[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.14"]
[Round "1.1"]
[White "kuramoto, koutarou"]
[Black "Sugimoto, Koichi"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1382"]
[BlackElo "1817"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "54"]
[EventDate "2024.07.14"]

{[%mdl 8192] B23: Closed Sicilian: Lines without g3} 1. e4 c5 2. Nc3 g6 3. f4
Bg7 4. Nf3 e6 5. Bc4 $146 (5. d4 cxd4 6. Nb5 (6. Nxd4 a6 7. Be3 b5 8. Bxb5 axb5
9. Ndxb5 Ne7 10. Qd6 O-O 11. Bb6 Nf5 12. exf5 Qh4+ 13. g3 Qh5 14. Bd4 Bxd4 15.
Qxd4 Nc6 16. Qd2 Qxf5 17. Nd6 Qa5 18. Nce4 f5 19. Qxa5 Nxa5 20. Nc5 Nc6 {
Najer,E (2500)-Kron,V (2450) Moscow 1998 1-0 (39)}) 6... Qb6 7. e5 Nc6 8. Nd6+
Kf8 9. Bd3 Nge7 10. O-O h6 11. Kh1 a6 12. a3 Qc7 13. Be4 f5 14. Bxc6 dxc6 15.
Qxd4 c5 16. Qf2 b6 17. b4 c4 18. Qe2 Bd7 19. Nd4 Nd5 {Rendle,T (2393)-Zuse,K 
(2274) Gibraltar 2008 1-0}) (5. e5 d5 6. d4 cxd4 7. Nb5 Bf8 8. Bd3 (8. Nbxd4
Nc6 9. c3 a6 10. Be3 Nh6 11. Bd3 Nxd4 12. Bxd4 Be7 13. Qd2 Bd7 14. O-O Bb5 15.
Bxb5+ axb5 16. a3 Qc7 17. h3 Nf5 18. Qf2 h5 19. Rad1 h4 20. Rfe1 Rh5 21. Nh2
Ng3 22. Ng4 Ne4 {Lewtak,D (2340)-Wisniowska,K (2187) Krakow 2014 1/2-1/2}) 8...
Nc6 9. O-O Qb6 10. Kh1 Bd7 11. Qe1 Nb4 12. Nbxd4 Nxd3 13. cxd3 Rc8 14. Be3 Qxb2
15. Qh4 Be7 16. Qg3 h5 17. Rab1 Qxa2 18. Rxb7 Qa6 19. Rfb1 Qxd3 {Lanc,A (2344)
-Gazik,V (2291) Slovakia 2015 0-1 (67)}) (5. d4 $5 {must definitely be
considered} cxd4 6. Nxd4 $14) 5... Ne7 $11 6. d4 cxd4 7. Nxd4 a6 {Covers b5} (
7... O-O 8. e5 $11) 8. a4 (8. Be3 O-O $14) 8... O-O 9. O-O {Black has a
cramped position. Black's piece can't move: c8} (9. Bb3 d5 10. e5 Nbc6 $11)
9... Qb6 (9... d5 10. exd5 Nxd5 11. Bxd5 exd5 $11) 10. e5 {White gets more
space} (10. Be3 $142 {and White can hope to survive} Nbc6 11. e5 Nxd4 12. Bxd4
$11) 10... Nf5 $17 11. Nce2 d6 12. Kh1 Nxd4 (12... dxe5 13. Nxf5 exf5 14. Nc3
$17) 13. a5 Qc5 (13... Qc7 $5 14. Qxd4 dxe5 15. fxe5 Nc6 $17) 14. Qxd4 $15 Qxd4
15. Nxd4 dxe5 16. fxe5 Bxe5 17. c3 {Secures d4} Bd7 18. Bh6 (18. Rd1 Bxd4 19.
Rxd4 Bb5 20. Bxb5 axb5 $15) 18... Bg7 $17 19. Bg5 Nc6 20. Bf6 (20. Nf3 $5 $15)
20... Bxf6 $17 21. Rxf6 Kg7 22. Rf2 Nxd4 23. cxd4 Bc6 24. Rd1 Rad8 25. Rfd2 Rd6
26. d5 (26. Kg1 $5 $17) 26... exd5 27. Bxd5 $4 {the position was bad, and this
mistake simply hastens the end. .} (27. Kg1 $142 $19) 27... Rfd8 0-1

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.14"]
[Round "1.2"]
[White "Yoshii, Yukihiko"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "1596"]
[BlackElo "1156"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "63"]
[EventDate "2024.07.14"]

{[%mdl 8192] A36: Symmetrical English vs ...g6: 4 Bg2 Bg7} 1. c4 c5 2. Nc3 Nc6
3. g3 g6 4. Bg2 Bg7 5. e3 e6 6. Nge2 Nf6 7. d4 cxd4 8. exd4 (8. Nxd4 d5 (8...
a6 9. O-O O-O 10. Qe2 Qc7 11. Bd2 b6 12. Nxc6 dxc6 13. Rad1 Bb7 14. e4 Nd7 15.
f4 a5 16. e5 Rfd8 17. Ne4 Nc5 18. Nf6+ Kh8 19. b3 Nd7 20. Ne4 Nc5 21. Nd6 Bf8
22. Bc3 Kg8 23. Rd2 {Werner,C (2330)-Mueller,R (2190) Porto 2014 1-0 (37)}) 9.
Nxc6 bxc6 10. Qa4 Bd7 11. O-O O-O 12. Qc2 Ng4 13. b3 Qa5 14. Bd2 dxc4 15. h3
Ne5 16. f4 Nd3 17. Ne4 c3 18. Bxc3 Bxc3 19. Qxc3 Qxc3 20. Nxc3 Nb4 21. Ne4 Rfd8
22. Rfc1 Rab8 {Chernin,A (2583)-Ftacnik,L (2579) Austria 2000 1-0 (42)}) 8...
d5 9. cxd5 exd5 $146 (9... Nxd5 10. Nxd5 exd5 11. Qb3 O-O 12. Be3 Qa5+ 13. Qc3
Be6 14. Qxa5 Nxa5 15. b3 Rfd8 16. h4 Nc6 17. Kd2 Rac8 18. h5 Nb4 19. a3 Nc2 20.
Ra2 Nxe3 21. fxe3 Rc6 22. hxg6 fxg6 23. b4 Bf8 24. Nf4 {Lesiege,A (2375)-Madl,
I (2410) Budapest 1992 0-1 (60)}) (9... Nxd5 10. O-O $11) 10. O-O $14 O-O 11.
h3 {Controls g4} b6 (11... Re8 12. Re1 $11) 12. Nf4 {[%cal Rc3d5,Rf4d5,Rg2d5,
Gd8d5,Gf6d5] The pressure on the isolated pawn grows} (12. Bg5 Qd6 $16) 12...
Be6 (12... Bb7 13. Be3 $11) 13. Nxe6 {White forks: d8+f8} fxe6 {White has the
pair of bishops} 14. Re1 Ne4 {[%cal Rc6d4,Rg7d4,Gd1d4] Exerts pressure on the
isolated pawn} (14... Qd7 15. Be3 $14) 15. Nxe4 $16 dxe4 16. Rxe4 Bxd4 17. Rxd4
(17. Bf4 $142 Qf6 18. Qb3 $16) 17... Nxd4 $4 (17... Qxd4 $142 {was a good
chance to save the game} 18. Qxd4 Nxd4 19. Bxa8 Rxa8 $11) 18. Bxa8 $18 Qxa8 (
18... Qf6 19. Be3 Nf5 $18) 19. Qxd4 Rd8 (19... Qd5 {cannot change destiny} 20.
Qc3 Qd1+ 21. Kg2 $18) 20. Qg4 Qd5 21. Bg5 (21. Bh6 {keeps an even firmer grip}
b5 $18) 21... h5 22. Qf4 Rf8 23. Qd2 Rf5 24. h4 Qa8 (24... Qxd2 {does not
improve anything} 25. Bxd2 Rc5 26. Rc1 $18) 25. Rc1 (25. Qd7 {and White can
already relax} Qf3 26. Be3 Rd5 27. Qxa7 b5 $18) 25... Rd5 (25... Rf7 {doesn't
improve anything} 26. Qe2 Qd5 27. Rc8+ Rf8 28. Qc2 $18) 26. Qc2 (26. Qe3 $142 {
makes it even easier for White} Qe8 27. Qe4 $18) 26... Rc5 (26... Qe8 {
desperation} 27. Qe4 Kf7 $18) 27. Qxg6+ Kf8 28. Rxc5 bxc5 (28... Qb7 {a
fruitless try to alter the course of the game} 29. Qf6+ Kg8 30. Qxe6+ Kg7 31.
Qh6+ Kg8 32. Qg6+ Kh8 33. Rc8+ Qxc8 34. Bf6#) 29. Qf6+ Kg8 30. Qxe6+ Kg7 31.
Qe7+ Kg8 (31... Kg6 {does not save the day} 32. Qf6+ Kh7 33. Qf7+ Kh8 34. Bf6#)
32. Bh6 (32. Bh6 Qh1+ 33. Kxh1 a6 34. Qg7#) 1-0

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.14"]
[Round "1.3"]
[White "Shishido, Kenta"]
[Black "Nishimori, Toshiyuki"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "983"]
[BlackElo "1551"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "88"]
[EventDate "2024.07.14"]

{[%mdl 8192] B20: Sicilian: Unusual White 2nd moves} 1. e4 c5 2. a3 d6 3. b4 b6
4. Nf3 Nf6 5. Nc3 g6 6. Bc4 Bg7 7. O-O $146 (7. bxc5 bxc5 8. e5 dxe5 9. Nxe5
Be6 10. Bxe6 fxe6 11. Qf3 Nbd7 12. Nxd7 Nxd7 13. O-O Rb8 14. Re1 Rb6 15. a4 Nf6
16. a5 Ra6 17. Qb7 Qd6 18. Nb5 Qc6 19. Qxa6 {1-0 (19) Chernyshov,K (2560)
-Tihonov,J (2500) Saratov 2006}) (7. bxc5 $5 Qc7 8. Qe2 bxc5 9. Nb5 $14) 7...
Bb7 8. e5 (8. Rb1 O-O (8... Nxe4 $143 9. Nxe4 Bxe4 10. Bxf7+ Kxf7 11. Ng5+ Kg8
12. Nxe4 $14) 9. d3 Nc6 $11) 8... dxe5 $11 9. Re1 {White threatens to win
material: Re1xe5} (9. Nxe5 O-O $11) 9... e4 $15 {Black threatens to win
material: e4xf3} 10. Ng5 {White threatens to win material: Ng5xe4. White forks:
e4+f7} O-O 11. Rb1 cxb4 12. axb4 Nbd7 (12... Qc7 $142 13. d3 exd3 14. Qxd3 Ng4
$17) 13. d4 $4 (13. Ngxe4 Ne5 14. Bb3 Rc8 $11) 13... exd3 $4 {releasing the
pressure on the opponent} (13... Qc7 $142 {Black missed this excellent chance}
14. Bxf7+ Rxf7 15. Nxf7 Qxc3 16. Nh6+ Kf8 $19) 14. Qxd3 $15 {Black has a
cramped position.} Nh5 15. Nce4 (15. Bb3 $142 $5 Ne5 16. Qe2 $15) 15... Ne5 $17
16. Qxd8 Raxd8 17. Bb3 h6 18. Nh3 (18. Nf3 Nxf3+ 19. gxf3 g5 $17) 18... Kh7 (
18... Bxe4 19. Bb2 Nf3+ 20. gxf3 Bxf3 21. Bxg7 Nxg7 22. Nf4 $19) 19. Nf4 (19.
f3 $142 $5 $17) 19... Bxe4 $19 20. Nxh5 gxh5 21. Bf4 $2 (21. Bb2 f5 22. f3 Bxf3
23. Bxe5 $19) 21... f5 22. f3 (22. Bxe5 {does not solve anything} Bxe5 23. f3
Bd4+ 24. Kh1 $19) 22... Nxf3+ (22... Ng6 $142 {it becomes clear that Black
will call all the shots} 23. fxe4 Nxf4 24. exf5 Rxf5 $19) 23. gxf3 $17 Bxf3 24.
Rxe7 Rfe8 25. Rxa7 (25. Rbe1 Bc6 $17) 25... Re4 $19 26. Bg3 (26. Bc1 $142 Rg4+
27. Kf2 $19) 26... h4 27. Be1 Kg6 28. c3 (28. h3 Bd4+ 29. Kf1 Be2+ 30. Kg2 $19)
28... Rde8 $4 {instead of simply winning the game} (28... Be5 $142 $19 {
and Black wins}) 29. Bf7+ $16 Kf6 30. Bxe8 Rxe8 31. Bxh4+ Kg6 32. Kf2 {White
threatens to win material: Kf2xf3} (32. Bf2 $142 $16) 32... Be4 $4 (32... Bg4
$14) 33. Re7 $4 {spoils everything} (33. Rg1+ $142 {secures the win} Kh5 34.
Raxg7 (34. Rgxg7 $6 Kxh4 35. Rg6 Rc8 $18) 34... Kxh4 35. R7g6 $18) 33... Rxe7
$11 {Black wins a piece} 34. Bxe7 $4 {throws away the game} (34. Rg1+ $142 {
would be a reprieve} Kf7 35. Rxg7+ Kxg7 36. Bxe7 $11) 34... Bxb1 $19 35. b5 (
35. c4 {doesn't change anything anymore} f4 36. Kf3 Kf5 $19) 35... Bxc3 36. Ke3
(36. Bd6 {doesn't get the bull off the ice} Bd4+ 37. Ke2 Kg5 $19) 36... Ba5 (
36... Be5 $142 {might be the shorter path} 37. Bd8 Bxh2 38. Bh4 $19) 37. Kd4 (
37. Bd6 {is not the saving move} Ba2 $19) 37... Ba2 (37... f4 $142 {and Black
has prevailed} 38. Bh4 Bb4 39. Ke5 $19) 38. Bd8 Be6 39. Bc7 Bd7 40. Kc4 h5 (
40... Kg5 $142 {seems even better} 41. Kd3 $19) 41. h4 (41. Bf4 $19 {the last
chance for counterplay}) 41... f4 42. Bxf4 Kf5 43. Bg5 Ke4 44. Bd8 (44. Kb3 {
is still a small chance} Bxb5 45. Bf6 $19) 44... Be6# 0-1

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.14"]
[Round "1.4"]
[White "Nakamura, Mitsuru"]
[Black "Yajima, Machiko"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1401"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "43"]
[EventDate "2024.07.14"]

{[%mdl 8192] C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} 1. e4 e5
2. Nf3 {White threatens to win material: Nf3xe5} Bd6 $146 (2... f6 3. d4 (3.
Nxe5 Qe7 4. Nf3 d5 5. d3 dxe4 6. dxe4 Qxe4+ 7. Be2 Nc6 8. O-O Bd7 9. Nc3 Qg6
10. Ng5 h5 11. Bd3 Bf5 12. Ne6 Bxd3 13. Nxc7+ Kf7 14. cxd3 Qg4 15. Qb3+ Kg6 16.
Qxb7 Rc8 17. Qxc6 Ne7 {Demchenko,A (2465)-Pravdiuk,V (2285) Krasnodar 2007 1-0}
) 3... d6 4. Bc4 Qe7 5. O-O Be6 6. Bxe6 Qxe6 7. Nc3 c6 8. d5 Qf7 9. a4 g6 10.
b3 c5 11. Nd2 Ne7 12. f4 exf4 13. Nc4 Nc8 14. Bxf4 Qd7 15. Qf3 a6 16. a5 Be7
17. Bh6 {Petrosian,D (2363)-Abedi,A (2221) Lahijan 2005 1-0}) (2... Bc5 3. Nxe5
d6 4. Nf3 Be6 5. d4 Bb6 6. Nc3 Nf6 7. Bd3 O-O 8. O-O c5 9. d5 Bg4 10. Bf4 Re8
11. h3 Bxf3 12. Qxf3 Nbd7 13. Bxd6 Rc8 14. Bb5 c4 15. Bxd7 Qxd7 16. e5 Bd4 17.
Rfe1 {Mihalichenko,V (2407)-Tikhiy,S (2427) Azov 2010 1-0}) (2... h6 3. Bc4 Qf6
4. O-O d6 5. h3 Be6 6. Bxe6 Qxe6 7. Nc3 Nf6 8. d4 Be7 9. d5 Qd7 10. Be3 b5 11.
Qd3 a6 12. Ne2 O-O 13. Ng3 {1/2-1/2 (13) Bujnoch,R (2233)-Svanda,P (2198)
Czechia 2009}) (2... Nc6 3. Bb5 $11) 3. Bc4 Nf6 {Black threatens to win
material: Nf6xe4} 4. O-O c6 $2 {Prevents intrusion on b5+d5} (4... Nc6 $5 $14 {
should be considered}) 5. Re1 (5. d4 Qc7 $16) 5... b5 (5... c5 6. d4 $1 {
forging ahead of the opponent} cxd4 7. Nxd4 $16) 6. Bb3 h6 (6... Bc7 7. d4 d6
8. a4 $16) 7. c3 (7. d4 Bc7 8. dxe5 Ng4 $18) 7... Na6 (7... Bc7 $5 $16) 8. d4
$18 exd4 $4 {the pressure is too much, Black crumbles} (8... Qc7 $142 $18) 9.
e5 O-O 10. cxd4 (10. exd6 $5 {keeps an even firmer grip} dxc3 11. Nxc3 Nc5 $18)
10... Bb4 11. Bd2 (11. exf6 $142 {ends the debate} Bxe1 12. fxg7 (12. Qxe1 $6
Qxf6 13. Be3 Bb7 $18) (12. Nxe1 $6 Qxf6 13. Nc3 Re8 $18) 12... Bxf2+ 13. Kxf2
Kxg7 14. a4 bxa4 15. Rxa4 $18) 11... Nd5 12. Nc3 d6 (12... Bb7 $5 $16) 13. Nxd5
$18 c5 $4 {Black falls apart} (13... cxd5 14. Bxb4 Nxb4 $18) 14. Nxb4 cxb4 15.
Bd5 (15. Qc2 $5 {might be the shorter path} d5 $18) 15... Rb8 16. Qb3 Qa5 (
16... Bb7 $18 {praying for a miracle}) 17. exd6 Bd7 18. Ne5 Rbd8 19. Nxf7 (19.
Bxf7+ Rxf7 20. Qxf7+ Kh8 21. Ng6+ Kh7 22. Re7 Rg8 23. Nf8+ Kh8 24. Bxh6 Qxa2
25. Bxg7+ Rxg7 26. Qxg7#) 19... Kh7 20. Qd3+ g6 (20... Bf5 {cannot change what
is in store for White} 21. Qxf5+ g6 22. Ng5+ hxg5 23. Re7+ Rf7 24. Qxf7+ Kh8
25. Qf6#) 21. Re7 Rde8 (21... Kg7 {doesn't get the cat off the tree} 22. Ne5+
Rf7 23. Qxg6+ Kh8 24. Nxf7#) 22. Rxd7 (22. Rxd7 Re1+ 23. Rxe1 Qc7 24. Ne5+ Qxd7
25. Qxg6+ Kh8 26. Qxh6+ Qh7 27. Ng6#) (22. Ng5+ Kh8 23. Rh7#) 1-0

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.14"]
[Round "2.1"]
[White "Sugimoto, Koichi"]
[Black "Nakamura, Mitsuru"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1817"]
[BlackElo "1401"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "64"]
[EventDate "2024.07.14"]

{[%mdl 8192] D00: 1 d4 d5: Unusual lines} 1. d4 Nf6 2. Nc3 d5 3. Bf4 Bf5 4. e3
e6 5. f3 (5. Bd3 Bg6 6. Bxg6 hxg6 7. h3 c5 8. Nf3 Nc6 9. O-O Rc8 10. Ne2 Qb6
11. Rc1 Be7 12. c3 Qa6 13. dxc5 Qxa2 14. b4 Ne4 15. Ra1 Qc4 16. Nd2 Nxd2 17.
Qxd2 g5 18. Bg3 g4 19. hxg4 Qxg4 {Sarsam,S (2407)-Al Modiahki,M (2523)
Casablanca 2002 1-0}) 5... a6 $146 {Consolidates b5} (5... Bb4 6. g4 Bg6 7. h4
h5 8. g5 Nfd7 9. Bd3 Bxd3 10. Qxd3 g6 11. Nge2 Nc6 12. a3 Bd6 13. Bxd6 cxd6 14.
Nf4 Ne7 15. e4 dxe4 16. fxe4 Nb6 17. O-O-O Qd7 18. d5 e5 19. Ng2 O-O 20. Rdf1 {
Colovic,D (2356)-Jovanovic,B (2304) Vrnjacka Banja 2007 1-0 (60)}) (5... Bd6 6.
Nge2 Nc6 7. Bxd6 (7. g4 Bg6 8. h4 h6 9. Qd2 e5 10. dxe5 Nxe5 11. Bxe5 Bxe5 12.
O-O-O c6 13. Nf4 Qa5 14. Nxg6 Bxc3 15. Qxc3 Qxc3 16. bxc3 fxg6 17. Bd3 Kf7 18.
c4 g5 19. h5 Rhd8 20. cxd5 cxd5 21. Bf5 Kg8 {Colovic,D (2369)-Savic,M (2477)
Paracin 2010 0-1 (74)}) 7... Qxd6 8. Ng3 Bg6 9. Bb5 O-O 10. f4 Nb4 11. Bd3 c5
12. Bxg6 fxg6 13. O-O Nc6 14. Nb5 Qe7 15. c3 a6 16. Na3 h5 17. Nc2 cxd4 18.
exd4 h4 19. Nh1 h3 20. g3 {Colovic,D (2375)-Petkov,V (2481) Kragujevac 2015
0-1 (36)}) (5... h6 6. g4 Bh7 7. h4 Bd6 8. Qd2 a6 9. O-O-O b5 10. Bd3 Bxd3 11.
Qxd3 Nc6 12. Nge2 Qe7 13. Kb1 Nb4 14. Qd2 c5 15. g5 Nd7 16. gxh6 gxh6 17. Bxd6
Qxd6 18. dxc5 Qxc5 19. e4 Nb6 20. a3 {Colovic,D (2380)-Zivkovic,M (2192)
Vrnjacka Banja 2014 1-0 (32)}) 6. g4 Bg6 7. h4 h5 8. g5 {White threatens to
win material: g5xf6} Nfd7 9. Bd3 Bd6 $2 (9... Bxd3 $142 $5 {is interesting} 10.
Qxd3 Nb6 $11) 10. Bxg6 $16 fxg6 11. Nge2 (11. Bxd6 cxd6 12. Qd3 Qe7 13. Qxg6+
Qf7 14. Qxf7+ Kxf7 $16) 11... Qe7 12. Qd3 Qf7 13. O-O-O (13. Bxd6 $5 cxd6 14.
Nf4 $16) 13... Nc6 $14 14. Bxd6 cxd6 {Black has new doubled pawns: d5+d6} 15.
Nf4 {White threatens to win material: Nf4xg6} Ne7 16. Nce2 e5 17. dxe5 dxe5 (
17... Nxe5 $142 $5 18. Qb3 O-O $16) 18. Nxd5 $18 Nxd5 19. Qxd5 Qxd5 20. Rxd5
O-O-O 21. Rhd1 Rhe8 22. Rd6 Nf8 23. Nc3 Rxd6 24. Rxd6 Kc7 25. Rd5 Nd7 26. Kd1
Kc6 27. Ke2 Nb6 28. Rd1 Nc4 (28... Re7 29. Ne4 Rd7 30. Rxd7 Nxd7 31. c4 $18)
29. b3 Nd6 30. Nd5 Nf5 31. Nb4+ (31. e4 Nd4+ 32. Kf2 a5 $18) 31... Kc7 (31...
Kc5 $142 $5 32. c3 e4 $14) 32. Rh1 $4 {ruins a very nice position} (32. e4 $142
{White clearly has the better chances} Nd4+ 33. Ke3 $18) 32... Ng3+ $19 (32...
Ng3+ 33. Kf2 Nxh1+ 34. Kg2 e4 $19) 0-1

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.14"]
[Round "2.2"]
[White "Nishimori, Toshiyuki"]
[Black "Yoshii, Yukihiko"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "1551"]
[BlackElo "1596"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "85"]
[EventDate "2024.07.14"]

{[%mdl 8256] 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. Ba4 h6 9. Nf3 {
White threatens to win material: Nf3xe5} Qc7 $146 (9... e4 10. Qe2 (10. Ne5 Qd4
11. Bxc6+ Nxc6 12. Nxc6 Qc5 13. Nxa7 Bg4 14. f3 exf3 15. gxf3 Be6 16. Nc3 Qxa7
17. Qe2 Be7 18. Qb5+ Nd7 19. Qc6 O-O 20. Nd5 Bh4+ 21. Kd1 Ne5 22. Qb5 Nxf3 23.
Ne3 Rad8 24. d3 Bg5 {Phanikanth,J (2161)-Trenner,R (2261) Olomouc 2002 0-1})
10... Be7 (10... Be6 11. Ne5 Qd4 12. Bxc6+ Nxc6 13. Qb5 Bc5 14. Qxc6+ Ke7 15.
Qb7+ Kd6 16. O-O Kxe5 17. d3 Ng4 18. Nc3 Qb4 19. d4+ Qxd4 20. Bf4+ Kf5 21. Be3
Qb4 22. Qc6 Nxe3 23. fxe3+ Kg6 24. Rxf7 Qc4 25. Rc7 {Orujov,E (2185)-Davidov,S
(2326) Baku 2007 0-1 (39)}) 11. Ne5 Qc7 12. d4 exd3 13. Nxd3 O-O 14. Bf4 Bd6
15. Bxd6 Qxd6 16. O-O Re8 17. Qf3 Bg4 18. Qg3 Qd4 19. Bb3 Be2 20. Rc1 Nxb3 21.
axb3 Nh5 22. Qc7 Bxd3 23. cxd3 Nf4 24. Nc3 {Marie,M (2168)-Lalic,B (2492)
Nantes 2013 0-1}) (9... e4 $5 10. Qe2 Bc5 $15) 10. O-O {White has a cramped
position. White's piece can't move: c1} (10. Qe2 Bd6 11. b4 Nb7 $11) 10... Bd6
(10... e4 11. Re1 Be7 12. b4 $11) 11. d3 {Consolidates c4+e4} O-O 12. Nc3 Bg4 (
12... Nb7 13. Be3 $14) 13. Ne4 Be7 (13... Nxe4 14. dxe4 Nb7 15. Bb3 $11) 14. a3
(14. Qe2 Nd5 $16) 14... Rad8 15. Re1 (15. Qe2 Nxe4 16. dxe4 Nb7 $14) 15... c5 (
15... Nxe4 $5 {must be considered} 16. Rxe4 f5 $14) 16. h3 Be6 {[%cal Yc5c4]
Black intends c4} (16... Bd7 17. Bxd7 Rxd7 18. b4 $16) 17. Qe2 c4 18. Bd2 cxd3
19. cxd3 Nxe4 20. Qxe4 f6 $2 (20... Qb6 $142 $18) 21. Rac1 Qb6 22. b4 Nb3 23.
Be3 Qa6 24. Bxb3 $4 {gives the opponent new chances} (24. Rc6 $142 {nails it
down} Qxa4 25. Rxe6 $18) 24... Bxb3 $16 {Black has the pair of bishops} 25. Rc3
{White threatens to win material: Rc3xb3} Bd5 (25... Qxa3 $4 {Black will not
be able to digest the pawn} 26. Rb1 Qxb4 27. Rbxb3 Qxe4 28. dxe4 $18) 26. Qg6
Bf7 {Black threatens to win material: Bf7xg6} 27. Qg3 Rxd3 $2 (27... g5 $142
$16) 28. Bxh6 $1 $18 {Mate threat} g6 (28... Z0 $140 29. Qxg7# {Mate threat})
29. Bxf8 $1 {the decision} Bxf8 (29... Bxf8 30. Re3 {Combination}) (29... Kxf8
30. Rxd3 Qxd3 31. Qh4 {Combination}) 30. Rxd3 Qxd3 31. Re3 $4 {a transit from
better to worse} (31. Nh2 $142 $5 {seems even better} Qxg3 32. fxg3 $18) 31...
Qd1+ (31... Qb1+ $142 32. Kh2 Bh6 33. Nxe5 fxe5 34. Rxe5 Qd1 $16) 32. Kh2 $4 {
White lets it slip away} (32. Ne1 Bh6 33. Re4 $18) 32... Bd6 $4 {weakening the
position} (32... e4 33. Ne5 Bd6 34. f4 exf3 35. Rd3 Qxd3 36. Nxd3 Bxg3+ 37.
Kxg3 fxg2 38. Kxg2 $11) 33. Qg4 $4 {ruins a clearly superior position} (33. Nd2
$142 $1 {White has the better game} Bxb4 34. axb4 Qxd2 35. Rc3 $18) 33... e4+
$11 34. g3 {Secures f4} exf3 (34... f5 35. Qg5 exf3 36. h4 $11) 35. Qc8+ (35.
Qxf3 Qd4 $11) 35... Kg7 $11 36. Qa6 {White threatens to win material: Qa6xa7}
Qd4 37. Rxf3 Bd5 $4 {stumbles just before the finish line} (37... Bc4 $142 38.
Qb7+ Kh6 $11) 38. Re3 (38. Qxd6 $142 {and White has it in the bag} Qe4 39.
Qxf6+ Kh7 40. Kg2 $18) 38... Be5 $4 {gives the opponent counterplay} (38... Qa1
39. f3 Bxg3+ 40. Kg2 Be5 41. Qxa7+ Kh6 $17) 39. Qe2 g5 40. Qd3 {Black king
safety dropped} Qb2 {Black has a mate threat} 41. Re2 Qd4 $4 (41... Qb3 $142 {
had to be tried to avoid defeat} 42. Qxb3 Bxb3 $11) 42. Qxd4 $18 Bxd4 43. Rd2 (
43. Rd2 Bxf2 44. Rxd5 $18) 1-0

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.14"]
[Round "2.3"]
[White "Yajima, Machiko"]
[Black "kuramoto, koutarou"]
[Result "0-1"]
[ECO "A47"]
[BlackElo "1382"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "80"]
[EventDate "2024.07.14"]

{[%mdl 8192] A47: 1 d4 Nf6 2 Nf3 b6: Torre, London and Colle Systems} 1. d4 Nf6
2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. O-O c5 6. Bg5 Be7 7. c3 O-O 8. Nbd2 d5 9. Nb3
$146 (9. Bxf6 Bxf6 10. Re1 cxd4 11. cxd4 Nc6 12. e3 Qd7 13. Qb1 a5 14. Bf1 Rfc8
15. a3 h6 16. Rc1 Qd6 17. Bb5 Na7 18. Bd3 Nc6 19. Bb5 Na7 20. Bd3 {1/2-1/2 (20)
Korsus,B (2243)-Meyer,H (2256) Germany 2003}) (9. a3 Nbd7 10. Re1 h6 11. Bxf6
Nxf6 12. Rc1 Rc8 13. e3 Re8 14. Ne5 Bd6 {1/2-1/2 (14) Speelman,J (2550)-Short,
N (2430) London 1982}) (9. Ne5 Nbd7 10. Ndf3 (10. f4 Nxe5 11. fxe5 Ng4 12. Bf4
Bg5 13. Rf3 Bxf4 14. gxf4 f5 15. Rg3 Rc8 16. h3 Nh6 17. Nf3 Kh8 18. Qd2 Bc6 19.
Rf1 Be8 20. Rf2 Bh5 21. Ng5 Qe7 22. Bf1 Nf7 23. Rfg2 Nxg5 24. Rxg5 g6 {Lein,A 
(2465)-Whitehead,J (2325) Greenville 1983 1/2-1/2 (57)}) 10... Nxe5 11. Nxe5
Nd7 12. Nxd7 Qxd7 13. Bxe7 Qxe7 14. Qa4 Rfc8 15. Rfd1 Rc7 16. Rd2 cxd4 17. Qxd4
Rc4 18. Qe5 Qc7 19. Qh5 Rc5 20. Rad1 Qe7 21. Qe5 Rc7 22. e4 dxe4 23. Bxe4 Bxe4
{D'Amore,C (2493)-Antoli Royo,J (2429) Gallipoli 2014 1/2-1/2 (81)}) 9... c4 {
Black wins space} 10. Nbd2 Nc6 11. Ne5 Qc7 12. Nxc6 Qxc6 13. h3 {Controls g4} (
13. e4 h6 14. exd5 exd5 $11) 13... h6 14. Bf4 b5 15. b4 (15. Nf3 Nh5 $11) 15...
cxb3 (15... a5 16. a3 $15) 16. Nxb3 (16. Qxb3 Rfc8 17. Rfc1 g5 $11) 16... Ne4 {
[%cal Yd6c4,Ye4d6,Yf6e4] The knight intends Nf6-e4-d6-c4. Black threatens to
win material: Ne4xc3} (16... a5 $5 $15 {has some apparent merit}) 17. Na5 $11 {
White threatens to win material: Na5xc6} Qa6 18. Nxb7 Qxb7 {White has the pair
of bishops} 19. Qc2 (19. Bxe4 dxe4 20. a4 $11) 19... Nd6 (19... Rfc8 20. Bxe4
dxe4 21. Qb3 $11) 20. Be5 (20. Bxd6 $5 {is noteworthy} Bxd6 21. e4 $14) 20...
Nc4 {[%cal Yb5b4] Black prepares the advance b4. Praise the knight!} 21. Bf4
Rfc8 (21... Bd6 $5 $15) 22. e4 $11 Qd7 23. e5 {This push gains space} (23. exd5
$5 {might be a viable alternative} exd5 24. Rae1 $11) 23... a5 24. a4 $2 (24.
Qe2 $142 $5 $15 {is the best option White has}) 24... b4 $19 25. Rfb1 (25. Qb3
bxc3 26. Qxc3 Nxe5 $19) 25... Na3 26. Rxa3 bxa3 27. Qa2 $4 {a blunder in a bad
position} (27. Bf1 $142 $19) 27... Rxc3 28. Rb3 (28. Qd2 {the only chance to
get some counterplay} Rac8 29. h4 $19) 28... Qc7 29. Rxc3 (29. Bf1 {hoping
against hope} Rxb3 30. Qxb3 $19) 29... Qxc3 30. Be3 Qb2 31. Qxb2 axb2 32. h4
b1=Q+ 33. Kh2 g5 34. h5 Rb8 35. g4 (35. Bd2 {does not win a prize} Qd1 36. Be1
Qxe1 37. f3 Qd2 38. f4 Rb2 39. Kh3 Qxg2+ 40. Kg4 gxf4 41. Kxf4 Qe4#) 35... Qd3
36. Kg3 (36. Bh1 {cannot undo what has already been done} Qd1 37. Bg2 Qxg4 38.
Bxg5 Bxg5 39. f3 Qf4+ 40. Kg1 Rb1+ 41. Kf2 Qxd4+ 42. Kg3 Qh4#) 36... Bb4 37.
Kh2 (37. Bf3 {is not much help} Bc3 38. Kg2 Bxd4 39. Bc1 Qc2 40. Kh3 Qxf2 41.
Be3 Qxf3+ 42. Kh2 Rb1 43. Bc1 Bxe5+ 44. Bf4 Bxf4#) 37... Bc3 38. Bxg5 (38. Kg3
{hardly improves anything} Bxd4 39. Bf1 Bxe5+ 40. Kg2 Qe4+ 41. f3 Qxe3 42. Bb5
Bf4 43. Kf1 Bg3 44. Kg2 Qf2+ 45. Kh3 Qh2#) 38... hxg5 39. f3 (39. Bh3 {doesn't
do any good} Bxd4 40. Kg2 Rb3 41. Kg1 Qxh3 42. h6 Rb1#) 39... Rb2 40. Kg3 (40.
Kg1 {is no salvation} Qe2 41. Bh3 Bxd4+ 42. Kh1 Qh2#) 40... Be1+ (40... Be1+
41. Kh3 Qc2 42. f4 Qxg2#) (40... Qc2 41. f4 Qxg2#) 0-1

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.14"]
[Round "2.4"]
[White "Ito, Katsuhide"]
[Black "Shishido, Kenta"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1156"]
[BlackElo "983"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "62"]
[EventDate "2024.07.14"]

{[%mdl 8192] B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6
Be3 e5} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e5 7. Nb3
$146 (7. Nf3 Be7 8. O-O O-O 9. Re1 b5 10. Bb3 Bb7 11. Nd5 Nxd5 12. Bxd5 Nc6 13.
Be3 Rc8 14. a4 b4 15. a5 Qc7 16. Re2 h6 17. Qd2 Bf6 18. Bb6 Qd7 19. Rd1 Nd4 20.
Nxd4 Bxd5 21. exd5 exd4 {Groetz,H (2299)-Weissenbeck,M (2254) Austria 2005 0-1
(62)}) (7. Nde2 Be6 8. Bb3 Be7 9. f3 Nc6 10. Nd5 Rc8 11. Be3 Bxd5 12. exd5 Na5
13. O-O O-O 14. Ng3 Nd7 15. Nf5 g6 16. Nxe7+ Qxe7 17. Qd2 Qd8 18. Qb4 Qc7 19.
Rf2 f5 20. f4 Rfe8 21. fxe5 Nxb3 {Sigfusson,S (2336)-Adly,A (2640) Reykjavik
2011 0-1 (67)}) (7. Nf5 Be6 (7... Bxf5 8. exf5 Be7 9. Bg5 Nbd7 10. Qf3 O-O 11.
Bxf6 Bxf6 12. O-O-O Nc5 13. Bd5 Qc7 14. h4 Rac8 15. Be4 Qd8 16. Kb1 b5 17. g4
Bxh4 18. f6 Nxe4 19. Nxe4 d5 20. Qh3 Qc7 21. c3 dxe4 22. Qxh4 {Vavra,P (2363)
-Paganik,P (2253) Teplice 2011 1-0}) 8. Bb3 g6 9. Ne3 Nbd7 10. Ned5 Bg7 11. O-O
O-O 12. Bg5 h6 13. Nxf6+ Nxf6 14. Bxf6 Bxf6 15. Qd3 Qd7 16. Rad1 Rad8 17. Nd5
Bg7 18. c3 Kh8 19. Ne3 f5 20. Bxe6 Qxe6 21. Qd5 Qe7 {Njili,K (2329)-Adly,A 
(2605) Dubai 2011 1/2-1/2 (70)}) 7... Bg4 {Black threatens to win material:
Bg4xd1} 8. f3 {White threatens to win material: f3xg4} Bh5 (8... Be6 9. Bd5 Nc6
10. Be3 $14) 9. O-O Nbd7 10. Ne2 (10. Be3 $5 $16) 10... Nb6 $11 {Black
threatens to win material: Nb6xc4} 11. Bd3 d5 12. Bg5 (12. Ng3 dxe4 13. Nxe4
Qc7 $11) 12... h6 (12... dxe4 13. fxe4 Na4 14. Rb1 $11) 13. Bxf6 $14 {White
forks: e5+d8} Qxf6 (13... gxf6 $5 {is worthy of consideration} 14. Qe1 Bg6 $14)
14. Ng3 $16 Bg6 15. Nf5 $4 {White is ruining his position} (15. exd5 $142 Nxd5
16. Bxg6 $18) 15... Na4 {Black threatens to win material: Na4xb2} 16. Rb1 Qb6+
(16... Bxf5 $5 {deserves consideration} 17. exf5 Be7 $15) 17. Kh1 $11 Bxf5 18.
exf5 Nc5 19. Nxc5 Bxc5 20. Qe2 f6 (20... Be3 21. a4 $11) 21. b3 (21. c4 dxc4
22. Bxc4 O-O-O $11) 21... O-O (21... Bb4 22. c4 O-O-O 23. Rfd1 $11) 22. c4 {
White threatens to win material: c4xd5} Rad8 (22... dxc4 $5 {is an interesting
idea} 23. bxc4 Qc7 $11) 23. cxd5 $16 Kh8 (23... Rxd5 $2 {leads to nothing} 24.
Bc4 Rfd8 25. Rfd1 $18) 24. Qe4 (24. Be4 $5 $16) 24... Qd6 $14 {Black threatens
to win material: Qd6xd5} 25. Bc4 (25. b4 Bd4 $14) 25... b5 $11 26. b4 {White
threatens to win material: b4xc5} Bd4 {A classical outpost} (26... bxc4 27.
bxc5 Qxd5 28. Rfc1 Qxe4 29. fxe4 $15) 27. Bb3 Qxb4 28. Rfc1 a5 29. Rc6 (29. Qe2
Rc8 30. Rc6 Rxc6 31. dxc6 Qc5 $11) 29... a4 {Black gains space} 30. Bc2 Qa3 {
Black threatens to win material: Qa3xa2} 31. Rxb5 $4 (31. Bd3 $142 $11 {
this is the best way to fight back}) 31... Qc1+ (31... Qc1+ 32. Bd1 Qxd1+ 33.
Qe1 Qxe1#) 0-1

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.14"]
[Round "3.1"]
[White "Nakamura, Mitsuru"]
[Black "Nishimori, Toshiyuki"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "1401"]
[BlackElo "1551"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "116"]
[EventDate "2024.07.14"]

{[%mdl 8192] E91: King's Indian: Classical: 6 Be2, unusual replies including 6.
..c5 and 6...Bg4} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Re8
7. O-O {Black has a cramped position} Bg4 $146 (7... c6 8. h3 h6 9. Bf4 g5 10.
Bh2 Nbd7 11. e5 dxe5 12. dxe5 Nh7 13. Qc2 Nhf8 14. Rad1 Ne6 15. Qe4 Qc7 16. Bd3
Ndf8 17. Bb1 Qb6 18. b3 Nc5 19. Qe3 Nce6 20. Qe4 Nc5 21. Qe2 Be6 22. h4 {
Efimov,I (2494)-Everet,A (2253) Salsomaggiore Terme 1999 1/2-1/2 (76)}) (7...
Nc6 8. d5 Nb8 (8... Nb4 9. a3 Na6 10. Be3 Nc5 11. Nd2 a5 12. Bxc5 dxc5 13. e5
Nd7 14. f4 Nf8 15. Nde4 b6 16. Kh1 f5 17. Ng3 Bb7 18. Bf3 e6 19. Qc2 Qe7 20.
Rad1 Rad8 21. Nb5 exd5 22. cxd5 Ba6 23. a4 {Khalifman,A (2621)-Nikitinyh,B 
(2185) St Petersburg 2012 1-0 (34)}) 9. Be3 e6 10. dxe6 Bxe6 11. Nd4 Bd7 12. f3
a5 13. Qd2 Na6 14. Rfd1 b6 15. Bg5 Nc5 16. Kh1 Re5 17. Be3 Qf8 18. Bf1 Rae8 19.
Rab1 h5 20. b3 h4 21. a3 h3 22. g3 {Malaniuk,V (2529)-Pessi,E (2316) Galatzi
2007 1-0 (36)}) (7... e5 8. d5 Nbd7 9. Bg5 Nc5 10. b4 Ncd7 11. a4 a5 12. b5 Nc5
13. Nd2 h6 14. Be3 Nh7 15. Rc1 Bd7 16. f3 f5 17. Nb3 b6 18. Nxc5 dxc5 19. Bd3
Nf6 20. Qc2 fxe4 21. Nxe4 Nxe4 22. Bxe4 {Martic,Z (2359)-Savic,M (2211) Borovo
2009 1-0 (35)}) 8. h3 Bxf3 9. Bxf3 e5 10. d5 Nbd7 11. Be3 a5 12. Qd2 b6 13. Nb5
Nc5 14. Bxc5 bxc5 {Opposite coloured bishops appeared} 15. Rfe1 Re7 16. Rad1
Qf8 17. a3 (17. Qg5 h5 $16) 17... Bh6 $14 {Black threatens to win material:
Bh6xd2} 18. Qc3 Nh5 $2 (18... a4 $142 $14 {would allow Black to play on}) 19.
Bxh5 $18 gxh5 20. Rd3 (20. Qf3 $5 $18) 20... Bf4 21. b4 (21. g3 $5 Bh6 22. Rf3
$16) 21... axb4 $14 22. axb4 Ra2 $2 (22... cxb4 $142 $5 {and Black is still in
the game} 23. Qxb4 f5 $14) 23. bxc5 $16 Qh6 $2 (23... dxc5 $142 $5 24. g3 Bh6
$18) 24. cxd6 $18 cxd6 25. Rg3+ $4 {letting the wind out of his own sails} (25.
c5 $142 {the advantage is on the side of White} dxc5 26. Qxc5 $18) 25... Bxg3
$11 26. Qxg3+ Kf8 27. Rf1 Rc2 (27... Rb7 $11) 28. Na3 $4 {White threatens to
win material: Na3xc2. with this move White loses his initiative} (28. Qa3 $5
Rd7 29. Qa8+ Ke7 30. Na7 Rxa7 31. Qxa7+ Kf8 32. Qb8+ Kg7 33. Qb3 $16) 28... Re2
{Black threatens to win material: Re2xe4} (28... Rc1 $5 29. Qb3 Rxf1+ 30. Kxf1
Qc1+ 31. Ke2 Kg7 $17) 29. Qf3 $11 {White threatens to win material: Qf3xe2} Ra2
(29... Rb2 $142 $5 $11 {should be examined more closely}) 30. Qb3 $16 Re2 {
Black threatens to win material: Re2xe4} 31. Nc2 (31. Qb6 $142 Kg7 32. Qd8 $16)
31... Rxe4 $15 32. Ne3 Qf4 {White king safety dropped} (32... Re8 $142 $5 $15 {
would keep Black alive}) 33. Qb8+ $14 {White forks: d6} Re8 $4 (33... Kg7 $142
$14 {was much better}) 34. Qxd6+ $18 Kg7 35. Qd7 (35. c5 $5 Rg8 36. c6 Kh8 $18)
35... Ra8 $16 36. Nf5+ (36. d6 $142 Rxc4 37. Nxc4 Qxc4 38. Qb7 $16) 36... Kg8
$2 (36... Kg6 37. Qc6+ Kxf5 38. Qxa8 Rxc4 39. Qg8 $16) 37. c5 $4 {White loses
the upper hand} (37. Qc6 $142 Qxf5 38. Qxa8+ Kg7 39. c5 $18) 37... Re2 $4 (
37... Rea4 38. g3 Qf3 39. c6 $14) 38. Qb7 {White has a mate threat} (38. Qc6 {
makes it even easier for White} Qxf5 39. Qxa8+ Kg7 $18) 38... Rd8 $4 (38...
Rea2 $142 {saving the game} 39. Ne3 R2a7 $11) 39. Ng3 (39. Qe7 $142 {and White
takes home the point} Qxf5 40. Qxd8+ Kg7 41. c6 $18) 39... Rc2 40. Qc6 {
[%cal Yd5d6] White plans d6} (40. Qe7 $142 $5 {and White can already relax} Ra8
41. Nxh5 Qh6 $18) 40... e4 $4 {there were better ways to keep up the pressure}
(40... h4 $142 41. Nh5 Qg5 42. Nf6+ Kg7 43. Ne8+ Kg8 $11) 41. d6 $4 {throwing
away the advantage} (41. Nxh5 $142 {a shame that White overlooked this
excellent chance} Qf5 42. g4 $18) 41... e3 $17 {Black threatens to win
material: e3xf2} 42. Nxh5 $4 {strolling merrily down the path to disaster} (42.
Qe4 $142 exf2+ 43. Kh2 Qxe4 44. Nxe4 $17) 42... exf2+ $19 43. Kh1 Qc4 44. Nf6+
(44. Rxf2 {there is nothing better in the position} Rxf2 45. Ng3 $19) 44... Kh8
45. Rxf2 (45. Ng4 {does not save the day} Qxf1+ 46. Kh2 Rc3 47. Qe8+ Rxe8 48.
Nxf2 Qxf2 49. d7 Rg8 50. d8=Q Qxg2#) 45... Rxf2 46. Ng4 (46. Nh5 {does not
solve anything} Rf1+ 47. Kh2 Qd4 48. Nf6 Qg1+ 49. Kg3 Rxf6 50. Qa4 Rg8+ 51. Qg4
Qf2+ 52. Kh2 Rxg4 53. hxg4 Rh6#) 46... Qf1+ (46... Qc1+ 47. Kh2 Qf4+ 48. Kg1
Rf1#) 47. Kh2 $19 Rxg2+ (47... Re2 $142 {and Black has reached his goal} 48.
Kg3 f5 $19) 48. Qxg2 $16 Qf4+ 49. Kh1 $4 {not a good decision, because now the
opponent is right back in the game} (49. Qg3 Qd2+ 50. Qf2 Qxf2+ 51. Nxf2 f5 $18
) 49... Qc1+ $4 {Black forks: c5. allows the opponent back into the game} (
49... Rb8 $142 50. Qf2 Qc1+ 51. Qg1 Rb1 52. Qxc1 Rxc1+ 53. Kg2 Rxc5 $19) 50.
Qg1 $11 Qc3 $2 (50... Qxg1+ 51. Kxg1 Kg7 $16) 51. Nh6 $4 {White has let it
slip away} (51. Qe3 Qa1+ 52. Kh2 $18) 51... Qf3+ (51... Rf8 $142 $5 52. Qf1 f6
$17) 52. Qg2 $11 {White threatens to win material: Qg2xf3} Qd1+ 53. Kh2 {
White has a mate threat} Qh5 $4 (53... Rf8 $142 {is a viable option} 54. Ng4 f6
$11) 54. Ng4 (54. Qb2+ Qe5+ 55. Qxe5+ f6 56. Qxf6#) 54... Qxc5 $4 {an
oversight. But Black was lost anyway..} (54... Qg6 55. Qb2+ Kg8 56. Nf6+ Kg7
$18) 55. Nh6 (55. Qb2+ Qc3 56. Qxc3+ Kg8 57. Nh6+ Kf8 58. Qh8#) 55... Qxd6+ 56.
Qg3 (56. Kh1 {is no salvation} Qxh6 57. Qf3 Qc1+ 58. Kg2 Rd2+ 59. Qf2 Qc6+ 60.
Kg1 Qg6+ 61. Kf1 Rd1+ 62. Qe1 Qf5+ 63. Ke2 Qh5+ 64. Kf2 Qh4+ 65. Ke3 Rxe1+ 66.
Kd3 Qf4 67. Kc2 Qe3 68. h4 Re2+ 69. Kd1 Qd2#) 56... Qxh6 57. h4 (57. Qc3+ {
doesn't change the outcome of the game} f6 58. Qf3 Qd2+ 59. Kg1 Qe1+ 60. Kh2
Rd2+ 61. Qg2 Qe5+ 62. Kg1 Qe3+ 63. Kh1 Rd1+ 64. Kh2 Qe5+ 65. Qg3 Rd2+ 66. Kh1
Qxg3 67. h4 Qg2#) 57... Qd2+ (57... Rd2+ 58. Kh3 Qe6+ 59. Qg4 Rd3+ 60. Kg2
Qxg4+ 61. Kf1 Rd2 62. h5 Qd1#) 58. Kg1 (58. Qg2 {does not help much} Qf4+ 59.
Qg3 Rd2+ 60. Kh3 Qf5+ 61. Qg4 Qf1+ 62. Kg3 Qf2+ 63. Kh3 Qh2#) 58... Rg8 (58...
Rg8 59. Qg5 f6 60. Qxg8+ Kxg8 61. Kf1 f5 62. h5 f4 63. Kg1 f3 64. Kf1 h6 65.
Kg1 Qg2#) 0-1

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.14"]
[Round "3.2"]
[White "Shishido, Kenta"]
[Black "Sugimoto, Koichi"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "983"]
[BlackElo "1817"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "64"]
[EventDate "2024.07.14"]

{[%mdl 8192] B20: Sicilian: Unusual White 2nd moves} 1. e4 c5 2. a3 g6 3. b4
Bg7 4. Ra2 (4. Nc3 d6 5. g3 (5. Bc4 Nf6 6. Rb1 cxb4 7. axb4 O-O 8. d3 Nxe4 9.
Nxe4 d5 10. Bxd5 Qxd5 11. Ne2 f5 12. c4 Qd8 13. N4c3 e5 14. O-O Be6 15. Re1 Bf7
16. Ba3 Re8 17. Qc2 Nd7 18. Nb5 Bf8 19. Bc1 a6 {Ayza Leon,D (2202)-Boix Moreno,
D (2242) Barcelona 2015 0-1 (38)}) 5... Nf6 6. Bg2 Nc6 7. Rb1 O-O 8. Nge2 Rb8
9. bxc5 dxc5 10. O-O e5 11. d3 Be6 12. h3 b6 13. f4 Nd4 14. Kh2 exf4 15. Bxf4
Rc8 16. g4 Nxe2 17. Nxe2 Nd7 18. Ng3 Ne5 {Perunovic,M (2696)-Arsovic,G (2491)
Belgrade 2014 1/2-1/2 (54)}) 4... cxb4 $146 (4... d5 5. Bb5+ Nc6 6. f3 Nf6 7.
e5 Nd7 8. f4 cxb4 9. Nf3 Qb6 10. Qe2 a6 11. Bxc6 bxc6 12. d4 c5 13. dxc5 Nxc5
14. Be3 Bg4 15. Nbd2 Qa5 16. O-O O-O 17. Qf2 Rac8 18. Qh4 Bxf3 19. Rxf3 {
Tate,E (2378)-Chow,A (2198) Chicago 2008 1-0}) 5. axb4 Qb6 (5... d5 6. exd5
Qxd5 7. Ra3 $17) 6. c3 {Covers d4} (6. Nc3 $5 {is worth consideration} Nf6 7.
e5 $11) 6... Nf6 $15 7. d3 {Prevents intrusion on e4} d6 8. Nd2 Ng4 (8... O-O
$5 $15 {should not be overlooked}) 9. d4 $11 Be6 {Black threatens to win
material: Be6xa2} 10. Nb3 (10. Ra3 O-O $11) 10... O-O 11. Nf3 {White has an
active position} Rc8 {Black threatens to win material: Rc8xc3} (11... Nc6 12.
Be2 $11) 12. Bb2 Nc6 13. Be2 Nxb4 (13... Nf6 $142 $5 {is worth looking at} 14.
Nfd2 Bh6 $11) 14. cxb4 $16 Qxb4+ 15. Qd2 $4 {throws away a nice position} (15.
Nfd2 $142 Nf6 16. d5 $16) 15... Qxb3 $19 16. Ra3 Qc2 17. Qxc2 (17. Bc3 {
a last effort to resist the inevitable} Qb1+ 18. Qd1 Qxe4 19. h3 $19) 17...
Rxc2 18. Bc3 (18. h3 {doesn't get the bull off the ice} Rxb2 19. hxg4 Bxg4 $19)
18... Rc1+ 19. Bd1 Rxd1+ 20. Kxd1 Nxf2+ 21. Ke2 Nxh1 22. Ra1 (22. Kf1 {doesn't
do any good} Rc8 23. Kg1 b5 24. Kxh1 b4 25. Bxb4 Rc1+ 26. Ne1 Bxd4 $19) 22...
Rc8 23. Bb2 (23. Bd2 {is the last straw} Bc4+ 24. Ke1 $19) 23... Rc2+ 24. Ke3
Nf2 25. Rc1 Bh6+ 26. Ng5 Bxg5+ 27. Kf3 Bxc1 (27... Bg4+ 28. Kg3 h5 29. h3 Nxe4+
30. Kh2 Bf4+ 31. Kg1 Bxc1 32. Ba3 Be3+ 33. Kh1 Bf3 34. Kh2 Rxg2+ 35. Kh1 Ng3#)
28. Bxc1 $19 Rxc1 29. Kxf2 a5 30. d5 Bd7 31. Ke2 (31. e5 {does not help much}
a4 32. e6 fxe6 33. Kf3 a3 34. g4 a2 35. g5 Rc3+ 36. Kf2 a1=Q 37. dxe6 Bb5 38.
Kg2 Qf1#) 31... a4 32. Kd2 (32. e5 {doesn't change the outcome of the game} a3
33. Kd2 Rc5 34. exd6 exd6 35. h3 a2 36. g3 a1=Q 37. Ke3 Qe1+ 38. Kf4 Qf2+ 39.
Kg5 Kg7 40. g4 Rxd5#) 32... Rc5 (32... Rc5 33. Ke3 a3 34. h4 a2 35. e5 a1=Q 36.
Kf3 Qf1+ 37. Ke3 Qe1+ 38. Kf4 Qf2+ 39. Kg5 Qd2#) 0-1

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.14"]
[Round "3.3"]
[White "Yoshii, Yukihiko"]
[Black "kuramoto, koutarou"]
[Result "1/2-1/2"]
[ECO "A18"]
[WhiteElo "1596"]
[BlackElo "1382"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "90"]
[EventDate "2024.07.14"]

{A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4)} 1. c4 Nf6
2. Nc3 e6 3. e4 Bb4 4. e5 Bxc3 5. bxc3 Ne4 (5... Ng8 6. c5 Ne7 7. Nf3 b6 8. Ba3
Bb7 9. Rb1 O-O 10. Be2 Nbc6 11. O-O f6 12. d4 fxe5 13. Nxe5 Nxe5 14. dxe5 Nd5
15. cxb6 Nxc3 16. bxc7 Qxc7 17. Rxb7 Qxb7 18. Bf3 Rxf3 19. Qxf3 Qxf3 20. gxf3 {
Kocur,W (2157)-Kolar,S (2152) Czechia 2006 1-0 (47)}) 6. Qc2 $146 (6. Qg4 d5 7.
Qxg7 Rf8 8. d3 Nxc3 9. Ba3 c5 10. Bxc5 Qa5 11. Qxf8+ Kd7 12. Qe7+ Kc6 13. Qd6#
{1-0 (13) Stryjecki,M (2438)-Carbonell Bofill,C (2278) Dos Hermanas 2003}) (6.
Qg4 f5 7. Qxg7 Rf8 $18) 6... d5 (6... f5 7. d3 Ng5 8. f4 $16) 7. cxd5 Qxd5 (
7... exd5 $5 8. d3 Ng5 $16) 8. d4 $18 f6 9. Nf3 (9. Bd3 Nxc3 10. Qxc3 Qxg2 $18)
9... fxe5 (9... Qa5 10. Bb2 f5 11. Bd3 $16) 10. Nxe5 (10. Bd3 Nd6 11. dxe5 Nf5
$18) 10... O-O (10... Nc6 11. Bd3 Nc5 12. Bg6+ Kf8 13. dxc5 Nxe5 14. Be4 Qxc5
15. O-O $16) 11. Be3 (11. f3 $5 Nf6 12. Ba3 Nc6 13. Nxc6 bxc6 14. Bxf8 Kxf8 $18
) 11... Nc6 12. Nxc6 {Sacrifices material} (12. Bc4 $142 Qa5 13. O-O $16 (13.
Qxe4 $6 Qxc3+ 14. Ke2 Qb2+ 15. Bd2 Nxd4+ 16. Ke3 Nc2+ 17. Ke2 Nd4+ (17... Nxa1
$143 18. Rb1 Rxf2+ 19. Kxf2 Qxd2+ 20. Kf3 $18) 18. Ke3 Nc2+ 19. Ke2 Nd4+ $11 (
19... Nxa1 $2 {may look interesting but causes some serious problems} 20. Rb1
Rxf2+ 21. Kxf2 Qxd2+ 22. Kf3 $18))) 12... Qxc6 $11 ({Instead of} 12... bxc6 13.
Bd3 Nf6 14. O-O $16) 13. c4 b6 (13... Nd6 14. O-O-O $11) 14. Be2 Bb7 15. Bf3 (
15. f3 $5 {should be investigated more closely} Nd6 16. O-O $14) 15... Rxf3 $15
16. gxf3 Nd6 {Black threatens to win material: Nd6xc4} 17. Qe2 (17. Rg1 Qxf3
18. Rc1 Qh5 $15) 17... Qxf3 (17... Ba6 $5 18. Rg1 Bxc4 $17 (18... Nxc4 $6 19.
Bh6 g6 20. Qe4 $11)) 18. Qxf3 $15 Bxf3 {Black inhibits 0-0-0} 19. Rg1 Nxc4 20.
Rc1 b5 21. a4 (21. Rc3 Be4 $11) 21... c6 $15 ({Worse is} 21... Nxe3 22. fxe3
bxa4 23. Rxc7 $16) 22. axb5 cxb5 {Black has new passed pawns: a7+b5.} 23. Rg3
Bd5 24. Bh6 g6 25. Ke2 b4 26. Rb1 (26. h4 Nd6 27. Bd2 b3 $17) 26... a5 27. h4 (
27. Bf4 Rf8 28. Bh6 Rc8 $17) 27... Rc8 28. h5 Be4 29. Rbb3 $2 (29. Ra1 Rd8 $19)
29... Nd6 (29... Bc2 {and Black can already relax} 30. Rbf3 a4 31. hxg6 hxg6
32. Bd2 $19) 30. hxg6 (30. Rb2 Rc4 31. hxg6 Nf5 32. gxh7+ Kxh7 $19) 30... hxg6
(30... Nf5 31. gxh7+ Kxh7 32. Bf4 Nxd4+ 33. Ke3 Nxb3 34. Kxe4 $19) 31. Be3 (31.
Rb2 Nc4 32. Ra2 Rd8 $19) 31... Rc2+ 32. Kd1 $6 {puts up no fight} (32. Ke1 Ra2
33. Bc1 Ra1 $19) 32... Rc6 (32... Ra2 $5 {keeps an even firmer grip} 33. Bf4
Nf5 34. Kc1 Rc2+ 35. Kd1 Rxf2 36. Bd2 $19) 33. Rb2 (33. Ke1 Bc2 34. Rb2 b3 $19)
33... Nc4 34. Rb3 Nxe3+ 35. Rbxe3 Bc2+ (35... Bf5 36. d5 exd5 37. Re7 $19) 36.
Kd2 (36. Kc1 $142 Bf5+ 37. Kb2 $19) 36... b3 $4 {hands over the advantage to
the opponent} (36... a4 37. Rg1 Bf5 $19) 37. Rxb3 Bxb3 38. Rxb3 {A rook
endgame occured} Rd6 {Black threatens to win material: Rd6xd4} 39. Ke3 Kf7 (
39... Ra6 $15) 40. f4 $2 (40. Rb7+ $5 Kf6 41. Ra7 $11) 40... Kf6 (40... Ra6 41.
Rb7+ Kf6 42. Rb3 $17) 41. Ke4 (41. Ra3 $142 Ra6 42. Ra4 $17) 41... g5 (41... a4
$142 42. Ra3 Ra6 $17) 42. fxg5+ $11 Kxg5 43. Rb5+ {White forks: a5} Kf6 44.
Rxa5 Rb6 45. Rc5 {The white rook on an outpost} Rb1 1/2-1/2

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.14"]
[Round "3.4"]
[White "Yajima, Machiko"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "A07"]
[BlackElo "1156"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "63"]
[EventDate "2024.07.14"]

{[%mdl 8256] A07: R騁i Opening: New York and Capablanca Systems} 1. g3 d5 2.
Bg2 e5 3. Nf3 Nc6 4. O-O Nf6 5. c3 $146 {Covers b4} (5. c4 dxc4 (5... d4 6. b4
e4 7. Ng5 Bxb4 8. Nxe4 O-O 9. Nxf6+ Qxf6 10. Bb2 Rd8 11. d3 Qh6 12. Qa4 Bh3 13.
Bc1 Qe6 14. Bxh3 Qxh3 15. Nd2 Re8 16. Qd1 Qe6 17. Re1 Ne5 18. Qc2 Qh3 19. f3
Re6 20. Rf1 {Kot,J (2230)-Khanukov,B (2329) Halle 2004 0-1}) 6. Qa4 Bd6 7. Nc3
(7. Na3 Bxa3 (7... O-O 8. Nxc4 e4 9. Ng5 Nd4 10. Nxe4 b5 11. Qd1 bxc4 12. Nxf6+
Qxf6 13. Bxa8 c6 14. Kg2 Qf5 15. d3 Qh3+ 16. Kg1 Bg4 17. Re1 Bxe2 {0-1 (17)
Quinteros,M (2500)-Adla,D (2335) Buenos Aires 1990}) 8. bxa3 e4 9. Ng5 Bf5 10.
Qxc4 O-O 11. Bb2 Qxd2 12. Bxf6 gxf6 13. Nxe4 Qd4 14. Qxd4 Nxd4 15. Nxf6+ Kg7
16. Nh5+ Kh6 17. Nf4 c6 18. Rac1 Rfe8 19. e3 Ne6 20. Nxe6 Bxe6 21. Rb1 Re7 {
Freisler,P (2320)-Krajina,A (2240) Karvina 1989 1-0 (62)}) 7... O-O 8. Qxc4 Be6
9. Qh4 h6 10. d3 Be7 11. Qa4 Nd7 12. Qd1 Nb6 13. Be3 f5 14. Na4 f4 15. Bc5 Bd6
16. Rc1 Qe8 17. Nxb6 axb6 18. Bxd6 cxd6 19. d4 Bg4 {Eising,J (2415)-Nunn,J 
(2375) Amsterdam 1975 0-1 (60)}) (5. d4 e4 6. Ne5 Bd6 7. Nxc6 bxc6 8. c4 h6 9.
Nc3 O-O 10. Qa4 Bd7 11. Qa5 Be6 12. c5 Be7 13. f3 Ne8 14. Be3 exf3 15. exf3 Qd7
16. Qa6 g5 17. Rae1 Ng7 18. Bf2 Rfe8 19. Re2 Bf5 {Cacho Reigadas,S (2469)
-Gretarsson,H (2521) Havana 2002 1-0 (35)}) (5. d4 Bd6 $11) 5... Be7 {White
has a cramped position. White's piece can't move: c1} 6. Na3 a6 {Consolidates
b5} 7. d4 exd4 8. Nxd4 Nxd4 9. Qxd4 O-O 10. Be3 b6 (10... Be6 11. Rfd1 $11) 11.
Nc2 c5 12. Qf4 (12. Qd3 Bd7 $11) 12... Bb7 (12... Bg4 13. Rfe1 $15) 13. Rfd1
Bd6 {Black threatens to win material: Bd6xf4} (13... Qd7 14. Qf3 Rad8 15. Bf4
$15) 14. Qh4 (14. Qf5 h6 $14) 14... Be7 15. Bg5 Rb8 (15... Re8 $5 $14) 16. Ne3
$16 d4 (16... Qd7 17. Bxf6 Bxf6 18. Qf4 $16) 17. Bxb7 Rxb7 18. Nf5 (18. cxd4
$142 Qc8 19. Qf4 $16) 18... Ne4 $4 {further deteriorates the position} (18...
Nd5 $142 19. Nxe7+ Nxe7 20. cxd4 h6 21. Bxe7 Qxe7 22. Qxe7 Rxe7 23. dxc5 Rxe2
$16) 19. Qxe4 (19. Nxe7+ $142 {makes sure everything is clear} Rxe7 20. Bxe7
Qd5 21. Bxf8 Kxf8 22. cxd4 c4 23. Qxh7 f5 $18) 19... Bxg5 20. Qxb7 g6 (20...
Qf6 {is not the saving move} 21. Qf3 g6 22. h4 Qxf5 23. Qxf5 gxf5 24. hxg5 dxc3
25. bxc3 $18) 21. Ne3 $1 {Deflection: d4} Qb8 (21... dxe3 22. Rxd8 {Deflection
Pinning}) (21... Bxe3 22. fxe3 dxe3 23. Rd3 {Decoy Double attack} (23. Rxd8 {
Deflection Pinning})) 22. Qxb8 Rxb8 23. Nd5 (23. cxd4 $5 {and White can
already relax} Re8 24. dxc5 Bxe3 25. fxe3 bxc5 $18) 23... dxc3 24. Nxc3 Re8 (
24... Bf6 {doesn't change anything anymore} 25. Rd6 Kg7 26. Rb1 $18) 25. f4 (
25. Rd6 $142 $5 {might be the shorter path} Rb8 $18) 25... Bf6 26. Nd5 (26. Kf1
$142 $18 {makes it even easier for White}) 26... Bd4+ (26... Bxb2 {otherwise
it's curtains at once} 27. Rab1 Rxe2 $18) 27. Kf1 (27. Rxd4 $5 {seems even
better} cxd4 28. Nf6+ Kf8 29. Nxe8 Kxe8 $18) 27... Rb8 (27... Kg7 {hardly
improves anything} 28. e3 Bxb2 29. Rab1 $18) 28. e3 (28. Ne7+ {might be the
shorter path} Kg7 29. Nc6 Ra8 30. Nxd4 cxd4 31. Rxd4 b5 $18) 28... Bxb2 (28...
Bg7 {is not much help} 29. e4 $18) 29. Rab1 Ba3 30. Ne7+ (30. Rxb6 $142 {
makes it even easier for White} Ra8 $18) 30... Kg7 (30... Kf8 {cannot change
destiny} 31. Nc6 Rb7 32. Rb3 $18) 31. Nc6 Re8 (31... Rb7 {cannot change what
is in store for White} 32. Rb3 Bb4 33. Nxb4 cxb4 34. Rxb4 $18) 32. Ne5 (32. Ne5
b5 33. Rd7 $18) 1-0

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.15"]
[Round "4.1"]
[White "Nishimori, Toshiyuki"]
[Black "Sugimoto, Koichi"]
[Result "1-0"]
[ECO "B72"]
[WhiteElo "1551"]
[BlackElo "1817"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "39"]
[EventDate "2024.07.14"]

{[%mdl 8192] B72: Sicilian Dragon: 6 Be3, lines with h3+Bc4 and sidelines} 1.
e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. Qd2
d5 $146 (8... a6 9. f3 Qc7 10. g4 Nxd4 11. Bxd4 e5 12. Be3 Be6 13. h4 h5 14. g5
Nd7 15. O-O-O Bf8 16. Nd5 Bxd5 17. Qxd5 Rc8 18. c3 Qc6 19. Kb1 Be7 20. Rhf1
Qxd5 21. Rxd5 Rc6 22. f4 exf4 23. Bxf4 {Obuca,B (2184)-Stavnjak,L (2247)
Gorazde 2010 1/2-1/2 (42)}) (8... O-O $5 $11 {is an interesting alternative})
9. exd5 Nxd5 10. Nxc6 {White forks: a7+d8} (10. Nxd5 $5 Qxd5 11. Bf3 $16) 10...
bxc6 $14 {White has an active position} 11. Bd4 e5 12. Bc5 {White inhibits 0-0}
Qa5 (12... Be6 13. Nxd5 cxd5 14. Bb5+ Bd7 15. Bxd7+ Qxd7 16. O-O-O $14) 13. Ne4
(13. b4 $142 {and White is on the road to success} Qc7 14. O-O $16) 13... Qxd2+
$11 14. Nxd2 f5 15. c3 {Prevents intrusion on b4} (15. O-O-O Be6 $11) 15... Kf7
{Black loses the right to castle} (15... Nf4 16. Bf1 Be6 17. O-O-O $11) 16. O-O
(16. O-O-O Bf6 $11) 16... Rd8 17. Rad1 (17. Rfd1 Be6 $11) 17... Be6 18. Nb3 (
18. Ba6 Nc7 19. Bb7 Rab8 20. Bxc6 Bxa2 $15 (20... Rxb2 $143 21. Nf3 Rxd1 22.
Ng5+ Kg8 23. Rxd1 $14)) 18... Nf4 {Black threatens to win material: Nf4xe2} (
18... a5 $142 $5 $17) 19. Ba6 $11 Nd3 $4 {forfeits the advantage} (19... e4
$142 $11 {would save the game}) 20. Rxd3 $18 1-0

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.15"]
[Round "4.2"]
[White "Yoshii, Yukihiko"]
[Black "Nakamura, Mitsuru"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "1596"]
[BlackElo "1401"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "87"]
[EventDate "2024.07.14"]

{[%mdl 8192] D53: Queen's Gambit Declined: 4 Bg5 Be7: Early deviations} 1. c4
d5 2. cxd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. e4 e6 6. Bg5 (6. Be3 Be7 7. f3 O-O 8.
Bc4 b6 9. Nge2 Bb7 10. O-O a6 11. a4 Nbd7 12. g4 c5 13. e5 Ne8 14. f4 cxd4 15.
Nxd4 Bc5 16. Be2 Qc7 17. Qe1 f6 18. Bc4 Kh8 19. Bxe6 fxe5 20. Nf5 Nef6 {
Khurtsilava,I (2212)-Topel,Z (2179) Chakvi 2015 0-1 (33)}) 6... Be7 7. Nf3 O-O
8. Bc4 $146 (8. Bd3 c5 9. dxc5 Nbd7 10. O-O Nxc5 11. Bc2 b6 12. b4 Qxd1 13.
Rfxd1 Ncd7 14. a3 h6 15. Bh4 g5 16. Bg3 Bb7 17. Ba4 Rac8 18. Rac1 Nb8 19. Nb5
Bxe4 20. Rxc8 Rxc8 21. Nxa7 Rf8 22. Rc1 Nd5 {Aleksandrov,A (2601)-Cherenkov,A 
(2206) Moscow 2007 1-0 (41)}) 8... c6 {Secures b5} (8... h6 9. Bf4 $14) 9. O-O
$16 b5 10. Bd3 h6 11. Bh4 Qb6 $4 {leads to further unpleasantness} (11... Nxe4
$142 12. Bxe4 Bxh4 13. Nxh4 Qxh4 $14) 12. e5 $18 Nbd7 13. exf6 Bxf6 14. Bxf6
Nxf6 15. Rc1 Bb7 16. Bb1 (16. Qe2 {keeps an even firmer grip} Rfd8 $18) 16...
Rad8 (16... Rac8 {doesn't change anything anymore} 17. Ne4 Nxe4 18. Bxe4 $18)
17. Qe2 (17. Ne4 {might be the shorter path} Nxe4 18. Bxe4 e5 19. Nxe5 Qxd4 20.
Qxd4 Rxd4 21. Bxc6 Bxc6 22. Nxc6 Rd2 $18) 17... a6 (17... c5 {does not solve
anything} 18. dxc5 Qxc5 19. Ne4 $18) 18. Rfd1 Rfe8 (18... Qc7 {is not the
saving move} 19. Ne4 $18) 19. Ne4 Nd5 (19... Nxe4 {is not much help} 20. Qxe4
f5 21. Qe3 $18) 20. Nc5 a5 21. Nxb7 Qxb7 22. Ne5 Rc8 23. Qe4 Nf6 24. Qf3 Nd5
25. a3 (25. Qd3 {seems even better} Nf6 $18) 25... Rf8 (25... f6 {a fruitless
try to alter the course of the game} 26. Nd3 $18) 26. h3 (26. Qd3 {makes it
even easier for White} g6 $18) 26... b4 (26... f6 {is no salvation} 27. Nd3 $18
) 27. Rc5 bxa3 28. Qxa3 a4 29. Rdc1 Nb4 (29... Rb8 {does not improve anything}
30. Qd3 (30. Rxc6 $143 Qxb2 31. Qxb2 Rxb2 $18) 30... g6 31. Bc2 $18) 30. Qxa4
f6 (30... Ra8 {cannot undo what has already been done} 31. Qd1 $18) 31. Nd3 (
31. Nxc6 {keeps an even firmer grip} Rxc6 32. Rxc6 Nxc6 33. Qxc6 Qxc6 34. Rxc6
g5 $18) 31... Nxd3 32. Bxd3 Ra8 (32... Qxb2 {does not improve anything} 33. Qc4
Rce8 34. Rb1 $18) 33. Qxc6 (33. Qc4 $142 {seems even better} Rae8 34. Rxc6 $18)
33... Qxb2 (33... Qxc6 {what else?} 34. Rxc6 Rfd8 35. Rxe6 Rxd4 $18) 34. Qxe6+
Kh8 35. Qf5 g6 (35... Qxc1+ {does not win a prize} 36. Rxc1 g6 37. Qxg6 Ra7 38.
Qxh6+ Kg8 39. Bc4+ Rff7 40. Ba2 Ra8 41. Rc3 Rxa2 42. Rg3+ Rg7 43. Qxg7#) 36.
Qxg6 Ra7 (36... Qxc1+ {doesn't improve anything} 37. Rxc1 Ra7 38. Qxh6+ Kg8 39.
Bc4+ Rff7 40. Ba2 Ra8 41. Rc7 Raf8 42. Rc3 Re8 43. Rg3#) 37. Qxh6+ Kg8 38. Bc4+
Raf7 39. Bxf7+ (39. Qg6+ Kh8 40. Rh5+ Rh7 41. Rxh7#) 39... Kxf7 40. Qh7+ Ke6
41. Rc6+ Kd5 42. Qd7+ (42. Qf5+ Kxd4 43. Rd6#) 42... Ke4 43. Qe7+ (43. Qe6+ Kf4
44. Qg4#) 43... Kd3 (43... Kf5 {doesn't get the cat off the tree} 44. Qh7+ Kf4
45. Qh4+ Kf5 46. Qg4#) 44. Qe3# 1-0

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.15"]
[Round "4.3"]
[White "kuramoto, koutarou"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1382"]
[BlackElo "1156"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "78"]
[EventDate "2024.07.14"]

{[%mdl 8192] B23: Closed Sicilian: Lines without g3} 1. e4 c5 2. Nc3 d6 3. f4
e6 4. Nf3 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. d3 Nf6 8. O-O Be7 9. Qe1 (9. b3 O-O
10. Bb2 b5 11. a4 a6 12. Qe2 Qb6 13. e5 Nd5 14. Nxd5 Bxd5 15. exd6 Bxd6 16. c4
Bb7 17. Ne5 Rad8 18. axb5 axb5 19. Bc3 b4 20. Bb2 f6 21. Ng4 Rde8 22. Qe3 Qc7
23. Qg3 Kh8 {Kosanovic,G (2369)-Govedarica,R (2414) Srebrno Jezero 2013 1/2-1/
2 (33)}) 9... O-O 10. f5 $146 {This push gains space} (10. Qg3 Ne8 11. f5 Bf6
12. fxe6 fxe6 13. Be3 b6 14. h4 Nc7 15. Bf4 e5 16. Bg5 Qe7 17. h5 Ne6 18. Bxf6
Rxf6 19. Nh4 Nf4 20. Nf5 Qf7 21. Rxf4 exf4 22. Qg5 h6 23. Qh4 Rxf5 24. exf5
Qxf5 {Lazarevic,M (2160)-Kozlovskaya,V (2262) Cheliabinsk 2005 1/2-1/2 (36)}) (
10. a4 Ng4 $11) 10... Qc7 (10... exf5 $5 11. exf5 Re8 $17) 11. fxe6 $11 fxe6
12. Ng5 {White threatens to win material: Ng5xe6} Bd7 13. Qh4 h6 {Black
threatens to win material: h6xg5} 14. Nf3 e5 (14... b5 15. a3 $15) 15. Bxh6 $11
gxh6 16. Qxh6 {Black wins a piece} Rf7 17. Ng5 {White threatens to win
material: Ng5xf7} Bf8 $4 {makes life more difficult} (17... Rg7 $142 {this is
the best bet to save the position} 18. Rxf6 Bxf6 19. Qxf6 Rf8 $11) 18. Qg6+ (
18. Qh4 Bc6 19. Nxf7 Bg7 20. Nh6+ Bxh6 21. Qxh6 Nh7 $18) 18... Rg7 19. Qxf6 (
19. Rxf6 $142 {seems even better} Rxg6 20. Rxg6+ Bg7 $18) 19... Be7 20. Ne6
Bxf6 21. Nxc7 Rf8 22. N7d5 Bd8 23. Rxf8+ Kxf8 24. Rf1+ Rf7 25. b3 Ba5 (25... b5
26. Ne3 $18) 26. a4 Bc6 (26... a6 27. Nd1 $18) 27. Nb5 Bxd5 (27... Bxb5 {
does not win a prize} 28. axb5 Rxf1+ 29. Kxf1 $18) 28. exd5 Bb6 (28... Rxf1+ {
does not help much} 29. Kxf1 Ke7 30. Nxa7 Bd8 $18) 29. Nxd6 (29. Rxf7+ {
keeps an even firmer grip} Kxf7 30. Nxd6+ Kf8 $18) 29... Rxf1+ (29... c4+ $142
{and Black wins} 30. Rf2 cxd3 31. cxd3 Rxf2 $19) 30. Kxf1 $18 Ke7 (30... a6 {
doesn't change the outcome of the game} 31. Nxb7 Ke7 32. h4 $18) 31. Nc4 (31.
Nc8+ {and White can already relax} Kf8 32. Nxb6 Kf7 $18) 31... Bc7 (31... Bd8
$18 {no good, but what else?}) 32. d6+ Bxd6 33. Nxd6 Kxd6 34. h4 Ke6 35. h5 Kf7
36. Ke2 Kf6 37. g4 Kg5 38. Ke3 Kxg4 39. h6 Kg5 1-0

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.15"]
[Round "4.4"]
[White "Shishido, Kenta"]
[Black "Yajima, Machiko"]
[Result "1-0"]
[ECO "B02"]
[WhiteElo "983"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "41"]
[EventDate "2024.07.14"]

{[%mdl 8192] B02: Alekhine's Defence: Chase Variation and lines with early Nc3
} 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 (4. a4 d6 (4... a5 5. Ra3 d6 6. exd6 exd6
7. d4 Bf5 8. Re3+ Be7 9. Bd3 Bxd3 10. Qxd3 O-O 11. Rh3 g6 12. b3 Bg5 13. f4
Re8+ 14. Kd1 Bf6 15. Nf3 Nc6 16. Bd2 Qd7 17. Na3 Nb4 18. Bxb4 axb4 19. Nc2 {
Belezky,A (2399)-Barrero Garcia,C (2292) Coria del Rio 2005 1/2-1/2}) 5. a5
N6d7 6. exd6 cxd6 7. d4 g6 8. Nf3 Bg7 9. Be2 O-O 10. O-O Nc6 11. d5 Nxa5 12.
Bd2 b6 13. Bc3 Ne5 14. Nd4 Bd7 15. b3 g5 16. Nd2 Nb7 17. N2f3 h6 18. Nxe5 Bxe5
{Firman,N (2511)-Neverov,V (2564) Ordzhonikidze 2001 0-1 (62)}) 4... g6 $146 (
4... e6 5. Nf3 d6 6. exd6 cxd6 7. Bd3 Be7 8. O-O Nc6 9. a3 Bf6 10. Be3 Bd7 11.
Nc3 O-O 12. Rc1 e5 13. d5 Ne7 14. Qc2 Ng6 15. b4 Bg4 16. Nd2 Be7 17. f3 Bc8 18.
Qa2 a5 19. Qc2 {Al Subaihi,K (2174)-Osman,G (2185) Sanaa 2002 1-0 (35)}) (4...
d6 5. exd6 exd6 6. Nf3 $11) 5. Nf3 (5. c5 Nd5 6. Bc4 c6 $16) 5... e6 $2 (5...
d6 $142 $5 $11 {looks like a viable alternative}) 6. Bd3 d6 7. O-O N8d7 (7...
Nc6 8. Nc3 $16) 8. Bg5 (8. Qe2 Bg7 $16) 8... Be7 $16 9. Bh6 (9. Bxe7 $5 Qxe7
10. exd6 cxd6 11. a4 $16) 9... dxe5 $14 10. Bg7 {White threatens to win
material: Bg7xh8. White forks: e5+h8} Rg8 11. Bxe5 Nxe5 12. dxe5 {Black has
the pair of bishops.} Bd7 (12... g5 13. Qe2 g4 14. Nfd2 $14) 13. Nc3 $16 a6 14.
Re1 Bb4 15. Qd2 {White has a very active position} (15. Be4 c6 $16) 15... Qe7
$14 16. a3 Bc5 $4 (16... Bxc3 $142 {would hold out} 17. Qxc3 O-O-O $14) 17. b4
$18 O-O-O (17... Nxc4 {does not save the day} 18. Bxc4 Bb6 19. Ne4 $18) 18.
bxc5 Qxc5 19. Ne4 Qe7 (19... Qf8 {doesn't get the bull off the ice} 20. Nd4 Be8
21. c5 Rxd4 22. cxb6 $18) 20. Qb4 (20. c5 $142 {and the rest is a matter of
technique} Bb5 21. Nd6+ cxd6 22. exd6 Rxd6 23. cxd6 Qxd6 24. Qc1+ Kb8 25. Bxb5
axb5 $18) 20... Qf8 (20... Qxb4 {is one last hope} 21. axb4 Bc6 $18) 21. Qxf8 (
21. Qxf8 Rgxf8 22. Nc5 $18) 1-0

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.15"]
[Round "5.1"]
[White "kuramoto, koutarou"]
[Black "Nishimori, Toshiyuki"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1382"]
[BlackElo "1551"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "148"]
[EventDate "2024.07.14"]

{[%mdl 8256] B23: Closed Sicilian: Lines without g3} 1. e4 c5 2. Nc3 Nc6 3. Bb5
a6 4. Bxc6 dxc6 5. d3 (5. f4 e5 6. fxe5 Qh4+ 7. g3 Qe7 8. d3 h5 9. Be3 h4 10.
Qf3 Nh6 11. h3 Qxe5 12. g4 f6 13. O-O-O Qg3 14. e5 f5 15. g5 Nf7 16. Bf4 Qxf3
17. Nxf3 Nd8 18. d4 Ne6 19. Ne2 cxd4 {Nikac,P (2333)-Batricevic,S (2237)
Cetinje 2013 0-1}) 5... g6 $146 (5... e5 6. f4 (6. Nge2 Bd6 7. O-O f6 (7... g5
8. Ng3 h6 9. Be3 Ne7 10. Na4 Qa5 11. c3 Be6 12. b4 Qd8 13. Nxc5 Bxc5 14. Bxc5
Ng6 15. Be3 Qc7 16. Qc2 Nf4 17. d4 f6 18. Rfd1 O-O-O 19. a4 Bc4 20. Rd2 h5 21.
Rad1 h4 22. Nf5 {Kernazhitsky,L (2327)-Nielsen,K (2162) Condino 2009 1-0}) 8.
Be3 b6 9. f4 Be6 10. Kh1 Qc7 11. fxe5 Bxe5 12. Nf4 Bf7 13. Qg4 g6 14. Qh3 h5
15. Nce2 Qd6 16. d4 cxd4 17. Nxd4 Bxd4 18. Bxd4 Qxd4 19. e5 fxe5 20. Rad1 Qxd1
{Djuraev,S (2439)-Holmirzaev,B (2327) Tashkent 2009 1-0 (42)}) (6. Nf3 Bd6 7.
O-O Bg4 8. h3 Bh5 9. Be3 Nf6 10. Kh2 Nd7 11. a4 a5 12. Nb1 Nf8 13. Nbd2 Ne6 14.
Rg1 Nd4 15. c3 Nxf3+ 16. Nxf3 f5 17. g4 fxg4 18. hxg4 Bg6 19. Rg3 O-O 20. Kg2
c4 {Mossong,H (2184)-Mueller,O (2311) Khanty-Mansiysk 2010 0-1 (39)}) 6... Bd6
7. Nf3 Bg4 8. h3 Bxf3 9. Qxf3 Qh4+ 10. g3 Qe7 11. a4 Nf6 12. a5 Nd7 13. Bd2 c4
14. dxc4 exf4 15. gxf4 Bb4 16. Rg1 O-O-O 17. O-O-O Qc5 18. Rxg7 Qxa5 19. Nb1
Nb6 20. Bxb4 {Marholev,D (2418)-Villa Izquierdo,R (2195) Lyon 2006 1-0 (38)}) (
5... e5 6. f4 exf4 7. Bxf4 $11) 6. f4 (6. Nf3 Bg7 $14) 6... Bg7 7. Nf3 b5 (7...
Bg4 8. h3 Bxf3 9. Qxf3 $14) 8. O-O $14 b4 {Black wins space} (8... Bd4+ 9. Kh1
$16) 9. Na4 $16 Bg4 10. e5 Qd4+ $2 (10... c4 11. dxc4 Qxd1 12. Rxd1 $16) 11.
Kh1 (11. Nxd4 $5 {keeps an even firmer grip} Bxd1 12. Nxc5 Bg4 $18) 11... Bxf3
(11... Qd8 12. h3 Bc8 13. Be3 $18) 12. Qxf3 $18 (12. gxf3 $6 Nh6 $14) 12... Rc8
(12... Qd5 13. Qf2 Rd8 14. Nxc5 $18) 13. Nb6 Rc7 14. c3 bxc3 (14... Qd8 15. f5
f6 16. e6 $18) 15. bxc3 Qxc3 (15... Qd8 16. Rb1 $18) 16. Rb1 Nh6 (16... Qd4 {
doesn't improve anything} 17. Be3 Qd8 $18) 17. Na8 (17. Nd5 $142 {and White
wins} cxd5 18. Rb8+ Rc8 19. Rxc8+ Kd7 20. Rxh8 Bxh8 21. Qxd5+ Ke8 22. Qa8+ Kd7
23. Qb7+ Kd8 24. Be3 $18) 17... Rc8 $16 18. Nc7+ $4 {not a good decision,
because now the opponent is right back in the game} (18. Rb3 $142 Qa5 19. Nb6
$16) 18... Rxc7 $19 19. Rb8+ (19. f5 Nxf5 20. g4 e6 21. gxf5 exf5 (21... Qxe5
$2 {fails to} 22. Bf4 Qxf5 23. Bxc7 $18) (21... Bxe5 22. Bb2 Qxb2 23. Rxb2 Bxb2
24. Qg3 $18) (21... gxf5 $6 22. Rg1 Bxe5 23. Bb2 Qxb2 24. Rxb2 Bxb2 25. Rb1 $17
) 22. Rb8+ Ke7 $19) 19... Kd7 20. Rb3 (20. Bb2 Qc2 21. Rxh8 Bxh8 22. e6+ fxe6
23. Bxh8 $19) 20... Qd4 $4 {a weak move, ruining a winning position} (20... Qa5
$142 {secures the point} 21. Ra3 Qb5 $19) 21. Bb2 $16 Qd5 22. e6+ $1 {
Discovered attack: e5, Bb2xg7} Qxe6 $2 (22... Qxe6 23. Bxg7 {Discovered attack}
) (22... Kxe6 23. Re1+ {Decoy Double attack} (23. Bxg7 {Discovered attack})) (
22... fxe6 23. Bxg7 {Discovered attack}) 23. Bxg7 $18 Rg8 (23... Rd8 24. Bxh6
Ke8 25. Qf2 $18) 24. Bxh6 f6 25. Qe4 {[%cal Yf4f5] White prepares f5} (25. Qf2
{seems even better} Qf5 26. Rc1 Qh5 27. Rxc5 Qd1+ 28. Qg1 Qxg1+ 29. Kxg1 Rd8
$18) 25... Qg4 $2 (25... Qxe4 26. dxe4 Rd8 27. f5 $18) 26. f5 (26. Re1 $142 $5
{and White can already relax} Re8 $18) 26... gxf5 27. Qxf5+ Qxf5 28. Rxf5 Ke6 (
28... c4 29. dxc4 Rg4 30. Rf4 Rxf4 31. Bxf4 $18) 29. Rxc5 Rg4 30. h3 (30. Ra5 {
might be the shorter path} Kf7 $18) 30... Ra4 31. Bf4 {White threatens to win
material: Bf4xc7} (31. a3 $142 $18 {secures victory}) 31... Rxf4 $11 32. Rb6 {
[%cal Rb6c6,Rc5c6,Gc7c6] The isolani on c6 becomes a target. White threatens
to win material: Rb6xa6. White forks: a6+c6} (32. Rh5 Rf1+ 33. Kh2 Rf2 $11)
32... Kd6 $15 {Black threatens to win material: Kd6xc5} 33. Ra5 {White
threatens to win material: Ra5xa6} Rd4 {Black threatens to win material: Rd4xd3
} 34. Ra3 Ra7 35. Rc3 {White threatens to win material: Rc3xc6} Rc7 36. Rxa6
Rd5 37. Ra8 h5 38. Rd8+ Rd7 {Black threatens to win material: Rd7xd8} 39. Rc8 {
White threatens to win material: Rc8xc6} (39. Rxd7+ Kxd7 40. a4 Re5 $11) 39...
Rc5 $15 {Black threatens to win material: Rc5xc3} 40. Rb3 Kd5 41. Rcb8 Kd4 42.
R8b4+ Kd5 43. a4 (43. Rb8 e5 $15) 43... Ra7 44. Ra3 Raa5 45. Rh4 {White
threatens to win material: Rh4xh5} Kd6 46. Rd4+ Rd5 {Black threatens to win
material: Rd5xd4} 47. Rc4 c5 48. Rh4 Rd4 {[%cal Ra5a4,Rd4a4,Ga3a4] Attacking
the isolated pawn on a4} 49. Rxd4+ cxd4 50. Kg1 (50. Ra1 Kc5 51. g4 hxg4 52.
hxg4 Kb4 $15) 50... Kc5 $17 51. Ra2 (51. Ra1 Kb4 52. Kf2 Rxa4 $17) 51... Kb4
52. Kf2 Rxa4 (52... Kb3 $142 53. Ra1 Kb2 $19) 53. Rxa4+ $4 {causes further
problems for White} (53. Rc2 $142 $17) 53... Kxa4 $19 54. Kf3 Kb4 55. g4 (55.
h4 {there is nothing else anyway} f5 56. Kf4 $19) 55... h4 56. Kf4 Kc3 57. Ke4
e5 (57... e6 $142 {finishes off the opponent} 58. Kf3 Kxd3 $19) 58. Kf5 Kxd3
59. Kxf6 Ke4 (59... e4 $142 {and Black has triumphed} 60. g5 e3 61. g6 $19) 60.
g5 d3 61. g6 d2 62. g7 d1=Q 63. g8=Q Qf1+ 64. Ke7 Qxh3 $4 {overlooking an easy
win} (64... Ke3 $142 $19 {and the result of the game is clear: Black will win})
65. Qc4+ $11 Kf3 66. Qf7+ $4 {White lets it slip away} (66. Qb3+ Kg2 67. Qb2+
Kg3 68. Qc3+ Kh2 69. Qxe5+ Qg3 70. Qe2+ Kh3 $19) 66... Kg3 $4 {an unfortunate
move that relinquishes the win} (66... Kg2 {makes it even easier for Black} 67.
Qa2+ Kg3 68. Qb3+ Kh2 69. Qb2+ Qg2 70. Qxe5+ Qg3 71. Qe2+ Kh3 72. Qe4 $19) 67.
Qg7+ $4 {throwing away the advantage} (67. Qb3+ Kh2 68. Qb2+ Qg2 69. Qxe5+ Qg3
70. Qe2+ Kh3 71. Qe4 $19) 67... Qg4 68. Qxe5+ Kh3 69. Qe3+ Qg3 70. Qe6+ Kg2 71.
Qe2+ Qf2 72. Qe4+ Kf1 73. Qb1+ (73. Kd7 $19) 73... Qe1+ 74. Qxe1+ Kxe1 0-1

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.15"]
[Round "5.2"]
[White "Shishido, Kenta"]
[Black "Yoshii, Yukihiko"]
[Result "0-1"]
[ECO "C91"]
[WhiteElo "983"]
[BlackElo "1596"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "70"]
[EventDate "2024.07.14"]

{[%mdl 8192] C91: Closed Ruy Lopez: 7...d6 8 c3 0-0 9 d4} 1. e4 e5 2. Nf3 Nc6
3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Bg4 10. d5
Na5 11. Bc2 c5 12. b4 (12. Nbd2 Ne8 (12... g6 13. h3 Bd7 14. b4 Nb7 15. Rb1 Nh5
16. Nf1 Bf6 17. N1h2 Bg7 18. Bg5 Qe8 19. Ng4 Rc8 20. Qd2 f6 21. Be3 Kh8 22. Nh6
Nf4 23. Bxf4 exf4 24. Ng4 h5 25. Ngh2 Bh6 26. Qd3 Rg8 27. Nh4 {Sax,G (2605)
-Meszaros,A (2360) Hungary 1991 1-0 (40)}) 13. h3 Bd7 14. Nf1 g6 15. Bh6 Ng7
16. Ng3 Nc4 17. Qc1 Nb6 18. h4 a5 19. h5 a4 20. Nh2 Rc8 21. b3 Ra8 22. Qd2 Ra7
23. Bd3 axb3 24. axb3 Qa8 25. Rxa7 Qxa7 26. Bg5 f6 {Tseshkovsky,V (2590)-Savon,
V (2540) Baku 1977 1/2-1/2 (60)}) 12... cxb4 13. cxb4 Nc4 14. Bd3 $146 (14. a4
Nb6 15. a5 Nc4 16. h3 Bd7 17. Bd3 Rc8 18. Ra2 Ne8 19. Rc2 Rc7 20. Qe2 Qc8 21.
Bxc4 Rxc4 22. Rxc4 bxc4 23. Nfd2 Bb5 24. Nc3 Nf6 25. Ndb1 Qb7 26. Na3 Bd7 27.
Nc2 Rc8 28. Bd2 Ne8 {Kurajica,B (2525)-Ivkov,B (2520) Vinkovci 1976 1/2-1/2})
14... Rc8 15. Nbd2 Nb6 {White has an active position} 16. Bc2 (16. Nb3 Bd7 $11)
16... h6 {Controls g5} 17. a4 Nc4 {A beautiful square!} (17... Qc7 $5 18. Ra2
bxa4 19. Bxa4 Nxa4 20. Rxa4 Qb7 $17) 18. Bd3 Qb6 (18... Rc7 19. axb5 axb5 20.
Nf1 $11) 19. Nf1 (19. Qb3 Qc7 $14) 19... Rc7 20. a5 {White threatens to win
material: a5xb6} Qb7 {White has an active position} 21. Ne3 Rfc8 (21... Bd7 $5
$15) 22. Nxg4 $11 Nxg4 {White has the pair of bishops} 23. h3 {White threatens
to win material: h3xg4} Nf6 24. Be3 (24. Ra2 Nh5 $11) 24... Nxe3 25. Rxe3 {
Opposite coloured bishops appeared} Rc3 26. Nh4 (26. g3 Nh7 $11) 26... g6 (
26... Nxd5 27. exd5 Bxh4 28. Bf5 $17) 27. Rg3 $2 (27. Nf3 $5 $15 {should be
considered}) 27... Kh7 (27... Nxe4 $142 28. Bxe4 Bxh4 29. Rxc3 Rxc3 $19) 28.
Kh2 $2 (28. Rf3 $142 $5 $17) 28... Nh5 $19 29. Rg4 (29. Nf5 Nxg3 30. Nxg3 Qa7
$19) 29... Nf4 30. Bf1 (30. Rxf4 exf4 31. Nf3 Bf6 $19) 30... Bxh4 (30... Rc2 $5
{makes it even easier for Black} 31. Nf3 Rxf2 32. Rc1 $19) 31. Rxh4 Qa7 32. Kg1
Rc2 33. Qf3 $2 (33. Qe1 $19) 33... R8c3 34. Qg4 (34. Rxf4 {a last effort to
resist the inevitable} Rxf3 35. Rxf3 $19) 34... Qxf2+ 35. Kh2 Nh5 (35... Nh5
36. Rxh5 gxh5 37. Qf5+ Qxf5 38. exf5 Rb3 $19) 0-1

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.15"]
[Round "5.3"]
[White "Sugimoto, Koichi"]
[Black "Yajima, Machiko"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1817"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "39"]
[EventDate "2024.07.14"]

{[%mdl 8192] D00: 1 d4 d5: Unusual lines} 1. d4 d5 2. Nc3 Nf6 3. Bf4 Bf5 4. e3
a6 (4... e6 5. Bd3 Bd6 (5... Bxd3 6. Qxd3 c6 7. h3 Bd6 8. Nf3 Qc7 9. Bg5 Nbd7
10. e4 Nxe4 11. Nxe4 dxe4 12. Qxe4 Qa5+ 13. Bd2 Bb4 14. c3 Be7 15. O-O Nf6 16.
Qe2 b5 17. Ne5 Rc8 18. Qf3 Qc7 19. a4 a6 20. axb5 {Kapnisis,S (2455)-Dimic,P 
(2320) Skopje 2015 1-0 (32)}) 6. Nge2 Bxd3 7. Qxd3 O-O 8. Bxd6 Qxd6 9. O-O Nbd7
10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 c6 13. c3 {1/2-1/2 (13) Sariego,W (2435)
-Arencibia Rodriguez,W (2530) Holguin 1991}) 5. f3 $146 {Prevents intrusion on
e4} (5. Bd3 Bxd3 6. cxd3 Nbd7 7. Nf3 e6 8. O-O Be7 9. Rc1 Nh5 10. Bxc7 Qxc7 11.
Nxd5 Qxc1 12. Qxc1 exd5 13. g4 Nhf6 14. g5 Ng8 15. Qc7 Bd8 16. Qxb7 Rb8 17.
Qxd5 Ne7 18. Qc4 a5 19. d5 O-O {Golovankov,V (2282)-Sichinava,Z (2161) St
Petersburg 2008 1-0 (62)}) (5. Bd3 e6 $11) 5... g6 (5... c5 6. Bd3 Bd7 7. dxc5
$11) 6. g4 $14 {White threatens to win material: g4xf5} Be6 7. h4 Bg7 (7... Nc6
8. h5 $14) 8. h5 $16 {White gains space} Nc6 9. Qd2 (9. h6 Bf8 10. Qd2 $16)
9... Qd7 $2 (9... gxh5 10. g5 Nd7 11. Rxh5 $16) 10. hxg6 (10. h6 $5 Bf8 11. Nh3
$18) 10... fxg6 11. Na4 b6 12. O-O-O O-O-O $4 {solves nothing} (12... h5 $142
$16) 13. Bxa6+ (13. Nxb6+ {and White can already relax} cxb6 14. Bxa6+ Qb7 15.
Bxb7+ Kxb7 $18) 13... Kb8 14. Nxb6 Qe8 15. Na4 (15. Qc3 {might be the shorter
path} Rd6 16. Na4 Bc8 $18) 15... Rd6 (15... Bc8 {cannot change destiny} 16.
Bxc8 Kxc8 17. Nc5 $18) 16. Nc5 Nd7 17. Qc3 Nxc5 18. Qxc5 Na7 (18... Ka8 $18 {
no good, but what else?}) 19. Qb4+ Rb6 (19... Nb5 {desperation} 20. Bxd6 Qc6
21. Bxc7+ Kxc7 22. Bxb5 Qd6 $18) 20. Qxb6+ (20. Qxb6+ Ka8 21. Qb7#) 1-0

[Event "Sapporo Summer Chess Tournament 2024"]
[Site "Hokkaido"]
[Date "2024.07.15"]
[Round "5.4"]
[White "Ito, Katsuhide"]
[Black "Nakamura, Mitsuru"]
[Result "0-1"]
[ECO "B84"]
[WhiteElo "1156"]
[BlackElo "1401"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "60"]
[EventDate "2024.07.14"]

{[%mdl 8192] B84: Sicilian Scheveningen: 6 Be2 a6, lines without early Be3} 1.
e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O h6 $146 {
Secures g5} (7... e5 8. Nb3 Be6 9. f4 Qc7 10. Nd5 Bxd5 11. exd5 Nbd7 12. c4 {
1/2-1/2 (12) Lukin,A (2420)-Karasev,V (2405) St Petersburg 1995}) (7... Bd7 8.
a4 (8. Qd3 Nc6 9. Rd1 Nxd4 10. Qxd4 Bc6 11. a4 Be7 12. a5 O-O 13. Bf3 Nd7 14.
Be3 Qc7 15. Be2 Rac8 16. Qd2 Rfe8 17. Ba7 h6 18. h3 Nc5 19. Bb6 Qb8 20. Qe3 Bf6
21. Ra3 Nd7 22. Ba7 Qc7 {Hercules01 (2420)-Ciron (2502) playchess.com INT 2007
1/2-1/2 (93)}) 8... Nc6 9. Kh1 Nxd4 10. Qxd4 Bc6 11. f4 Be7 12. a5 d5 13. e5
Ne4 14. Nxe4 dxe4 15. Qc3 O-O 16. Be3 Bd5 17. Qe1 Rc8 18. Rc1 f6 19. c4 Bc6 20.
exf6 Bxf6 21. b4 Ba4 22. Bd1 {Hansen,S (2555)-Baramidze,D (2542) Germany 2005
0-1 (40)}) (7... b6 8. f4 Ra7 9. Be3 Be7 10. Qe1 O-O 11. Qg3 Rd7 12. f5 e5 13.
Bh6 Ne8 14. Nd5 Bh4 15. Qg4 Rb7 16. Bxa6 Nxa6 17. Nc6 Qd7 18. Bxg7 Nxg7 19.
Qxh4 f6 20. Nce7+ Qxe7 21. Nxe7+ Rxe7 22. Rad1 {Ramirez,A (2483)-Mateo,R (2445)
Decameron 2003 1-0 (38)}) (7... Bd7 8. Qd3 $16) 8. h3 (8. Qd3 Bd7 $16) 8... Be7
$14 9. Be3 O-O {Black is behind in development.} 10. a3 Qc7 11. Qd2 {Black has
a cramped position} (11. Qd3 b5 $11) 11... Nbd7 $11 12. b4 b5 13. a4 bxa4 14.
Nxa4 (14. Rfb1 Bb7 15. f3 Rfc8 $11) 14... Bb7 (14... Nxe4 15. Qd3 Bb7 16. c4
$17) 15. f3 {Controls e4} (15. Qc3 Rfc8 16. Qxc7 Rxc7 $11) 15... d5 16. e5 Nxe5
17. Bf4 (17. Nc5 Nc4 18. Bxc4 dxc4 $17) 17... Bd6 18. b5 (18. Nc5 $142 $5 $17)
18... Nc4 $19 19. Bxc4 $4 {simply worsens the situation} (19. Bxd6 $142 Qxd6
20. Bxc4 dxc4 21. Qf2 $19) 19... Bxf4 (19... dxc4 $6 {is much worse} 20. Be3
Bh2+ 21. Kh1 axb5 22. Nxb5 $17) 20. Qe2 (20. Qf2 {doesn't do any good} dxc4 21.
b6 Qe7 $19) 20... dxc4 21. b6 Qd6 (21... Qd8 $142 {might be the shorter path}
22. Rfd1 Nd5 23. Qe1 $19) 22. Rad1 (22. Rfd1 {cannot undo what has already
been done} Nd5 23. Qe1 Nxb6 24. Nxe6 Qxe6 25. Qxe6 fxe6 26. Nxb6 Be3+ 27. Kh1
Bxb6 $19) 22... Nd5 23. Qe4 Qb4 24. Rb1 (24. Ra1 {is still a small chance} Rab8
25. c3 $19) 24... Qxa4 25. Nb3 Rab8 (25... Nc3 $142 {and Black has triumphed}
26. Ra1 Bxe4 27. Rxa4 Nxa4 28. fxe4 cxb3 29. cxb3 Be3+ 30. Kh2 Nxb6 31. h4 $19)
26. Nc5 Qc6 27. Rfe1 Qxc5+ 28. Kh1 Bg3 (28... Qf2 29. Qd4 Qxd4 30. Rb4 Qf2 31.
Reb1 Qg3 32. Kg1 Ne3 33. Rxc4 Qxg2#) 29. Qg4 Bxe1 30. Rxe1 Qxb6 (30... Qxb6 31.
Qe4 Rfc8 $19) 0-1

