[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.16"]
[Round "1.1"]
[White "Yoshii, Yukihiko"]
[Black "Takeuchi, Hiroshi"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1708"]
[BlackElo "1407"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "59"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8192] E91: King's Indian: Classical: 6 Be2, unusual replies including 6.
..c5 and 6...Bg4} 1. c4 d6 2. d4 Nf6 3. Nc3 g6 4. e4 Bg7 5. Nf3 O-O 6. Be2 Nbd7
7. O-O c5 8. h3 (8. Re1 a6 9. Bf1 b6 10. d5 Re8 11. h3 Bb7 12. Bf4 Nh5 13. Bh2
Ne5 14. Nxe5 dxe5 15. Rb1 Qd6 16. a3 Nf6 17. b4 Nd7 18. Na4 Rab8 19. bxc5 bxc5
20. Qd2 Qc7 21. f3 h5 22. Bg3 Kh7 {Nanu,C (2515)-Garbea,B (2270) Eforie Nord
2010 1-0 (31)}) 8... cxd4 9. Nxd4 Nc5 10. Bf3 a5 $146 (10... Bd7 11. Re1 Rc8
12. b3 a6 13. Bb2 Ne8 14. Qd2 e5 15. Nc2 Kh8 16. Rad1 Qh4 17. Nd5 f5 18. Nb6
fxe4 19. Nxd7 Bh6 20. Qc3 Nxd7 21. Rxe4 Qf6 22. Re2 Nc5 23. Ne3 Bg7 24. Nd5 Qh4
25. Bg4 {Djingarova,E (2349)-Raeva,E (2308) Bankia 2011 1-0 (80)}) (10... Ne6
11. Nc2 Rb8 12. Qe2 Bd7 13. Be3 b6 14. Rfd1 Ne8 15. Nb4 a5 16. Nbd5 Nc5 17. Bg5
f6 18. Bh4 e6 19. Ne3 Qe7 20. Rd2 Bc6 21. Rad1 Nb7 22. e5 Bxf3 23. Qxf3 g5 24.
exd6 Nexd6 25. Bg3 {Chernyshov,K (2400)-Badian,G (2180) Bratislava 1993 1-0 
(38)}) (10... a6 11. Be3 Rb8 12. a3 Bd7 13. b4 Ne6 14. Rc1 b6 15. Qd2 Ne8 16.
Rfe1 Nxd4 17. Bxd4 e5 18. Be3 f5 19. exf5 gxf5 20. Bg5 Bf6 21. Bh6 Bg7 22. Bg5
Bf6 23. Bh6 Bg7 24. Bxg7 Kxg7 25. Rcd1 {Beskov,V (2184)-Alexandrov,A (2260)
Kolomna 2010 1/2-1/2 (48)}) 11. Be3 {Black has a cramped position} Bd7 12. Rc1
{White has a very active position} Rc8 13. b3 {Controls a4} b6 14. Re1 Rb8 15.
Qc2 Qc8 16. Kh2 Ne8 {White has an active position} 17. Red1 f5 (17... Be5+ $5 {
should be considered} 18. Kg1 Nc7 $14) 18. exf5 $16 gxf5 19. Nd5 Bf6 (19... Rf7
20. g3 Nf6 21. Nb5 $16) 20. Bh6 Ng7 21. Qe2 (21. Qd2 Rf7 $16) 21... e6 (21...
e5 $5 {is noteworthy} 22. Nb5 e4 $14) 22. Nxf6+ $16 Rxf6 23. Qe3 (23. Bd2 $5
$16) 23... e5 $14 24. Bxg7 (24. Bd5+ Nge6 25. Qg3+ Rg6 26. Nxf5 Rxg3 27. Ne7+
Kh8 28. Nxc8 Rg6 29. Nxd6 Rxh6 30. Nf7+ Kg7 31. Nxh6 Kxh6 $16) 24... Kxg7 (
24... exd4 25. Rxd4 Kxg7 26. Qe7+ Rf7 27. Qxd6 $15) 25. Qg5+ Rg6 {Black
threatens to win material: Rg6xg5} 26. Qe7+ Kh6 (26... Kh8 27. Ne2 Re6 28. Qg5
$11) 27. Nb5 {[%cal Rb5d6,Rd1d6,Re7d6,Gg6d6] Increases the pressure on the
backward pawn. White threatens to win material: Nb5xd6} Bxb5 28. Rxd6 {Black
wins a piece.} Be8 $4 (28... Qe8 29. Qh4+ Kg7 30. Rxg6+ hxg6 31. cxb5 $11) 29.
h4 {White has a mate threat} (29. Qf8+ Kg5 30. h4+ Kf4 31. Rxg6 hxg6 32. Qh6+
g5 33. Qxg5#) 29... Rxd6 $4 (29... Bf7 $142 $1 {had to be tried to avoid defeat
} 30. Qxe5 Qf8 $11) 30. Qg5# (30. Qxd6+ $6 {is a useless try} Bg6 31. h5 Qd8
$11) 1-0

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.16"]
[Round "1.2"]
[White "Nakamura, Mitsuru"]
[Black "Kawamura, Takuto"]
[Result "0-1"]
[ECO "B48"]
[WhiteElo "1406"]
[BlackElo "1576"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "86"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8192] B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2} 1. e4 c5
2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Be3 Qc7 6. Nc3 a6 7. a3 Nf6 8. Be2 Be7 9.
O-O O-O 10. h3 $146 {Consolidates g4} (10. Nb3 b5 11. f4 d6 12. Bf3 Bb7 13. Qe1
(13. g4 Rfe8 14. g5 Nd7 15. Qe2 Bf8 16. Rad1 g6 17. Qf2 b4 18. axb4 Nxb4 19.
Rd4 Nc6 20. Rc4 Rac8 21. Rd1 Qd8 22. Ra1 Nce5 23. Rxc8 Nxf3+ 24. Qxf3 Qxc8 25.
Rd1 f5 26. gxf6 Nxf6 27. Nd2 Bg7 {Sinprayoon,P (2240)-Izquierdo,D (2270)
Thessaloniki 1988 1/2-1/2 (65)}) 13... b4 14. axb4 Nxb4 15. Qf2 d5 16. e5 Ne4
17. Bxe4 dxe4 18. Bb6 Qc8 19. Rae1 a5 20. Re3 a4 21. Nd4 Ra6 22. f5 f6 23. Nxa4
Rxa4 24. Nxe6 Nd5 {Trejbal,D (2200)-Banas,J (2350) Stary Smokovec 1976 0-1 (36)
}) (10. Kh1 Ne5 (10... Rd8 11. f4 d6 12. Qe1 Bd7 13. Qg3 b5 14. e5 Ne8 15. Ne4
Rac8 16. Bd3 g6 17. Nf3 dxe5 18. fxe5 Ng7 19. Bg5 Nh5 20. Qh4 Bxg5 21. Qxg5 f5
22. exf6 Qf4 23. g4 e5 24. gxh5 Bf5 25. f7+ {Ibragimov,A (2250)-Yandemirov,V 
(2500) Ekaterinburg 1997 1-0 (33)}) 11. f4 Nc4 12. Bc1 d6 13. Qd3 b5 14. Ndxb5
axb5 15. Nxb5 Qa5 16. Qxc4 Ba6 17. a4 Rfc8 18. Qd4 d5 19. Bd2 Qd8 20. exd5 Rxc2
21. d6 Bxd6 22. Bf3 Nd5 23. Bxd5 exd5 24. Bc3 Bf8 {Aleskerov,F (2314)-Kovalyov,
A (2616) Greensboro 2015 1/2-1/2 (35)}) (10. f4 d5 11. exd5 exd5 $11) 10... b5
$11 11. Re1 Bb7 12. Bf1 Rac8 13. Rc1 (13. Bd3 Ne5 $11) 13... Rfd8 14. Qe2 (14.
Bd3 d5 15. exd5 Nxd5 16. Nxd5 Rxd5 17. Nxc6 Qxc6 $15) 14... Na5 (14... Nxd4 15.
Bxd4 e5 16. Nd5 Nxd5 17. exd5 $15) 15. Qd2 {White has an active position} (15.
Bg5 h6 16. Bh4 Qb6 $15) 15... Bxa3 (15... d5 16. Ncxb5 axb5 17. Nxb5 $15) 16.
Bf4 {White threatens to win material: Bf4xc7} (16. Ndxb5 axb5 17. Nxb5 Nc4 18.
Bxc4 Qxc4 19. Nxa3 Qxe4 $11) 16... Qc5 17. Nd1 (17. bxa3 $5 {might be a viable
alternative} Qxc3 18. Qxc3 Rxc3 19. a4 bxa4 20. Bd2 $11) 17... e5 $17 18. Bxe5
Bb4 (18... Qxe5 19. bxa3 Nxe4 20. Qxa5 Qxd4 21. Qb4 $17) 19. c3 Qxe5 20. cxb4
Rxc1 21. Qxc1 Qxd4 22. bxa5 Rc8 (22... Nxe4 $2 {doesn't lead to the expected
results} 23. Qc7 Rf8 24. Qxb7 $18) 23. Qf4 (23. Qe3 Qxe4 24. Qxe4 Bxe4 $17)
23... Qb4 24. Nc3 (24. Qe3 Bxe4 25. Nc3 Bc6 $17) 24... Qxb2 $19 25. Nd5 Bxd5 ({
Inferior is} 25... Nxd5 26. exd5 g6 27. Qd6 $17) 26. exd5 Qc3 (26... Nxd5 27.
Qd6 Qc3 28. Qxa6 $16) 27. Re3 Qxa5 28. Rg3 $4 {but even a better move would
not have saved the game} (28. Qd6 h6 29. g3 $19) 28... Nh5 29. Rxg7+ (29. Qd6 {
does not improve anything} Nxg3 30. fxg3 g6 $19) 29... Nxg7 30. Qg5 (30. g4 {
doesn't change anything anymore} b4 31. Qe4 b3 $19) 30... Qd8 (30... Qe1 {
keeps an even firmer grip} 31. Qg3 $19) 31. Qg4 (31. Qh6 {cannot undo what has
already been done} d6 $19) 31... Rc5 (31... Rc1 $142 $5 {seems even better} 32.
g3 Qe7 33. Kg2 $19) 32. d6 (32. g3 {is not much help} Rxd5 33. Qe4 Qg5 $19)
32... a5 33. h4 (33. Bd3 {doesn't change the outcome of the game} a4 $19) 33...
Kh8 (33... a4 $142 $5 {and Black can already relax} 34. Qd4 Qb6 35. Qe3 $19)
34. Qf3 Rf5 (34... Nf5 $142 {might be the shorter path} 35. Qh5 Qf6 36. g3 $19)
35. Qh3 (35. Qe4 {doesn't do any good} Qe8 36. Qb1 Re5 $19) 35... Rh5 (35...
Qb6 $142 {and the rest is a matter of technique} 36. Qg3 a4 37. Bd3 $19) 36. g3
Ne6 37. Qg4 Rc5 38. h5 (38. Qf3 {is not the saving move} Qe8 $19) 38... Qg5 39.
Qf3 Kg7 40. g4 Qd5 41. Qg3 b4 42. Bd3 Rc1+ 43. Kh2 (43. Bf1 {doesn't get the
cat off the tree} Nd4 44. Qd3 Nf3+ 45. Kg2 Ne1+ 46. Kh3 Nxd3 47. Bg2 Nxf2+ 48.
Kg3 Qe5+ 49. Kxf2 Qf4+ 50. Bf3 Rc2+ 51. Ke1 Qd2+ 52. Kf1 Qf2#) 43... Qh1# (
43... Rh1#) 0-1

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.16"]
[Round "1.3"]
[White "Nishimori, Toshiyuki"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1565"]
[BlackElo "1203"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "57"]
[SourceVersionDate "2023.09.05"]

{[%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 f5 11. Bd3 Be6 12. Qh5 Bg7 13. c3 f4 14. Nc2 Rb8 (14... O-O 15. g3
f5 16. gxf4 exf4 17. Nxf4 Bf7 18. Qh3 Qg5 19. Ne2 Ne5 20. exf5 Rae8 21. Be4 Nc4
22. Rg1 Qd2+ 23. Kf1 Rxe4 {1/2-1/2 (23) Kogan,A (2569)-Munoz Pantoja,M (2452)
Tarragona 2007}) 15. O-O O-O $146 (15... Bxd5 16. exd5 Ne7 17. Be4 Ng6 18. Nb4
Rb6 19. a4 a5 20. Nc6 Qc7 21. axb5 Rxb5 22. b4 O-O 23. Rxa5 Rxa5 24. bxa5 Ra8
25. Bxg6 hxg6 26. Qe2 f5 27. Rb1 Rxa5 28. Nxa5 Qxa5 29. c4 e4 30. Kf1 {Isepy,J
(2194)-Varga,C (2186) Hungary 2001 1-0 (66)}) 16. a4 bxa4 17. Rxa4 Rxb2 18.
Rxa6 Qb8 $4 (18... Nb8 $142 {would bring relief} 19. Ra7 Nd7 $14) 19. Rxc6 $18
f5 (19... h6 $18 {no good, but what else?}) 20. Ne7+ Kh8 21. Ng6+ (21. exf5
$142 {and White has reached his goal} e4 22. fxe6 Qe8 23. Qxe8 Rxe8 24. Bxe4
Bf8 $18) 21... Kg8 22. Nxf8 Qxf8 23. Nb4 Bf7 (23... Qf7 {is the last straw} 24.
Qxf7+ Kxf7 25. exf5 Bb3 26. Rc7+ Kf6 $18) 24. Qxf5 Qe8 25. Rc8 Bg6 (25... Bf6 {
does not win a prize} 26. Rxe8+ Bxe8 27. Qxf6 h5 28. Ra1 Rb1+ 29. Bxb1 Kh7 30.
Ra7+ Bf7 31. Rxf7+ Kg8 32. Qg7#) 26. Rxe8+ Bxe8 27. Nd5 (27. Bc4+ d5 28. Bxd5+
Kh8 29. Qe6 Bf7 30. Qxf7 Rxb4 31. Qg8#) 27... Bf7 (27... Rb7 {does not save
the day} 28. Bc4 Rd7 29. Nf6+ Kf8 30. Nxh7+ Ke7 31. Qg5+ Bf6 32. Qxf6#) 28. Bc4
Rb7 29. Qc8+ (29. Qc8+ Bf8 30. Qxb7 Be7 31. Nxe7+ Kf8 32. Nf5 d5 33. Bb5 dxe4
34. Qc8+ Be8 35. Qxe8#) 1-0

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.16"]
[Round "2.1"]
[White "Kawamura, Takuto"]
[Black "Yoshii, Yukihiko"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "1576"]
[BlackElo "1708"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "83"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8192] E07: Closed Catalan: Main Line (5 Nf3 0-0 6 0-0 Nbd7)} 1. d4 d5 2.
c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 Nbd7 (5... c6 6. O-O (6. Qc2 Nbd7 7. Nbd2 b6
8. e4 O-O 9. e5 Ne8 10. h4 h6 11. O-O Ba6 12. Re1 Rc8 13. b3 c5 14. dxc5 Bxc5
15. Qd1 Nc7 16. a3 dxc4 17. Nxc4 Nb8 18. Nd6 Bxd6 19. exd6 Nd5 20. Bb2 Rc6 {
Ghaem Maghami,E (2609)-Xu,Y (2463) Al Ain 2015 1/2-1/2 (40)}) 6... Nbd7 7. Qc2
(7. Nbd2 O-O 8. Re1 Re8 9. e4 dxe4 10. Nxe4 Nxe4 11. Rxe4 Bf6 12. Qe2 Qa5 13.
Bd2 Qa6 14. Re3 Qb6 15. b4 Qc7 16. Rc1 Nf8 17. Re4 Bd7 18. Ne5 Bxe5 19. Rxe5
Ng6 20. Re3 Rac8 21. a4 a6 {Nabavi,P (2228)-Malachowski,M (2173) Germany 2010
1/2-1/2 (54)}) (7. b3 Ne4 8. Nfd2 Nxd2 9. Qxd2 O-O 10. Nc3 dxc4 11. bxc4 c5 12.
d5 Nb6 13. Qd3 Bf6 14. Rb1 Bd7 15. Ne4 exd5 16. Nxf6+ Qxf6 17. cxd5 Rad8 18.
Qa3 Rfe8 19. e4 a6 20. Bb2 Qg6 21. Qxc5 Bb5 {Hirn,O (2235)-Ponnath,L (2275)
Heroldsbach 1997 1-0 (36)}) 7... b6 8. Rd1 Ba6 9. b3 Rc8 10. Nbd2 c5 11. e4
cxd4 12. exd5 exd5 13. Nxd4 O-O 14. Nf1 b5 15. Ne3 bxc4 16. Nxd5 Nxd5 17. Bxd5
cxb3 18. Qxb3 Nc5 19. Qf3 Bf6 20. Rb1 {Harikrishna,P (2665)-Vocaturo,D (2545)
Wijk aan Zee 2012 1-0}) 6. Nbd2 $146 (6. O-O Ne4 7. Qc2 f5 8. b3 O-O 9. Ne1 Bf6
10. Bb2 c6 11. Nd3 Qe8 12. Nd2 b5 13. cxd5 cxd5 14. Nf3 a5 15. Rfc1 Ba6 16. Qc6
Qe7 17. Qc2 Rfc8 18. Qd1 b4 19. a3 Rxc1 20. Qxc1 Rc8 {Abdelnabbi,I (2414)-Adly,
A (2315) Cairo 2003 0-1 (54)}) 6... h6 {Prevents intrusion on g5} 7. Qc2 O-O 8.
O-O Re8 9. Re1 (9. e4 Nxe4 10. Nxe4 dxe4 11. Qxe4 Rb8 $14) 9... c6 (9... c5 10.
b3 $11) 10. b3 Bd6 11. Bb2 a5 12. Ne5 Nf8 (12... a4 $5 $14) 13. e4 $16 Bb4 14.
Bc3 Bxc3 15. Qxc3 dxe4 16. Nxe4 Nxe4 17. Bxe4 Qc7 18. Qf3 (18. c5 Nh7 $16)
18... Rd8 19. Rad1 $4 {throwing away the advantage} (19. Qe3 f6 20. Nf3 Bd7 $16
) 19... Rb8 $4 {weakening the position} (19... f6 $142 $17) 20. c5 $16 f6 (
20... f5 21. Bc2 $16) 21. Nc4 Bd7 22. h4 Be8 23. Bd3 Bf7 24. Nd6 (24. Qe3 Nd7
$16) 24... Rd7 25. Re3 b5 $2 (25... Rbd8 $142 $5 $16) 26. Be4 $18 Rb6 $4 {
the pressure is too much, Black crumbles} (26... Rbd8 $18) 27. Nxf7 Ra6 28. Nd6
Rxd6 (28... f5 {doesn't improve anything} 29. Bc2 $18) 29. cxd6 Qxd6 30. Rc3
Qa3 (30... b4 {is no salvation} 31. Rc2 $18) 31. Bxc6 Qxa2 (31... Qd6 {cannot
change what is in store for White} 32. d5 e5 33. Bxb5 $18) 32. Bxb5 (32. d5
$142 {keeps an even firmer grip} Qa3 33. dxe6 Qe7 34. Bxb5 Rb6 $18) 32... Rb6
33. Bc4 Qb2 (33... Qa3 {hardly improves anything} 34. d5 Qe7 35. dxe6 $18) 34.
Re3 (34. d5 Qxc3 35. Qxc3 e5 36. d6+ Kh8 37. d7 Nxd7 38. Rxd7 Kh7 39. Bd3+ f5
40. Bxf5+ Rg6 41. Qxe5 Kg8 42. Bxg6 a4 43. Qxg7#) 34... Qc2 35. Qe2 (35. d5 Rd6
36. Rc3 Qxd1+ 37. Qxd1 e5 $18) 35... Qf5 (35... Qxe2 {the only chance to get
some counterplay} 36. Rxe2 Rd6 $18) 36. g4 Qf4 37. Re4 (37. d5 Kf7 38. dxe6+
Ke7 39. Red3 Qe5 40. Qd2 f5 41. Rd7+ Kf6 42. Rf7+ Kg6 43. e7 Rb8 44. exf8=N+
Rxf8 45. Qd6+ Kh7 46. Qxe5 Rxf7 47. Bxf7 fxg4 48. Rd8 g3 49. Qe4+ g6 50. Qxg6#)
37... Qd6 38. Ra1 (38. Re1 $142 {makes it even easier for White} Rb8 39. h5 Kh7
$18) 38... Kf7 (38... Kh7 {does not solve anything} 39. Rxa5 Rb8 40. h5 $18)
39. Rxa5 Ng6 40. Ra7+ Ne7 41. Kg2 Kg6 (41... Ke8 {does not help much} 42. Rxe6
Qxe6 43. Bxe6 Rxe6 44. Qxe6 Kf8 45. Qxe7+ Kg8 46. Qxg7#) 42. Rxe6 (42. Rxe6
Qc6+ 43. Rxc6 h5 44. Qe4+ Nf5 45. Qxf5+ Kh6 46. Qxh5#) 1-0

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.16"]
[Round "2.2"]
[White "Takeuchi, Hiroshi"]
[Black "Nishimori, Toshiyuki"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1407"]
[BlackElo "1565"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "49"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8192] C01: French: Exchange Variation} 1. d4 e5 2. e3 d5 3. Nc3 exd4 4.
exd4 Nc6 5. Nf3 Bg4 (5... Bb4 6. h3 (6. a3 Bxc3+ 7. bxc3 Nge7 8. Rb1 O-O 9. Bd3
b6 10. O-O Bf5 11. Bxf5 Nxf5 12. Qd3 Qd7 13. Bf4 Rac8 14. Rfe1 f6 15. c4 dxc4
16. Qxc4+ Kh8 17. c3 Na5 18. Qe6 Qxe6 19. Rxe6 g5 20. Bg3 Nxg3 {Bouvet,L (2155)
-Velten,P (2379) Naujac 2012 0-1 (45)}) 6... Bf5 7. Bd3 Nge7 8. O-O Bxc3 9.
bxc3 O-O 10. Ba3 Re8 11. Re1 Bg6 12. c4 dxc4 13. Bxc4 Nf5 14. Rxe8+ Qxe8 15.
Qd2 Nd6 16. Bb3 a5 17. Bxd6 cxd6 18. Ba4 Qd8 19. Re1 Qc7 20. Qe3 {Kosintseva,T
(2536)-Rajlich,I (2465) Ningbo 2009 1/2-1/2 (50)}) 6. h3 $146 {White threatens
to win material: h3xg4} (6. Be2 Bb4 7. O-O Nge7 8. Ne5 Nxe5 9. Bxg4 Bxc3 10.
bxc3 Nxg4 11. Qxg4 O-O 12. Re1 Ng6 13. g3 Re8 14. Bd2 Qd6 15. h4 Re6 16. h5 Nf8
17. Rxe6 Nxe6 18. Re1 Re8 19. h6 g6 20. Qf3 f5 {Vlasak,L (2260)-Strzemiecki,Z 
(2395) Pardubice 2010 0-1 (43)}) 6... Bh5 7. Be2 Nf6 8. Bf4 (8. O-O Bb4 $14)
8... Bd6 {Black threatens to win material: Bd6xf4} 9. Bg3 (9. Bg5 $5 {has some
apparent merit} Be7 10. O-O $14) 9... O-O {Black castles and improves king
safety} 10. O-O Ne7 (10... Bxg3 11. fxg3 Qd6 12. g4 $15) 11. Ne5 Bxe2 {Black
forks: d1+f1} 12. Qxe2 Re8 13. Qd3 c6 {Covers b5} 14. a3 {Secures b4} a6 {
White has a very active position} 15. Rfe1 Nd7 $2 (15... Ng6 16. Nxg6 Bxg3 17.
Ne5 Bxe5 18. Rxe5 Rxe5 19. dxe5 $11) 16. Qf3 $4 {White has let it slip away} (
16. Nxf7 Kxf7 17. Bxd6 Kg8 $16) 16... f6 $2 (16... Bxe5 17. dxe5 g6 18. Bh4 $11
) 17. Nxd7 (17. Nxc6 $142 {would have given White a clear advantage} bxc6 18.
Bxd6 $16) 17... Qxd7 $14 18. Ne2 (18. Bxd6 Qxd6 19. Re3 Ng6 $14) 18... Ng6 19.
Bxd6 Qxd6 20. Ng3 Nh4 {Black threatens to win material: Nh4xf3} (20... Qd7 21.
Rad1 $11) 21. Qg4 {White threatens to win material: Qg4xh4} Ng6 (21... g5 22.
Re2 $11) 22. h4 $14 Re7 $4 (22... Qc7 $142 $5 $14 {would allow Black to play on
}) 23. h5 (23. Nf5 $142 {seems even better} Rxe1+ 24. Rxe1 $18) 23... Nf8 $4 {
the position was bad, and this mistake simply hastens the end} (23... Rae8 $142
24. Red1 Qf4 $18) 24. Nf5 Rxe1+ 25. Rxe1 (25. Rxe1 Qc7 26. Re7 Qxe7 27. Nxe7+
Kf7 28. Nf5 $18) 1-0

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.16"]
[Round "2.3"]
[White "Ito, Katsuhide"]
[Black "Nakamura, Mitsuru"]
[Result "0-1"]
[ECO "C97"]
[WhiteElo "1203"]
[BlackElo "1406"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "80"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8256] C97: Closed Ruy Lopez: Chigorin Defence: 11 d4 Qc7, sidelines} 1.
e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. h3 O-O
9. c3 Na5 10. Bc2 c5 11. d4 Qc7 12. b3 Bd7 (12... cxd4 13. cxd4 Nc6 14. a3 exd4
15. Bb2 Nd7 16. Nxd4 Bf6 17. Ra2 Nxd4 18. Bxd4 Bb7 19. Nc3 Rfe8 20. Re3 {
1/2-1/2 (20) Kavalek,L (2560)-Torre,E (2570) Hannover 1983}) 13. Bb2 $146 (13.
d5 c4 (13... g6 14. Nbd2 c4 15. b4 Nb7 16. Nf1 a5 17. a3 Nh5 18. h4 Nd8 19. Bh6
Re8 20. N1h2 f6 21. g4 Ng7 22. Be3 Nf7 23. Nd2 axb4 24. cxb4 Ra6 25. Nb1 Rea8
26. Qf3 Qc8 27. Kh1 Bd8 28. Rg1 {Mrva,M (2405)-Dworakowski,L (2340) Poznan
1995 1-0 (41)}) 14. Ba3 Bd8 15. Nbd2 Re8 16. bxc4 Nxc4 17. Nxc4 bxc4 18. Qe2
Bb5 19. Reb1 Rb8 20. Bc1 a5 21. a4 Ba6 22. Rxb8 Qxb8 23. Rb1 Qc8 24. Ba3 Qc7
25. Nd2 Be7 26. g3 Nd7 27. Qe3 g6 {Rolle,E (2214)-Nabavi,P (2202) Augsburg
2011 0-1 (46)}) 13... Rfe8 14. Nbd2 h6 {Covers g5} (14... Rab8 15. Nf1 $11) 15.
Nf1 Nb7 (15... exd4 16. cxd4 c4 17. Ne3 $16) 16. Ng3 (16. Ne3 Bf8 $14) 16... a5
(16... Na5 17. Qd2 $14) 17. a4 bxa4 18. bxa4 Rab8 19. Bd3 (19. Ba3 $5 $14)
19... Nd8 20. Qc2 (20. Rb1 Ne6 $11) 20... c4 {Black threatens to win material:
c4xd3} (20... cxd4 $5 21. Rab1 dxc3 22. Qxc3 Qxc3 23. Bxc3 Ne6 $17) 21. Bf1 $11
Ne6 22. Ba3 Nf4 23. Nf5 $2 (23. Rab1 $142 {would keep White alive} Bf8 24. Rxb8
Rxb8 25. Nd2 $11) 23... Bxf5 $19 24. exf5 Bf8 $4 {not a good decision, because
now the opponent is right back in the game} (24... e4 25. Nh2 $19) 25. Qa2 $4 {
gives the opponent counterplay} (25. dxe5 $5 {is an interesting alternative}
dxe5 26. Bxf8 Kxf8 27. Nd2 $11) 25... Rbc8 (25... e4 26. Nd2 d5 27. Bxf8 Kxf8
28. Qa3+ Kg8 29. Reb1 Rxb1 30. Rxb1 $19) 26. Nd2 {[%cal Ra2c4,Rd2c4,Rf1c4,
Gc7c4] c4 draws heavy fire} (26. dxe5 $5 dxe5 27. Bxf8 Kxf8 28. Red1 $17) 26...
Nd3 $17 27. Re3 e4 28. Rb1 (28. Bxd3 $5 cxd3 29. c4 $17) 28... Nd5 $19 29. Rxe4
$2 (29. Bxd3 Nxc3 30. Qxc4 Qxc4 31. Bxc4 Nxb1 32. Bxf7+ Kxf7 33. Nxb1 $19)
29... Nxc3 30. Rxe8 Rxe8 (30... Nxa2 $6 31. Bxd6 Qd7 32. Rxc8 Qxc8 33. Rb8 Qxf5
34. Rxf8+ Kh7 35. Bg3 $19) 31. Qc2 (31. Rb7 Qxb7 (31... Nxa2 $6 {is clearly
weaker} 32. Rxc7 d5 33. Bxf8 Kxf8 34. Nf3 $15) 32. Qxc4 Nf4 33. Qxc3 Re1 $19)
31... Nxb1 32. Qxb1 (32. Nxb1 {cannot change destiny} Re1 33. f6 gxf6 $19)
32... Re1 33. Qb5 (33. Qa2 {doesn't get the cat off the tree} c3 34. d5 Qb6 $19
) 33... d5 $1 {Discovered attack: d6, Bf8xa3} 34. Bxf8 (34. Qxd5 Bxa3 {
Discovered attack} (34... c3 {Passed pawn})) 34... Kxf8 (34... Qf4 35. Bd6 Qxd2
36. Kh2 Rxf1 37. Qe8+ Kh7 38. Qe3 $19) 35. Qxd5 (35. Nf3 {cannot change destiny
} Rd1 36. Qxd5 Qc8 $19) 35... c3 36. Nf3 (36. Nb3 {a fruitless try to alter
the course of the game} c2 37. g3 Kg8 $19) 36... c2 (36... Nb4 $142 {and Black
wins} 37. Nxe1 Nxd5 38. g3 $19) 37. Nxe1 Nxe1 38. Qc5+ (38. Qa8+ {is still a
small chance} Ke7 39. Qe4+ Kf6 40. Qh4+ g5 41. Qxh6+ Kxf5 42. Qh7+ Ke6 43. Qe4+
Kf6 44. Qxe1 $19) 38... Qxc5 39. dxc5 c1=Q 40. Kh2 Qxc5 (40... Qxc5 41. Kg1
Qxf5 $19) 0-1

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.16"]
[Round "3.1"]
[White "Nishimori, Toshiyuki"]
[Black "Kawamura, Takuto"]
[Result "1-0"]
[ECO "B49"]
[WhiteElo "1565"]
[BlackElo "1576"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "167"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8256] B49: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 7 Be2} 1. e4 c5 2. Nf3
e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 Nf6 8. O-O Bb4 9. Nxc6
Bxc3 10. bxc3 bxc6 11. Bf3 $146 (11. c4 c5 12. f3 O-O 13. Qd2 Ne8 14. Rab1 d6
15. Qc3 f5 16. exf5 exf5 17. Bf4 h6 18. Rfe1 Rb8 19. Rb3 Rb7 20. Bf1 Qd8 21.
Qd2 Re7 22. Qd5+ Kh7 23. Rxe7 Qxe7 24. Qc6 g5 25. Bd2 Ng7 {Magem Badals,J 
(2560)-Ljubojevic,L (2600) Pamplona 1996 1-0 (62)}) (11. Bd3 O-O 12. Bg5 Qe5
13. f4 Qxc3 14. Kh1 d5 15. exd5 Nxd5 16. Rf3 Qc5 17. Bxh7+ Kxh7 18. Rh3+ Kg8
19. Qh5 f6 20. Qh7+ Kf7 21. Bh6 Rg8 22. Rg3 Qf8 23. Qg6+ Ke7 24. c4 Bd7 25.
Bxg7 Qf7 {Milliet,S (2377)-Sean,W (2428) Jakarta 2015 0-1 (48)}) (11. f3 d5 $16
) 11... d6 {Consolidates c5} (11... d5 12. Qd3 a5 13. exd5 cxd5 14. Rfe1 $14)
12. Rb1 Rb8 13. Rb3 O-O 14. Qb1 Rb5 15. a4 (15. c4 Rxb3 16. cxb3 h6 $14) 15...
Rxb3 {Black forks: b1+c3} 16. Qxb3 e5 17. Bb6 {White threatens to win material:
Bb6xc7} Qb7 18. a5 Be6 19. Qa4 c5 (19... Rb8 20. Rd1 d5 21. Qb4 $11) 20. Re1 (
20. Rd1 Bd7 21. Qb3 Nxe4 $14) 20... Bd7 21. Qb3 Bc6 22. Qc4 Rc8 (22... Bb5 23.
Qb3 $11) 23. h3 {Prevents intrusion on g4} (23. Qd3 Qd7 $14) 23... Nd7 24. Rb1
(24. Qd3 Nxb6 25. axb6 Qxb6 26. Qxd6 a5 $11) 24... Nf6 {Black threatens to win
material: Nf6xe4} (24... Bb5 25. Qa2 (25. Rxb5 $2 axb5 26. Qxb5 Rb8 $19) 25...
c4 26. Bg4 $11) 25. Re1 $11 {Twofold repetition} Bb5 {Black threatens to win
material: Bb5xc4} 26. Qb3 Rb8 27. c4 {White threatens to win material: c4xb5}
Bc6 {Black threatens to win material: Bc6xe4} 28. Qd3 {White threatens to win
material: Qd3xd6} Qe7 29. Rb1 Rb7 30. c3 g6 {Secures h5} 31. Rd1 Rd7 32. Qe2 h5
33. g4 (33. h4 $5 $11 {should not be overlooked}) 33... hxg4 34. hxg4 Nh7 35.
Kg2 (35. Bg2 Ng5 $15) 35... Kg7 (35... Ng5 36. Rg1 $19) 36. Rh1 (36. Kf1 Ng5
$17) 36... Ng5 37. Kg3 (37. Qe3 f6 $17) 37... Qf6 (37... f5 $5 38. Bg2 fxe4 39.
Qe3 $19) 38. Qe3 $17 Rb7 (38... Nxf3 39. Qxf3 Qg5 40. Qe3 Qxe3+ 41. fxe3 Bxe4
42. Rd1 $17) 39. Rb1 (39. Bg2 Qe7 $15) 39... Rb8 (39... Qe7 40. Bg2 $17) 40.
Rh1 Bd7 (40... Re8 41. Bg2 $17) 41. Be2 Bc6 42. f3 (42. Bf3 Re8 (42... Qxf3+ $6
43. Qxf3 Nxf3 44. Kxf3 $11) 43. Bg2 Nxe4+ 44. Bxe4 Qf4+ 45. Qxf4 exf4+ 46. Kxf4
Rxe4+ (46... Bxe4 $6 47. Rd1 $11) 47. Kg3 Rxc4 $17) 42... Re8 (42... Rh8 43.
Rxh8 Kxh8 44. Bc7 $15) 43. Bd3 (43. Bc7 Rh8 44. Rxh8 Kxh8 $11) 43... Bd7 (43...
Qe7 44. Bc7 $15) 44. Be2 (44. Bc7 Rh8 45. Rxh8 Kxh8 $11) 44... Bc6 {Twofold
repetition} 45. Qd2 $4 {there were better ways to keep up the pressure} (45.
Bd3 $142 $11 {is just about the only chance}) 45... Bxe4 $1 $19 {Deflection: f3
} 46. Qe3 (46. fxe4 Nxe4+ {Mate attack Interception Decoy Deflection}) 46...
Bc6 47. Bc7 $4 {leading to a quick end} (47. Rh2 Qe7 48. Kf2 Rh8 49. Rxh8 Kxh8
$19) 47... Re6 (47... Qf4+ {might be the shorter path} 48. Qxf4 exf4+ 49. Kxf4
Ne6+ 50. Kg3 Nxc7 51. Kf2 $19) 48. Rf1 $4 {[%cal Yb8b6,Yb1b8,Yf1b1,Yh1f1]
Begins the manoeuvre Rh1-f1-b1-b8-b6. an oversight. But White was lost anyway.}
(48. Rd1 $142 $17) 48... Qe7 $19 49. Bb6 (49. Kf2 Nh3+ 50. Kg3 $19) 49... Qf6 (
49... f5 $142 {and Black takes home the point} 50. gxf5 gxf5 $19) 50. Bc7 Kf8
51. Rb1 Qe7 $4 {Black threatens to win material: Qe7xc7. with this move Black
loses his initiative} (51... Ke7 $142 {Black has the better game} 52. Bb8 Kd7
$19) 52. Rb8+ $11 Kg7 53. Bd8 {White threatens to win material: Bd8xe7} Qa7 {
Black threatens to win material: Qa7xb8} 54. Rb6 {The rook dominates} Nxf3 $4 (
54... Nh7 $142 {is the best chance} 55. Rxc6 Qd7 56. Bf6+ Nxf6 57. Rxa6 Qb7 $11
) 55. Bxf3 $18 Bxf3 (55... Qd7 56. Bxc6 (56. Rxc6 $6 Qxd8 57. Rxa6 e4 $18)
56... Qxd8 57. Rxa6 $18) 56. Qxf3 Qd7 (56... e4 {hoping against hope} 57. Qh1
g5 $18) 57. Rb7 (57. Rb8 $142 {makes it even easier for White} Qa7 58. Rb7 Qxb7
59. Qxb7 g5 60. Qxa6 e4 $18) 57... e4 58. Rxd7 exf3 59. Kxf3 (59. g5 $142 {
might be the shorter path} Kf8 60. Bf6 Re3 $18) 59... Kf8 60. Rb7 (60. Bc7 {
makes it even easier for White} f5 61. g5 Ke8 62. Rxd6 Ke7 63. Rxe6+ Kxe6 $18)
60... f5 (60... Ke8 {does not win a prize} 61. Bg5 $18) 61. g5 Re4 62. Bf6 Rxc4
63. Rg7 Ra4 (63... Rg4 {is not much help} 64. Rxg6 Kf7 65. Rg7+ Ke6 66. Ra7 $18
) 64. Rxg6 Rxa5 (64... Ra1 $18 {hardly improves anything}) 65. Bg7+ (65. Kf4
$142 $18 {secures the point}) 65... Ke7 $4 (65... Kf7 66. Rxd6 Kxg7 67. Kf4 $11
) 66. Bf6+ Kd7 $4 {stumbles just before the finish line} (66... Kf8 67. Kf4 Kf7
68. Rg7+ Ke6 $18) 67. Rg8 $18 Rb5 (67... Ra1 {is not the saving move} 68. g6
Rf1+ 69. Kg2 $18) 68. g6 Ke6 69. Bh8 Rb3 (69... Rb1 {there is nothing else
anyway} 70. g7 Kd5 $18) 70. Re8+ Kd7 71. Re3 (71. g7 $142 {and the result of
the game is clear: White will win} Rxc3+ 72. Re3 Rxe3+ 73. Kxe3 Kc6 $18) 71...
Rb8 (71... f4 {doesn't change the outcome of the game} 72. Kxf4 Rb1 73. g7 $18)
72. Bf6 d5 (72... Rg8 {doesn't change anything anymore} 73. g7 $18) 73. g7 Rg8
74. Re7+ Kd6 75. Re5 a5 76. Rxf5 Ke6 (76... a4 {does not improve anything} 77.
Kg4 Kc6 78. Be5 $18) 77. Kf4 a4 (77... Kf7 {does not solve anything} 78. Kg5
$18) 78. Kg5 a3 79. Re5+ Kd6 80. Re2 Kc6 81. Ra2 Ra8 82. Kg6 Kb5 83. Kf7 (83.
Rxa3 $142 $1 {ends the debate} Rg8 $18) 83... Kc4 (83... Ka4 {a last effort to
resist the inevitable} 84. Rh2 Kb3 $18) 84. Rxa3 $1 {Mate threat. .} (84. Rxa3
Rxa3 85. g8=Q $18) 1-0

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.16"]
[Round "3.2"]
[White "Nakamura, Mitsuru"]
[Black "Takeuchi, Hiroshi"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "1406"]
[BlackElo "1407"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "85"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8256] B08: Pirc Defence: Classical System} 1. e4 d6 2. d4 Nf6 3. Nc3 g6
4. Nf3 Bg7 5. Be2 O-O 6. O-O Nbd7 7. h3 c5 8. Be3 (8. e5 Ne8 9. exd6 Nxd6 10.
dxc5 Nxc5 11. Be3 b6 12. Bd4 Bb7 13. Bxg7 Kxg7 14. Qd4+ Kg8 15. Rfd1 Ne6 16.
Qh4 Rc8 17. Ng5 Nxg5 18. Qxg5 Rc5 19. Qf4 Qa8 20. Bf1 Nf5 21. Re1 f6 22. Rad1
e5 {Houska,J (2358)-Gabriel,C (2560) Germany 2003 1/2-1/2 (41)}) (8. d5 a6 9.
a4 Ne5 10. Nh2 Ne8 11. f4 Nd7 12. f5 Ne5 13. g4 Rb8 14. a5 b5 15. axb6 Rxb6 16.
Nf3 Nxf3+ 17. Rxf3 Nf6 18. g5 Nd7 19. Qf1 Ne5 20. Rg3 f6 21. Bxa6 Bxa6 22. Rxa6
Rxa6 {Petrenko,S (2207)-Gaponenko,I (2391) Kutansi 2015 0-1 (44)}) 8... b6 9.
Bd3 $146 (9. d5 Re8 10. Qd2 Nf8 11. Rad1 Qc7 12. Rfe1 a6 13. a4 Bb7 14. Bf4
Red8 15. Bc4 Ne8 16. Bh6 Qd7 17. Re2 Nc7 18. Rde1 Re8 19. e5 e6 20. Bxg7 Kxg7
21. exd6 Qxd6 22. Ne4 Qd7 23. Qc3+ e5 {Szirmai,E (2180)-Molnar,B (2160)
Zalakaros 1997 1-0}) (9. Qd2 cxd4 10. Bxd4 Bb7 11. Bd3 Re8 12. Rfe1 e5 13. Be3
d5 14. Bg5 d4 15. Nb5 Nc5 16. Qe2 Qd7 17. Bxf6 Bxf6 18. Rac1 Bxe4 19. Bxe4 Nxe4
20. Nc7 Ng3 21. Qc4 Rec8 22. Nd5 Bg7 23. Qb3 Rc5 {Stavskij,D (2155)-Panov,I 
(2303) Tomsk 2003 1-0 (31)}) (9. e5 Ne8 $14) 9... Bb7 (9... cxd4 10. Bxd4 Bb7
11. Qe2 $11) 10. Qe2 (10. d5 Ne5 $14) 10... a6 {Black has a cramped position}
11. Qd2 (11. Ng5 b5 12. dxc5 dxc5 $15) 11... b5 12. a3 (12. dxc5 $142 $5 {
should be investigated more closely} Nxc5 13. e5 $15) 12... c4 $17 13. Be2 Nxe4
14. Nxe4 Bxe4 15. Bh6 (15. a4 Nf6 $17) 15... Nf6 (15... Bxh6 $5 16. Qxh6 Bxc2
17. Ng5 $19) 16. Bxg7 $17 Kxg7 17. c3 Qd7 18. Ng5 Bb7 19. Rae1 (19. Bf3 Bxf3
20. Nxf3 h6 $17) 19... h6 20. Nf3 Rae8 21. Nh2 Ne4 22. Qe3 f5 23. f3 $2 (23.
Bf3 $142 $17) 23... Ng3 24. Rf2 f4 25. Qd2 Rf5 (25... e5 $142 $5 26. dxe5 Rxe5
27. Bd1 $19) 26. Bd1 $17 Ref8 (26... Bd5 $5 27. Nf1 Nh5 28. Bc2 $17) 27. Bc2
Rg5 28. Ng4 (28. Nf1 Nxf1 29. Kxf1 Bd5 $17) 28... h5 (28... Bd5 29. Nh2 $17)
29. Nh2 $17 Nf5 $4 {a weak move, ruining a winning position} (29... h4 $142 $17
) 30. Qxf4 $18 Nxd4 (30... Rg3 {doesn't get the bull off the ice} 31. Bxf5
Rxg2+ 32. Rxg2 Rxf5 33. Qg3 $18) 31. Qxd4+ (31. Qxg5 $142 {and White has it in
the bag} Rf6 32. cxd4 $18) 31... e5 32. Qd2 Rg3 (32... Qd8 {is no salvation}
33. h4 Rgf5 34. Bxf5 gxf5 35. f4 $18) 33. Rxe5 $1 {Deflection: d6.} Qxh3 (33...
dxe5 34. Qxd7+ {Deflection Pinning}) 34. Re7+ Rf7 35. Rxf7+ Kxf7 36. Qf4+ Ke6
37. Re2+ Kd7 38. Be4 (38. Qf7+ Kc6 39. Be4+ d5 40. Qxd5+ Kc7 41. Qxb7+ Kd8 42.
Rd2+ Ke8 43. Bc6+ Qd7 44. Rxd7 Rxg2+ 45. Kxg2 Kf8 46. Rd8#) 38... Bxe4 39. Qxe4
Kc7 40. Nf1 Kb6 41. Nxg3 Qxg3 42. Qd4+ Ka5 43. b3 $1 {Mate threat. .} (43. b3
cxb3 44. f4 g5 45. Qb4+ Kb6 46. Qxd6+ Ka5 47. Qb4+ Kb6 48. Re6+ Kb7 49. Qe7+
Kb8 50. Qd8+ Kb7 51. Rb6+ Ka7 52. Qb8#) 1-0

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.16"]
[Round "3.3"]
[White "Yoshii, Yukihiko"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "E65"]
[WhiteElo "1708"]
[BlackElo "1203"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "67"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8192] E65: King's Indian: Fianchetto: 6...c5 7 0-0 without d5 by White} 
1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. e3 d6 8. d4
cxd4 (8... Bd7 9. b3 cxd4 10. exd4 a6 (10... Qa5 11. Bb2 {1/2-1/2 (11) Estrada
Nieto,J (2340)-Habibi,A (2190) Budapest 1995}) 11. a4 Rc8 12. Re1 d5 13. c5 Bg4
14. h3 Bxf3 15. Bxf3 e6 16. Rb1 Nxd4 17. Qxd4 Ne4 18. Rxe4 Bxd4 19. Rxd4 Qf6
20. Rd3 Qf5 21. Be2 d4 22. Rxd4 Rxc5 23. Ne4 {Nepomniachtchi,I (2721)-Wang,H 
(2735) Beijing 2013 1-0 (48)}) 9. exd4 Qc7 $146 (9... Ng4 10. a3 Nh6 11. b4 Bg4
12. Ne2 e5 13. h3 Bxf3 14. Bxf3 exd4 15. Bb2 d3 16. Nc3 Ne5 17. Bd5 Qc8 18. Kh2
Nxc4 19. Bxc4 Qxc4 20. Rc1 Rac8 21. Na4 Qd5 22. Bxg7 Kxg7 23. Nc3 Qc4 24. Qd2 {
Hansen,V (2155)-Rasmussen,C (2303) Gausdal 2001 0-1 (61)}) (9... Bf5 10. b3 Ne4
11. Bb2 {1/2-1/2 (11) Csolto,R (2260)-Rogos,J (2153) Slovakia 2013}) 10. b3 Bf5
11. Nh4 Bd7 12. Bb2 d5 $2 (12... Qa5 $142 $5 $11 {is worth looking at}) 13.
Nxd5 Nxd5 14. Bxd5 (14. cxd5 Nb4 15. a3 Qc2 $16) 14... Rad8 15. Qd2 {White has
an active position} (15. Re1 e6 16. Be4 Nxd4 17. Bxd4 Bc6 $11) 15... Bh3 {
Black threatens to win material: Bh3xf1} (15... e6 16. Bxc6 Bxc6 17. Rad1 $11)
16. Rfd1 e6 {Controls f5} 17. Bxc6 Qxc6 18. Qe3 Bf6 (18... Rfe8 19. Rac1 $16)
19. Nf3 Bg5 $4 {further deteriorates the position} (19... Rfe8 $142 $16) 20. d5
$18 (20. Qxg5 $4 {will allow the opponent to give mate in 3} Qxf3 21. Qd5 Rxd5
22. cxd5 Qg2#) 20... Bxe3 21. dxc6 Bb6 22. cxb7 Rb8 23. Rd7 (23. Ba3 $142 $5 {
and White can already relax} Rxb7 24. c5 Ba5 $18) 23... f6 24. Rad1 $4 {
White is ruining his position} (24. Ba3 $142 {and White could have gained the
advantage} e5 25. Rd2 (25. Bxf8 $6 Bxd7 26. Bd6 Rxb7 $14) 25... Rxb7 26. Bxf8
Kxf8 27. Rc1 $18) 24... e5 $11 25. R7d2 {Black king safety improved} Rxb7 (
25... Bg4 26. Kg2 e4 27. Nd4 Bxd4 28. Rxd4 Bf3+ 29. Kh3 Bxd1 30. Rxd1 Rxb7 31.
Kg4 $11) 26. Ba3 Re8 27. c5 Ba5 (27... Bg4 28. Kg2 e4 29. Nd4 Bxd1 30. Rxd1 $11
(30. cxb6 $143 Bg4 $17)) 28. Rd6 {White threatens to win material: Rd6xf6} (28.
c6 Rc7 29. Rd8 Rxd8 30. Rxd8+ Kf7 31. Rd5 $11) 28... Bg4 $11 {Black threatens
to win material: Bg4xf3} 29. Rxf6 $2 (29. c6 $142 $5 {and White could well
hope to play on} Rf7 30. R1d5 $11) 29... e4 $17 30. c6 Rf7 $4 {Black lets it
slip away} (30... Rb6 $142 {was a good chance to save the game} 31. h3 Bxf3 $17
) 31. Rxf7 $18 exf3 $4 {Black falls apart.} (31... Kxf7 32. Ng5+ Kg8 $18) 32.
Rxa7 Re1+ (32... Bc3 {praying for a miracle} 33. Be7 Be6 $18) 33. Rxe1 Bxe1 34.
c7 (34. c7 Bc3 35. b4 $18) 1-0

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.17"]
[Round "4.1"]
[White "Nishimori, Toshiyuki"]
[Black "Yoshii, Yukihiko"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1565"]
[BlackElo "1708"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "67"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8256] C50: Hungarian Defence and Giuoco Pianissimo} 1. e4 e5 2. Nf3 Nc6
3. Bc4 Nf6 4. Nc3 d6 5. h3 Be7 6. d4 exd4 (6... O-O 7. Be3 Nxe4 8. Nxe4 d5 9.
Bxd5 Qxd5 10. Nc3 Bb4 11. O-O Bxc3 12. bxc3 Rd8 13. Qe2 h6 14. Rfd1 Qe4 15.
Nxe5 Nxe5 16. dxe5 Be6 17. f4 c5 18. Rd2 b6 19. a3 Bc4 20. Qf2 Rd5 21. Rad1 {
Ong,C (2315)-Wong,M (2415) Singapore 1997 1/2-1/2 (41)}) 7. Nxd4 Bd7 (7... O-O
8. Be3 Bd7 9. O-O Nxd4 10. Qxd4 Qc8 11. f4 Bxh3 12. gxh3 Qxh3 13. Kf2 Ng4+ 14.
Ke2 Bf6 15. Qd3 Bxc3 16. bxc3 d5 17. Bf2 Qh5 18. Qxd5 Ne5+ 19. Ke1 Nf3+ 20. Ke2
Qg4 21. Ke3 Nh2 22. e5 {Avramovic,Z (2238)-Djakovac,E (2204) Serbia 2009 0-1})
8. O-O $146 (8. Be3 a6 9. a4 O-O 10. O-O Re8 11. f4 Bf8 12. Qf3 Nb4 13. Bd3 c5
14. Nde2 Rc8 15. b3 Bc6 16. Ng3 d5 17. exd5 Nfxd5 18. Nxd5 Bxd5 19. Qf2 Rxe3
20. Qxe3 c4 21. Bxh7+ Kxh7 22. Qe5 cxb3 {Teloudis,A (2295)-Ris,R (2415) Porto
Carras 2008 0-1}) 8... O-O 9. a3 {Consolidates b4} a6 {Controls b5} 10. Be3 {
Black has a cramped position} Ne5 11. Ba2 b5 12. b4 (12. f4 Ng6 $16) 12... h6 {
Secures g5} 13. f3 {Prevents intrusion on g4} (13. f4 Ng6 $16) 13... Qc8 (13...
c5 14. Nf5 $11) 14. Nd5 (14. f4 $5 {should be examined more closely} Ng6 15.
Qd3 $14) 14... Nxd5 $11 15. Bxd5 c6 {Black threatens to win material: c6xd5}
16. Ba2 Qc7 17. Qe2 Bf6 18. Rad1 Rad8 (18... Rfe8 19. c3 $11) 19. f4 Ng6 (19...
Nc4 20. Bxc4 bxc4 21. Rfe1 $11) 20. f5 {White wins space} Ne5 21. Nf3 c5 (21...
Nxf3+ 22. Qxf3 Rfe8 23. Bf4 $11) 22. Qf2 (22. Nxe5 Bxe5 23. f6 cxb4 (23... Bxf6
$2 24. Rxf6 gxf6 25. Qf3 $18) 24. fxg7 Bxg7 $16) 22... Nxf3+ (22... Bc6 $5 23.
bxc5 Bxe4 24. cxd6 Qc6 25. Nxe5 Bxe5 $11) 23. gxf3 $14 Rc8 24. Kh1 c4 {This
push gains space} (24... Rfd8 $5 $14) 25. Rg1 $16 Kh7 26. Bd4 (26. Bb6 $142 $5
Qb7 27. Rxd6 $16) 26... Be5 $11 27. f4 {White threatens to win material: f4xe5}
Bc6 $4 {throwing away the advantage} (27... Bxd4 $142 {the only rescuing move}
28. Qxd4 f6 $11) 28. fxe5 $18 Bxe4+ 29. Kh2 dxe5 30. Qg3 $4 {what a pity,
victory was in sight} (30. Be3 Rg8 $18) 30... f6 (30... exd4 $142 {and Black
has reached his goal} 31. Bb1 Rfd8 $19) 31. Qg6+ $18 Kh8 32. Bc5 (32. Bb6 Qf7
33. Bb1 Qxg6 34. fxg6 Rce8 $18) 32... Rfe8 (32... Rg8 $142 $5 33. c3 Bf3 $16)
33. Rd6 Rcd8 $4 {the final mistake, not that it matters anymore} (33... Red8
34. Bb6 Rxd6 35. Bxc7 Rd2+ 36. Kg3 Rxc7 $18) 34. Bb6 $1 {Mate threat} (34. Bb6
Bxf5 35. Qxe8+ (35. Qxf5 $6 Qxd6 36. Bxd8 e4+ 37. Kh1 Qxd8 $11) 35... Rxe8 36.
Bxc7 Bxc2 37. Rxa6 $18) 1-0

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.17"]
[Round "4.2"]
[White "Kawamura, Takuto"]
[Black "Nakamura, Mitsuru"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "1576"]
[BlackElo "1406"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "67"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8192] D30: Queen's Gambit Declined: Systems without Nc3} 1. d4 d5 2. c4
c6 3. e3 Nf6 4. Nf3 e6 5. Bd3 dxc4 6. Bxc4 b5 7. Bd3 Bd6 $146 (7... a6 8. a4
Bb7 (8... b4 9. e4 Nbd7 (9... c5 10. e5 Nd5 11. dxc5 Bxc5 12. O-O Be7 13. Re1
Nd7 14. Nbd2 Nc5 15. Ne4 Nxd3 16. Qxd3 h6 17. Nd4 O-O 18. Nc6 Qc7 19. Nxe7+
Qxe7 20. Be3 Nxe3 21. Rxe3 Bb7 22. Nf6+ gxf6 23. Rg3+ Kh8 24. Qe3 {Garcia
Palermo,C (2455)-Van de Oudeweetering,A (2325) Dieren 1988 1-0}) 10. Bg5 h6 11.
Bh4 Bb7 12. e5 g5 13. Bg3 Nh5 14. Nbd2 Nxg3 15. hxg3 g4 16. Nh2 Nxe5 17. dxe5
Qxd3 18. Nxg4 O-O-O 19. Qe2 Be7 20. Qxd3 Rxd3 21. Ke2 Rhd8 22. Nc4 R3d4 23.
Nge3 {Granovskiy,A (2286)-Chifor,E (2234) Eforie Nord 2014 1-0 (44)}) 9. O-O
Nbd7 (9... b4 10. Qe2 c5 11. dxc5 Bxc5 12. e4 Nbd7 13. Nbd2 e5 14. Nc4 O-O 15.
b3 Ba7 16. Bg5 Bb8 17. Rad1 Re8 18. Nh4 h6 19. Bc1 Nc5 20. Bc2 Qc7 21. Nd6 Rd8
22. Nhf5 Kh7 23. Qc4 Ba7 24. Bb2 {Chiburdanidze,M (2540)-Polgar,S (2480)
Yerevan 1996 1-0 (41)}) 10. e4 Be7 11. Bg5 h6 12. Bh4 O-O 13. Qe2 Re8 14. Nbd2
Nh5 15. Bg3 Nxg3 16. hxg3 Nb6 17. b3 Bb4 18. Rfc1 Nd7 19. e5 Qb6 20. Ne4 Red8
21. Qe3 c5 22. dxc5 {Lein,A (2535)-Raicevic,V (2440) Hastings 1979 1-0}) (7...
Nbd7 8. O-O $14) 8. O-O Qc7 (8... Nbd7 9. a4 b4 10. Nbd2 $14) 9. Qc2 (9. e4 Be7
$16) 9... Bb7 (9... Nbd7 10. Nc3 $14) 10. Nbd2 (10. e4 $5 Be7 11. Nc3 $16)
10... Nbd7 $14 11. b3 Rc8 12. Bb2 O-O 13. Rac1 (13. e4 e5 $14) 13... Qb8 $11
14. h3 {Consolidates g4} h6 {Covers g5} 15. Rfd1 Rfd8 16. Bc3 b4 17. Bb2 c5 18.
Qb1 Bxf3 (18... cxd4 19. Bxd4 Nc5 20. Bc2 $11) 19. Nxf3 $11 ({Weaker is} 19.
gxf3 cxd4 20. Rxc8 Rxc8 21. Bxd4 Be5 $15) 19... a5 20. Nd2 (20. Ba6 Rc7 21. Be2
$14) 20... e5 (20... cxd4 $5 {must definitely be considered} 21. exd4 Nd5 $11)
21. Nc4 (21. d5 Nxd5 22. Bh7+ Kh8 $18) 21... exd4 22. exd4 Bf4 {Black
threatens to win material: Bf4xc1} 23. Rc2 {Black has an active position} Qa7
$2 (23... cxd4 $142 {is the best option Black has} 24. Bxd4 Ne5 $14) 24. g3 $18
Bb8 25. h4 Kh8 $2 (25... Re8 $142 $16) 26. Bf5 $18 Rc6 (26... cxd4 27. Bxd4 Qa6
28. Qc1 $18) 27. dxc5 (27. Ne5 {seems even better} Nxe5 28. dxe5 Rxd1+ 29. Qxd1
Ng8 $18) 27... Bxg3 (27... Rf8 28. Qc1 Kg8 $18) 28. fxg3 Qxc5+ (28... Rxc5 {
is still a small chance} 29. Bd4 Ne5 30. Bxc5 Rxd1+ 31. Qxd1 Qxc5+ 32. Rf2 Nxc4
33. Qd8+ Ng8 34. bxc4 g6 $18) 29. Rf2 Re8 (29... Qe7 {cannot change destiny}
30. Rfd2 $18) 30. Bxd7 Re2 (30... Nxd7 {praying for a miracle} 31. Rxd7 Rce6
32. Bxg7+ Kg8 $18) 31. Bd4 Qh5 32. Bxc6 Qg4 33. Qd3 (33. Rxf6 Kg8 34. Rxf7 Kxf7
35. Be5 Qe6 36. Qh7 Rxe5 37. Nxe5+ Qxe5 38. Rd7+ Ke6 39. Qg6+ Qf6 40. Qe8+ Qe7
41. Rxe7+ Kd6 42. Qd7+ Kc5 43. Re5+ Kb6 44. Qb7#) 33... Nh5 34. Rxe2 (34. Rxe2
f5 35. Re8+ Kh7 36. Re7 Nf4 37. Rxg7+ Qxg7 38. Qxf5+ Kg8 39. Bxg7 Ne2+ 40. Kg2
Kxg7 41. Rd7+ Kg8 42. Bd5+ Kh8 43. Rh7#) 1-0

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.17"]
[Round "4.3"]
[White "Takeuchi, Hiroshi"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1407"]
[BlackElo "1203"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "53"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8192] D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6
3 Bf4} 1. d4 d5 2. Bf4 Nc6 3. Nf3 Bf5 4. e3 f6 (4... Nb4 5. Na3 e6 6. c3 Nc6 7.
Nb5 Bd6 8. Nxd6+ cxd6 9. Qa4 Nge7 10. Qa3 Nc8 11. Be2 h6 12. Rc1 Qa5 13. Qxa5
Nxa5 14. Nd2 Rb8 15. b4 Nc6 16. b5 Na5 17. c4 dxc4 18. Nxc4 Nxc4 19. Bxc4 {
Apicella,M (2475)-Prie,E (2445) Nantes 1993 1/2-1/2}) 5. c3 Qd7 6. Nbd2 a6 $146
{Secures b5} (6... g5 7. Bg3 h5 8. h4 g4 9. Ng1 e5 10. Bb5 Bd6 11. e4 dxe4 12.
d5 Nge7 13. dxc6 bxc6 14. Ba4 Bg6 15. Nc4 O-O 16. Qd2 Kg7 17. Rd1 Rad8 18. Ne2
Qe6 19. Bb3 Qc8 20. Qc1 Nd5 21. O-O {Radlovacki,J (2379)-Kolognat,P (2305)
Sombor 2009 1-0 (39)}) 7. Be2 g5 {Black threatens to win material: g5xf4} 8.
Bg3 Nh6 (8... h5 9. h3 $11) 9. Qb3 {White threatens to win material: Qb3xb7}
O-O-O 10. c4 Na5 {Black threatens to win material: Na5xb3} (10... Be6 11. Qc3
g4 12. Nh4 $11) 11. Qb4 {White threatens to win material: Qb4xa5} (11. Qc3 Nxc4
12. Nxc4 dxc4 13. Bxc4 e6 $16) 11... Nc6 $14 {Black threatens to win material:
Nc6xb4} 12. Qc3 (12. Qa4 $142 Kb8 13. cxd5 Qxd5 14. O-O-O $11) 12... Nf7 $4 {
weakening the position} (12... e5 $142 {saving the game} 13. cxd5 Qxd5 $15) 13.
cxd5 $18 Na7 $4 {the position was bad, and this mistake simply hastens the end}
(13... Qxd5 $142 14. Bc4 Qd7 15. Bxf7 e5 $18) 14. e4 (14. Nc4 $142 {makes it
even easier for White} Nc6 15. dxc6 Qxc6 $18) 14... Bg6 (14... e6 {doesn't
change anything anymore} 15. Rc1 Bd6 16. exf5 exf5 17. Nc4 $18) 15. Rc1 (15.
Nc4 $142 {and the result of the game is clear: White will win} Kb8 16. Nb6 $18)
15... Nd6 16. Bd3 (16. Bxd6 exd6 17. Nxg5 Nb5 (17... fxg5 $4 18. Bg4 Kb8 19.
Bxd7 Rxd7 20. Qd3 $18) 18. Bxb5 axb5 $18) 16... Nab5 (16... g4 17. Nh4 $18) 17.
Qb4 (17. Qa5 {keeps an even firmer grip} Kb8 18. a4 Na7 $18) 17... e6 18. Qb3
$4 {a transit from better to worse} (18. dxe6 {might be the shorter path} Qxe6
19. Qa5 Rd7 $18) 18... g4 $4 (18... exd5 $142 {is the best chance} 19. e5 Bxd3
20. Qxd3 g4 21. exd6 Re8+ 22. Ne5 fxe5 23. dxe5 Bxd6 $11) 19. dxe6 $18 Qe7 (
19... Qe8 {doesn't get the cat off the tree} 20. a4 gxf3 21. axb5 fxg2 22. Rg1
$18) 20. Bxb5 (20. a4 $142 {makes sure everything is clear} gxf3 21. axb5 axb5
22. Bxb5 fxg2 23. Rg1 Nxb5 24. Ra1 $18) 20... Nxb5 (20... axb5 $142 21. e5 gxf3
22. exd6 fxg2 $16) 21. Nh4 $4 {White loses the upper hand} (21. a4 $142 {
White has a promising position} Nd6 22. Nh4 $18) 21... Rxd4 $14 22. Nxg6 hxg6
23. a4 {White threatens to win material: a4xb5} (23. Bf4 g5 24. Bg3 $14) 23...
Rb4 (23... Qb4 $142 $5 {deserves consideration} 24. Qxb4 Bxb4 25. axb5 Bxd2+
26. Ke2 Bxc1 27. Rxc1 Rh7 $15) 24. Qd5 $16 (24. axb5 $2 {would be great except
for} Rxb3 25. Nxb3 Qb4+ (25... Qxe6 26. Rxc7+ Kd8 27. O-O Qxb3 28. Rxb7 $15)
26. Nd2 Rh7 $19) 24... Nd6 25. b3 (25. e5 $142 fxe5 26. Bxe5 $16) 25... Bg7 $4
(25... Rh5 $142 {was necessary} 26. e5 fxe5 27. Bxe5 Nf7 28. Qd7+ Qxd7 29.
exd7+ Kxd7 30. Rxc7+ Kd8 $11) 26. Bxd6 $18 Qxd6 27. Qxd6 (27. Qxd6 c6 28. Qxb4
Bh6 29. Nc4 Bd2+ 30. Kxd2 b5 31. Na5 Rd8+ 32. Ke2 c5 33. Qxc5+ Kb8 34. Qc7+ Ka8
35. Qb7#) 1-0

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.17"]
[Round "5.1"]
[White "Kawamura, Takuto"]
[Black "Nishimori, Toshiyuki"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1576"]
[BlackElo "1565"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "53"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8192] A40: Unusual replies to 1 d4} 1. d4 e5 2. dxe5 d6 (2... f6 3. exf6
Nxf6 4. Nf3 Bc5 5. e3 d5 6. Be2 O-O 7. c4 c6 8. Nc3 Be6 9. cxd5 cxd5 10. O-O
Nc6 11. Ng5 Bf5 12. Bd3 Bg4 13. Qa4 h6 14. Nh7 Nb4 15. Nxf8 Nxd3 16. Ng6 Qd6
17. Qb5 {Vaisser,A (2573)-Raetsky,A (2393) playchess.com INT 2004 1-0}) 3. exd6
Bxd6 (3... Qxd6 4. Qxd6 Bxd6 5. Nc3 Ne7 6. Nb5 O-O 7. Nxd6 cxd6 8. Nf3 Be6 9.
Bf4 Nbc6 10. Bxd6 Rfd8 11. Bxe7 Nxe7 12. e3 Bg4 13. Be2 Bxf3 14. Bxf3 Nc6 15.
Bxc6 bxc6 16. Ke2 Kf8 17. Rhd1 Ke7 18. Rxd8 {Genov,P (2438)-Topak,E (2230)
Ankara 2010 1-0}) 4. Nf3 Nc6 $146 (4... h6 5. e4 Nc6 6. Nc3 Bg4 7. Be2 Nf6 8.
h3 Bxf3 9. Bxf3 O-O 10. Be3 Qe7 11. Qe2 Bb4 12. O-O Bxc3 13. bxc3 Rfe8 14. Rab1
Nxe4 15. Rxb7 Rad8 16. Qc4 Rd6 {1-0 (16) Cmilyte,V (2452)-Runarsson,G (2153)
Reykjavik 2003}) 5. e3 {Controls d4+f4} Nf6 6. Nc3 Bg4 {White is behind in
developement} 7. Be2 O-O 8. O-O Qe7 9. h3 Bf5 {Black has a very active position
} 10. Nd4 {White threatens to win material: Nd4xf5} Rad8 $4 (10... Bd7 $142 $14
{would save the game}) 11. Nxf5 $18 Qe5 12. Nxd6 Rxd6 13. Qe1 (13. Bd3 {
keeps an even firmer grip} Nb4 $18) 13... Rfd8 (13... Nb4 {does not save the
day} 14. Bd1 Rfd8 15. Qe2 $18) 14. a3 h5 (14... Qe6 {does not help much} 15. f4
$18) 15. Bd3 g5 (15... Na5 {cannot undo what has already been done} 16. f4 Qe6
17. e4 Rxd3 18. cxd3 Rxd3 19. f5 Qb6+ 20. Rf2 $18) 16. Bd2 (16. f4 {might be
the shorter path} gxf4 17. Rxf4 Nd7 $18) 16... g4 17. f4 gxf3 (17... Qe6 {
does not win a prize} 18. hxg4 Nxg4 19. Ne4 $18) 18. Rxf3 Kh8 (18... Nd7 {
doesn't get the bull off the ice} 19. Qh4 Nf8 20. Ne4 $18) 19. Qh4 Rg8 (19...
Rxd3 {is not much help} 20. cxd3 (20. Qxf6+ $6 {is a useless try} Qxf6 21. Rxf6
Rxd2 $16) 20... Rxd3 21. Rxf6 $18) 20. Raf1 Nh7 21. Rxf7 Rh6 22. Ne4 Qe6 23.
Nc5 Qd5 (23... Rxg2+ {cannot change what is in store for White} 24. Kxg2 Rg6+
25. Kh1 Qd5+ 26. Be4 Qe5 27. Bxg6 Ng5 28. Qxh5+ Kg8 29. Bh7+ Kh8 30. Rf8+ Kg7
31. Rg8#) 24. Rxh7+ Rxh7 25. Bc3+ Ne5 26. Qf6+ Rhg7 (26... Rgg7 {is no
salvation} 27. Be4 Qxe4 28. Nxe4 Rh6 29. Qxh6+ Kg8 30. Bxe5 Rxg2+ 31. Kxg2 b6
32. Qg7#) 27. Qh6+ (27. Qh6+ Rh7 28. Qxh7#) 1-0

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.17"]
[Round "5.2"]
[White "Takeuchi, Hiroshi"]
[Black "Yoshii, Yukihiko"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1407"]
[BlackElo "1708"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "104"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8256] A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems} 1. d4 Nf6
2. Bf4 d6 3. e3 g6 4. Nf3 Bg7 5. Bd3 O-O 6. O-O (6. Nbd2 c5 7. O-O Nh5 8. Bg5
h6 9. Bh4 Nc6 10. c3 Be6 11. Re1 Qd7 12. a4 b6 13. Rb1 f5 14. b4 cxb4 15. cxb4
Nf6 16. Bxf6 Bxf6 17. b5 Na5 18. e4 Rac8 19. Nf1 fxe4 20. Bxe4 Kg7 {Munguntuul,
B (2410)-Camacho,C (2214) Tromso 2014 1-0 (34)}) 6... Nbd7 (6... c5 7. c3 Nc6
8. h3 a6 9. a4 b6 10. Nbd2 Bb7 11. Qc2 Qc7 12. Rfe1 Na5 13. Be2 h6 14. Rad1
Rad8 {1/2-1/2 (14) Gubajdullin,A (2455)-Logashov,S (2325) Moscow 2009}) 7. c3
$146 (7. h3 Qe8 (7... b6 8. c4 Bb7 9. Nc3 Qe8 10. Be2 a6 11. a4 e5 12. Bh2 a5
13. Nb5 Rc8 14. Na7 Ra8 15. Nb5 Rc8 16. Na7 e4 17. Nd2 Ra8 18. Nb5 Qd8 19. Nb3
Ne8 20. Qd2 Qe7 21. Rac1 c6 22. Na3 {Alvarez Fernandez,E (2172)-Llobel Cortell,
E (2400) Oropesa del Mar 2001 0-1 (39)}) 8. e4 e5 9. dxe5 dxe5 10. Be3 b6 11.
Nc3 Bb7 12. Qe2 Qe7 13. Ba6 Bxa6 14. Qxa6 Qb4 15. Rfb1 Nc5 16. Bxc5 Qxc5 17. a3
Nh5 18. Rd1 Qc6 19. Qb5 Qxb5 20. Nxb5 c6 21. Nc3 Rad8 {Abhilash,R (2269)
-Iskandarov,M (2396) Maribor 2012 1/2-1/2 (72)}) (7. Nbd2 Qe8 8. Ne4 Nxe4 9.
Bxe4 e5 10. Bg3 exd4 11. Bd5 dxe3 12. Re1 exf2+ 13. Bxf2 Ne5 14. Bd4 Nxf3+ 15.
Bxf3 Bxd4+ 16. Qxd4 Qb5 17. Kh1 Be6 18. Re4 Rae8 19. Qxa7 Qxb2 20. Rae1 Ra8 {
0-1 (20) Abdulla,A (2233)-Abdul,M (2268) Fujairah 2008}) (7. Nc3 Re8 $11) 7...
Re8 8. h3 $4 {Prevents intrusion on g4} (8. Bc2 $142 $11 {would bring relief})
8... e5 $19 9. Bc4 (9. Bg5 e4 10. Bc2 exf3 11. Qxf3 $19) 9... exf4 10. exf4 Nb6
11. Bb3 h6 (11... Nfd5 {might be the shorter path} 12. Ng5 h6 13. Qf3 hxg5 14.
Bxd5 Nxd5 15. Qxd5 gxf4 16. Nd2 $19) 12. Nbd2 Nh5 (12... Nbd5 $142 $5 {and
Black can already relax} 13. Nh2 Nxf4 14. Qf3 $19) 13. f5 Bxf5 (13... gxf5 $142
$5 {makes it even easier for Black} 14. Re1 $19) 14. g4 Bxg4 $1 {a devastating
blow} 15. hxg4 Nf4 16. Qc2 $2 (16. Nh2 d5 17. Re1 Rxe1+ 18. Qxe1 $19) 16... Qd7
17. Nh2 Kh8 (17... Re2 $142 {and Black has triumphed} 18. Qc1 h5 $19) 18. Ne4
d5 (18... a5 {makes it even easier for Black} 19. a4 $19) 19. Ng3 (19. Nc5 Qe7
20. Nd3 Ne2+ 21. Kh1 a5 $17) 19... Re7 (19... h5 $142 $5 {might be the shorter
path} 20. Rae1 $19) 20. Qd2 Qd6 21. Rae1 Rae8 22. Rxe7 Rxe7 23. Re1 Rxe1+ 24.
Qxe1 Qe6 25. Qxe6 (25. Qd2 Qf6 $17) 25... fxe6 $19 26. Nf3 Bf6 (26... Kg8 27.
Kf1 $19) 27. Kf1 $17 Kg7 28. Ne5 $4 {White falls apart} (28. Ne2 $142 Nd3 29.
Bc2 Nxb2 30. Nf4 $17) 28... Bxe5 $19 29. dxe5 Nd3 30. f3 (30. Kg2 {a fruitless
try to alter the course of the game} Kf7 $19) 30... Nxe5 31. Ke2 c5 (31... Kf6
{and Black can already relax} 32. Nf1 $19) 32. Nf1 (32. Bd1 Nf7 $19) 32... c4 (
32... Kf6 $5 {seems even better} 33. Ne3 $19) 33. Bc2 Nbd7 34. Nd2 (34. Ke3 Kf6
$19) 34... Nc5 35. b3 b5 36. b4 (36. Ke3 {doesn't change the outcome of the
game} Kf6 $19) 36... Ncd3 37. a4 a6 (37... bxa4 {keeps an even firmer grip} 38.
Bxa4 h5 39. gxh5 gxh5 40. Nf1 $19) 38. Nf1 (38. axb5 {does not improve anything
} axb5 39. Ke3 h5 $19) 38... Kf6 39. axb5 axb5 40. Ng3 Kg5 41. Ke3 Kh4 42. Ne2
(42. Nf1 {doesn't improve anything} h5 43. gxh5 gxh5 $19) 42... Ne1 (42... Nxf3
$142 {and Black can already relax} 43. Bd1 Nh2 $19) 43. f4 (43. Nd4 Kg3 44.
Ne2+ Kg2 45. Nf4+ Kf1 46. Bd1 Ng2+ 47. Nxg2 Kxg2 48. f4 $19) 43... Nxc2+ 44.
Kd2 Nf3+ 45. Kxc2 Kxg4 46. Kd1 Kh3 (46... h5 {seems even better} 47. Nc1 Kh3
48. Kc2 $19) 47. Nc1 Kg2 (47... h5 $142 $19 {makes it even easier for Black})
48. Ke2 h5 49. Ke3 h4 50. Ne2 h3 51. Nd4 Nxd4 52. Kxd4 h2 (52... h2 53. Kc5
h1=Q 54. f5 gxf5 55. Kd6 d4 56. Kxe6 dxc3 57. Kd5 c2 58. Kc6 Kg3+ 59. Kd7 Qd5+
60. Kc7 c1=Q 61. Kb6 Qe3+ 62. Kc7 Qa7+ 63. Kc8 Qab7#) 0-1

[Event "SapporoSummer2023"]
[Site "?"]
[Date "2023.07.17"]
[Round "5.3"]
[White "Nakamura, Mitsuru"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "D08"]
[WhiteElo "1406"]
[BlackElo "1203"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "59"]
[SourceVersionDate "2023.09.05"]

{[%mdl 8256] D08: Albin Counter Gambit} 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6
5. a3 a5 6. g3 (6. e3 Bc5 7. exd4 Bxd4 8. Be2 Be6 9. O-O Bxe5 10. Qb3 Qc8 11.
Nxe5 Nxe5 12. f4 Nc6 13. f5 Bxf5 14. Qg3 Nge7 15. Qxg7 Rg8 16. Qf6 Qe6 17. Qxe6
Bxe6 18. Nc3 Nd4 19. Bd3 O-O-O 20. Bxh7 Rh8 {Goossens,E (2209)-Webb,L (2260)
Germany 2013 1/2-1/2 (31)}) 6... Nge7 7. Bg2 Ng6 8. Bf4 $146 (8. Bg5 Qd7 9. e6
fxe6 10. O-O Bc5 11. Nbd2 h6 12. Ne4 Bf8 13. Bd2 e5 14. Ne1 Be7 15. Nd3 O-O 16.
b4 axb4 17. axb4 Rxa1 18. Qxa1 Qg4 19. b5 Nd8 20. e3 Ne6 21. f3 Qf5 22. f4 exf4
{Kazhgaleyev,M (2618)-Semiev,S (2406) Dubai 2011 1-0 (33)}) (8. O-O Be6 9. Nbd2
Qd7 10. b3 Rd8 11. Ne4 Bf5 12. Ne1 Ngxe5 13. Nd3 Nxd3 14. exd3 Be7 15. Bd2 O-O
16. f4 Bg4 17. Qc2 f5 18. Ng5 Bxg5 19. fxg5 Rde8 20. Rae1 Rxe1 21. Rxe1 Re8 22.
Qb1 Ne5 {Kadziolka,B (2359)-Tuturin,S (2245) Pardubice 2006 1/2-1/2 (36)}) (8.
Nbd2 Ngxe5 9. Qa4 Bd7 $14) 8... Bg4 (8... Be7 9. Qd3 $11) 9. Qb3 {White
threatens to win material: Qb3xb7} Rb8 (9... Qc8 10. Nbd2 $11) 10. Nbd2 Nxf4 (
10... Be7 $5 $14) 11. gxf4 $16 Be7 12. O-O (12. O-O-O $5 $16) 12... O-O $14 13.
Rfe1 Kh8 (13... Qd7 14. Qd3 $14) 14. Rad1 f6 {Covers g5} 15. h3 Bxf3 (15... Bf5
16. e4 dxe3 17. Qxe3 fxe5 18. fxe5 $14) 16. Nxf3 $16 ({Instead of} 16. Bxf3
fxe5 17. fxe5 Nxe5 $17) 16... fxe5 17. fxe5 Bc5 18. e3 Qe7 $4 {another bit of
territory lost} (18... Rf5 $142 $16) 19. exd4 $18 Nxd4 (19... a4 {is one last
hope} 20. Qe3 Ba7 $18) 20. Nxd4 (20. Rxd4 $6 Rxf3 21. Qxf3 Bxd4 $14) 20... Qh4
21. Qg3 Qh6 (21... Qxg3 {does not solve anything} 22. fxg3 Rbd8 23. Re4 $18)
22. Re2 (22. Nf3 {seems even better} Qe6 $18) 22... Rf4 (22... Rbd8 {hardly
improves anything} 23. Red2 $18) 23. Re4 Rbf8 (23... g5 {no good, but what
else?} 24. Qc3 Qh5 $18) 24. Rxf4 Rxf4 25. Nf3 (25. Ne6 $142 $1 {ends the debate
} Qxe6 (25... Bxf2+ {succumbs to an attractive mate} 26. Qxf2 Qxe6 27. Rd8+ Qg8
28. Rxg8+ Kxg8 29. Bd5+ Kh8 30. Qxf4 h6 31. Qf7 Kh7 32. Be4+ Kh8 33. Qf8#) 26.
Qxf4 Be7 $18) 25... g6 (25... Rf8 26. Rd7 b6 27. b4 Bxf2+ 28. Qxf2 Qc1+ 29. Ne1
$18) 26. e6 Bd6 (26... Kg8 {is the last straw} 27. Rd7 Qf8 $18) 27. Rxd6 $1 {
finishing him off} cxd6 28. Ng5 Qg7 29. Qxf4 Qxb2 (29... h6 {doesn't do any
good} 30. Nf7+ Kg8 31. e7 Qxb2 32. e8=Q+ Kg7 33. Qh8#) 30. Qf8# 1-0

