 $143 e5 $17) (11. Nxd4 Nc5 12. Bc2 Nfxe4 $11)
11... Nc5 12. Nc4 exd5 13. Nxd6 dxe4 14. Nxe4 (14. Nxc8 $2 {fails to} Nxd3 (
14... exd3 $6 15. b4 $11) (14... Rxc8 $6 15. Bxe4 Ncxe4 16. Nxd4 $11) 15. Qd2
Qxc8 (15... exf3 $143 16. Qxd3 fxg2 17. Rfc1 Rxc8 18. Qxd4 $17) 16. Nxd4 Rd8
$19) 14... Nfxe4 15. Bxe4 Nxe4 16. Nxd4 $11) 11. Nxe4 $14 Qc7 12. Nxd6 Qxd6 13.
dxc5 Qxc5 14. a4 Re8 15. Ba3 {White threatens to win material: Ba3xc5} Qc7 (
15... Qh5 $5 $14) 16. Bd6 $16 Qc6 (16... Qxd6 $4 {the bishop is invulnerable}
17. Bxh7+ $1 {Discovered attack: d3, Qd1xd6} Kxh7 18. Qxd6 $18) 17. Ne5 $4 {
weakening the position} (17. b4 $142 $16) 17... Nxe5 $15 (17... Qxd6 $4 {
Black will lose if he goes for the bishop} 18. Bxh7+ {Discovered attack: d3,
Qd1xd6} Kxh7 19. Qxd6 $18) 18. Bxe5 Bb7 {Black has a mate threat} 19. f3 $4 {
strolling merrily down the path to disaster} (19. Qf3 $142 Qxf3 20. gxf3 Bxf3
21. Rfe1 $15) 19... Ng4 {Black threatens to win material: Ng4xe5} (19... Qc5+
$142 {and Black can celebrate victory} 20. Rf2 Qxe5 $19) 20. Bd4 $4 {a transit
from better to worse} (20. Be4 $142 Qc5+ 21. Bd4 $14) 20... Rad8 $17 21. Be4 $4
{another step towards the grave} (21. c5 $142 bxc5 22. Bb5 $17) 21... Qc7 $19
22. Bxb7 (22. Bxh7+ {is one last hope} Kxh7 23. fxg4 $19) 22... Qxh2# 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "4.3"]
[White "Shimomura, Kensei"]
[Black "Kawamura, Takuto"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "0"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "34"]
[EventDate "2021.03.27"]

{[%mdl 8192] A07: R騁i Opening: New York and Capablanca Systems} 1. Nf3 Nf6 2.
g3 g6 3. Bg2 Bg7 4. O-O d5 (4... c5 5. c4 d5 6. cxd5 Nxd5 7. Qa4+ Nc6 8. Nc3
O-O 9. Qc4 Nxc3 10. dxc3 b6 11. Qh4 Bb7 12. Bh6 Bf6 13. Bg5 Bg7 14. Rad1 Qc7
15. Bf4 e5 16. Bh6 f6 17. Bxg7 Kxg7 18. Qa4 a5 19. h4 {Sharashenidze,A (2308)
-Krejci,J (2489) Czechia 2012 1-0 (34)}) 5. d3 b6 6. Nbd2 Bb7 7. b3 $146 (7. e4
dxe4 8. dxe4 Nfd7 9. Re1 Nc5 10. e5 Nc6 11. b3 a5 12. a3 Qd7 13. Bb2 Rd8 14.
Qe2 O-O 15. Rad1 Qc8 16. h4 Qa8 17. h5 Bh6 18. hxg6 hxg6 19. Qc4 Ne6 20. Bh3
Bc8 21. Ne4 Rxd1 {Movsziszian,K (2450)-Krivoshey,S (2430) Berga 1996 1-0 (43)})
(7. e4 Nc6 $11) 7... Ne4 8. Rb1 $4 {allows the opponent back into the game} (8.
d4 $142 $11 {and White could well hope to play on}) 8... Nc3 $19 9. Qe1 Nxb1
10. Nxb1 d4 (10... O-O 11. c4 $19) 11. e3 c5 12. Ba3 (12. a4 O-O $17) 12... Nc6
$19 13. exd4 Nxd4 (13... cxd4 14. Bb2 $19) 14. Nxd4 $17 Bxg2 15. Nc6 $4 {
White crumbles in face of a dire situation} (15. Ne6 $142 fxe6 16. Kxg2 Qd5+
17. f3 $17) 15... Bxc6 $19 16. c4 (16. Bc1 $19 {desperation}) 16... Qxd3 17. b4
Qf3 (17... Qf3 18. Qxe7+ Kxe7 19. Re1+ Kd7 20. Kf1 Rae8 21. Re4 Rxe4 22. bxc5
Qh1#) 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "4.4"]
[White "Nishimori, Toshiyuki"]
[Black "Watanabe, Katsumi"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "1712"]
[BlackElo "1604"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "88"]
[EventDate "2021.03.27"]

{[%mdl 8192] C41: Philidor Defence} 1. e4 e5 2. Nf3 d6 3. h3 Nf6 (3... Bd7 4.
Bc4 Be7 5. d4 Nc6 6. dxe5 Nxe5 7. Nxe5 dxe5 8. Qf3 Nf6 9. Bg5 Bc6 10. Bxf6 Bxf6
11. Nd2 O-O 12. O-O-O Qd4 13. c3 Qc5 14. Kb1 b5 15. Be2 a5 16. Nb3 Qe7 17. h4
a4 18. Na1 {Zharkov,A (2251)-Smirnov,A (2404) Gornozavodsk 2007 0-1}) 4. Nc3
Be7 5. Bc4 (5. d4 exd4 6. Nxd4 O-O 7. Bc4 c6 8. O-O Re8 9. Re1 Bf8 10. Bb3 Nbd7
11. f3 Nc5 12. Bg5 Be7 13. Nce2 Nxb3 14. axb3 d5 15. e5 Nd7 16. Bxe7 Qxe7 17.
f4 {1/2-1/2 (17) Vincze,R (2187)-Fendrik,L (2198) Hungary 2007}) 5... O-O 6. d3
$146 (6. O-O c6 7. Bb3 b5 8. a3 a6 9. d3 Bb7 10. Kh1 Nbd7 11. Nh2 d5 12. exd5
cxd5 13. d4 exd4 14. Qxd4 Bc5 15. Qh4 d4 16. Ne2 Qb6 17. f3 Nd5 18. Rd1 d3 19.
Rxd3 Bf2 20. Qg5 Nc5 {Zelenika,D (2269)-Sertic,R (2330) Croatia 2005 0-1 (42)})
6... Nbd7 7. Be3 {Black has a cramped position. Black's piece can't move: c8}
Nb6 (7... c6 8. a4 $11) 8. Bb3 $14 Be6 9. O-O Bxb3 10. axb3 a6 {Prevents
intrusion on b5} 11. d4 Nbd7 12. d5 h6 13. Re1 Nh7 14. Ne2 f5 15. exf5 Rxf5 16.
Ng3 Rf7 17. c4 Ng5 18. Nxg5 (18. Nd2 $5 $16) 18... Bxg5 $11 19. Ne4 {The
knight feels good on e4} Bxe3 20. Rxe3 Nf6 21. Qd3 Qe7 22. Ng3 Raf8 23. Nf5 Qd7
24. Rg3 $4 {throwing away the advantage} (24. Ng3 $142 $11 {would save the game
}) 24... e4 $19 25. Nxh6+ Kh7 26. Nxf7 (26. Qc2 gxh6 27. Re1 $19) 26... exd3
27. Ng5+ Kg8 28. Ne6 Rf7 29. Rd1 (29. Rxd3 {hardly improves anything} c6 30.
Rad1 cxd5 31. cxd5 Qb5 $19) 29... Ne4 30. Re3 Nxf2 (30... Nc5 $142 $5 {keeps
an even firmer grip} 31. Nxc5 dxc5 32. Rdxd3 $19) 31. Rd2 Nxh3+ (31... c6 $142
{might be the shorter path} 32. Rxf2 Rxf2 33. Kxf2 cxd5 34. cxd5 Qc8 35. Rxd3
Qc2+ 36. Ke3 Qxg2 $19) 32. Rxh3 Rf6 (32... Qe7 33. Rdxd3 Qf6 34. Rd4 Qf2+ 35.
Kh2 Qxb2 36. Rg3 $19) 33. Re3 $2 (33. Rdxd3 $142 c6 34. Rd4 $15) 33... Qf7 $19
34. Rdxd3 (34. Re1 Qg6 35. Re3 Qf5 $19) 34... Rf1+ 35. Kh2 Qh5+ (35... Qf2 $142
{and Black can already relax} 36. Ng5 Qh4+ (36... Qxb2 $143 37. Re7 $19) 37.
Nh3 Re1 $19) 36. Rh3 $17 Qe5+ 37. Rhg3 Rf6 (37... Rf7 38. Rde3 Qf6 39. Ng5 $17)
38. Rde3 Qh5+ 39. Rh3 {White threatens to win material: Rh3xh5} Qd1 40. Ng5 (
40. Reg3 Rf7 $15) 40... Rf8 (40... Qf1 $142 41. Re8+ Rf8 $17) 41. Ne6 $4 {
with this move White loses his initiative} (41. Rh4 Qd2 42. Reh3 Qxg5 43. Rh8+
Kf7 44. Rf3+ Ke7 45. Rhxf8 Qh4+ 46. Kg1 Qd4+ 47. Kh1 Qh4+ 48. Kg1 Qd4+ 49. Kh1
Qh4+ 50. Kg1 $11) 41... Rf7 $4 {releasing the pressure on the opponent} (41...
Rf1 $142 {and Black is on the road to success} 42. Nxc7 Rh1+ 43. Kg3 Rxh3+ 44.
Kxh3 b5 $19) 42. Ng5 $11 {White has a mate threat} Rf8 43. Ne6 Rf7 $4 {Twofold
repetition. Black has let it slip away} (43... Rf1 $142 {a shame that Black
overlooked this excellent chance} 44. Rhf3 Rxf3 45. Rxf3 c6 46. Rf8+ Kh7 $19)
44. Ng5 $11 Rf8 1/2-1/2

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "4.5"]
[White "Ikogba, Kelvin"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "0"]
[BlackElo "1294"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "83"]
[EventDate "2021.03.27"]

{[%mdl 8256] B50: Sicilian: 2...d6, Miscellaneous} 1. e4 c5 2. Bc4 e6 3. Nf3 (
3. d3 d5 4. exd5 exd5 5. Bb5+ Nd7 6. Bxd7+ Bxd7 7. Bf4 Nf6 8. h3 Be7 9. Nf3 O-O
10. O-O d4 11. Nbd2 a5 12. a4 Nd5 13. Bh2 Re8 14. Nc4 Ra6 15. Qd2 Bf8 16. Rfe1
Rxe1+ 17. Qxe1 Nb4 {Kyaw,L (2250)-Fominyh,A (2438) Yangon 2014 0-1 (53)}) 3...
Nf6 $146 (3... a6 4. O-O b5 5. Be2 Bb7 6. d3 d6 7. a4 Nd7 8. Bf4 e5 9. Bg3 Be7
10. Nfd2 Ngf6 11. f4 exf4 12. Bxf4 O-O 13. Qe1 Ne5 14. axb5 axb5 15. Rxa8 Bxa8
16. Nc3 Bc6 17. Nd1 Ng6 18. Bg3 {Sahovic,D (2420)-Bukic,E (2500) Bor 1976 0-1 
(40)}) 4. d3 {Controls e4} d6 {Prevents intrusion on e5} 5. O-O Be7 6. Bd2 a6 {
Covers b5} 7. a3 O-O 8. c3 (8. Nc3 Nc6 $11) 8... b5 (8... d5 9. e5 dxc4 10.
exf6 Bxf6 11. dxc4 $17) 9. Ba2 Nc6 10. b4 (10. Qe2 h6 $15) 10... Re8 (10... c4
11. Be3 $17) 11. c4 (11. Bf4 Bb7 $11) 11... d5 (11... bxc4 $142 $5 12. Bxc4 d5
13. exd5 exd5 $17 (13... Nxd5 $143 14. bxc5 Bxc5 15. Nc3 $11)) 12. e5 $11 Nd7 {
Black threatens to win material: Nd7xe5} 13. cxd5 {White forks: c6+e6} Ncxe5 (
13... exd5 $5 {should be examined more closely} 14. Re1 c4 $11) 14. dxe6 $14 c4
$4 (14... fxe6 $142 {this is the best way to fight back} 15. Bc3 Nf7 $14) 15.
exd7 $18 Nxf3+ (15... Nxd7 {is no salvation} 16. dxc4 bxc4 17. Bxc4 $18) 16.
Qxf3 Bxd7 17. dxc4 Be6 (17... Bf6 {a fruitless try to alter the course of the
game} 18. Bc3 $18) 18. Rd1 (18. c5 {makes it even easier for White} Ra7 $18)
18... Rc8 (18... bxc4 {does not win a prize} 19. Bc3 Qc7 20. Nd2 $18) 19. Bg5
$1 {Discovered attack: d2, Rd1xd8} Qc7 (19... Bxg5 20. Rxd8 {Discovered attack}
) 20. Bxe7 Qxe7 21. c5 (21. Nd2 $142 {and White takes home the point} bxc4 22.
Qc3 $18) 21... Bxa2 22. Nc3 (22. h3 Be6 $18) 22... Bc4 (22... Bb3 23. Nd5 Bxd5
24. Qxd5 $16 (24. Rxd5 $4 Qe1+ 25. Rxe1 Rxe1#)) 23. Nd5 (23. h3 $142 $18) 23...
Be2 $4 {terrible, but what else could Black do to save the game?} (23... Bxd5
$142 24. Qxd5 Qf6 $16) 24. Nxe7+ $18 Rxe7 25. Qf4 (25. Qf5 $142 {seems even
better} Ree8 26. Rd7 Bc4 $18) 25... Bxd1 26. Rxd1 Rce8 (26... g6 {does not
help much} 27. h4 h5 28. Qf3 $18) 27. g3 Re4 28. Qc7 (28. Qxe4 Rc8 29. Qe7 h6
30. Rd8+ Rxd8 31. Qxd8+ Kh7 32. c6 h5 33. c7 f6 34. c8=Q Kg6 35. Qe8+ Kg5 36.
Qh3 h4 37. Qxh4+ Kf5 38. Qee4#) 28... R4e7 29. Qd6 (29. Qxe7 $1 g6 30. Qxe8+
Kg7 31. Rd7 Kf6 32. Qxf7+ Ke5 33. f3 h6 34. Rd5#) 29... Re6 $18 30. Qd3 (30.
Qd5 $142 {and White can already relax} a5 $18) 30... g6 (30... h5 {doesn't get
the cat off the tree} 31. Kg2 $18) 31. Qf3 Re4 32. c6 f5 33. c7 Rf8 34. Qb3+ (
34. Rd7 Rd4 35. Qb3+ Rc4 36. Qb2 Rc1+ 37. Qxc1 Rf7 38. Qa1 Rxd7 39. c8=Q+ Rd8
40. Qxd8+ Kf7 41. Qaf6#) 34... Kg7 35. Rd7+ Kh6 36. Qc3 Kg5 (36... a5 {is not
the saving move} 37. Qg7+ Kg5 38. Qxf8 Kg4 39. c8=Q Re1+ 40. Kg2 Rg1+ 41. Kxg1
Kh5 42. Qc1 a4 43. Rxh7+ Kg4 44. Qf4#) 37. h4+ Kg4 (37... Rxh4 {doesn't change
anything anymore} 38. gxh4+ Kh6 39. f3 Rf7 40. Rxf7 a5 41. Qg7+ Kh5 42. Qxh7#)
38. f3+ (38. Kg2 f4 39. f3+ Kf5 40. g4+ Ke6 41. Qc6+ Ke5 42. Qd6#) 38... Kh5 (
38... Kxg3 {doesn't improve anything} 39. fxe4+ Kxh4 40. Rd8 Re8 41. Rxe8 Kg5
42. c8=Q Kh5 43. Q8c7 fxe4 44. Qh3+ Kg5 45. Qe5#) 39. fxe4 (39. Rxh7#) 39...
fxe4 40. Rxh7+ (40. Qc5+ Rf5 41. Rxh7+ Kg4 42. c8=Q e3 43. Kg2 e2 44. Qd4#)
40... Kg4 41. c8=Q+ Rxc8 42. Qxc8+ (42. Qxc8+ Kf3 43. Qc3+ Kg4 44. Kg2 Kf5 45.
Qc5+ Ke6 46. Re7+ Kf6 47. Qg5#) 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "4.6"]
[White "Takeuchi, Hiroshi"]
[Black "Yoshii, Yukihiko"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "1354"]
[BlackElo "1797"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "79"]
[EventDate "2021.03.27"]

{[%mdl 8192] D05: Colle System with ...e6} 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3
Bd6 5. Nbd2 Nbd7 6. b3 (6. c4 b6 7. e4 dxe4 8. Nxe4 Bb4+ 9. Ke2 Bb7 10. Qc2 Be7
11. Rd1 Qc8 12. Bg5 h6 13. Bxf6 gxf6 14. Kf1 f5 15. Ned2 Bf6 16. Re1 O-O 17.
Rad1 Kh8 18. c5 bxc5 19. dxc5 Bd5 20. c6 Nb8 {Hillarp Persson,T (2549)-Berg,E 
(2589) Gothenburg 2006 1/2-1/2 (68)}) (6. e4 dxe4 7. Nxe4 Nxe4 8. Bxe4 Nf6 9.
Bd3 O-O 10. Bg5 b6 11. O-O Bb7 12. Re1 c5 13. Bxf6 Qxf6 14. Be4 Bxe4 15. Rxe4
Rad8 16. c3 cxd4 17. cxd4 Qf5 18. Qe2 Rc8 19. Ne5 Rc7 20. b3 Rfc8 {De Souza
Haro,P (2167)-Egoroff,J (2317) Sao Jose do Rio Preto 2012 0-1 (36)}) 6... b6
$146 (6... e5 7. dxe5 Nxe5 8. Bb2 Qe7 9. h3 O-O 10. O-O Bd7 11. Qe2 Ng6 12. c4
Rae8 13. Rfe1 c6 14. Rad1 Bb8 15. Bb1 Bc8 16. Qd3 Rd8 17. Qc3 Rfe8 18. cxd5
cxd5 19. Nf1 Bd6 20. Qd3 Ne5 21. Nxe5 {Janowski,D-Schlechter,C Ostend 1907 1/
2-1/2 (47)}) (6... e5 7. dxe5 Nxe5 8. Qe2 $11) 7. Bb2 (7. e4 dxe4 8. Nxe4 Be7
$14) 7... Bb7 $11 8. O-O O-O 9. Ne5 Ne4 10. f3 Nxd2 11. Qxd2 f6 12. Nxd7 Qxd7
13. f4 c5 14. Qe2 Bc6 15. Rae1 b5 (15... Rae8 16. Rc1 $11) 16. dxc5 $14 Bxc5
17. Kh1 (17. Rf3 b4 $14) 17... Qd6 (17... Rae8 18. Rf3 $11) 18. Qh5 (18. Bxb5
$142 Bxb5 19. Qxb5 $14) 18... h6 $2 (18... f5 $142 $11 {is the best chance})
19. Qg6 $18 Rf7 20. Qh7+ Kf8 21. Bg6 Rc7 $4 {Black falls apart} (21... Ke7 $18)
22. Qh8+ (22. Be5 $142 $1 {and White has triumphed} Ke7 23. Bxd6+ Kxd6 24. e4
$18) 22... Ke7 23. Qxg7+ Kd8 24. Qxf6+ Kc8 25. Qh8+ Kb7 26. Qxh6 Rcc8 (26...
Qe7 27. Bd3 $18) 27. Be5 Qe7 28. Qh7 (28. a4 {keeps an even firmer grip} Bb4
29. Rb1 a6 $18) 28... a6 (28... Rf8 {doesn't get the bull off the ice} 29. Qh5
$18) 29. Qxe7+ Bxe7 30. f5 exf5 31. Rxf5 Rg8 (31... Be8 {does not solve
anything} 32. Bxe8 Rxe8 33. g4 $18) 32. Rf7 Rae8 33. Bd3 (33. Bh7 {makes it
even easier for White} Rgf8 34. Rg7 Kb6 $18) 33... Ka8 (33... Kb6 $18 {doesn't
change the outcome of the game}) 34. Rh7 (34. Bd4 $142 $18 {nails it down})
34... Bb4 $16 35. c3 {White threatens to win material: c3xb4} Rxe5 $2 (35... d4
$142 36. Rg7 dxc3 37. Rxg8 Rxg8 $16) 36. cxb4 $18 d4 (36... Rge8 37. h4 Rxe3
38. Rc1 $18) 37. e4 Rg4 (37... Rge8 38. Rh4 $18) 38. Rc1 (38. Rf7 $142 $18 {
might be the shorter path}) 38... Bb7 (38... Re6 $18) 39. Rcc7 Bxe4 (39... Rg6
{otherwise it's curtains at once} 40. Rxb7 Ree6 $18) 40. Rh8+ (40. Rh8+ Rg8 41.
Rxg8+ Re8 42. Rxe8#) (40. Rc8#) 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "4.7"]
[White "Al Jbarat, Thamer Mahmmoud Muhammad "]
[Black "Wada, Katsuhiko"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "0"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "97"]
[EventDate "2021.03.27"]

{[%mdl 8256] D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6
3 Bf4} 1. d4 d5 2. e3 Nf6 3. Nf3 Bg4 4. Be2 Nc6 $146 (4... Bxf3 5. Bxf3 e6 (
5... c6 6. b3 Nbd7 7. Bb2 Qc7 8. Nd2 e6 9. c4 dxc4 10. Nxc4 Bb4+ 11. Nd2 Rd8
12. O-O h5 13. Be2 Ng4 14. Nf3 Bd6 15. h3 Ndf6 16. Qc2 Bh2+ 17. Kh1 Nd5 18. Qe4
Bd6 19. Rac1 Qe7 20. Kg1 {Burn,A-Blackburne,J London 1887 1-0 (63)}) 6. O-O Bd6
7. c4 c6 8. Nc3 Nbd7 9. b3 Rc8 10. Bd2 Bb8 11. Re1 h5 12. cxd5 cxd5 13. e4 dxe4
14. Nxe4 Nxe4 15. Bxe4 Nf6 16. Bxb7 Bxh2+ 17. Kf1 Rb8 18. Qf3 Bd6 19. Bg5 {
Zukertort,J-Mason,J London 1883 1-0 (58)}) (4... Nbd7 5. h3 (5. Nbd2 h6 6. h3
Bh5 7. Ne5 Bxe2 8. Qxe2 e6 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 Nxe5 12. Qxe5 Qd5
13. Qxd5 exd5 14. Bf4 Bb4+ 15. c3 Ba5 16. Kd2 Kd7 17. a4 a6 18. b4 Bb6 19. a5
Ba7 {Quast,M (2283)-Boehnisch,M (2254) Germany 2013 1/2-1/2}) 5... Bh5 6. Nbd2
e6 7. c4 c6 8. b3 Bd6 9. Bb2 O-O 10. O-O Ne4 11. cxd5 Nxd2 12. Nxd2 Bxe2 13.
Qxe2 exd5 14. e4 dxe4 15. Nxe4 Re8 16. Rfe1 Bb4 17. Red1 Qe7 18. Qg4 h5 {
0-1 (18) Bogdanovich,G (2400)-Flear,G (2485) Issy les Moulineaux 1997}) (4...
c5 5. dxc5 e6 6. c4 Bxc5 7. cxd5 Qxd5 8. Qa4+ Nc6 9. Nc3 Qd6 10. O-O O-O 11. a3
a5 12. Rd1 Qe7 13. h3 Bh5 14. e4 Bxf3 15. Bxf3 Nd7 16. Nb5 Nde5 17. Be2 Qh4 18.
Rf1 Rad8 19. Qc2 {Ritter,M (2400)-La Flair,R (2390) Long Island 1995 1/2-1/2 
(42)}) 5. h3 {White threatens to win material: h3xg4} Bh5 6. O-O e6 7. b3 Ne4
8. c4 Ne7 (8... Bb4 9. Bd2 $11) 9. Nbd2 (9. Nfd2 $5 Bxe2 10. Qxe2 $14) 9... Nc3
$11 {Black threatens to win material: Nc3xd1} 10. Qe1 Bg6 (10... Nc6 $5 $11 {
must be considered}) 11. Bb2 $16 Nxe2+ 12. Qxe2 c6 13. cxd5 (13. Ne5 f6 14.
Nxg6 Nxg6 $14) 13... exd5 14. Ne5 f6 15. Nxg6 Nxg6 16. e4 {White threatens to
win material: e4xd5} Be7 (16... Qe7 $14) 17. exd5 (17. f4 $5 O-O 18. f5 $16)
17... cxd5 {Black king safety dropped. .} (17... Qxd5 18. f4 f5 19. Nc4 $11)
18. Rfe1 (18. f4 f5 $14) 18... O-O {Black castles and improves king safety} 19.
Qb5 {White threatens to win material: Qb5xb7} Rb8 20. Nf1 a6 21. Qa4 Rc8 22.
Ne3 (22. Rac1 Qd6 $11) 22... Rc6 (22... f5 $5 $17) 23. b4 $11 Qd6 24. a3 Bd8 (
24... Qe6 25. Rac1 Rxc1 26. Bxc1 $11) 25. g3 {Secures f4+h4} Qd7 {Black
threatens to win material: Qd7xh3} 26. Kg2 $4 {gives the opponent counterplay}
(26. Rac1 $142 {and White is still in the game} Ne7 27. Rxc6 Nxc6 28. Qb3 $11)
26... f5 $17 27. Qb3 Rd6 (27... f4 $142 $5 28. Nxd5 Qf7 $17) 28. f4 $11 Ne7 29.
a4 {[%cal Yb4b5] White prepares b5} h6 (29... g5 30. fxg5 Rg6 31. Bc1 $11) 30.
b5 $14 {This push gains space} a5 $2 (30... Ba5 $142 {would keep Black in the
game} 31. Re2 Re6 $14) 31. Ba3 $18 Re6 32. Bxe7 Qxe7 33. Qxd5 (33. Nxd5 $142
Re2+ 34. Kf1 Rxe1+ 35. Rxe1 $18) 33... Qd6 $4 {solves nothing} (33... Qf7 $142
34. Qc4 Rfe8 $16) 34. Qc4 (34. Qa2 {and White can already relax} Qd7 35. Nxf5
Rff6 36. Nxh6+ gxh6 $18 (36... Rxh6 $4 37. f5 $18)) 34... Kh8 (34... Rff6 {
is the last straw} 35. Nxf5 $1 {Deflection: e6} Qc7 36. Qxc7 Bxc7 37. Rxe6 Rxe6
$18) 35. Nxf5 $1 {Decoy: f5} Rxe1 (35... Rxf5 36. Re5 {Decoy Double attack} (
36. Rxe6 {Discovered attack})) 36. Nxd6 Rxa1 37. Nf7+ (37. Nxb7 {seems even
better} Rd1 38. Qc5 Re8 $18) 37... Kh7 38. Ne5 Bb6 (38... Bf6 $18 {hoping
against hope}) 39. Nd7 Re8 (39... Rd8 {does not improve anything} 40. Nxb6 Re1
41. d5 $18) 40. Nxb6 (40. Nf6+ gxf6 41. Qf7+ Kh8 42. Qxe8+ Kg7 43. Qd7+ Kf8 44.
Qc8+ Bd8 45. Qxd8+ Kf7 46. Qd7+ Kf8 47. Qc8+ Ke7 48. Qxb7+ Kf8 $18) 40... Rae1
(40... Kh8 {cannot change destiny} 41. d5 Rd1 42. Qc2 $18) 41. h4 R8e2+ (41...
R1e4 {cannot undo what has already been done} 42. Nd7 R4e7 43. Ne5 $18) 42. Kf3
Re3+ 43. Kg4 h5+ 44. Kf5 Rxg3 (44... Re7 $18 {is not much help}) 45. Nd5 (45.
Nd7 Rg4 46. Nf8+ Kh8 47. Qc8 Rxf4+ 48. Kxf4 g5+ 49. Kf5 Re8 50. Qxe8 Kg7 51.
Ne6+ Kh7 52. Qg6+ Kh8 53. Qg7#) 45... Rg6 46. Qd3 Rge6 (46... Ree6 $18 {
is still a small chance}) 47. Kg5+ g6 (47... Kg8 {the last chance for
counterplay} 48. Qg3 R1e4 $18) 48. Nf6+ Kg7 (48... Kh8 {doesn't do any good}
49. Qc2 b6 50. Kh6 R1e4 51. Qc8+ Re8 52. Nxe8 Kg8 53. Nd6+ Re8 54. Qxe8#) 49.
Qxg6+ (49. Qxg6+ Kf8 50. Qg8+ Ke7 51. Qe8+ Kd6 52. Qd7#) 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "4.8"]
[White "Sato, Yasuji"]
[Black "Hayashi, Ryota"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "1498"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "37"]
[EventDate "2021.03.27"]

{[%mdl 8256] C56: Two Knights: 4 d4 exd4 5 0-0 Nxe4} 1. e4 e5 2. Nf3 Nc6 3. Bc4
Nf6 4. d4 exd4 5. e5 d5 6. O-O (6. Bb3 Ne4 7. Nxd4 Nc5 8. O-O Nxd4 9. Qxd4 Nxb3
10. axb3 c5 11. Qd3 Be7 12. Nc3 d4 13. Ne4 O-O 14. Ng3 Re8 15. f4 Bf8 16. Bd2
f6 17. Rae1 fxe5 18. fxe5 Qb6 19. Rf4 Qg6 20. Ree4 Be6 {Nilsson,L (2260)
-Kalesis,N (2310) Chania 1993 1-0 (61)}) 6... dxc4 7. exf6 Qxf6 $146 (7... Be6
8. Re1 gxf6 9. Nbd2 Be7 10. c3 dxc3 11. bxc3 Qd5 12. Qa4 O-O-O 13. Ba3 Bxa3 14.
Qxa3 Rhg8 15. Re3 Bh3 16. g3 Rge8 17. Rae1 Rxe3 18. Rxe3 a6 19. Qc1 Ne5 20. Qe1
Qc6 21. Nh4 Bg4 22. f3 {Bura,R (2199)-Popovic,A (2258) Belgrade 2010 0-1 (39)})
8. Bg5 (8. Nbd2 Be6 9. Qe2 O-O-O 10. Nxc4 Bg4 $19) 8... Qg6 (8... Qf5 $5 9. Bh4
Bc5 10. Na3 $19) 9. Re1+ Be6 10. c3 Be7 $4 {letting the wind out of his own
sails} (10... dxc3 $142 11. Nxc3 Bb4 $19) 11. cxd4 $4 (11. Bxe7 $142 {this is
the best bet to save the position} Kxe7 12. Nxd4 $15) 11... Bxg5 $19 12. d5 Rd8
(12... O-O-O $142 $5 {makes it even easier for Black} 13. Nc3 Bf6 14. Rc1 $19)
13. Nc3 O-O 14. Qa4 Bxd5 15. Nxd5 Rxd5 16. Qxc4 Rfd8 (16... Qf5 $142 $19 {
secures the point}) 17. Qxd5 $1 $16 {Deflection: e8} h6 (17... Rxd5 18. Re8# {
Mate attack Deflection}) (17... Z0 $140 18. Qxd8+ {Mate threat}) 18. Nxg5 $1 {
Decoy: g5} Rxd5 $4 {terrible, but the game is lost in any case} (18... Qxg5 19.
Qxg5 hxg5 20. Rad1 {Combination}) (18... hxg5 19. Qb5 {Decoy}) (18... Z0 $140
19. Qxd8+ {Mate threat}) 19. Re8# 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "5.1"]
[White "Kawamura, Takuto"]
[Black "Drakakis, Athanasios"]
[Result "0-1"]
[ECO "D51"]
[WhiteElo "0"]
[BlackElo "1904"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "48"]
[EventDate "2021.03.27"]

{[%mdl 8192] D51: Queen's Gambit Declined: 4 Bg5 Nbd7 sidelines} 1. d4 d5 2. c4
e6 3. Nc3 Nf6 4. Bg5 c6 5. e4 dxe4 6. Nxe4 Nbd7 7. Nf3 Be7 {Black has a
cramped position. Black's piece can't move: c8} 8. Qc2 $4 $146 {there were
better ways to keep up the pressure} (8. Nc3 O-O 9. Be2 (9. Qc2 b6 10. O-O-O
Bb7 11. h4 Qc7 12. Bd3 Rfe8 13. Kb1 Nf8 14. Bxf6 Bxf6 15. Ne4 c5 16. Nxf6+ gxf6
17. Qd2 Ng6 18. h5 Nf4 19. Rh4 Bxf3 20. gxf3 e5 21. d5 Qd6 22. h6 Kh8 23. Qc2
Nxd3 {Alekhine,A-Bogoljubow,E GER/NLD 1929 1-0 (77)}) 9... c5 10. O-O b6 11.
Qc2 h6 12. Bh4 Bb7 13. Rad1 Nh5 14. Bg3 Nxg3 15. hxg3 cxd4 16. Nxd4 Qc8 17.
Rfe1 Rd8 18. Bf1 Bc5 19. Nb3 Bf8 20. Nb5 Nc5 21. Rxd8 Qxd8 22. Rd1 Qf6 {
Hausner,I (2440)-Gerstner,W (2340) Prague 1990 1-0 (41)}) (8. Nxf6+ Nxf6 9. Bd3
Qb6 $14) 8... Qa5+ (8... Nxe4 $142 9. Bxe7 Qxe7 10. Qxe4 Qb4+ 11. Nd2 Qxb2 $15)
9. Bd2 $14 {White threatens to win material: Bd2xa5} Qc7 10. c5 {White wins
space} Nd5 {A sound move} 11. b4 N7f6 12. Ne5 (12. Bc4 O-O $14) 12... Nxe4 13.
Qxe4 Bf6 (13... f5 14. Qc2 $11) 14. Nc4 (14. Bd3 $5 $14 {must definitely be
considered}) 14... O-O $11 15. Bd3 g6 16. h4 {Black has a cramped position} (
16. Ne5 $5 $11 {is worthy of consideration}) 16... e5 $15 {Black threatens to
win material: e5xd4} 17. Nd6 (17. dxe5 Bf5 18. Qd4 Bxd3 19. Qxd3 Bxe5 $17)
17... exd4 $17 18. Qf3 {[%cal Yh4h5] White plans h5} Be5 19. Nxc8 Raxc8 20. h5
Bf4 (20... Rce8 21. Bc4 $17) 21. Bxf4 Qxf4 22. hxg6 (22. Qxf4 $5 Nxf4 23. O-O-O
$17) 22... Rce8+ 23. Kf1 fxg6 24. Qh3 $4 {but even a better move would not
have saved the game} (24. Qxf4 $142 Rxf4 25. a3 $17) 24... Qxf2# 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "5.2"]
[White "Nakamura, Mitsuru"]
[Black "Ikogba, Kelvin"]
[Result "1/2-1/2"]
[ECO "B56"]
[WhiteElo "1354"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "125"]
[EventDate "2021.03.27"]

{[%mdl 8256] B56: Classical Sicilian: Unusual Lines} 1. e4 c5 2. Nf3 d6 3. d4
cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Be7 7. Bg5 (7. Be2 Be6 8. Be3 Nc6 9. Qd2 O-O
10. Rd1 Qb8 11. O-O Rd8 12. Bf3 d5 13. exd5 Nb4 14. Bg5 Bxd5 15. Bxf6 Bc4 16.
Qxd8+ Bxd8 17. Rxd8+ Qxd8 18. Bxd8 Bxf1 19. Be7 {1-0 (19) Megaranto,S (2536)
-Mateo,R (2488) Dresden 2008}) 7... O-O 8. Qf3 $146 (8. Bxf6 Bxf6 9. Bc4 Be6
10. Nd5 Nc6 11. c3 Rc8 12. Qd3 Bg5 13. O-O Kh8 14. Rad1 Ne7 15. Nd2 Ng6 16. Bb3
Qd7 17. g3 Bh3 18. Rfe1 f5 19. exf5 Bxd2 20. Rxd2 Rxf5 21. Ne3 Rf6 22. Nd5 Rf5
{Van Foreest,J (2466)-Becker,M (2321) Germany 2014 1-0}) (8. Qd2 a5 9. a4 (9.
Bb5 Nbd7 10. Bxd7 Qxd7 11. a4 Qc6 12. Bxf6 Bxf6 13. Rd1 Bg4 14. f3 Bh4+ 15. Ke2
Be6 16. Qxd6 Qc4+ 17. Qd3 Qb4 18. Nd5 Qxa4 19. Ra1 Qc6 20. g3 Bd8 21. Nxa5 Qd7
22. Nc4 Rxa1 23. Rxa1 Bxd5 {Almasi,Z (2340)-Kovacevic,V (2320) Budapest 1991
1-0 (42)}) 9... Be6 10. Bb5 Nbd7 11. O-O Qc7 12. Bxd7 Qxd7 13. Bxf6 Bxf6 14.
Rfd1 Rfd8 15. Nd5 Bxd5 16. Qxd5 Qc7 17. c4 Bg5 18. Rd3 Rdc8 19. Rc3 b6 20. Ra2
g6 21. Na1 Kg7 22. Nc2 f5 {Timofeev,S (2257)-Zatonskih,V (2305) Mariupol 2003
0-1 (51)}) 8... a6 {Consolidates b5} 9. O-O-O (9. Bxf6 Bxf6 10. Nd5 Bg5 $11)
9... b5 $4 {Black has a cramped position. Black has let it slip away} (9... Bg4
10. Qd3 Bxd1 11. Qxd1 $17) 10. a3 $4 {gives the opponent new chances} (10. Bxf6
Bxf6 11. Nd5 Be7 $11) 10... Bb7 $4 {Loses material. Black lets it slip away} (
10... Bg4 11. Qd3 Bxd1 12. Qxd1 $17) 11. Qe3 $4 {forfeits the advantage} (11.
h4 Nbd7 $14) 11... Nc6 $4 {Black is ruining his position} (11... Ng4 $142 $5
12. Bxe7 Nxe3 13. Bxd8 Nxd1 14. Kxd1 Rxd8 $17) 12. f4 (12. Qg3 Nh5 13. Bxe7
Nxe7 $11) 12... exf4 (12... h6 13. Bxf6 Bxf6 14. g3 $15) 13. Qxf4 (13. Bxf4 $5
{should be considered} Ng4 14. Qg3 $14) 13... Ne5 $15 {A valuable piece} 14.
Rg1 (14. h4 Rc8 $15) 14... Qc7 (14... Rc8 $5 $17) 15. Bxf6 Bxf6 ({Instead of} 
15... gxf6 16. Kb1 $16) 16. Nd5 (16. Kb1 Rac8 $17) 16... Bxd5 $17 17. Rxd5 h6
18. Kb1 Rac8 (18... Rab8 19. Nd4 Nc4 20. Bxc4 bxc4 $17 (20... Qxc4 $6 21. c3
$11 (21. Qxd6 $4 {A poison bait which should not be taken} Rfd8 22. Qf4 Bxd4
$19))) 19. Qd2 $2 (19. c3 Rfd8 $15) 19... Rfd8 (19... Ng4 $5 20. Be2 (20. Rxd6
$2 {doesn't lead to the expected results} Bg5 21. Qd1 Nf2 $19) 20... Ne3 21.
Rxd6 $17) 20. Be2 (20. c3 Ng6 $15) 20... Nc4 $17 21. Bxc4 Qxc4 (21... bxc4 22.
Nd4 $17) 22. Rc1 $2 (22. Nd4 $142 $11 {and White can hope to live}) 22... Bg5
$17 ({Inferior is} 22... Qxe4 23. Re1 Qc4 24. Qd1 $17) 23. Rxg5 hxg5 24. Qxg5 (
24. Nd4 g6 $17) 24... Qxe4 $19 25. Nd2 Qe6 26. h4 d5 (26... Re8 27. Nf3 $19)
27. h5 (27. Nf3 Re8 $19) 27... d4 28. Qg3 d3 29. c3 (29. cxd3 Rxc1+ 30. Kxc1
Qc6+ 31. Kd1 Rc8 $19) 29... a5 (29... Qh6 {keeps an even firmer grip} 30. Qf2
$19) 30. Rh1 (30. Qf4 Rc5 31. g4 Re5 $19) 30... Qe2 (30... Qh6 31. Rd1 b4 32.
axb4 axb4 $19) 31. h6 g6 32. h7+ (32. Qg5 Rd6 $19) 32... Kh8 33. Re1 $4 {
simply worsens the situation} (33. Qf4 Qe7 34. Rd1 $19) 33... Qxd2 34. Qe5+
Kxh7 35. Rh1+ (35. Rf1 {is no salvation} Qh6 36. Rxf7+ Kg8 $19) 35... Qh6 $1 {
a painful check} 36. Rxh6+ Kxh6 37. Kc1 (37. Qf4+ {a fruitless try to alter
the course of the game} Kg7 38. Qd2 Rd7 $19) 37... d2+ 38. Kd1 Re8 (38... b4
$142 {and Black can celebrate victory} 39. Qe4 $19) 39. Qh2+ $4 {leads to
further unpleasantness} (39. Qf4+ $142 Kg7 40. Kxd2 Rcd8+ 41. Kc2 Re2+ 42. Kc1
$17) 39... Kg7 $19 40. Kxd2 Rcd8+ 41. Kc2 Re2+ 42. Kc1 Rdd2 43. Qf4 Rxb2 (43...
Rxg2 $142 {ends the debate} 44. Qe5+ Kh7 $19) 44. Qd4+ Kh6 $4 {not a good
decision, because now the opponent is right back in the game} (44... f6 $142 {
a pity that Black didn't try this} 45. Qd7+ Kh6 46. Qh3+ Kg5 47. Qg3+ Kf5 48.
Qf3+ Ke5 $19) 45. Qh4+ $11 Kg7 46. Qd4+ Kf8 (46... f6 $142 47. Qd7+ Kh6 48.
Qh3+ Kg5 49. Qg3+ Kf5 50. Qh3+ Ke5 51. Qg3+ Kd5 $19) 47. Qd8+ $11 {White forks:
a5} Kg7 48. Qd4+ f6 49. g4 $4 {a blunder in a bad position} (49. Qd7+ Kh6 50.
Qh3+ Kg5 51. Qg3+ Kf5 52. Qf3+ Ke5 53. Qg3+ Kd5 54. Qd3+ Ke6 55. Qxg6 Rec2+ 56.
Kd1 Rxg2 57. Qe8+ Kf5 58. Qd7+ Kf4 59. Qc7+ Ke4 60. Qc6+ Kd3 61. Qd7+ Kc4 62.
Qe6+ Kxc3 63. Qh3+ Kd4 64. Qd7+ Ke5 65. Qc7+ Ke6 66. Qc8+ Kf7 67. Qd7+ Kg6 68.
Qe8+ Kg5 69. Qg8+ Kf4 70. Qb8+ Kg4 71. Qg8+ Kf3 72. Qd5+ Kf4 73. Qd4+ Kg5 74.
Qe3+ Kf5 75. Qd3+ Ke6 76. Qe4+ Kf7 77. Kc1 $19) 49... Rec2+ $19 50. Kd1 Rd2+ $1
{finishing the game} 51. Qxd2 Rxd2+ 52. Kxd2 Kf7 53. Ke3 Ke6 54. Kd4 Kd6 55. c4
b4 56. c5+ Kc6 57. axb4 axb4 (57... a4 {and Black can already relax} 58. Kc4 f5
59. b5+ Kc7 60. gxf5 gxf5 61. c6 $19) 58. Kc4 f5 (58... b3 59. Kxb3 Kxc5 $19)
59. gxf5 $11 gxf5 60. Kxb4 f4 61. Kc3 Kd5 {Loses material} 62. Kd3 Kxc5 63. Ke4
1/2-1/2

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "5.3"]
[White "Shimomura, Kensei"]
[Black "Nishimori, Toshiyuki"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "0"]
[BlackElo "1712"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "96"]
[EventDate "2021.03.27"]

{[%mdl 8256] A04: Unusual lines after 1 Nf3 and King's Indian Attack} 1. Nf3
Nc6 2. g3 b6 $146 (2... e5 3. Nc3 (3. d3 Bc5 (3... d6 4. Bg2 f5 5. e4 Nf6 6.
Nh4 fxe4 7. dxe4 g6 8. O-O Bg7 9. c3 Be6 10. Nd2 O-O 11. Nhf3 h6 12. Qe2 Qd7
13. Nc4 Qf7 14. Nfd2 Rae8 15. Ne3 Nh5 16. b3 Qd7 17. a4 Rf7 18. Ba3 {
Matthiesen,M (2337)-Sobjerg,E (2260) Aarhus 2000 1/2-1/2 (41)}) (3... f5 4. a3
(4. Bg2 Nf6 5. O-O d6 6. c4 Be7 7. Nc3 O-O 8. Rb1 Qe8 9. b4 a6 10. a4 Qh5 11.
Nd5 Nxd5 12. cxd5 Nb8 13. Qc2 Bd8 14. Bd2 Nd7 15. b5 g5 16. Qc1 f4 17. h3 Nf6
18. g4 Nxg4 {Schulz,K (2375)-Speckner,R (2225) Germany 1992 1/2-1/2}) 4... a5
5. e4 Nf6 6. Nc3 d6 7. Bg2 Be7 8. O-O O-O 9. Qe2 f4 10. d4 fxg3 11. hxg3 Bg4
12. Qc4+ Kh8 13. dxe5 Bxf3 14. exf6 Rxf6 15. Nd5 Rf8 16. Bf4 Bxg2 17. Kxg2 Bf6
18. c3 {Jacobsen,B (2285)-Hoiberg,N (2295) Denmark 1991 1-0}) 4. Bg2 d6 5. O-O
f5 6. c4 Nf6 7. Bg5 h6 8. Bxf6 Qxf6 9. Nc3 O-O 10. Nd5 Qf7 11. a3 a6 12. b4 Ba7
13. a4 Nd8 14. b5 c6 15. Nc3 a5 16. Rb1 Be6 17. Nd2 Bd4 {Marin,I (2261)-Mitkov,
N (2532) Sitges 2000 0-1 (43)}) 3... g6 4. Bg2 Bg7 5. O-O d6 6. e4 Nge7 7. d3
O-O 8. Bg5 h6 9. Be3 Kh7 10. Ne1 f5 11. f4 {1/2-1/2 (11) Bokan,D (2255)-Sarapu,
O (2325) Tallinn 1989}) (2... e5 3. d4 exd4 4. Nxd4 $11) 3. Bg2 $14 Bb7 4. O-O
Nf6 5. d3 {Controls e4} g6 6. Nbd2 (6. e4 $5 $14 {is an interesting idea}) 6...
Bg7 $11 7. a3 {Prevents intrusion on b4} O-O 8. b3 $2 (8. e4 $142 $5 $11 {
is an interesting alternative}) 8... Nd5 $17 9. Nh4 $4 {the position is going
down the drain} (9. d4 $142 Nxd4 10. Nxd4 Bxd4 11. Bxd5 Bxd5 12. Ra2 $17) 9...
Nc3 $19 (9... Bxa1 $6 10. Bxd5 e6 11. Bxc6 Bxc6 12. Nhf3 $19) 10. Qe1 Nxe2+ $1
{Decoy: e2} 11. Qxe2 Bxa1 12. Qe3 Bd4 13. Qe4 Rb8 14. Ndf3 Bg7 (14... d5 {
makes it even easier for Black} 15. Qg4 Bg7 16. Qa4 $19) 15. Re1 Re8 16. Be3 (
16. Qa4 d5 $19) 16... Ne5 (16... Nd4 $142 $1 {makes it even easier for Black}
17. Qf4 Nxc2 18. Re2 $19) 17. Qf4 (17. Qa4 Bc6 18. Qf4 Nxf3+ 19. Nxf3 e5 $19)
17... Nxf3+ 18. Bxf3 Bxf3 19. Nxf3 d6 (19... d5 20. Ng5 Bf6 21. Qh4 $19) 20.
Ng5 Bf6 21. Ne4 (21. Qh4 Bxg5 22. Bxg5 f6 $19) 21... d5 22. Nxf6+ exf6 23. Kf1
g5 24. Qf5 (24. Qa4 c5 25. c3 Qc7 $19) 24... Re5 (24... d4 $5 {and Black can
already relax} 25. Bd2 Qd6 26. Qf3 $19) 25. Qg4 Qe7 26. d4 Re4 27. Qf5 Qe6 28.
Qxe6 Rxe6 (28... fxe6 $6 29. f3 Rxe3 30. Rxe3 $17) 29. h4 (29. Ke2 Rbe8 $19)
29... Rbe8 30. hxg5 fxg5 31. g4 (31. Rb1 {cannot undo what has already been
done} f6 $19) 31... h6 (31... Re4 {keeps an even firmer grip} 32. Bd2 Rxe1+ 33.
Bxe1 $19) 32. c4 (32. Kg2 {doesn't do any good} Rc6 33. Re2 Rc3 $19) 32... c6 (
32... dxc4 {might be the shorter path} 33. bxc4 Re4 34. c5 $19) 33. a4 (33.
cxd5 {hardly improves anything} cxd5 34. Rc1 Kg7 $19) 33... Kg7 34. b4 (34. Ke2
{doesn't change anything anymore} Kg6 $19) 34... Kg6 (34... dxc4 {seems even
better} 35. Rc1 b5 36. axb5 cxb5 37. Rd1 $19) 35. b5 (35. Rc1 {cannot change
what is in store for White} f5 36. gxf5+ Kxf5 $19) 35... cxb5 (35... dxc4 $5 {
might be the shorter path} 36. bxc6 Rxc6 37. Ke2 $19) 36. cxd5 Rd6 37. axb5
Rxd5 38. Ra1 Rxb5 39. Rxa7 Re4 40. d5 (40. Rd7 {does not help much} Rxg4 41.
Rd6+ f6 $19) 40... Rxd5 41. Bxb6 Rxg4 42. Ra6 (42. Be3 $19 {is one last hope})
42... Rd6 43. Ke2 (43. f3 {does not solve anything} Rb4 $19) 43... Re6+ 44. Kf3
Rb4 45. Bc5 (45. Kg3 {is not the saving move} Rexb6 46. Ra8 h5 $19) 45... Rb3+
46. Kg4 Rxa6 (46... h5#) 47. f4 Ra4 (47... h5#) 48. Bd4 (48. Be3 {does not win
a prize} Rxf4+ $1 {Deflection: e3} 49. Kg3 Rxe3+ 50. Kg2 Re2+ 51. Kh3 Rd4 52.
Kg3 Rd3+ 53. Kg4 h5#) 48... h5# (48... Rxd4 $4 {the bishop is taboo} 49. Z0
Rxf4#) 0-1

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "5.4"]
[White "Al Jbarat, Thamer Mahmmoud Muhammad "]
[Black "Takeuchi, Hiroshi"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "0"]
[BlackElo "1354"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "111"]
[EventDate "2021.03.27"]

{[%mdl 8192] A05: R騁i Opening: 1 Nf3 Nf6} 1. g3 Nf6 2. Nf3 g6 3. b3 Bg7 4. Bb2
d5 5. d4 (5. Bg2 c6 6. O-O a5 7. a4 O-O 8. d3 Na6 9. Nbd2 Re8 10. Re1 Bg4 11.
h3 Bxf3 12. Nxf3 Nd7 13. Bxg7 Kxg7 14. e4 dxe4 15. Rxe4 e5 16. Qe1 Nb4 17. Qc3
f5 18. Re2 Qf6 19. Rae1 e4 {Djurhuus,R (2505)-Khenkin,I (2575) Stockholm 1996
1-0 (48)}) 5... O-O 6. e3 $146 (6. Bg2 c5 7. c3 Nc6 8. O-O Qb6 9. e3 Bf5 10.
Nbd2 Rfd8 11. Qe2 a5 12. Ba3 cxd4 13. cxd4 Nb4 14. Rfc1 Nc2 15. Bxe7 Re8 16.
Bxf6 Bxf6 17. g4 Nxa1 18. gxf5 Bxd4 19. Nxd4 {1/2-1/2 (19) Serebro,A (2297)
-Tyomkin,D (2501) Israel 2002}) (6. Bg2 Nc6 $15) 6... Nc6 7. Be2 Bh3 {Black
inhibits 0-0} 8. Ng5 Bf5 9. g4 {White threatens to win material: g4xf5} Bd7 10.
h3 e6 11. h4 (11. Nf3 $5 $15) 11... h6 $17 12. Nh3 Ne4 13. h5 g5 (13... e5 $5
14. dxe5 Nxe5 15. Nc3 Nxc3 16. Bxc3 Nf3+ 17. Bxf3 Bxc3+ 18. Kf1 Bxa1 19. Qxa1
$19) 14. Nc3 (14. Nd2 Nd6 $15) 14... Nxc3 $17 15. Bxc3 Ne7 (15... e5 16. dxe5
Nxe5 17. Qd2 (17. Qxd5 $2 {fails because of} Nf3+ (17... Bxg4 $6 18. Qxd8 (18.
Qxb7 $4 {the pawn is safe and cannot be captured without dire consequences}
Nf3+ 19. Bxf3 Bxc3+ 20. Kf1 Rb8 $19) 18... Raxd8 19. Bxg4 Nxg4 20. Bxg7 Kxg7
21. Rd1 $17) 18. Bxf3 Bxc3+ 19. Ke2 Bxa1 $19) 17... Nxg4 18. Bxg7 Kxg7 19. Rg1
$17) 16. Bb4 (16. Qd2 $5 $14 {must definitely be considered}) 16... a5 {
Black threatens to win material: a5xb4} 17. Ba3 Re8 18. f4 f6 (18... gxf4 19.
Nxf4 e5 20. dxe5 Bxe5 21. O-O $17) 19. Qd3 a4 20. Bb2 (20. O-O Qc8 $11) 20...
axb3 21. cxb3 Rf8 22. Bd1 Qe8 (22... gxf4 $142 $5 {and Black can hope to
survive} 23. Bc2 f5 24. Nxf4 c5 $11) 23. Bc2 $16 f5 24. fxg5 hxg5 25. Nxg5 Bh6
26. Nf3 Bb5 27. Qd2 fxg4 28. Ne5 Rf6 $4 {cause more grief} (28... g3 $142 29.
Qg2 Nf5 $16) 29. Qg2 (29. a4 $142 $5 {keeps an even firmer grip} Ba6 30. Nxg4
Qf7 $18) 29... Qf8 (29... Bxe3 $4 {the pawn contains a lethal dose of poison}
30. Nxg4 Qf8 31. Nxf6+ Kh8 32. Rh3 $18) 30. Rg1 $4 {weakening the position} (
30. a4 {and White can already relax} Ba6 31. Nxg4 Kh8 $18) 30... Qg7 $4 {
causes even greater problems} (30... Nf5 $142 31. Nxg4 Kh8 32. Bxf5 Rxf5 $16)
31. Nxg4 $18 Bg5 (31... Kh8 32. Qh2 Rf3 $18) 32. Nxf6+ Qxf6 33. Qxg5+ Qxg5 (
33... Kf7 {is not much help} 34. Kd2 Qf2+ 35. Kc3 $18) 34. Rxg5+ Kh8 35. a4 Ba6
36. b4 Bc4 37. O-O-O Be2 38. Rdg1 Rf8 39. Bd1 (39. Rg7 $142 $5 {seems even
better} Rf1+ 40. Kd2 Rxg1 41. Rxg1 Bc4 $18) 39... Bd3 (39... Bxd1 {does not
save the day} 40. Kxd1 Rf6 41. b5 $18) 40. Rg7 Nf5 41. Rxc7 Nxe3 42. Rgg7 (42.
b5 {might be the shorter path} Nc4 43. Rxb7 Rc8 $18) 42... Be4 43. h6 Nxd1 44.
Kxd1 Rf1+ (44... Bf3+ {doesn't get the bull off the ice} 45. Ke1 Be4 46. Bc1 e5
47. Bg5 Bf5 48. Rge7 Rf7 49. Rxf7 Kg8 50. Rxf5 exd4 51. Rxd5 b5 52. Rd8#) 45.
Ke2 Rf8 46. Rgf7 Rg8 (46... Rxf7 {doesn't get the cat off the tree} 47. Rxf7
Bg6 48. Rxb7 Be8 49. a5 Kg8 50. a6 Bb5+ 51. Rxb5 Kf7 52. a7 Kg6 53. a8=Q e5 54.
Qg8+ Kf5 55. Bc1 Kf6 56. Rb6+ Ke7 57. Bg5+ Kd7 58. Qd8#) 47. Rg7 (47. h7 Rd8
48. Bc1 Ra8 49. Bf4 Bxh7 50. Rxh7+ Kg8 51. Be5 Rxa4 52. Rh8#) 47... Rf8 48.
Rcf7 Rc8 (48... Rxf7 {cannot change destiny} 49. Rxf7 Bg6 50. Rxb7 Be8 51. a5
Kg8 52. h7+ Kh8 53. a6 Bc6 54. b5 Bxb5+ 55. Rxb5 Kxh7 56. Rb7+ Kg6 57. a7 Kf5
58. a8=Q e5 59. Qf8+ Kg4 60. Rg7+ Kh4 61. Qh8#) 49. Rc7 {White has a mate
threat} (49. Bc1 Bg6 50. Rxg6 e5 51. Bg5 Rc2+ 52. Kf1 Rc1+ 53. Bxc1 b5 54. Rgg7
bxa4 55. Rf8#) 49... Rf8 50. Ba3 Bf3+ (50... e5 {does not improve anything} 51.
dxe5 d4 52. Bb2 Bd3+ 53. Kxd3 Rf3+ 54. Ke4 Re3+ 55. Kxd4 Rd3+ 56. Kxd3 b6 57.
Rc8#) 51. Ke3 Be4 52. b5 Rf3+ (52... Bg6 {doesn't improve anything} 53. Bxf8 e5
54. h7 Bxh7 55. Rxh7+ Kg8 56. Bd6 exd4+ 57. Kxd4 b6 58. Rcg7#) 53. Kd2 (53. Ke2
Rf8 54. Bxf8 e5 55. h7 Bd3+ 56. Kxd3 e4+ 57. Ke3 b6 58. Rg8#) 53... Rd3+ (53...
Rf2+ {doesn't change the outcome of the game} 54. Kd1 Rf1+ 55. Ke2 Rf8 56. Bxf8
e5 57. h7 Bxh7 58. Rxh7+ Kg8 59. Bb4 exd4 60. Rcg7#) 54. Ke1 (54. Ke2 Bf3+ 55.
Kxd3 Be4+ 56. Ke3 Bg6 57. Rc8+ Be8 58. Rxe8#) 54... Re3+ 55. Kf2 (55. Kd1 Bf3+
56. Kd2 Re2+ 57. Kd3 Be4+ 58. Kxe2 Bf3+ 59. Kxf3 e5 60. Rc8#) 55... Rf3+ 56.
Kg1 (56. Kg1 Rg3+ 57. Rxg3 e5 58. Bd6 Bg6 59. Rxg6 exd4 60. Be5#) 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "5.5"]
[White "Watanabe, Katsumi"]
[Black "Yoshii, Yukihiko"]
[Result "1-0"]
[ECO "C59"]
[WhiteElo "1604"]
[BlackElo "1797"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "47"]
[EventDate "2021.03.27"]

{[%mdl 8192] C59: Two Knights: 4 Ng5 d5 5 exd5 Na5 5 Bb5+ c6 6 dxc6 bxc6 7 Be2
} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6
8. Be2 h6 9. Nf3 Qc7 10. d4 e4 11. Ne5 Bd6 12. Bf4 (12. Bd2 O-O 13. O-O Nb7 14.
Na3 Bxe5 15. dxe5 Qxe5 16. Nc4 Qe7 17. Qc1 Re8 18. b3 Nd5 19. Qb2 Bf5 20. Rfe1
Nc5 21. Ne3 Bg6 22. Nxd5 cxd5 23. Rad1 Red8 24. Bb4 a5 25. Bc3 Ne6 {1/2-1/2 
(25) Nunn,J (2600)-Nikolic,P (2565) Naestved 1985}) (12. f4 exf3 13. Bxf3 Ba6
14. Kf2 O-O 15. Re1 Nc4 16. Nxc4 Bxc4 17. g3 Rfe8 18. Rxe8+ Rxe8 19. Nc3 Qd7
20. Kg2 Bb4 21. Bf4 Bxc3 22. bxc3 Nd5 23. Bd2 Qf5 24. Rb1 Ne3+ 25. Bxe3 Rxe3
26. Rb8+ Kh7 {Duman,A (2231)-Kilicaslan,H (2264) Ankara 2008 0-1}) 12... O-O
13. Bg3 Be6 $146 (13... c5 14. Nc3 a6 15. O-O Rb8 16. b3 Rb4 17. Nc4 Bxg3 18.
hxg3 Nxc4 19. Bxc4 Rd8 20. Ne2 Bg4 21. c3 Rb6 22. Qd2 Bxe2 23. Qxe2 cxd4 24.
cxd4 Rxd4 25. Bxa6 Rbd6 26. Rad1 Rxd1 27. Rxd1 Rxd1+ 28. Qxd1 {Koziak,V (2471)
-Kolosowski,P (2273) Dzwirzyno 2004 1/2-1/2 (49)}) (13... Rb8 14. Nc3 Rxb2 15.
O-O $15) 14. c4 Qe7 (14... Qb8 15. Nc3 Qxb2 16. Rc1 $15) 15. Qa4 {White
threatens to win material: Qa4xa5} (15. Nc3 Qb7 16. Qc2 $16) 15... Rac8 $4 {
releasing the pressure on the opponent} (15... Qb7 $142 {would bring relief}
16. Qc2 Rab8 $11) 16. Nc3 $18 Bc7 (16... c5 17. Nb5 (17. Qxa5 cxd4 18. O-O-O
Bb4 $17 (18... dxc3 $6 19. Qxc3 Rfd8 20. Kb1 $14)) 17... Nb7 18. Nxd6 Nxd6 19.
Nc6 $18) 17. b4 Nb7 (17... c5 18. bxc5 (18. bxa5 $6 cxd4 19. Nb5 d3 20. Nxc7
Rxc7 $16) 18... a6 19. O-O $18) 18. Nxc6 Qd7 19. Bxc7 (19. d5 {makes it even
easier for White} Bxg3 20. hxg3 Rfe8 $18) 19... Rxc7 (19... Qxc7 20. b5 $18)
20. d5 Bf5 21. O-O Nd6 (21... Nd8 {does not win a prize} 22. Nd4 $18) 22. c5
Nc8 (22... Nb7 {doesn't get the cat off the tree} 23. Rfd1 Nd8 24. Nb5 Nxc6 25.
Nxc7 (25. dxc6 $6 Qxc6 26. Qa5 Re7 $18) 25... Qxc7 26. dxc6 $18 (26. Qxc6 $143
Qe5 $18)) 23. Bb5 (23. Rad1 $142 $5 {seems even better} Qe8 $18) 23... Nxd5 24.
Nxd5 (24. Nxd5 Qxd5 25. Rad1 $18) 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "5.6"]
[White "Ito, Katsuhide"]
[Black "Sato, Yasuji"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "1294"]
[BlackElo "1498"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "65"]
[EventDate "2021.03.27"]

{[%mdl 8192] C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines} 1. e4 e5 2. Nf3
Nc6 3. Bb5 Nf6 4. Nc3 a6 5. Ba4 Bc5 6. O-O O-O 7. Nxe5 $146 (7. d3 b5 8. Bb3 h6
9. Nd5 d6 10. Be3 (10. c3 Ba7 11. a4 Bb7 12. Nxf6+ Qxf6 13. Bd5 Nd8 14. Be3 c6
15. Bb3 Ne6 16. Bxa7 Rxa7 17. axb5 cxb5 18. g3 Nc5 19. Bc2 d5 20. d4 exd4 21.
e5 Qe7 22. Qxd4 Raa8 23. Rae1 Rfd8 24. Nh4 Bc8 {Dominguez Perez,L (2754)
-Ponomariov,R (2731) Beijing 2013 1-0 (34)}) 10... Ba7 11. Qd2 Ng4 12. Rae1 Kh8
13. g3 Ne7 14. Bxa7 Rxa7 15. Nh4 c6 16. Ne3 Ng6 17. Nef5 Bxf5 18. Nxf5 Ne7 19.
Nh4 Ng6 20. Ng2 Qg5 21. Qe2 h5 {Nagy,M (2175)-Toth,G (2205) Hungary 2013 1-0 
(41)}) 7... d6 $4 {with this move Black loses his initiative} (7... b5 $142 {
is just about the only chance} 8. Bb3 Nxe5 $14) 8. Nxc6 $18 bxc6 9. Bxc6 (9. d4
Ba7 10. Bxc6 Rb8 $18) 9... Rb8 (9... Bg4 $5 10. Qe1 Rb8 $16) 10. d4 $18 Ba7 11.
Nd5 (11. Rb1 $142 $18) 11... Ng4 $2 (11... Nxd5 $142 12. Bxd5 Be6 $18) 12. h3
Nf6 13. Bg5 h6 (13... Be6 {cannot undo what has already been done} 14. Nxf6+
gxf6 15. Bh6 $18) 14. Nxf6+ gxf6 15. Bxh6 Rxb2 (15... f5 {does not help much}
16. Bxf8 Kxf8 17. exf5 Bxf5 18. Qd2 $18) 16. Qd3 (16. Qf3 $142 {finishes off
the opponent} Kh7 17. Qh5 Bxd4 $18) 16... Kh7 17. Bxf8 Qxf8 18. e5+ (18. Rfb1
$142 {might be the shorter path} Rb6 19. Bd5 $18) 18... Kh8 (18... f5 $18 {
there is nothing else anyway}) 19. exf6 Qh6 (19... Bb7 {is not the saving move}
20. Bxb7 Rxb7 21. Rae1 $18) 20. Qe4 (20. Rae1 $142 {and White takes home the
point} Be6 21. d5 Bd7 22. Bxd7 Rb8 $18) 20... Qxf6 (20... Qh7 {hardly improves
anything} 21. Qe7 Qg8 22. Rae1 $18) 21. Qe8+ Kg7 22. Qxc8 Bxd4 23. Qg4+ Kf8 (
23... Kh6 {doesn't change the outcome of the game} 24. Qe4 Be5 $18) 24. Qc8+ {
White forks: a6+c7} (24. Rae1 $142 {nails it down} Rb8 25. Re4 Be5 $18) 24...
Kg7 25. Qg4+ {Twofold repetition} Kf8 26. Rae1 Be5 (26... Rb8 {does not
improve anything} 27. Re4 Be5 28. f4 Bd4+ 29. Kh2 $18) 27. f4 Bd4+ 28. Kh1 Rb8
29. Rf3 Bc3 (29... d5 {doesn't improve anything} 30. Bxd5 Rd8 31. Re5 $18) 30.
Ref1 (30. Re4 $142 $5 {and White can already relax} Qg7 31. Qd7 Kg8 $18) 30...
Bd4 31. Rg3 Qh8 (31... Qg6 {is no salvation} 32. Qxg6 fxg6 33. Rxg6 $18) 32.
Qd7 Bb6 33. Re1 (33. Re1 Be3 34. Qxc7 Qh6 35. Qxb8+ Ke7 36. Qc7+ Ke6 37. Qd7+
Kf6 38. Qxd6+ Kf5 39. Qe5#) 1-0

[Event "Hokkaido Chess Championship 2021"]
[Site "?"]
[Date "2021.03.28"]
[Round "5.7"]
[White "Hayashi, Ryota"]
[Black "Wada, Katsuhiko"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "0"]
[BlackElo "0"]
[Annotator "FRITZ 11 SE (30S)"]
[PlyCount "98"]
[EventDate "2021.03.27"]

{[%mdl 8192] C50: Hungarian Defence and Giuoco Pianissimo} 1. e4 e5 2. Nf3 Nc6
3. Bc4 d6 4. Nc3 Nf6 5. h3 Be7 6. O-O O-O 7. d4 exd4 8. Nxd4 Ne5 9. Bb3 c5 10.
Nf3 c4 (10... Be6 11. Nxe5 dxe5 12. Qe2 Qc8 13. Nd5 Bxd5 14. exd5 Bd6 15. c4
Rb8 16. Bc2 Ne8 17. a4 Qd8 18. Ra3 g6 19. Re3 Ng7 20. b3 b6 21. Bb2 f6 22. g3
Qd7 23. Kg2 a6 24. Bd3 Nf5 25. Bxf5 {Cech,P (2427)-Palek,M (2225) Prague 2014
1-0 (35)}) 11. Nxe5 cxb3 12. Nf3 bxc2 $146 (12... bxa2 13. Rxa2 Be6 14. Ra4 Qb6
15. Be3 Qc7 16. Rd4 a6 17. Bf4 Rfd8 18. Qd2 Rac8 19. Rd1 Ne8 20. Bg5 Bxg5 21.
Nxg5 Qb6 22. Rb1 Qc5 23. Nf3 b5 24. Rc1 Qb6 25. Ne2 Rc4 26. c3 Rdc8 27. Ra1 {
Lilov,V (2443)-Bojkov,D (2477) Blagoevgrad 2009 1/2-1/2 (46)}) 13. Qxc2 Be6 14.
Be3 Qd7 {Black has a cramped position} 15. Rad1 Rfd8 (15... Rac8 $5 $11) 16. e5
$16 Ne8 17. exd6 (17. Ng5 g6 $16) 17... Bxd6 {White has an active position. .}
18. Ng5 {White threatens to win material: Ng5xh7} Bf5 19. Qb3 h6 {Black
threatens to win material: h6xg5} 20. Nf3 (20. Nge4 Be6 21. Qc2 Qc6 $11) 20...
Bxh3 21. Ne5 {White threatens to win material: Ne5xd7} (21. Rxd6 Qxd6 22. gxh3
Qg6+ 23. Kh2 Qd6+ 24. Kh1 Qc6 $11) 21... Qf5 (21... Be6 $142 22. Nxd7 Bxb3 23.
axb3 Rxd7 $15) 22. Nf3 $4 (22. Nxf7 $5 {deserves consideration} Qxf7 23. gxh3
$11) 22... Qg6 (22... Bxg2 $142 {and the rest is a matter of technique} 23. Nh4
Qh3 $19) 23. Nh4 $17 Qg4 24. Rd4 Bh2+ 25. Kxh2 Rxd4 26. Bxd4 Qxh4 27. Kg1 $2 (
27. gxh3 Qxd4 28. Qxb7 Qf4+ 29. Kh1 $15) 27... Be6 $4 {Black threatens to win
material: Be6xb3. there were better ways to keep up the pressure} (27... Bxg2
$5 28. Kxg2 Qg4+ 29. Kh1 Qxd4 30. Qxb7 Rd8 $17) 28. Qa4 (28. Qxb7 Rd8 29. Be3
Nd6 30. Qxa7 Nc4 $14) 28... Qg5 {White king safety improved} (28... Rd8 29. f4
$17) 29. Ne2 (29. Ne4 Qd5 30. Nc3 Qc4 31. Qxc4 Bxc4 $15) 29... h5 (29... b5 $5
30. Qd1 Nf6 $17) 30. Be3 $15 {White threatens to win material: Be3xg5} (30.
Bxa7 $2 {doesn't work because of} b6 {Deflection: a7} 31. Nf4 Qe7 $19) 30...
Qg4 31. Qc2 (31. Qxg4 hxg4 32. Nd4 Bd5 $15) 31... h4 32. Nf4 Qf5 (32... Rc8 33.
Qd2 $17) 33. Qd2 (33. Qxf5 $142 $5 {is an interesting alternative} Bxf5 34. Nd5
$15) 33... Bxa2 $17 34. Rc1 g5 {Black threatens to win material: g5xf4} (34...
Nf6 $142 $5 $17) 35. Rc5 Qb1+ 36. Rc1 {White threatens to win material: Rc1xb1}
Qf5 37. Rc5 Qb1+ 38. Rc1 {Twofold repetition} Qf5 {Draw by threefold repetition
} 39. Nh5 (39. Rc5 Qb1+ $11) 39... h3 (39... f6 $142 40. Rc5 Qb1+ 41. Kh2 b6
42. Nxf6+ Nxf6 43. Rxg5+ Kf7 $15) 40. Bxg5 $2 (40. Rc5 Qb1+ 41. Kh2 f6 $11)
40... hxg2 $4 {allows the opponent back into the game.} (40... f6 $5 41. Nxf6+
Nxf6 42. Bxf6 Qxf6 43. Rc3 $19) 41. Qe3 (41. Ng3 Qh3 $15) 41... Be6 (41... Qg6
$5 42. Ng3 $17) 42. Ng3 (42. Qg3 Qh3 43. Qxh3 Bxh3 $11) 42... Qh3 43. Bh6 (43.
Qe4 Nd6 44. Qxg2 Qxg2+ 45. Kxg2 Rc8 $15) 43... Kh7 (43... f6 44. Qe4 Rd8 45.
Qg6+ Kh8 46. f3 $15) 44. Bf4 Nf6 (44... Rd8 $142 $5 45. Qe4+ Kg7 46. Qxg2 Qxg2+
47. Kxg2 Nf6 $17) 45. Qd3+ $11 Kg7 46. Qf3 $4 (46. Rc5 Rc8 47. Rxc8 Bxc8 48.
Be5 $16) 46... Bd5 $19 47. Nf5+ Qxf5 48. Qg3+ Qg4 (48... Kh7 $5 {keeps an even
firmer grip} 49. Qh4+ Nh5 50. b4 $19) 49. Qe3 (49. Rc3 {desperation} Re8 50. f3
Qxg3 51. Bxg3 $19) 49... Rh8 (49... Rh8 50. Bh6+ Rxh6 51. Qxh6+ Kxh6 52. Re1
Qd4 53. Re4 Qxe4 54. f3 Qxf3 55. Kh2 g1=Q+ 56. Kxg1 Qg2#) 0-1

