[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "1.1"]
[White "Watanabe, Katsuki"]
[Black "Sugimoto, Koichi"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1612"]
[BlackElo "2040"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "40"]

{B01: Scandinavian Defence} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nf3 Nf6 5. Bc4
a6 6. h3 (6. d4 e6 7. Qe2 b5 8. Bd3 Bb7 9. O-O Be7 10. a4 b4 11. Ne4 Qd5 12.
Nxf6+ Bxf6 13. c4 bxc3 14. bxc3 O-O 15. Rb1 Bc6 16. c4 Qh5 17. Be4 Qg4 18. d5
exd5 19. cxd5 Re8 20. Rb4 Bxd5 {Crosa Coll,M (2384)-Giaccio,A (2517)
Montevideo 2002 1-0}) (6. d3 Nc6 7. a3 b5 8. Bb3 Bb7 9. Qe2 e6 10. Bg5 h6 11.
Be3 Be7 12. O-O Ne5 13. Nxe5 Qxe5 14. d4 Qf5 15. Rad1 Rd8 16. Qd3 Qh5 17. Bf4
c5 18. Nxb5 O-O 19. Nc3 Rxd4 20. Qe2 Rxf4 {Elistratov,S (2251)-Kozionov,K 
(2387) Voronezh 2014 0-1 (35)}) 6... b5 7. Bb3 Bb7 $146 (7... c5 8. d3 Bb7 9.
O-O e6 10. a4 b4 11. Ne2 Bxf3 12. gxf3 Nbd7 13. Bf4 Qc6 14. Kg2 h5 15. a5 Bd6
16. Ba4 Qc7 17. Qd2 Nd5 18. Bxd6 Qxd6 19. c4 Ne7 20. d4 Nf5 21. Rfd1 Nh4+ 22.
Kf1 {Ricaurte Lopez,J (2353)-Morejon Rodriguez,E (2173) Cali 2001 1-0}) 8. d3 {
Consolidates e4} e6 {Covers d5} 9. O-O Be7 10. Qe2 c5 11. a3 (11. Rd1 O-O $11)
11... Nc6 12. Ne4 {White threatens to win material: Ne4xd6} Qc7 13. a4 O-O 14.
axb5 axb5 15. Bg5 $2 (15. Rxa8 $142 {and White is still in the game} Rxa8 16.
c3 $15) 15... Nxe4 $19 16. Bxe7 Qxe7 17. dxe4 (17. Qxe4 Nd4 18. Qe3 Bxf3 19.
gxf3 Qf6 $19) 17... c4 $19 18. Bxc4 bxc4 19. Qxc4 (19. Rxa8 Bxa8 20. Qxc4 Qb4
$19) 19... Qb4 20. Qxb4 Nxb4 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "1.2"]
[White "Yamanouchi, Kento"]
[Black "Kanamaru, Tomoji"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1996"]
[BlackElo "1586"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "41"]

{A03: Bird's Opening with 1...d5} 1. Nf3 d5 2. b3 c5 3. Bb2 Nc6 4. e3 e6 5. Bb5
Bd7 6. O-O Nf6 7. d3 Be7 8. Bxc6 Bxc6 9. Ne5 Rc8 10. f4 O-O 11. Nd2 b5 (11...
Nd7 12. Nxc6 Rxc6 13. e4 f5 14. Qe2 Bf6 15. Bxf6 Nxf6 16. Rae1 dxe4 17. dxe4
Qd4+ 18. Kh1 Nxe4 19. Nxe4 Qxe4 20. Qxe4 fxe4 21. Rxe4 Rd8 22. Kg1 Rd4 23. Rfe1
Rxe4 24. Rxe4 Kf7 25. Kf2 {1/2-1/2 (25) Balashov,Y (2510)-Sveshnikov,E (2560)
Elista 1997}) 12. Nxc6 (12. Rf3 c4 13. Rh3 Bb7 14. Bd4 Bc5 15. Ndf3 Bxd4 16.
Nxd4 cxd3 17. cxd3 a6 18. Qe1 Qd6 19. Qh4 Rfd8 20. g4 Qa3 21. g5 Rc1+ 22. Rxc1
Qxc1+ 23. Kf2 Qd2+ 24. Ne2 d4 25. gxf6 dxe3+ 26. Rxe3 {1-0 (26) Schlamp,R 
(2333)-Stelzer,H (2228) Frankfurt 2008}) 12... Rxc6 13. Qf3 Qc7 $146 (13... Rc8
14. Qh3 c4 15. Nf3 c3 16. Bc1 Qb6 17. g4 Bc5 18. Re1 Qb7 19. g5 Ne8 20. Kg2 a5
21. a4 b4 22. Ne5 Nd6 23. Qf3 f6 24. Ng4 fxg5 25. e4 dxe4 26. dxe4 gxf4 27. Ne5
Bd4 {0-1 (27) Hernandez,A (2325)-Bruzon Batista,L (2325) Matanzas 1998}) 14. g4
(14. a4 b4 $11) 14... Rd8 (14... d4 15. a4 a6 16. e4 $11) 15. g5 {White
threatens to win material: g5xf6} Ne8 16. Qh5 {Black king safety dropped} (16.
a4 a6 $11) 16... g6 {Black threatens to win material: g6xh5} (16... c4 17. Be5
Bd6 18. bxc4 bxc4 19. Nf3 $15) 17. Qh4 (17. Qe2 c4 18. dxc4 dxc4 19. bxc4 Nd6
$11) 17... Bf8 (17... c4 18. Be5 Qb6 19. Rf3 $15) 18. Nf3 Ng7 (18... Ra6 19.
Be5 Nd6 20. Qe1 $11) 19. Ne5 $14 {White threatens to win material: Ne5xc6} Rcd6
$2 (19... Nf5 $142 $5 {and Black can hope to survive} 20. Qh3 d4 21. Nxc6 Qxc6
22. exd4 cxd4 $11) 20. Ng4 $16 Nf5 $4 {the position was bad, and this mistake
simply hastens the end} (20... Ne8 $142 21. Be5 Qe7 $16) 21. Nf6+ (21. Nf6+ Kg7
22. Qxh7#) 1-0

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "1.3"]
[White "Yamamoto, Eisei"]
[Black "Manabe, Hiroaki"]
[Result "0-1"]
[ECO "E24"]
[WhiteElo "1554"]
[BlackElo "1760"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "54"]

{E24: Nimzo-Indian: S舂isch: Unusual Black 5th moves and 5...c5 sidelines} 1.
d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. a3 Bxc3+ 6. bxc3 c5 $146 (6... Bb7 7.
Bg5 (7. e3 Ne4 8. Bd3 f5 9. Qc2 O-O 10. O-O d6 11. Bb2 Nd7 12. Rad1 Rf6 13. Ne1
Rh6 14. f3 Qh4 15. h3 Qg5 16. Bc1 Ng3 17. Rf2 Nf6 18. Qd2 Rh4 19. Qa2 Nfh5 20.
Kh2 Rf8 21. e4 f4 {Moussa,A (2205)-Panchanathan,M (2549) Las Vegas 2010 0-1})
7... h6 8. Bh4 g5 9. Bg3 Ne4 10. Qc2 d6 11. Nd2 Nxg3 12. hxg3 Nd7 13. e4 Qe7
14. a4 a5 15. Bd3 h5 16. f3 O-O-O 17. O-O-O Rdg8 18. Nb3 g4 19. f4 h4 20. gxh4
Rxh4 21. g3 {Hayrapetyan,H (2426)-Sjugirov,S (2664) St Petersburg 2014 0-1 (72)
}) (6... h6 7. e3 Bb7 8. Be2 O-O 9. O-O Nc6 10. Qc2 d6 11. Nd2 Na5 12. f3 e5
13. Nb3 Nxb3 14. Qxb3 e4 15. f4 Bc8 16. h3 a5 17. Bd2 a4 18. Qc2 Ra5 19. Be1
Qe7 20. Bh4 g5 21. fxg5 {Golda,H (2291)-Lentrodt,T (2233) Bad Neustadt/Saale
2008 1-0 (47)}) (6... Ba6 7. Nd2 $11) 7. Bg5 Bb7 8. e3 h6 9. Bh4 d6 {Controls
e5} 10. Bd3 Nbd7 11. O-O O-O 12. Re1 e5 13. d5 {White gets more space} (13. Nd2
cxd4 14. cxd4 Re8 $14) 13... g5 $11 {Black threatens to win material: g5xh4}
14. Bg3 (14. Nxg5 $142 $5 {and White can hope to live} hxg5 15. Bxg5 $11) 14...
e4 $17 15. Bxd6 Re8 16. Bc2 exf3 17. Qxf3 Ne5 18. Bxe5 Rxe5 19. e4 (19. Qh3 Kg7
$17) 19... Qd6 20. Qh3 (20. Re3 Rae8 $17) 20... Kg7 21. g3 (21. Qd3 $5 $17)
21... g4 $19 22. Qg2 Ba6 23. Bd3 Rae8 24. f4 gxf3 25. Qxf3 Bc8 26. Qg2 $2 (26.
Re3 $142 $19) 26... Bf5 $3 {Deflection: e4} 27. Ra2 (27. exf5 Rxe1+ {Decoy
Deflection Pinning}) 27... Bxe4 (27... Bxe4 28. Bxe4 Nxe4 $19) 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "1.4"]
[White "Sato, Yasuji"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "1630"]
[BlackElo "1449"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "67"]

{B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} 1. e4 c5 2. Nf3 Nc6 3. Bc4
e6 4. c3 Nf6 $146 {Black threatens to win material: Nf6xe4} (4... d5 5. exd5
exd5 6. Qe2+ Be7 7. Bb5 Nf6 8. d4 O-O 9. h3 Bd6 10. O-O Re8 11. Qd1 Ne4 12.
Nbd2 Bd7 13. dxc5 Bxc5 14. Bd3 Qc7 15. Nb3 Bb6 16. Bc2 Bxh3 17. Nfd4 Nxd4 18.
Nxd4 Bd7 19. Be3 {Alishani,I (2180)-Dancevski,O (2398) Skopje 2011 0-1 (58)})
5. e5 {White threatens to win material: e5xf6} Ng4 (5... d5 6. Be2 Nd7 7. d4
$11) 6. d4 $14 d5 7. exd6 Qxd6 8. Ng5 (8. h3 Nf6 $11) 8... h5 (8... Nf6 $142 $5
$15 {is worth looking at}) 9. Ne4 $14 {White threatens to win material: Ne4xd6.
White forks: c5+d6} Qd8 10. Be3 $4 {gives the opponent new chances} (10. h3
$142 Nf6 11. Nxc5 $16) 10... cxd4 $17 11. cxd4 Bb4+ (11... f5 12. Nec3 $17) 12.
Nbc3 $15 Nxe3 {Black forks: c4, g2+d1} (12... f5 13. Bg5 Qxd4 14. Qxd4 Nxd4 15.
Rd1 fxe4 16. Rxd4 $15) 13. fxe3 $11 {Black has the pair of bishops} Qh4+ 14.
Nf2 e5 {Black threatens to win material: e5xd4} 15. Qf3 {White threatens to
win material: Qf3xf7} Qe7 (15... O-O $142 {and Black could well hope to play on
} 16. g3 Qg5 $15) 16. O-O $16 O-O $2 (16... Bxc3 $142 $5 17. bxc3 f5 $16) 17.
Qxh5 $18 exd4 (17... Bxc3 18. bxc3 exd4 19. exd4 Nd8 $18) 18. Nd5 (18. Nfe4
$142 {a pity that White didn't try this} Be6 19. Ng5 Qxg5 20. Qxg5 Bxc4 21. Ne4
$18) 18... Qe5 $16 19. Qf3 (19. Qh4 dxe3 20. Ne4 $18) 19... dxe3 $4 {Black has
let it slip away.} (19... Bd6 20. g3 Be6 $11) 20. Nd3 $18 Qd4 (20... Qe6 $142
21. Qh5 Be7 $18) 21. Qxe3 $4 {what a pity, victory was in sight.} (21. N3xb4
$142 {White has the better game} e2+ 22. Rf2 $18) 21... Qxe3+ 22. Nxe3 Bd2 {
Black threatens to win material: Bd2xe3} 23. Nd5 Nd4 (23... Be6 $5 {is an
interesting idea} 24. Rad1 Rfd8 25. Rxd2 Bxd5 $11) 24. Rad1 {White threatens
to win material: Rd1xd2} (24. Ne5 b5 25. Rad1 $16) 24... Bh6 $2 (24... Bg5 25.
Nc7 Rb8 26. Rxf7 Rxf7 27. Ne5 $14) 25. Ne7+ (25. Ne5 $142 b5 26. Nxf7 bxc4 27.
Nxh6+ gxh6 28. Rxf8+ Kxf8 29. Rxd4 $18) 25... Kh8 $4 {another bit of territory
lost} (25... Kh7 $142 $5 26. Nxc8 Be3+ 27. Kh1 Raxc8 28. Bxf7 Nc6 $16) 26. Ne5
(26. Ng6+ {makes it even easier for White} Kg8 27. Nxf8 Be3+ 28. Kh1 Bf5 $18)
26... Ne6 $4 {the pressure is too much, Black crumbles} (26... Be6 $142 27.
Bxe6 Nxe6 28. Nxf7+ Kh7 29. Nxh6 gxh6 $18) 27. N5g6+ fxg6 28. Nxg6+ Kh7 29.
Nxf8+ Nxf8 30. Rxf8 g6 (30... Be3+ {cannot undo what has already been done} 31.
Kh1 Bc5 32. Bd3+ g6 33. Rf7+ Kh6 34. Rc1 $18) 31. Rf7+ (31. Bg8+ {might be the
shorter path} Kg7 32. Rdd8 Be3+ 33. Kf1 Bc5 $18) 31... Bg7 32. Rd4 Bf5 (32...
Kh6 {the last chance for counterplay} 33. Rd8 Be6 34. Rxa8 Bxc4 35. Rxb7 Bd4+
36. Kh1 Bxa2 $18) 33. Rh4+ Kg8 34. Rxf5# 1-0

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "2.1"]
[White "Sugimoto, Koichi"]
[Black "Sato, Yasuji"]
[Result "1-0"]
[ECO "D09"]
[WhiteElo "2040"]
[BlackElo "1630"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "49"]

{D09: Albin Counter Gambit: Main line with 5 g3} 1. d4 d5 2. c4 e5 3. dxe5 d4
4. Nf3 Nc6 5. g3 f6 (5... Bb4+ 6. Nbd2 Be6 7. Bg2 Bxc4 8. O-O Bxd2 9. Qxd2 Qd7
10. b3 Bd5 11. Bb2 Nge7 12. Rfd1 Rd8 13. Qg5 O-O 14. Nxd4 h6 15. e6 hxg5 16.
exd7 Bxg2 17. Kxg2 Nb8 18. Nb5 f6 19. Nxc7 Rxd7 20. Rxd7 {Seul,G (2425)-Muse,M
(2455) Germany 1994 1-0 (63)}) 6. exf6 Qxf6 (6... Nxf6 7. Bg2 Bc5 8. O-O Bg4 9.
Nbd2 Qe7 10. a3 a5 11. Nb3 Rd8 12. Bg5 O-O 13. Qc2 h6 14. Bxf6 Rxf6 15. Rad1
Bf5 16. Qd2 d3 17. Rfe1 Qf8 18. Nxc5 Qxc5 19. Qe3 Qxc4 20. exd3 Rxd3 21. Bf1 {
Nylen,A (2242)-Johansson,C (2213) Sweden 2004 1-0}) 7. Bg2 Bg4 $146 (7... Bf5
8. O-O Bc5 9. Nbd2 a5 10. Nb3 Ba7 11. c5 Be4 12. Nbxd4 Bxc5 13. Nxc6 Bxc6 14.
Qc2 Bb6 15. Bg5 Qe6 16. Qc3 Nf6 17. Bxf6 Qxf6 18. Ne5 O-O 19. Bxc6 bxc6 20.
Qb3+ Kh8 21. Nd7 Bxf2+ 22. Kg2 {Gelpke,P (2240)-Chapman,M (2250) London 1980
1-0}) 8. O-O h6 {White has a cramped position} 9. Nbd2 O-O-O 10. a3 {White has
a cramped position. White's piece can't move: c1} Qe6 (10... Nge7 $5 $16) 11.
b4 Nf6 12. Re1 h5 13. h4 (13. Ng5 Qd7 14. Ndf3 Qe8 $18) 13... Ne7 (13... Qf7 $5
$16) 14. Ng5 $18 Qg8 15. Qa4 Kb8 16. Qb5 (16. Bb2 Bd7 17. Qb3 Be6 $18) 16... c6
(16... Bc8 17. Bb2 $16) 17. Qe5+ $18 Kc8 $2 (17... Ka8 18. Qa5 Rd7 $18) 18. Qa5
a6 (18... Rd7 {doesn't change anything anymore} 19. Qxa7 Kc7 20. Qa5+ Kb8 21.
f3 $18) 19. b5 Nd7 (19... Kd7 {hoping against hope} 20. Ndf3 Ke8 $18) 20. bxc6
Nxc6 21. Bxc6 bxc6 (21... Nc5 {what else?} 22. Rb1 Rh6 23. Bxb7+ Nxb7 24. Rxb7
Kxb7 25. Qxd8 Rd6 $18) 22. Qxa6+ Kc7 23. Qa7+ (23. Nde4 Nc5 24. Qa7+ Nb7 25.
Bf4+ Kd7 26. Qxb7+ Ke8 27. Qxc6+ Ke7 28. Bd6+ Rxd6 29. Qxd6+ Ke8 30. Qb8+ Kd7
31. Reb1 Bb4 32. Qb7+ Kd8 33. axb4 Bc8 34. Ra8 Qxc4 35. Nc5 Qc1+ 36. Rxc1 Rh6
37. Rxc8#) 23... Kc8 (23... Kd6 {praying for a miracle} 24. Qxd4+ Ke7 25. Qe3+
Be6 $18) 24. Rb1 Re8 25. Qa8+ (25. Qa8+ Kc7 26. Rb7+ Kd6 27. Qxe8 Be7 28. Nde4+
Ke5 29. Qg6 Qxc4 30. Bf4+ Kd5 31. Qf7+ Be6 32. Qxe6#) 1-0

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "2.2"]
[White "Manabe, Hiroaki"]
[Black "Yamanouchi, Kento"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "1760"]
[BlackElo "1996"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "64"]

{B34: Sicilian: Accelerated Dragon with 5 Nc3: sidelines} 1. e4 c5 2. Nf3 g6 3.
d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. Be3 Nf6 7. f3 O-O 8. Qd2 d5 9. Nxc6 bxc6 10.
exd5 Nxd5 11. Nxd5 cxd5 12. c3 e5 13. Rd1 (13. O-O-O Bb7 14. Be2 Qa5 15. Kb1
Rfd8 16. c4 Qa4 17. b3 Qe8 18. cxd5 Bxd5 19. Qa5 Bc6 20. Rxd8 Rxd8 21. Rd1
Rxd1+ 22. Bxd1 e4 23. f4 Qd7 24. Be2 Bd4 25. Qd2 Bb6 26. Qxd7 Bxd7 27. Bxb6
axb6 {Vinogradov,A (2435)-Kretov,E (2182) Rybinsk 2008 1-0 (73)}) 13... Bb7 14.
Be2 Qh4+ 15. g3 $146 (15. Bf2 Qa4 16. O-O Rfe8 17. Kh1 Qc6 18. Rfe1 Rad8 19.
Bf1 h6 20. Qc2 a6 21. Qb3 Re6 22. Rd2 Rde8 23. Qd1 Kh7 24. Rde2 f5 25. f4 exf4
26. Rxe6 Rxe6 27. Rxe6 Qxe6 28. Bd4 g5 29. b4 Kg6 {Sorri,K (2305)-Raaste,E 
(2380) Helsinki 1990 1/2-1/2 (31)}) (15. Bf2 $142 $5 {looks like a viable
alternative} Qa4 16. O-O $11) 15... Qh3 $17 16. Bf1 (16. Kf2 Rfe8 $17) 16...
Qe6 17. Kf2 Rad8 (17... Rfe8 $5 $17) 18. Bc5 $15 {White threatens to win
material: Bc5xf8} Rfe8 19. Bb5 Bc6 20. Bxc6 {White forks: d5+e8} Qxc6 21. b4 a5
22. Rhe1 axb4 23. cxb4 d4 {Black gains space} 24. Rc1 (24. Qd3 Bh6 25. Kg2 Ra8
$15) 24... Qd5 25. a4 f5 {[%cal Ye5e4] Black intends e4} 26. Ra1 $2 (26. Qd3
$142 $15 {is a viable option}) 26... e4 $19 {[%cal Yd4d3] Black prepares the
advance d3} 27. Qa2 (27. fxe4 $142 fxe4 28. Kg1 $19) 27... d3 (27... e3+ $142 {
and Black is on the road to success} 28. Kg2 d3 29. Rxe3 Qxa2+ 30. Rxa2 Bc3 $19
) 28. Qxd5+ $17 Rxd5 29. Ra2 $4 {leads to further unpleasantness} (29. fxe4
fxe4 30. Rab1 Rxc5 31. bxc5 Bd4+ 32. Kg2 $17) 29... Bc3 $19 30. Rd1 (30. fxe4
fxe4 31. Re3 Rxc5 32. bxc5 $19) 30... Rxc5 $1 {the knock-out blow} 31. bxc5 (
31. fxe4 fxe4 32. Ke3 Rf5 33. Rxd3 exd3+ 34. Kxd3 Rf3+ 35. Kc4 Re4+ 36. Kd5
Rd4+ 37. Kc6 Rf6+ 38. Kc5 Rf5+ 39. Kc6 Rc4+ 40. Kb7 Rxb4+ 41. Kc6 Rc4+ 42. Kb7
Rf1 43. Rb2 Bxb2 44. Ka6 Rb4 45. Ka5 Bc3 46. Ka6 Rfb1 47. a5 Ra4 48. h3 Rxa5#)
31... e3+ 32. Kf1 (32. Kg2 {is still a small chance} e2 33. Rxd3 $19) 32... e2+
(32... e2+ 33. Kg2 exd1=Q 34. Rf2 Bd4 35. g4 Bxf2 36. Kxf2 Qe1+ 37. Kg2 Re2+
38. Kh3 g5 39. gxf5 Qh4#) 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "2.3"]
[White "Nakamura, Mitsuru"]
[Black "Nishimori, Toshiyuki"]
[Result "0-1"]
[ECO "B90"]
[BlackElo "1768"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "72"]

{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. Be2 Nc6 7. Be3 Qc7 $146 (7...
g6 8. Nd5 Nxd5 9. exd5 Qa5+ 10. c3 Qxd5 (10... Ne5 11. Qb3 Bg7 12. O-O O-O 13.
Rfe1 Re8 14. h3 Nd7 15. a4 Nc5 16. Qc4 Qd8 17. a5 Bd7 18. b4 Ne4 19. Qd3 Bf5
20. Nxf5 gxf5 21. Rac1 e6 22. Bf3 Qh4 23. c4 Be5 24. c5 Rad8 25. c6 {Svidler,P
(2739)-Yu,Y (2672) Ningbo 2011 1/2-1/2 (68)}) 11. Bf3 Qc4 12. Nxc6 bxc6 13. Qd4
Qxd4 14. Bxd4 Bd7 15. Bxh8 f6 16. h4 h5 17. g4 hxg4 18. Be4 Bh6 19. Bxg6+ Kf8
20. Rd1 Bf4 21. Rg1 Kg8 22. Bxf6 {Ghinda,M (2430)-Lechtynsky,J (2445) Budapest
1986 1-0 (51)}) (7... Bd7 8. f3 e6 9. Qd2 Rc8 10. g4 h6 11. O-O-O Ne5 12. h4
Nc4 13. Bxc4 Rxc4 14. g5 Nh5 15. Rhg1 hxg5 16. hxg5 g6 17. f4 Bg7 18. Nde2 Bc6
19. b3 Rb4 20. Qxd6 Qxd6 21. Rxd6 Rxe4 22. Nxe4 {Ascic,P (2297)-Kruskic,M 
(2162) Zupanja 2011 1-0 (55)}) (7... Nxd4 8. Qxd4 e5 9. Qd3 (9. Qd2 Be6 10.
O-O-O Rc8 11. f3 Be7 12. g4 O-O 13. Kb1 b5 14. a3 Qc7 15. g5 Nh5 16. Rc1 Qb7
17. Rhd1 Nf4 18. Bxf4 exf4 19. h4 Qb6 20. Bd3 Rfe8 21. Ne2 Qf2 22. Nxf4 Qxf3
23. Rg1 Bh3 {Marjanovic,S (2490)-Anastasian,A (2475) Yerevan 1989 1-0 (40)})
9... Be7 10. a4 Be6 11. a5 d5 12. Bb6 dxe4 13. Bxd8 exd3 14. Bxe7 Kxe7 15. Bxd3
Nd5 16. Nxd5+ Bxd5 17. O-O Rac8 18. Rfe1 Kf6 19. Ra4 Rhd8 20. h4 h6 21. Rb4 Rd6
22. c3 {Psakhis,L (2550)-Anastasian,A (2445) Yerevan 1988 1/2-1/2 (33)}) (7...
e5 8. Nb3 $14) 8. Qd2 {Black's piece can't move: f8} Bd7 (8... Nxd4 9. Qxd4 e5
10. Qa4+ Bd7 11. Bb5 $11) 9. a3 {Secures b4} (9. Nd5 Nxd5 10. exd5 Ne5 $14)
9... g6 {Prevents intrusion on f5+h5} 10. h3 {White has a very active position}
Bg7 11. O-O-O Na5 12. Kb1 b5 {White has an active position} 13. Bf4 (13. Bg5
$142 $5 {is noteworthy} Nc4 14. Bxc4 Qxc4 15. f4 $14) 13... e5 $15 14. Nd5 $4 (
14. Bh6 $142 {had to be tried to avoid defeat} Bxh6 15. Qxh6 exd4 16. Rxd4 $15)
14... Nxd5 $19 15. exd5 exd4 (15... exf4 {might be the shorter path} 16. Bg4
O-O 17. Qxf4 $19) 16. Rhe1 (16. Bh6 O-O 17. Bxg7 Kxg7 18. Qxd4+ Kg8 19. Rd3 $19
) 16... O-O 17. Bh6 Nc4 18. Qf4 (18. Bxc4 {the only chance to get some
counterplay} Bxh6 19. Qxh6 Qxc4 20. Re4 $19) 18... Be5 19. Qc1 Rfc8 (19... d3
$142 {makes it even easier for Black} 20. Rxd3 Nxb2 21. Rb3 $19) 20. h4 (20.
Bd3 {does not solve anything} b4 $1 {Decoy: b4} 21. axb4 Rab8 $19) 20... Bf5 (
20... Nxb2 $142 {seems even better} 21. Qxb2 d3 $19) 21. Ka2 (21. Bd3 {
desperation} Bxd3 22. Rxd3 $19) 21... Nb6 (21... d3 $142 {and Black takes home
the point} 22. Rxd3 Bxd3 23. cxd3 Bxb2 24. dxc4 Bxc1 25. Bxc1 bxc4 $19) 22. Bd3
(22. Rd2 {is no salvation} Bxc2 23. Ka1 d3 24. Bxd3 Bxd3 25. Rxd3 Nc4 $19)
22... Bxd3 23. cxd3 Nxd5 (23... Qb7 {keeps an even firmer grip} 24. Qd2 Nxd5
25. g3 $19) 24. Qd2 (24. Qxc7 {doesn't do any good} Rxc7 25. Kb3 a5 $19) 24...
Qd7 (24... b4 $142 {and Black can already relax} 25. Rc1 Qd7 $19) 25. Qg5 (25.
f4 {there is nothing better in the position} Bf6 26. Rc1 Bxh4 27. Re4 $19)
25... Qe6 26. Ka1 f6 (26... Nb4 27. axb4 a5 28. Kb1 axb4 29. Qd8+ Rxd8 30. Kc2
b3+ 31. Kd2 Rdc8 32. Ke2 Qg4+ 33. Kf1 Qxh4 34. Bd2 Ra2 35. g3 Qh1+ 36. Ke2 Qh5+
37. Kf1 Qf3 38. Kg1 Rxb2 39. Re2 Qxe2 40. Re1 Qxd2 41. Rf1 Rc1 42. Kg2 Rxf1 43.
Kf3 Qxf2+ 44. Kg4 Qxg3#) 27. Qd2 Qf5 (27... b4 $142 {it becomes clear that
Black will call all the shots} 28. b3 $19) 28. g3 Qf3 29. Qe2 Qxe2 30. Rxe2 f5
31. f4 (31. Kb1 {is not the saving move} Kf7 $19) 31... Bg7 32. Bxg7 Kxg7 33.
Re6 Ne3 34. Rg1 Rc6 35. Ka2 (35. Re7+ {does not win a prize} Kh6 $19) 35... Ra7
(35... Kf7 $142 $19 {finishes off the opponent}) 36. Rh1 (36. Re8 {no good,
but what else?} Rc2 37. Rh1 $19) 36... a5 (36... a5 37. h5 Rac7 $19) 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "2.4"]
[White "Ito, Katsuhide"]
[Black "Watanabe, Katsumi"]
[Result "0-1"]
[ECO "C72"]
[WhiteElo "1449"]
[BlackElo "1612"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "68"]

{C72: Ruy Lopez: Deferred Steinitz: 5 0-0} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4
d6 5. c3 Bd7 6. O-O Nf6 7. Bc2 Be7 8. d4 O-O 9. d5 Na5 10. Nbd2 b5 11. Re1 h6
$146 {Consolidates g5} (11... c5 12. dxc6 Nxc6 13. Nf1 Re8 14. Bg5 Ng4 15. Qd2
Na5 16. b3 Qc7 17. Bxe7 Rxe7 18. Rac1 Rc8 19. Red1 Nb7 20. Bb1 Qb6 21. h3 Nf6
22. Ne3 h6 23. Nh4 g6 24. c4 b4 25. Qe2 Ree8 26. Nf3 {Kovalevskaya,E (2486)
-Obukhov,A (2444) Samara 2002 0-1 (74)}) 12. h3 {Covers g4} Nb7 13. Nf1 a5 14.
Be3 Nh7 (14... c6 15. Nh4 $11) 15. Ng3 $14 Ng5 16. Nh4 $4 {allows the opponent
back into the game} (16. Nd2 $142 $14 {would keep White alive}) 16... Nxh3+ $1
$17 {Discovered attack: g5, Be7xh4} 17. gxh3 Bxh4 18. Nf5 Bg5 19. Qg4 $2 (19.
Qd2 $142 $5 $17) 19... g6 $19 20. Bxg5 gxf5 $4 {hands over the advantage to
the opponent} (20... hxg5 $142 21. h4 gxf5 22. exf5 f6 $19) 21. exf5 $4 (21.
Bxd8+ $142 {this is the best way to fight back} fxg4 22. Bf6 $11) 21... Qxg5
$19 22. Kh2 f6 23. Rg1 Kf7 24. h4 (24. Rg3 {a fruitless try to alter the
course of the game} Nc5 $19) 24... Qxg4 25. Rxg4 Rg8 26. Rg6 Nc5 (26... Rxg6
$142 {and Black can already relax} 27. fxg6+ Kg7 28. Kg3 $19) 27. Rag1 (27.
Rxh6 {is not much help} e4 28. Rh7+ Rg7 29. Rxg7+ Kxg7 $19) 27... e4 28. Rxh6 (
28. Rxg8 {a last effort to resist the inevitable} Rxg8 29. b4 Rxg1 30. Kxg1
axb4 31. cxb4 $19) 28... Rxg1 29. Rh7+ (29. Kxg1 {is one last hope} Bxf5 30.
Rh5 $19) 29... Rg7 30. Rh6 Bxf5 31. b4 axb4 (31... Rag8 32. Rg6 Rxg6 33. Bxe4
Nxe4 34. bxa5 Rg2+ 35. Kh1 Nxf2#) 32. cxb4 Nd3 (32... Rag8 33. Rg6 Rxg6 34. Bd1
Rg2+ 35. Kh1 Rg1+ 36. Kh2 R8g2#) 33. Bd1 Rxa2 34. Bh5+ (34. Rg6 {does not
improve anything} Rxf2+ 35. Kh1 Kxg6 36. Bh5+ Kh6 37. Bg6 Bxg6 38. h5 Kxh5 39.
Kg1 e3 40. Kh1 Be4#) 34... Ke7 (34... Ke7 35. Rxf6 Rxf2+ 36. Kh1 Kxf6 37. Bg6
Rxg6 38. h5 Rg4 39. h6 e3 40. h7 Be4#) 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "2.5"]
[White "Kanamaru, Tomoji"]
[Black "Yamamoto, Eisei"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "1586"]
[BlackElo "1554"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "59"]

{B12: Caro-Kann: Advance Variation} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5.
Be2 c5 6. c3 Ne7 7. O-O Nec6 8. Be3 Nd7 9. h3 $146 {Prevents intrusion on g4} (
9. a3 a5 (9... c4 10. Nbd2 b5 11. Ne1 h5 12. g3 Bh3 13. Ng2 g6 14. Re1 Bxg2 15.
Kxg2 Rb8 16. h3 a5 17. Nf3 Be7 18. Qd2 Nb6 19. Ng5 Kf8 20. g4 hxg4 21. hxg4 Kg7
22. Rh1 Qd7 23. Bf4 Rbf8 24. Qe3 {Short,N (2635)-Ljubojevic,L (2590) Amsterdam
1991 1-0 (43)}) 10. Bd3 Bxd3 11. Qxd3 Be7 12. Nbd2 O-O 13. Rfe1 Re8 14. g3 Qc7
15. h4 b5 16. h5 a4 17. h6 g6 18. Bg5 Bf8 19. Nf1 b4 20. cxb4 cxb4 21. N1h2
bxa3 22. bxa3 Reb8 23. Rec1 Nb6 {Cole,J (2323)-Mills,J (2163) Indianapolis
2006 1-0 (52)}) (9. Nbd2 Be7 (9... Rc8 10. a3 Be7 11. b4 cxd4 12. cxd4 O-O 13.
Rc1 Qb6 14. Nb3 Bg4 15. Qd2 Bxf3 16. gxf3 Ncb8 17. f4 g6 18. Rc2 Rxc2 19. Qxc2
Qc6 20. Qd3 Qa4 21. Na5 Nb6 22. Rc1 Qd7 23. Qb5 Nc6 24. Nxc6 {Karthikeyan,M 
(2509)-Tari,A (2518) Khanty-Mansiysk 2015 1/2-1/2 (52)}) (9... cxd4 10. cxd4
Be7 11. a3 O-O 12. b4 a6 13. Rc1 a5 14. b5 Na7 15. a4 Rc8 16. Qb3 b6 17. Qb2 h6
18. Rxc8 Qxc8 19. Rc1 Qb7 20. Ne1 Rc8 21. Nd3 Rxc1+ 22. Qxc1 Qc8 23. Qb2 h5 24.
g3 {Cheparinov,I (2673)-Bulmaga,I (2370) Golden Sands 2012 1-0 (40)}) 10. dxc5
Nxc5 11. Nb3 Nd7 12. Nfd4 Ndxe5 13. Nxf5 exf5 14. Nd4 Qd7 15. Nxc6 Nxc6 16. Qb3
d4 17. Rad1 O-O 18. Bxd4 Nxd4 19. Rxd4 Qc7 20. Bf3 Bc5 21. Rd5 g6 22. Qb5 Bd6
23. g3 Rad8 {Sjugirov,S (2643)-Maletin,P (2584) Olginka 2011 1/2-1/2 (56)})
9... Be7 10. Re1 O-O 11. Nbd2 Rc8 12. Nf1 cxd4 13. cxd4 (13. Nxd4 $5 {is
interesting} Bg6 14. f4 $11) 13... Nb4 $17 14. Ng3 Bg6 15. Rf1 Nc2 16. Rc1 Qb6
17. Bf4 Rc6 18. Bd3 (18. h4 h6 19. h5 $17) 18... Rfc8 (18... Nxd4 $142 $5 19.
Rxc6 Nxc6 20. Bxg6 fxg6 $19) 19. Bxg6 $15 hxg6 20. Rb1 Rc4 {[%cal Rb6d4,Rc2d4,
Rc4d4,Gd1d4,Gf3d4] Can d4 get defended?} (20... Qa5 21. a3 $11) 21. Ne2 Nb8 (
21... a6 22. Bd2 $11) 22. Bd2 Nc6 $4 {[%cal Rb6d4,Rc2d4,Rc4d4,Rc6d4,Ge2d4,
Gf3d4] Pawn d4, live or die!} (22... a6 $5 $11) 23. Bc3 $4 {White is ruining
his position} (23. b3 {keeps an even firmer grip} N2xd4 24. bxc4 Nxf3+ 25. gxf3
Qa6 26. cxd5 Nxe5 $18) 23... Qa6 $2 (23... N2b4 24. a3 Na2 $16) 24. Qxc2 $18
Nb4 25. Qd2 Qb6 (25... Nxa2 26. Ra1 Ra4 27. Qd1 $18) 26. a3 Nc6 (26... Na2 27.
Qd3 Nxc3 28. Nxc3 $18) 27. Rfc1 f6 (27... Ra4 $18 {there is nothing else anyway
}) 28. b3 Bxa3 (28... Rxc3 {otherwise it's curtains at once} 29. Rxc3 g5 $18)
29. bxc4 Bxc1 30. Qxc1 (30. Qxc1 Qa6 31. exf6 $18) 1-0

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "3.1"]
[White "Yamanouchi, Kento"]
[Black "Sugimoto, Koichi"]
[Result "1/2-1/2"]
[ECO "D04"]
[WhiteElo "1996"]
[BlackElo "2040"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "78"]

{D04: Colle System} 1. Nf3 d5 2. b3 Nf6 3. Bb2 g6 4. e3 Bg7 5. Be2 O-O 6. d4 (
6. c4 e6 7. O-O b6 8. Nc3 Bb7 9. Qc2 Nbd7 10. Rac1 a6 11. Rfd1 dxc4 12. bxc4 c5
13. a4 Qc7 14. Ne1 Ne5 15. h3 Nc6 16. d3 Rfd8 17. Ba3 Ne8 18. Rb1 Rab8 19. Bf3
Nd6 20. Ne2 Nf5 {Maghsoodloo,P (2321)-Shimanov,A (2624) Baku 2014 1/2-1/2})
6... c5 7. dxc5 $146 (7. O-O Ne4 8. Nbd2 Nc6 9. c4 Bf5 10. Rc1 cxd4 11. Nxe4 d3
12. Nc3 dxc4 13. e4 Bxe4 14. Nxe4 Bxb2 15. Rxc4 dxe2 16. Qxe2 Bg7 17. Rd1 Qb6
18. Nc5 Rad8 19. Rdc1 Rd6 20. h4 Rfd8 21. h5 gxh5 {Gonzalez Rodriguez,J (2365)
-Garcia Ilundain,D (2495) Barcelona 1998 0-1 (32)}) 7... Qa5+ {Black forks: c5}
8. Nbd2 Qxc5 9. O-O Nc6 10. c4 Rd8 11. Rc1 Qa5 12. a4 (12. a3 dxc4 13. b4 Qf5
14. Rxc4 Be6 $11) 12... dxc4 13. Rxc4 (13. Bc3 Qf5 $11) 13... Be6 $15 {Black
threatens to win material: Be6xc4} 14. Bc3 {White threatens to win material:
Bc3xa5} Qb6 (14... Qc7 15. Rh4 $15) 15. Rh4 $11 h6 {Secures g5} 16. Nd4 (16.
Qa1 Qc7 17. Ne4 g5 18. Bxf6 exf6 19. Rxh6 Bxh6 20. Nxf6+ Kf8 21. Nh7+ Kg8 22.
Nf6+ Kf8 23. Nh7+ Kg8 24. Nf6+ $11) 16... Bd5 (16... Nd5 $142 $5 17. Bb2 Nxd4
18. exd4 Bf6 $17) 17. Qa1 $11 Nxd4 {Black forks: b3+e2} 18. Rxd4 Qc6 19. Rc1
Rac8 20. Bb2 Qe6 21. Rxc8 Rxc8 22. Bc4 Bxc4 23. Rxc4 Rd8 {Black threatens to
win material: Rd8xd2} 24. Nf3 Qb6 25. b4 Kh7 26. h3 {Controls g4} Qd6 27. Rd4
Qc7 28. Rxd8 Qxd8 29. Bd4 a6 30. b5 {White wins space} Ne8 31. Bxg7 Nxg7 32.
bxa6 bxa6 33. Qd4 {White threatens to win material: Qd4xd8} Qc7 34. Qb2 a5 35.
Nd4 Qc4 36. Qc2 Qxc2 37. Nxc2 {A knight endgame occured} Ne6 38. Na3 Nc5 {
Black threatens to win material: Nc5xa4} 39. Nc4 Nxa4 1/2-1/2

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "3.2"]
[White "Nishimori, Toshiyuki"]
[Black "Manabe, Hiroaki"]
[Result "1-0"]
[ECO "E30"]
[WhiteElo "1768"]
[BlackElo "1760"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "73"]

{E30: Nimzo-Indian: Leningrad Variation} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3
Bxc3+ 5. bxc3 c5 6. Bg5 (6. e4 Qa5 7. e5 Ne4 8. Bd2 cxd4 9. cxd4 Qxd2+ 10. Qxd2
Nxd2 11. Kxd2 Nc6 12. Nf3 Na5 13. Ke3 b6 {1/2-1/2 (13) Horvath,G (2431)
-Meszaros,T (2352) Austria 2007}) 6... Qa5 $146 {Black threatens to win
material: Qa5xc3} (6... h6 7. Bxf6 Qxf6 8. Nf3 Nc6 9. e3 O-O 10. Bd3 e5 11. O-O
d6 12. d5 Ne7 13. Nd2 Ng6 14. Qc2 Bd7 15. a4 Be8 16. Rae1 Qe7 17. f4 exf4 18.
exf4 Qd7 19. Ra1 a5 20. g3 Qc7 21. Nf3 {Julve,P (2235)-Boutroy,A (2210) France
1997 1-0}) 7. Qc2 Ne4 {Black threatens to win material: Ne4xg5. Black forks:
c3+g5} 8. Bd2 d5 9. e3 Nc6 10. Nf3 O-O 11. Bd3 f5 12. O-O Bd7 13. Rfb1 {
White threatens to win material: Rb1xb7} Qc7 14. Rb2 (14. cxd5 exd5 15. c4 Be6
$14) 14... Na5 $11 {Black threatens to win material: Na5xc4} 15. Ne5 {Here
comes the goal-getter} Rac8 (15... Nxd2 16. Qxd2 dxc4 17. Bxc4 Nxc4 18. Nxc4
cxd4 19. Qxd4 $11) 16. f3 (16. cxd5 $5 exd5 17. Be1 $11) 16... Nxd2 $15 17.
Qxd2 cxd4 18. exd4 dxc4 19. Be2 $2 (19. Bc2 $142 $5 $15 {is the best option
White has}) 19... Nb3 $17 20. Qd1 Nxa1 21. Qxa1 b5 22. f4 (22. a4 a6 $17) 22...
Bc6 23. Qe1 Qa5 24. Ra2 Rfd8 25. Qg3 (25. Bh5 $142 Be8 26. Bxe8 Rxe8 27. h3 $19
) 25... Be4 26. Bh5 Rc7 27. h3 $2 (27. Qh4 Rd6 28. Bg6 hxg6 29. Nxg6 $19) 27...
Bd3 $1 {Decoy: c3} 28. Qg5 (28. Nxd3 cxd3 {Passed pawn Discovered attack} (
28... Qxc3 {Interception Decoy})) 28... Rdc8 29. Rb2 (29. d5 {otherwise it's
curtains at once} exd5 30. Bf3 Qxc3 31. Bxd5+ Kf8 32. Be6 $19) 29... a6 30. d5
(30. Qh4 {doesn't get the bull off the ice} Qxc3 31. Qf2 Rd8 $19) 30... exd5 (
30... Qxc3 $142 {makes it even easier for Black} 31. Nxd3 Qd4+ 32. Nf2 Qxb2 33.
dxe6 $19) 31. Bf3 Be4 32. Bxe4 dxe4 (32... fxe4 $142 {keeps an even firmer grip
} 33. Rd2 Qxc3 34. Rxd5 $19) 33. Rd2 (33. Qxf5 Qxa3 34. Qe6+ Kh8 35. Kh2 $19)
33... Rb7 (33... Rf8 $142 $19 {and Black can celebrate victory}) 34. Qxf5 Qb6+
(34... Rf8 $5 35. Qxe4 Qxa3 36. Kh2 $19) 35. Kh2 $17 Rd8 $4 {forfeits the
clear win} (35... Rbc7 $142 $17) 36. Qe6+ $3 $18 {Deflection: d8} Qxe6 (36...
Kf8 {praying for a miracle} 37. Qxb6 Rxb6 38. Rxd8+ Ke7 39. Rd7+ Kf8 $18) 37.
Rxd8+ (37. Rxd8+ Qe8 38. Rxe8#) 1-0

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "3.3"]
[White "Sato, Yasuji"]
[Black "Kanamaru, Tomoji"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1630"]
[BlackElo "1586"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "94"]

{C02: French: Advance Variation} 1. e4 e6 2. Nf3 d5 3. e5 c5 4. c3 Nc6 5. d4
Bd7 6. Bd3 Qb6 7. Qc2 $146 (7. O-O f6 (7... a5 8. Nbd2 cxd4 9. Nb3 Nge7 10.
cxd4 Ng6 11. a4 Nb4 12. h4 Nxd3 13. Qxd3 h6 14. h5 Ne7 15. Nc5 Nc6 16. Be3 Bxc5
17. dxc5 Qb4 18. Bd4 O-O 19. Ra3 Nxd4 20. Qxd4 Rfc8 21. Rc3 Qxb2 22. Qd3 {
Pirrot,D (2422)-Al Modiahki,M (2550) Bad Wiessee 2006 0-1 (39)}) (7... Nge7 8.
Na3 cxd4 9. cxd4 Nb4 10. Be2 Rc8 11. Bd2 Nf5 12. Bxb4 Bxb4 13. Nc2 Be7 14. b3
O-O 15. Bd3 Bb5 16. Qe2 Bxd3 17. Qxd3 Rc7 18. Ne3 Nxe3 19. Qxe3 Rfc8 20. Rac1
Ba3 21. Rxc7 Qxc7 22. Qd3 {Dimitrov,P (2329)-Danov,L (2226) Plovdiv 2014 0-1 
(55)}) (7... Rc8 8. dxc5 Bxc5 9. b4 Bf8 (9... Be7 10. a3 Nh6 11. Be3 Qc7 12.
Bd4 Nxd4 13. cxd4 O-O 14. Nbd2 Qb6 15. Nb3 Ba4 16. Qb1 Bxb3 17. Qxb3 Rc7 18.
Rac1 Rfc8 19. Qb1 g6 20. Rxc7 Qxc7 21. Nd2 a5 22. bxa5 Bxa3 23. Qb5 Nf5 24.
Bxf5 {Pacorro,F (2200)-Rivas Pastor,M (2520) Ceuta 1992 1/2-1/2 (36)}) 10. a4
Qc7 11. Qe2 g6 12. Na3 Qb8 13. Re1 Be7 14. Bg5 Nxe5 15. Nxe5 Bxg5 16. Nxd7 Kxd7
17. c4 d4 18. Qe4 Ke7 19. Rad1 Rd8 20. Nc2 Nf6 21. Qf3 Rd7 22. c5 {Szuk,B 
(2310)-Ezsol,M (2325) Gyor 1992 0-1 (48)}) 8. Re1 c4 9. Bc2 O-O-O 10. b3 cxb3
11. axb3 fxe5 12. Nxe5 Nxe5 13. Rxe5 Bd6 14. Rg5 g6 15. c4 Bb8 16. cxd5 exd5
17. Rxd5 Nf6 18. Rc5+ Bc6 19. Bg5 Qxc5 20. dxc5 Rxd1+ 21. Bxd1 Re8 {Klauner,T 
(2200)-Baptista,P (2200) Graz 1978 1-0 (41)}) (7. dxc5 Bxc5 8. O-O Qc7 $11)
7... h6 {Secures g5} (7... cxd4 8. Qe2 $15) 8. Na3 (8. dxc5 Qc7 9. Bf4 Bxc5 $11
) 8... Rc8 (8... cxd4 9. Rb1 a6 $15) 9. Be3 $2 (9. dxc5 $142 $5 {and White
hangs on} Bxc5 10. O-O Bxa3 11. bxa3 $11) 9... cxd4 $17 10. Nxd4 (10. Bxd4 Nxd4
11. Nxd4 Bxa3 12. bxa3 Qc7 $17) 10... Nxe5 (10... Nb4 $5 11. cxb4 Bxb4+ 12. Ke2
Rxc2+ 13. Naxc2 $19) 11. Be2 Bc5 12. O-O Nf6 13. Qb3 Qc7 (13... Neg4 14. Qxb6
Bxb6 15. Bc1 $17) 14. Bb5 (14. Ndb5 Qb8 15. Bxc5 Rxc5 $17) 14... O-O 15. Bxd7
Qxd7 16. Nac2 (16. Ndc2 Ne4 17. Rad1 Rc6 $17) 16... a6 17. Ne1 Neg4 (17... Nc4
18. Nd3 Bd6 19. h3 $19) 18. Nd3 $17 Nxe3 19. Nxc5 Rxc5 20. fxe3 e5 21. Nf5 Ne4
22. Qc2 (22. Qd1 Kh7 23. Qh5 $17) 22... Rc6 (22... g6 $142 $5 23. Nh4 Qd6 $17)
23. Rad1 $11 Ng5 (23... Qe6 24. Rxd5 Nf6 25. e4 $15) 24. e4 (24. Rxd5 $142 $1
Qe6 25. Qd1 $16) 24... d4 $11 {This push gains space} 25. c4 $2 (25. Qd3 $142
$5 $11 {must be considered}) 25... Rf6 (25... b5 26. c5 a5 27. Rd3 $17) 26. Qd3
Kh8 27. h4 Ne6 28. b3 Nf4 (28... Rg6 29. Qf3 $17) 29. Qf3 (29. Rxf4 exf4 30.
Qxd4 Qe6 $17) 29... Rg6 30. g3 Ne6 31. Kh2 Rf6 32. Qh5 Qc6 {Black threatens to
win material: Qc6xe4} (32... Re8 $142 $5 $17) 33. Ne7 $15 {White threatens to
win material: Ne7xc6} Qxe4 $4 {there were better ways to keep up the pressure}
(33... Qe8 $142 {the rescuing straw} 34. Rxf6 Qxe7 $15) 34. Rxf6 $18 Qc2+ 35.
Kh3 gxf6 36. Qxh6+ Qh7 37. Qxf6+ Qg7 38. Rf1 (38. Qf5 $142 e4 39. Rf1 $16)
38... Qxf6 $11 {Black forks: e7+f1} 39. Rxf6 Kg7 {Black threatens to win
material: Kg7xf6} 40. Rf5 (40. Rf1 d3 41. Nf5+ Kg6 $11) 40... f6 41. h5 $2 (41.
Kg4 d3 42. Rf1 e4 $15) 41... Ng5+ (41... d3 42. Rf1 Nd4 43. g4 $19) 42. Kg4 (
42. Kg2 $142 $17) 42... e4 $4 {letting the wind out of his own sails} (42... d3
$142 43. Rf1 Ne4 $19) 43. Kf4 $4 {gives away a clear win} (43. Rd5 $142 {
White clearly has the better chances} d3 44. Nf5+ Kh7 45. Kf4 $18) 43... e3 $19
44. Rd5 (44. Ng6 {is still a small chance} e2 45. Nxf8 $19) 44... e2 45. Rd7
e1=Q 46. Nf5+ (46. h6+ {cannot change what is in store for ?} Kh7 47. Nf5+ Rf7
48. Rxf7+ Nxf7 49. Ne7 Ng5 50. Kg4 Qxe7 51. Kh4 Qe6 52. g4 Qe1+ 53. Kh5 Qh1#)
46... Kh8 47. Nxd4 (47. Re7 {hardly improves anything} Qf2+ 48. Kg4 Qf3+ 49.
Kh4 Qxf5 50. Rh7+ Kxh7 51. g4 Qf2#) 47... Qe4# 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "3.4"]
[White "Watanabe, Katsumi"]
[Black "Nakamura, Mitsuru"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "1612"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "97"]

{B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7} 1. e4 c5 2. Nf3 d6
3. Bb5+ Nc6 4. O-O Nf6 5. e5 Nd5 (5... Nd7 6. exd6 e6 7. d4 Bxd6 8. d5 exd5 9.
Qxd5 Be7 10. Bf4 Nb4 11. Qb3 a6 12. Ne5 O-O 13. Bxd7 Bxd7 14. Rd1 Be6 15. Rxd8
Rfxd8 16. c4 f6 17. Nf3 Rd3 18. Nc3 b5 19. Nd2 Rad8 20. Re1 {Andreikin,D (2625)
-Dovzik,J (2366) Alushta 2009 1-0}) (5... dxe5 6. Nxe5 Bd7 7. Nxc6 Bxc6 8.
Bxc6+ bxc6 9. d3 e6 10. Qe2 Bd6 11. Nc3 O-O 12. Ne4 Be7 13. Nxf6+ Bxf6 14. Rb1
Qa5 15. a3 Rab8 16. b3 Bc3 17. a4 e5 18. Qe4 Qc7 19. Qc4 Qa5 20. Rd1 {Lewtak,D
(2265)-Cukrowski,F (2186) Olsztyn 2013 1-0 (93)}) 6. c4 $146 {White threatens
to win material: c4xd5} (6. d4 Qb6 (6... Nc7 7. Bxc6+ bxc6 8. dxc5 Ba6 9. Re1
dxc5 10. Nbd2 Qd5 11. b3 c4 12. bxc4 Bxc4 13. Re4 Ba6 14. c4 Qd7 15. Ba3 Ne6
16. Qa4 Bb7 17. Nb3 c5 18. Qxd7+ Kxd7 19. Rd1+ Ke8 20. Re3 Ba6 21. Bxc5 {
Koziak,V (2489)-Tazbir,M (2444) Karpacz 2008 1/2-1/2 (39)}) 7. c4 Nc7 8. exd6
Nxb5 9. dxc5 Qxc5 10. cxb5 Qxb5 11. Nc3 Qa5 12. Nd5 exd6 13. Re1+ Be6 14. Ng5
Kd7 15. Nf4 Nd8 16. Nfxe6 fxe6 17. Bd2 Qd5 18. Qe2 Rc8 19. Rad1 Rc2 20. Qe3 Qc5
{De Jong,T (2345)-Pliester,L (2400) Wijk aan Zee 1991 1-0 (38)}) (6. Bxc6+ bxc6
7. b3 Bg4 8. Bb2 dxe5 9. Bxe5 f6 10. Bb2 e5 11. d3 Be7 12. Nbd2 O-O 13. a4 g5
14. a5 Rb8 15. Ra4 Rb4 16. Qa1 Qd7 17. c3 Rxa4 18. Qxa4 Nf4 19. d4 e4 20. Nxe4
Bxf3 {Schweiger,G (2245)-Stoll,T (2215) Porto San Giorgio 1996 0-1}) (6. Re1 e6
$14) 6... Nc7 $14 7. Bxc6+ bxc6 8. d3 e6 (8... g6 9. exd6 Qxd6 10. Nc3 $14) 9.
Bg5 Be7 10. exd6 {White forks: c7+e7} Qxd6 11. Bxe7 Qxe7 {White has a new
backward pawn: d3} 12. Ne5 {White threatens to win material: Ne5xc6} Bb7 13. f4
O-O 14. Nc3 Rad8 15. Qc2 f6 {Black threatens to win material: f6xe5} 16. Nf3
Qd6 {Black threatens to win material: Qd6xf4. Black forks: f4+d3} 17. Ne4 {
White threatens to win material: Ne4xd6} Qxf4 18. Kh1 (18. Rae1 e5 19. Qb3 Bc8
$14) 18... f5 (18... e5 $142 $5 $11 {would allow Black to play on}) 19. Nxc5
$16 Bc8 20. d4 Na6 (20... Rxd4 $142 21. Nd3 Qd6 22. Nxd4 Qxd4 $16) 21. Ne5 $4 {
throwing away the advantage} (21. Nxa6 Bxa6 22. Qa4 Bb7 23. Qxa7 Qc7 $16) 21...
Qg5 $4 {not a good decision, because now the opponent is right back in the game
} (21... Qxd4 22. Ncd3 $17) 22. Nxc6 $4 {weakening the position} (22. Nxa6 $5
Bxa6 23. Qa4 $16) 22... Rd6 $4 {Black threatens to win material: Rd6xc6. with
this move Black loses his initiative} (22... Nxc5 23. Nxd8 Rxd8 $17) 23. Nxa7
$4 {a transit from better to worse} (23. Ne4 $142 fxe4 24. Rxf8+ Kxf8 25. Rf1+
Ke8 26. Ne5 Rxd4 27. Qa4+ Bd7 28. Nxd7 Rxd7 29. Qxa6 $16) 23... Nxc5 $17 24.
Nb5 Rdd8 25. Rf3 (25. a4 Bb7 26. Ra3 Rf6 $19) 25... Bb7 26. Rg3 Qh6 $4 {
releasing the pressure on the opponent} (26... Qh5 $142 {and the scales tip in
favour of Black} 27. Kg1 Ne4 $19) 27. dxc5 $11 Rd2 (27... f4 $142 $5 {must
definitely be considered} 28. Rf3 Qh5 $11) 28. Qc3 $16 g6 29. Nd6 Rd8 $4 {
further deteriorates the position} (29... Bc6 30. Qc1 Qf4 $11) 30. Qf6 $18 Rf8
(30... Qf8 {desperation} 31. Qxe6+ Kh8 $18) 31. Qxe6+ Kg7 (31... Kh8 32. Nf7+
Rxf7 33. Qxf7 Rxb2 34. Rd1 Bxg2+ 35. Rxg2 Rb8 36. Qf6+ Qg7 37. Rd8+ Rxd8 38.
Qxd8+ Qg8 39. Qxg8+ Kxg8 40. c6 f4 41. c7 f3 42. c8=Q+ Kg7 43. Qc7+ Kf6 44. Rg3
f2 45. Rf3+ Ke6 46. Rxf2 h5 47. Rf7 h4 48. Qe7#) 32. Qe7+ Kg8 33. Qxb7 Qh5 (
33... g5 34. h4 $1 {doomsday} Re2 35. Rxg5+ Kh8 36. g3 $18) 34. Qf3 Qh6 (34...
Qxf3 {cannot change destiny} 35. gxf3 Rxb2 36. Rg2 Rxg2 37. Kxg2 $18) 35. Qe3 (
35. Nxf5 $142 {and White wins} Rxf5 36. Qxf5 $18) 35... Qxe3 36. Rxe3 f4 (36...
Rxb2 {is no salvation} 37. a4 $18) 37. Rb3 g5 (37... Ra8 {does not improve
anything} 38. Kg1 $18) 38. Rf1 g4 (38... Ra8 {is not much help} 39. a3 $18) 39.
Rb7 f3 (39... h5 {doesn't improve anything} 40. h3 $18) 40. g3 (40. gxf3 $142 {
and the rest is a matter of technique} Rd4 $18) 40... h5 (40... h6 {doesn't
change anything anymore} 41. a4 $18) 41. Ne4 (41. a4 $5 {seems even better} Ra8
42. Ne4 Re2 $18) 41... Rd4 42. Nf2 Rxc4 43. b4 Re8 (43... Rf7 {does not help
much} 44. Rb8+ Rf8 45. Rxf8+ Kxf8 46. Nd3 $18) 44. h3 gxh3 (44... Re6 {doesn't
get the cat off the tree} 45. a4 $18) 45. Nxh3 Rf8 (45... Ra8 {doesn't improve
anything} 46. Rf2 $18) 46. Nf4 Rc3 47. Nxh5 f2 (47... Rf7 {doesn't change the
outcome of the game} 48. Rb8+ Kh7 49. a4 $18) 48. Kg2 Rff3 49. Rxf2 (49. Rxf2
Rxf2+ 50. Kxf2 Rc2+ 51. Kf3 Rc3+ 52. Ke4 Kh8 53. a4 Kg8 54. a5 Ra3 55. c6 Rc3
56. c7 Kf8 57. a6 Rc4+ 58. Kf5 Rc3 59. a7 Rf3+ 60. Ke4 Re3+ 61. Kxe3 Kf7 62.
c8=Q+ Kg6 63. Qg8+ Kxh5 64. Rh7#) 1-0

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.30"]
[Round "3.5"]
[White "Yamamoto, Eisei"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1554"]
[BlackElo "1449"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "61"]

{B33: Sicilian: Pelikan and Sveshnikov Variations} 1. e4 c5 2. Nf3 Nc6 3. d4
cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. f3 O-O $146 {Black castles and
improves king safety} (7... d5 8. exd5 (8. Bg5 dxe4 9. Qxd8+ Nxd8 10. Bxf6
Bxc3+ 11. bxc3 gxf6 12. fxe4 Ke7 13. Bd3 Be6 14. Kd2 Rg8 15. g3 Rc8 16. Raf1
Bh3 17. Rf2 Ne6 18. Na5 Nc5 19. c4 b6 20. Nb3 Nb7 21. a4 Nd6 22. Kc3 Rxc4+ {
Karaklajic,M (2200)-Cramling,D (2355) Reggio Emilia 1979 0-1 (51)}) 8... Nxd5
9. Bd2 Bxc3 (9... Nxc3 10. bxc3 Bd6 11. Bd3 Qh4+ 12. g3 Qh3 13. Qe2 O-O 14.
O-O-O a5 15. a4 Be6 16. Be3 Ba3+ 17. Kb1 Rfc8 18. Ka2 Bf8 19. g4 Qh4 20. Bc1
Ne7 21. Qxe5 Nd5 22. Bb2 Be7 23. c4 Bf6 24. Qe4 {Cave,C (2276)-Amir,K (2250)
Mallorca 2004 0-1 (71)}) 10. Bxc3 O-O 11. Qd2 Nxc3 12. Qxd8 Rxd8 13. bxc3 Bf5
14. Rc1 Rac8 15. g4 Be6 16. Rd1 Rxd1+ 17. Kxd1 Ne7 18. Kd2 Nd5 19. c4 Nb6 20.
Na5 Bxc4 21. Bxc4 Nxc4+ 22. Nxc4 {Puskas,M (2220)-Bokros,A (2365) Dunajska
Streda 1998 0-1 (37)}) 8. Bg5 a5 {Black's piece can't move: c8} 9. Bc4 (9. Nd2
Bxc3 10. bxc3 h6 $11) 9... a4 $15 10. Nc1 (10. Nd2 $15) 10... Nd4 (10... b5 11.
Bd3 a3 12. Rb1 axb2 13. N1e2 $17) 11. N1e2 $2 (11. a3 Bxc3+ 12. bxc3 Ne6 13.
Bxe6 fxe6 $11) 11... Bc5 (11... a3 $142 $5 12. Kf1 axb2 $17) 12. Nd5 $11 {
Praise the knight!} Ne6 {Black threatens to win material: Ne6xg5} (12... Qa5+
$142 13. Bd2 Qd8 $11) 13. Qd3 $4 {White loses the upper hand} (13. Bxf6 gxf6
14. Qd2 Kh8 $14) 13... Qa5+ (13... Nxg5 $142 {makes sure everything is clear}
14. O-O-O d6 $19) 14. Bd2 $11 Qa7 (14... Qd8 $142 $5 $11 {deserves
consideration}) 15. Nxf6+ $16 gxf6 16. O-O-O Kh8 17. g4 Nc7 (17... d6 18. Ng3
$16) 18. Bh6 {White threatens to win material: Bh6xf8} (18. Nc3 $142 $5 $16)
18... b5 $11 {Black threatens to win material: b5xc4} 19. Bxf8 (19. Bd5 Nxd5
20. Qxd5 Bb7 21. Qxd7 Be3+ 22. Bxe3 Qxe3+ 23. Kb1 Qxe2 24. Qxb7 a3 $14) 19...
bxc4 20. Qxc4 {White forks: f7+c5} d5 $4 {stumbles just before the finish line}
(20... Bxf8 $142 {was possible} 21. Qxf7 Ne6 $11) 21. Bxc5 $18 Ba6 (21... Qb7 {
a fruitless try to alter the course of the game} 22. exd5 Bd7 23. Qb4 $18) 22.
Qb4 Qb8 23. Rhe1 (23. Qxb8+ {and White can already relax} Rxb8 24. Ng3 d4 $18)
23... d4 (23... Qc8 {hardly improves anything} 24. Be7 Ne8 25. Rxd5 $18) 24.
Ng3 (24. Qxb8+ $142 {might be the shorter path} Rxb8 25. Bd6 $18) 24... Qd8 (
24... Qc8 $18 {there is nothing better in the position}) 25. Be7 Qd7 26. Bxf6+
Kg8 27. Qd2 (27. Nf5 h6 28. Qd2 Qxf5 29. gxf5 Kh7 30. Rg1 Ne6 31. fxe6 Rg8 32.
Rxg8 h5 33. Rg7+ Kh8 34. Qh6#) 27... Qe6 (27... Ne6 {is one last hope} 28. Bxe5
a3 $18) 28. Qg5+ Kf8 29. Nf5 Bb5 30. Qh6+ Ke8 31. Ng7+ (31. Ng7+ Kd7 32. Nxe6
Nxe6 33. Qxh7 $18) 1-0

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.31"]
[Round "4.1"]
[White "Sugimoto, Koichi"]
[Black "Nishimori, Toshiyuki"]
[Result "1/2-1/2"]
[ECO "D55"]
[WhiteElo "2040"]
[BlackElo "1768"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "139"]

{D55: Queen's Gambit Declined: 4 Bg5 Be7: Lines without ...h6 and 6...h6 7 Bxf6
} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Be7 5. Nc3 O-O 6. e3 b6 7. cxd5 Nxd5 8.
Bxe7 Qxe7 9. Nxd5 exd5 10. Rc1 Bf5 (10... Be6 11. Bd3 Rc8 12. Qc2 g6 13. h4 c5
14. dxc5 bxc5 15. h5 Qf6 16. Qc3 Nd7 17. hxg6 hxg6 18. Qxf6 Nxf6 19. Ng5 Bd7
20. Ba6 Rc7 21. b3 Rb8 22. Be2 a5 23. Rc3 a4 {1/2-1/2 (23) Landa,K (2570)
-Kharitonov,A (2520) Smolensk 1997}) 11. Qb3 $146 (11. Be2 Be4 12. O-O c5 13.
dxc5 bxc5 14. Nd2 Nd7 15. Nxe4 dxe4 16. Qd5 Rab8 17. b3 Rfc8 18. Rfd1 Nf6 19.
Qd6 Qxd6 20. Rxd6 Rb6 21. Rxc5 Rcb8 22. Rd4 R6b7 23. Kf1 g6 24. Ba6 Re7 25.
Rc8+ Rxc8 {Csizmadia,L (2274)-Purkald,M (2213) Hungary 2002 1-0 (48)}) 11...
Qd6 12. Qc3 c6 {Prevents intrusion on b5} 13. Ne5 {White threatens to win
material: Ne5xc6} Rc8 14. b4 f6 {Black threatens to win material: f6xe5} 15.
Nf3 (15. Bd3 $5 {might be a viable alternative} Be6 16. Nf3 $11) 15... a5 $17
16. b5 Qb4 (16... cxb5 $142 $5 17. Qxc8+ Bxc8 18. Rxc8+ Kf7 $17) 17. a3 $11
Qxc3+ 18. Rxc3 c5 19. dxc5 Rxc5 20. Kd2 {White loses the right to castle} Nd7
21. Nd4 {The knight is not easily driven from d4} Rxc3 22. Kxc3 Rc8+ 23. Kb2
Bg6 24. Nc6 Kf8 25. Be2 Nc5 26. Rd1 {White threatens to win material: Rd1xd5}
Be8 {Black threatens to win material: Be8xc6} 27. Rxd5 Bxc6 28. bxc6 Rxc6 29.
Bb5 {White threatens to win material: Bb5xc6. A comfortable square for the
white bishop} Rc7 30. Rd8+ Ke7 {Black threatens to win material: Ke7xd8} 31.
Re8+ Kd6 32. Rb8 {White threatens to win material: Rb8xb6} Ne4 {Black
threatens to win material: Ne4xf2} 33. f3 {White threatens to win material:
f3xe4} (33. Rxb6+ Kc5 34. Rb8 Nxf2 $11) 33... Kc5 {Black threatens to win
material: Kc5xb5} 34. Bd3 {White threatens to win material: Bd3xe4} Nd6 35.
Bxh7 (35. Rh8 $5 $11) 35... Nc4+ $17 {Black forks: e3} 36. Kb3 (36. Ka2 Nxe3
37. g4 Nc4 $17) 36... Nxe3 37. g4 Nd5 (37... Nc4 $142 $5 38. Be4 b5 $17) 38.
Be4 $11 Ne7 39. Rd8 b5 40. h4 a4+ {Black gains space} (40... Nc8 41. Rd5+ Kc6
42. Rd3+ Kc5 43. Rc3+ Kb6 44. Rxc7 Kxc7 45. f4 $14) 41. Kb2 $14 Nc6 $4 (41...
Nc8 $142 $14 {was much better}) 42. Rd5+ $18 Kc4 43. Rd3 (43. Rd1 $142 {
and White has triumphed} Kc5 44. Rc1+ Kd6 45. Bxc6 $18) 43... b4 $16 44. axb4
Kxb4 45. Rc3 Kb5 (45... a3+ 46. Rxa3 Nd4 47. Rd3 $16) 46. Ka3 Kb6 47. Rc4 (47.
Kxa4 Ra7+ 48. Kb3 Ne5 $16) 47... Na7 (47... Nd8 48. Rd4 Nc6 49. Rxa4 $16) 48.
Rb4+ (48. Rxa4 Nc6 $16) 48... Kc5 49. Kxa4 Nc8 50. Kb3 Nd6 51. Bd3 Kd5 52. h5 {
White wins space} Rc1 (52... Re7 53. Kc3 $16) 53. Kb2 {White threatens to win
material: Kb2xc1} (53. Ra4 Re1 54. Kc3 Re3 55. Ra5+ Ke6 $16) 53... Rh1 54. Kc2
Rh2+ (54... Rh3 55. Rb3 Rh2+ 56. Kd1 Kd4 $16) 55. Kc3 (55. Kd1 $142 $5 $16)
55... Rf2 $11 56. f4 Rg2 57. f5 {This push gains space} Rg3 58. Kd2 Kc5 {
Black threatens to win material: Kc5xb4} (58... Ke5 59. Ra4 $11) 59. Ra4 $14
Kd5 60. Ke2 Ke5 61. Ra7 (61. Bb1 $142 $5 $14 {and White has air to breath})
61... Rxg4 $15 62. Kf3 {White threatens to win material: Kf3xg4} Rg5 {[%cal
Rd6f5,Re5f5,Rg5f5,Gd3f5] The pressure on the isolated pawn grows} 63. Re7+ Kd5
64. Kf4 Kd4 {Black threatens to win material: Kd4xd3} 65. Rd7 {White threatens
to win material: Rd7xd6} Kd5 66. Bc2 Kc5 67. Rc7+ Kb6 {Black threatens to win
material: Kb6xc7} 68. Rd7 {White threatens to win material: Rd7xd6} Kc5 69.
Rc7+ {Twofold repetition} Kb6 70. Rd7 1/2-1/2

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.31"]
[Round "4.2"]
[White "Watanabe, Katsumi"]
[Black "Yamanouchi, Kento"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "1612"]
[BlackElo "1996"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "72"]

{B10: Caro-Kann: 2 d3 and 2 c4} 1. e4 c6 2. Nf3 d5 3. e5 Bg4 4. h3 Bxf3 5. Qxf3
e6 6. d4 Ne7 {Black has a cramped position. Black's piece can't move: f8} (6...
c5 7. Bb5+ Nd7 8. c3 Ne7 9. Bg5 a6 10. Bxd7+ Qxd7 11. Bxe7 Bxe7 12. dxc5 Bxc5
13. O-O O-O 14. Qe2 f6 15. exf6 Rxf6 16. Kh1 Raf8 17. f3 Qd6 18. Nd2 Ba7 19.
Rfe1 Bb8 20. Nf1 e5 21. Ne3 {Dominguez,R (2196)-Castaneda,J (2199) San Andres
Isla 2015 0-1}) 7. Bd3 $146 (7. Qb3 Qc7 8. Nd2 c5 9. Nf3 Nec6 10. c3 cxd4 11.
cxd4 Bb4+ 12. Bd2 Bxd2+ 13. Kxd2 O-O 14. Bd3 f6 15. Rac1 fxe5 16. dxe5 Nd7 17.
Rhe1 Nb6 18. Qc2 g6 19. Kd1 Qg7 20. Qe2 Rad8 21. Ng5 Qe7 {Burgos,C (2335)
-Gomez Baillo,J (2418) Cordoba 2004 0-1 (37)}) 7... c5 {The typical lever} 8.
c3 Nbc6 9. Be3 (9. dxc5 Nxe5 10. Bb5+ N7c6 $11) 9... Qb6 $15 10. b3 (10. Qe2 $5
{has some apparent merit} cxd4 11. cxd4 Nxd4 12. Qd2 $15) 10... cxd4 $17 11.
cxd4 Qb4+ 12. Bd2 Qxd4 13. Bc3 Qb6 {[%cal Yd5d4] Black prepares d4} 14. O-O Ng6
15. Re1 d4 16. Bxg6 hxg6 17. Bb2 Bb4 (17... Rh5 18. Nd2 $17) 18. Re2 (18. Re4
Rd8 19. Na3 O-O $17) 18... Rd8 19. Na3 O-O 20. Nc4 Qc7 21. Rd1 (21. a3 $5 Be7
22. Qe4 $17) 21... Rd5 22. Qg3 Rfd8 23. Rd3 $2 (23. Rc2 $142 $19) 23... b5 24.
a3 bxc4 (24... Be7 $5 {might be the shorter path} 25. Nd2 Nxe5 26. Nf3 $19) 25.
bxc4 Rc5 26. axb4 Rxc4 27. b5 Nb4 28. Ba3 $4 {an oversight. But White was lost
anyway.} (28. Rd1 $142 $19) 28... Nxd3 29. Qxd3 Rc3 30. Bd6 Rxd3 31. Bxc7 Rc8
32. b6 (32. Bd6 {cannot undo what has already been done} Rd1+ 33. Kh2 d3 $19)
32... axb6 33. Bxb6 Rd1+ 34. Kh2 d3 35. Re4 d2 36. Rd4 Rb1 (36... Rb1 37. Rxd2
Rxb6 $19) 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.31"]
[Round "4.3"]
[White "Kanamaru, Tomoji"]
[Black "Manabe, Hiroaki"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1586"]
[BlackElo "1760"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "40"]

{B50: Sicilian: 2...d6, Miscellaneous} 1. e4 Nf6 2. d3 c5 3. Nc3 (3. f4 Nc6 4.
Nf3 e6 5. g3 Be7 6. Bg2 O-O 7. O-O d5 8. e5 Ne8 9. Nc3 Rb8 10. a4 a6 11. Kh1 b5
12. axb5 axb5 13. d4 Bd7 14. Be3 cxd4 15. Nxd4 Nxd4 16. Bxd4 Nc7 17. Ne2 b4 {
Balashov,Y (2545)-Sveshnikov,E (2450) Nabereznye Chelny 1988 1/2-1/2 (49)})
3... Nc6 4. Nf3 (4. g3 d5 5. Bg2 d4 6. Nce2 e5 7. h3 Bd6 8. f4 Qc7 9. Nf3 Bd7
10. O-O O-O-O 11. Bd2 Kb8 12. a3 Qc8 13. Kh2 h5 14. f5 Rdf8 15. Rb1 Ka8 16. b4
g6 17. Nh4 Rhg8 18. b5 Nb8 {Perez Mederos,R (2192)-Ruiz,L (2224) Santa Clara
2015 1-0 (57)}) 4... d6 $146 {Covers e5} (4... d5 5. exd5 Nxd5 6. Be2 Nxc3 7.
bxc3 g6 8. O-O Bg7 9. Bd2 O-O 10. Qc1 Re8 11. a4 Bd7 12. Re1 Qc7 13. Qa3 b6 14.
h3 e5 15. Rab1 Re7 16. Nh2 Rae8 17. Bf3 h6 18. Nf1 f5 19. Ne3 {Maroczy,
G-Bogoljubow,E Vienna 1922 1-0 (46)}) 5. Be2 g6 6. O-O Bg7 7. d4 cxd4 8. Nxd4
a6 {Controls b5} 9. Bf3 Qb6 {Black threatens to win material: Qb6xd4} 10. Nb3
O-O 11. Be3 {White threatens to win material: Be3xb6} Qd8 {White has a very
active position} 12. Nd4 Ne5 13. Be2 b5 14. a3 {White has an active position}
Bb7 15. f3 {Consolidates g4} Rc8 16. Qd2 Nc4 17. Bxc4 Rxc4 {Black has the pair
of bishops} 18. Nce2 Qd7 (18... e5 19. Nb3 Qc7 20. Rac1 $15) 19. c3 (19. Rad1
Qc7 20. b3 Rc5 $11) 19... Rfc8 (19... e5 $5 20. Nc2 d5 $15) 20. Bh6 $11 Bh8 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.31"]
[Round "4.4"]
[White "Yamamoto, Eisei"]
[Black "Sato, Yasuji"]
[Result "0-1"]
[ECO "D06"]
[WhiteElo "1554"]
[BlackElo "1630"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "76"]

{D06: Queen's Gambit: Symmetrical and Baltic Defences} 1. Nf3 d5 2. d4 Nf6 3.
c4 Bf5 4. Nc3 e6 5. Bg5 h6 $146 (5... Nc6 6. e3 (6. cxd5 exd5 7. Bxf6 gxf6 8.
Rc1 Qd6 9. a3 Bh6 10. e3 O-O 11. Bd3 Bxd3 12. Qxd3 a6 13. Nh4 Ne7 14. Nf5 Nxf5
15. Qxf5 c6 16. Qh5 f5 17. Qxf5 Rae8 18. Ne2 Re6 19. Ng3 Rf6 20. Qd3 Qe6 {
Cramling,P (2470)-Moyano Morales,F (2220) Palma de Mallorca 1991 1-0 (33)})
6... Be7 7. Bxf6 Bxf6 8. cxd5 exd5 9. Qb3 Ne7 10. Qxb7 O-O 11. Be2 c5 12. O-O
c4 13. b3 Qa5 14. b4 Qd8 15. Qa6 Qb8 16. Qa4 Qb6 17. a3 Rfb8 18. Qd1 a5 19. b5
a4 20. Qd2 {Hausner,I (2365)-Vokac,M (2200) Marianske Lazne 1978 1-0 (48)}) (
5... Bb4 6. Qa4+ Nc6 7. e3 O-O 8. Be2 dxc4 9. Bxc4 a6 10. Be2 h6 11. Bxf6 Qxf6
12. O-O Rfe8 13. Rac1 Bf8 14. Nd2 Qg6 15. Kh1 Red8 16. Qd1 Bd3 17. Bxd3 Qxd3
18. Nb3 Qg6 19. Qf3 e5 20. d5 {Demidov,M (2519)-Nosenko,A (2506) Prague 2015
0-1 (57)}) (5... Be7 6. cxd5 Nxd5 7. Bxe7 Qxe7 8. Nxd5 exd5 9. Qb3 O-O 10. e3
c6 11. Be2 Nd7 12. O-O Nf6 13. Ne5 Ne4 14. Rad1 Rae8 15. Qa4 a6 16. Qa5 Qh4 17.
Qb4 Re6 18. Qxb7 Rh6 19. Nf3 Qh5 20. Qc7 {Palao,M (2155)-Sequera Paolini,J 
(2330) Matanzas 1994 0-1 (59)}) (5... c6 6. Nh4 $14) 6. Bh4 (6. Bxf6 $5 gxf6 7.
Nh4 $16) 6... Bb4 7. a3 Bxc3+ 8. bxc3 c6 9. e3 Nbd7 10. Ne5 (10. cxd5 $5 exd5
11. Bd3 Bxd3 12. Qxd3 $11) 10... Qa5 {Black threatens to win material: Qa5xc3}
11. Qb3 {White threatens to win material: Qb3xb7} Ne4 (11... Nxe5 12. dxe5 Nd7
$17) 12. Rc1 $4 {gives the opponent counterplay} (12. Nxd7 $142 dxc4 13. Bxc4
$16) 12... Nxe5 $17 13. dxe5 O-O (13... g5 14. Bg3 O-O-O 15. Qb4 $17) 14. Be7 (
14. f3 $142 Qc5 15. Ke2 dxc4 16. Qb4 $17) 14... Nc5 $4 {Black lets it slip away
} (14... Rfe8 15. Qb4 Qb6 16. Bd6 $17) 15. Qb2 $4 {forfeits the advantage} (15.
Qb4 $142 Qxb4 16. cxb4 $16) 15... Rfe8 $15 16. Bd6 {White can be proud of that
piece} Nd3+ (16... Qb6 $142 $5 17. Qxb6 axb6 18. cxd5 exd5 $17) 17. Bxd3 $11
Bxd3 {Black traps the enemy king in the center} 18. c5 (18. cxd5 cxd5 19. Qxb7
Rac8 $11) 18... b6 {Black threatens to win material: b6xc5} 19. Qb4 Qa6 20. f3
{Covers e4} Qb7 21. Kd2 Bc4 22. a4 b5 23. axb5 Bxb5 24. c4 {White threatens to
win material: c4xb5.} a5 {Black threatens to win material: a5xb4} 25. Qb2 dxc4
26. Rxc4 (26. Rc3 Red8 $15) 26... Qd7 (26... a4 $5 27. Rb4 a3 $17) 27. Rc3 (27.
Rd4 Qd8 $11) 27... a4 28. Ra3 Reb8 29. Qd4 Rb7 30. Rha1 Qd8 31. Kc2 (31. Ke1 $5
$11) 31... Qa5 $15 {White king safety dropped} 32. Qc3 (32. Kd1 Qa6 $15) 32...
Qa6 $17 33. Kd2 (33. Kd1 $5 $17) 33... Bf1 34. Kc2 $4 {shortens the misery for
White} (34. Re1 $142 Bxg2 35. e4 $17) 34... Bxg2 (34... Rb3 $142 {keeps an
even firmer grip} 35. Qd2 Qc4+ 36. Kd1 Bxg2 37. Rxb3 Bxf3+ 38. Ke1 Qxb3 $19)
35. Rg1 (35. Qd3 Qa5 36. Qc3 $19) 35... Bxf3 (35... Qe2+ $142 {makes it even
easier for Black} 36. Kc1 Rb3 37. Qxb3 axb3 38. Rxa8+ Kh7 39. Rxg2 Qxg2 $19)
36. e4 (36. Kc1 {the last chance for counterplay} Qb5 37. Qa1 $19) 36... Qe2+
37. Kc1 Bxe4 (37... Rb3 38. Qd2 Qxe4 39. Rxb3 axb3 40. Kb2 Ra2+ 41. Kc3 Rxd2
42. Rxg7+ Kxg7 43. Kxd2 Qd4+ 44. Ke1 Qe3+ 45. Kf1 Qe2+ 46. Kg1 Qe1#) 38. Rxg7+
(38. Ra1 {doesn't do any good} a3 39. Qd2 Qf3 40. Rg3 a2 41. Qd3 Qf4+ 42. Kc2
Qf2+ 43. Kd1 Bxd3 44. Rxg7+ Kxg7 45. Bf8+ Rxf8 46. h4 Rb1+ 47. Rxb1 axb1=Q#)
38... Kxg7 (38... Kxg7 39. Qg3+ Kh8 40. Qg7+ Kxg7 41. Rg3+ Kh8 42. Rg8+ Rxg8
43. h3 Rb1#) 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.31"]
[Round "4.5"]
[White "Ito, Katsuhide"]
[Black "Nakamura, Mitsuru"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "1449"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "35"]

{B94: Sicilian Najdorf: 6 Bg5 Nbd7} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6
5. Nc3 a6 6. Bg5 g6 7. f4 $146 {Black is behind in developement} (7. Bxf6 exf6
8. Qd2 Bg7 9. O-O-O O-O 10. Kb1 Re8 11. f3 Qb6 12. Nd5 Qc5 13. b4 Qa7 14. Nc7
Rd8 15. Nxa8 Qxa8 16. Bc4 Nc6 17. Nxc6 bxc6 18. Bb3 f5 19. e5 d5 20. f4 Be6 21.
c4 Bf8 {Ginsburg,G (2506)-McShane,L (2614) playchess.com INT 2006 1/2-1/2 (62)}
) (7. Bxf6 $5 {should be investigated more closely} exf6 8. Qd2 $14) 7... Bg7
$11 8. h3 {Secures g4} (8. Nb3 O-O $11) 8... Bd7 {Black has a cramped position}
(8... h6 9. Bxf6 Bxf6 10. Bc4 $15) 9. Qf3 $11 Nc6 {Black threatens to win
material: Nc6xd4} 10. O-O-O Qc7 (10... Nxd4 11. Rxd4 Qb6 12. Rc4 $11) 11. Bc4 (
11. Bxf6 $142 exf6 12. Nd5 $14) 11... e5 $4 {Black has let it slip away} (11...
Nxd4 $142 {was a good chance to save the game} 12. Rxd4 Bc6 $11) 12. Nxc6 $18
bxc6 (12... Qxc6 {the only chance to get some counterplay} 13. fxe5 Qxc4 14.
Bxf6 Bxf6 15. Qxf6 O-O $18) 13. fxe5 dxe5 14. Bxf6 Bxf6 (14... O-O {does not
save the day} 15. Na4 $18) 15. Qxf6 O-O 16. Qe7 (16. Rhf1 $142 {and White can
already relax} Be8 17. Na4 $18) 16... Rad8 (16... Ra7 $18 {what else?}) 17. Na4
(17. Rhf1 $142 {and White has reached his goal} Be6 18. Qxc7 Rc8 19. Qxe5 Bxc4
$18) 17... Qc8 (17... Qa5 {no good, but what else?} 18. Nc5 Rde8 19. Qxd7 Qxc5
20. Bxf7+ Rxf7 21. Qxe8+ Rf8 22. Qe6+ Kg7 23. Rd7+ Kh6 $18) 18. Nc5 (18. Nc5
Be6 19. Bxe6 Rxd1+ 20. Rxd1 $18) 1-0

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.31"]
[Round "5.1"]
[White "Nishimori, Toshiyuki"]
[Black "Yamanouchi, Kento"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "1768"]
[BlackElo "1996"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "37"]

{B34: Sicilian: Accelerated Dragon with 5 Nc3: sidelines} 1. e4 c5 2. Nf3 g6 3.
d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. Be3 Nf6 7. Qd2 O-O 8. h4 $146 {Black has a
cramped position. Black's piece can't move: c8} (8. O-O-O Ng4 9. Nxc6 (9. Be2
Nxe3 10. fxe3 d6 11. h4 Bd7 12. h5 Rc8 13. hxg6 hxg6 14. Qe1 Ne5 15. Qh4 Re8
16. Qh7+ Kf8 17. Bb5 Rxc3 18. Bxd7 Nxd7 19. Ne6+ fxe6 20. Rdf1+ Nf6 21. Qxg6
Rxc2+ 22. Kxc2 Qc7+ 23. Kb1 Qc4 {Damia,A (2234)-Stokke,K (2385) Split 2013 1/
2-1/2 (37)}) 9... bxc6 10. Bd4 (10. Bg5 Rb8 11. Bc4 Qb6 12. Bb3 Qxf2 13. Rdf1
Qxd2+ 14. Kxd2 Bh6 15. Bxh6 Nxh6 16. Rf4 d6 17. h3 Be6 18. g4 Bxb3 19. axb3 f6
20. Ra1 Rb7 21. Ra6 Rc8 22. Rf1 Nf7 23. Rfa1 Rcc7 24. Ke3 Kf8 {Dengler,P (2330)
-Schindler,W (2295) Bayern 1994 0-1 (56)}) 10... Bh6 11. Be3 Nxe3 12. fxe3 Rb8
13. Re1 Qb6 14. Na4 Qc7 15. Bc4 Qe5 16. Nc3 Bg7 17. Qd3 d6 18. h3 Be6 19. Rhf1
Bxc4 20. Qxc4 Qa5 21. a3 d5 22. Qxc6 Rbc8 {Torbat,N (2200)-Kallai,G (2420)
Ulaanbaatar 1984 0-1}) (8. Nb3 d6 9. Be2 Be6 10. Nd4 Nxd4 11. Bxd4 Qa5 12. Bf3
Rac8 13. Nd5 Qxd2+ 14. Kxd2 Nxe4+ 15. Bxe4 Bxd5 16. Bxg7 Bxe4 17. Bxf8 Kxf8 18.
Rhg1 Rxc2+ 19. Ke3 Bc6 20. b4 e5 21. g3 d5 22. Rge1 f6 {Jackova,J (2388)
-Timman,J (2591) Marianske Lazne 2009 0-1 (37)}) (8. h3 d5 9. Nxc6 bxc6 10. e5
Nd7 11. f4 e6 12. Na4 Nxe5 13. O-O-O Nd7 14. g4 Rb8 15. h4 Nf6 16. h5 Nxg4 17.
Bc5 Qf6 18. c3 Bh6 19. Bd6 e5 20. Bxb8 Bxf4 21. Bxa7 gxh5 22. Bd3 e4 {Strowsky,
Y (2160)-Rausis,I (2560) Lyon 1993 0-1}) 8... Ng4 9. O-O-O Nxe3 10. Nxc6 $4 {
throwing away the advantage} (10. fxe3 $142 {would save the game} d6 11. h5 $11
) 10... Nxf1 $19 11. Qg5 $2 (11. Nxe7+ Qxe7 12. Rhxf1 Bxc3 13. Qxc3 Qxe4 14. h5
$19) 11... bxc6 12. h5 (12. Rhxf1 {a last effort to resist the inevitable} Rb8
13. Qc5 $19) 12... h6 13. Qf4 (13. Qc5 {doesn't get the bull off the ice} Ba6
$19) 13... g5 (13... e5 $142 $5 {seems even better} 14. Qg4 d5 15. Qe2 Qg5+ 16.
Kb1 $19) 14. Qf3 Rb8 15. Rdxf1 (15. Rhxf1 {doesn't get the cat off the tree}
Qa5 16. e5 Rxb2 17. Kxb2 Bxe5 $19) 15... Qb6 (15... Qa5 16. Rfg1 Rxb2 17. e5
$19) 16. b3 a5 17. Rd1 (17. Qg3 {doesn't change the outcome of the game} Qc5
18. Nb1 Rb4 $19) 17... Qc5 18. Na4 (18. Rd3 $19 {hoping against hope}) 18...
Qa3+ 19. Kb1 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.31"]
[Round "5.2"]
[White "Manabe, Hiroaki"]
[Black "Sugimoto, Koichi"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1760"]
[BlackElo "2040"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "50"]

{B01: Scandinavian Defence} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3
c6 6. Ne5 Nbd7 7. Nc4 Qc7 8. Qf3 Nb6 9. Bf4 Qd8 10. Be5 Bg4 11. Qg3 h5 12. h3
h4 13. Qf4 Be6 14. Ne3 (14. Nxb6 Qxb6 15. O-O-O O-O-O 16. Qf3 Qa5 17. a3 Nd7
18. Bh2 Nf6 19. Qf4 Rd6 20. Qf3 Rd8 21. Be5 Nd7 22. Bh2 {1/2-1/2 (22)
Krivoborodov,E (2511)-Lauer,M (2355) Germany 2015}) 14... Nbd5 15. Ncxd5 (15.
Nexd5 Nxd5 16. Qd2 Nxc3 17. Qxc3 Bd5 18. Qd2 e6 19. c4 Be4 20. f3 Bf5 21. a3
Rh5 22. Rd1 Bd6 23. Qe3 f6 24. Bxd6 Qxd6 25. f4 Kf8 26. Be2 Rh6 27. O-O a5 28.
Bd3 Bxd3 29. Qxd3 Rd8 {Hossain,E (2460)-Tiviakov,S (2669) Turin 2006 1/2-1/2 
(41)}) 15... Nxd5 16. Qf3 $146 (16. Nxd5 Qxd5 17. Qe3 (17. c4 Qa5+ 18. Qd2
Qxd2+ 19. Kxd2 O-O-O 20. Kc3 Bf5 21. Be2 e6 22. Bg4 Bxg4 23. hxg4 Be7 24. Rh3
Rd7 25. Re1 Rg8 26. Rf3 a5 27. a3 b5 28. cxb5 cxb5 29. Kb3 Bd8 30. Rc1+ Kb7 31.
Rc5 a4+ {Gruenter,M (2232)-Lai,H (2173) Germany 2013 0-1 (60)}) 17... f6 18.
Bh2 Bf5 19. Bd3 Bxd3 20. Qxd3 O-O-O 21. O-O Qxd4 22. Qb3 e5 23. c3 Qd5 24. Qa4
Bc5 25. Qg4+ Qd7 26. Qc4 Bb6 27. a4 a6 28. b4 Kb8 29. Kh1 g5 30. b5 cxb5 {
Stetsko,L (2209)-Mikadze,M (2314) Belgrade 2013 0-1 (38)}) (16. Nxd5 $142 $5 {
is an interesting alternative} Qxd5 17. c4 Qa5+ 18. Qd2 Qxd2+ 19. Kxd2 $11)
16... Qa5+ $17 17. c3 Nxc3 $1 {Mate threat} 18. Nc4 (18. bxc3 Qxc3+ 19. Kd1 (
19. Ke2 Qb2+ {Decoy}) 19... Qxa1+ 20. Kc2 (20. Kd2 Qb2+ {Double attack}) (20.
Ke2 Qb2+ {Double attack}) 20... Qxa2+ {Combination}) (18. -- $140 Ne4+ {
Mate threat}) 18... Bxc4 19. Bxc4 $4 {causes further problems for ?} (19. Qxc3
$142 Qxc3+ 20. bxc3 Bxf1 21. Rxf1 $17) 19... Nb1+ $19 20. Ke2 Qd2+ 21. Kf1 Qc1+
22. Ke2 Qxb2+ 23. Ke1 Qd2+ (23... e6 $142 {secures victory} 24. Qd1 Qxa1 25.
Bd3 Bb4+ 26. Kf1 Nd2+ 27. Ke2 Qxa2 28. Qc2 $19) 24. Kf1 Qc1+ 25. Ke2 Qxc4+ (
25... Qxc4+ 26. Qd3 Qxd3+ 27. Kxd3 Na3 $19) 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.31"]
[Round "5.3"]
[White "Sato, Yasuji"]
[Black "Watanabe, Katsumi"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1630"]
[BlackElo "1612"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "122"]

{C44: Ponziani Opening and Scotch Gambit} 1. e4 e5 2. Nf3 Nc6 3. c3 d6 4. d4
Bg4 5. Bb5 (5. Be2 Nf6 6. O-O Be7 7. Qb3 Qc8 8. h3 Bh5 9. Nbd2 O-O 10. Qc2 Bg6
11. dxe5 dxe5 12. b4 a6 13. Re1 Nd7 14. a3 Re8 15. Bb2 Nf8 16. c4 f6 17. Nf1
Ne6 18. Ne3 a5 19. b5 Ncd8 {Khegay,D (2200)-Tikhomirov,A (2195) Krasnoyarsk
2011 0-1 (51)}) 5... a6 6. Bxc6+ (6. Ba4 b5 7. Bb3 Nf6 8. O-O Be7 9. h3 Bxf3
10. Qxf3 exd4 11. Qg3 O-O 12. Bh6 Ne8 13. Bd5 Bh4 14. Qf4 Ne5 15. Bxa8 Ng6 16.
Qf5 gxh6 17. Bd5 Ng7 18. Qf3 c6 19. Bb3 Ne5 20. Qd1 d3 {Velimirovic,D (2515)
-Stanojevic,B (2340) Bjelovar 1979 1-0}) 6... bxc6 7. Nbd2 $146 (7. dxe5 Bxf3
8. gxf3 dxe5 9. Qxd8+ Rxd8 10. f4 Bd6 11. fxe5 Bxe5 12. Na3 Ne7 13. Nc4 Ng6 14.
Nxe5 Nxe5 15. Ke2 Rd7 16. Be3 Nc4 17. b3 Nd6 18. f3 Kd8 19. Rhd1 Re8 20. Kf2 f5
21. exf5 Nxf5 {Kilpela,P (2220)-Sorri,K (2305) Helsinki 1997 1/2-1/2 (45)})
7... Be7 (7... exd4 8. cxd4 Nf6 9. Qc2 $14) 8. h3 $16 Bxf3 {Black forks: d1+g2}
9. Nxf3 Bf6 10. dxe5 dxe5 11. O-O Ne7 12. Bg5 (12. Be3 Qxd1 13. Rfxd1 Ng6 $16)
12... Bxg5 $14 13. Nxg5 h6 {Black threatens to win material: h6xg5} 14. Nf3 Ng6
15. Qa4 Qf6 16. Qa5 {White threatens to win material: Qa5xc7} O-O 17. Qxc7 Rfe8
(17... Rab8 18. b3 $14) 18. Rad1 $16 Nf4 19. Rd6 {White threatens to win
material: Rd6xf6. White forks: c6+f6} Rac8 (19... Nxh3+ $5 20. Kh1 Qf4 $14) 20.
Qd7 (20. Qxc8 Rxc8 21. Rxf6 gxf6 $18) 20... Red8 $16 21. Rxf6 Rxd7 22. Nxe5
Ne2+ 23. Kh2 Re7 $2 (23... Rb7 $142 24. Rf3 Rxb2 25. Nxf7 Rxa2 $16) 24. Rxc6
$18 Rxc6 25. Nxc6 Rxe4 26. Re1 (26. Nb4 {might be the shorter path} a5 27. Nd5
f5 $18) 26... Re6 (26... Nxc3 27. Rxe4 Nxe4 $18) 27. Rd1 $4 {lets it slip away}
(27. Nb4 $142 $18 {secures the win}) 27... Rxc6 $17 28. Rd2 Nf4 29. g3 Ne6 30.
f4 (30. Kg2 a5 $17) 30... g6 31. Kg2 Kg7 32. Kf3 h5 33. Ke4 (33. Rd5 h4 $1 $19
{Decoy: h4}) 33... Kf6 34. g4 $2 (34. h4 $19) 34... hxg4 35. hxg4 Rc4+ 36. Ke3
(36. Kd5 Rxf4 37. Rg2 Kg5 $19) 36... Rxf4 37. Rf2 (37. Rd6 {there is nothing
else anyway} Ra4 38. a3 $19) 37... Rxf2 38. Kxf2 Ke5 39. Ke3 (39. b3 {doesn't
get the cat off the tree} Nc5 40. Kf3 Nd3 $19) 39... Nc5 40. b4 (40. Kd2 {
a fruitless try to alter the course of the game} g5 $19) 40... Na4 41. c4 f5
42. gxf5 (42. Kf2 $19 {is the last straw}) 42... Kxf5 43. c5 g5 44. c6 Nc3 45.
Kd3 Nb5 46. a4 Nc7 47. Ke3 Ke5 (47... g4 48. Kd4 Kf4 49. Kc5 Ke5 50. Kc4 g3 51.
b5 axb5+ 52. axb5 g2 53. b6 g1=Q 54. bxc7 Qd4+ 55. Kb5 Qg4 56. Kc5 Qe6 57. Kb5
Kd4 58. Kb6 Qc8 59. Ka7 Qxc7+ 60. Ka8 Qxc6+ 61. Kb8 Kc5 62. Ka7 Qb5 63. Ka8 Kc6
64. Ka7 Qb7#) 48. b5 axb5 49. axb5 Nxb5 50. Kf3 Nc7 51. Kg4 (51. Ke3 {does not
help much} g4 52. Kd3 Na8 53. Ke3 Kf5 54. Ke2 Kf4 55. Kd1 Ke3 56. Kc1 g3 57.
Kb1 g2 58. c7 g1=Q+ 59. Kb2 Qf2+ 60. Kc3 Nxc7 61. Kc4 Kd2 62. Kb3 Qb6+ 63. Ka4
Kc3 64. Ka3 Qa6#) 51... Kf6 52. Kg3 (52. Kf3 {doesn't get the bull off the ice}
Kf5 53. Ke2 Ke4 54. Kf1 Kf3 55. Ke1 g4 56. Kf1 g3 57. Ke1 Nb5 58. c7 Nxc7 59.
Kd2 g2 60. Kc3 g1=Q 61. Kb4 Qc1 62. Kb3 Na8 63. Kb4 Nb6 64. Kb5 Nd5 65. Ka4 Qb1
66. Ka5 Qb6+ 67. Ka4 Qb4#) 52... Kf5 53. Kf3 Nd5 54. Kg3 (54. Ke2 {hardly
improves anything} g4 55. Kd3 Ke5 56. c7 Nxc7 57. Ke3 Ne6 58. Ke2 Ke4 59. Kf2
Kf4 60. Ke1 g3 61. Kf1 Kf3 62. Ke1 g2 63. Kd1 g1=Q+ 64. Kc2 Qc5+ 65. Kb2 Nd4
66. Ka1 Qc1+ 67. Ka2 Qc2+ 68. Ka3 Qb3#) 54... g4 55. Kg2 (55. Kf2 {does not
solve anything} Kf4 56. c7 g3+ 57. Ke2 Nxc7 58. Kf1 Kf3 59. Ke1 g2 60. Kd2 g1=Q
61. Kd3 Qc5 62. Kd2 Qc4 63. Kd1 Ke3 64. Ke1 Qe2#) 55... Kf4 56. Kf2 (56. Kf1 {
is not much help} g3 57. c7 Nxc7 58. Ke2 Ne6 59. Kd1 g2 60. Ke2 g1=Q 61. Kd2
Qc5 62. Kd3 Nd4 63. Kd2 Qc2+ 64. Ke1 Qe2#) 56... g3+ 57. Kg2 (57. Ke2 {is not
the saving move} Nc7 58. Kf1 Kf3 59. Ke1 g2 60. Kd1 g1=Q+ 61. Kc2 Qc5+ 62. Kb2
Ke3 63. Kb3 Kd3 64. Kb2 Qb6+ 65. Ka2 Kc3 66. Ka3 Qa7#) 57... Nc7 58. Kg1 (58.
Kh3 {does not solve anything} Kf3 59. Kh4 g2 60. Kg5 g1=Q+ 61. Kf5 Qc5+ 62. Kf6
Qf8+ 63. Kg6 Ne6 64. c7 Qg7+ 65. Kf5 Nd4#) 58... Kf3 59. Kf1 (59. Kh1 {does
not win a prize} Nd5 60. Kg1 g2 61. c7 Nf4 62. c8=Q Ne2+ 63. Kh2 g1=Q+ 64. Kh3
Qg3#) 59... g2+ 60. Kg1 (60. Ke1 {is not the saving move} g1=Q+ 61. Kd2 Qc5 62.
Kd3 Nd5 63. Kd2 Qc3+ 64. Kd1 Ne3#) 60... Nd5 61. c7 Nxc7 (61... Nxc7 62. Kh2
Kf2 63. Kh3 g1=Q 64. Kh4 Qg6 65. Kh3 Qg3#) (61... Nf4 62. c8=Q Ne2+ 63. Kh2
g1=Q+ 64. Kh3 Qg3#) 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.31"]
[Round "5.4"]
[White "Ito, Katsuhide"]
[Black "Kanamaru, Tomoji"]
[Result "0-1"]
[ECO "C14"]
[WhiteElo "1449"]
[BlackElo "1586"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "72"]

{C14: French: Classical System: 4 Bg5 Be7 main line} 1. e4 e6 2. d4 d5 3. Nc3
Nf6 4. Bg5 Be7 {Black has a cramped position} 5. f4 $146 {Loses material} (5.
Qd2 h6 6. Bxf6 Bxf6 7. O-O-O O-O 8. Nf3 b6 9. e5 Be7 10. g4 c5 11. Rg1 Nc6 12.
g5 h5 13. Qf4 g6 14. dxc5 bxc5 15. Ne4 Rb8 16. Nf6+ Kg7 17. Bd3 Rb4 18. c4 Rh8
19. a3 Ra4 {Panopio,R (2179)-Senador,E (2408) Ho Chi Minh City 2011 1-0 (33)})
(5. e5 $142 $5 {should be considered} Nfd7 6. Bxe7 Qxe7 7. f4 $11) 5... Nxe4
$17 {The black knight on an outpost} 6. Bxe7 Qxe7 7. Qf3 Qb4 8. O-O-O Nxc3 9.
Qxc3 Qxc3 10. bxc3 b6 11. Nf3 f6 12. c4 c6 13. Bd3 Ba6 14. c5 {White gets more
space} (14. Rhe1 $5 Kf7 15. Nd2 $15) 14... Bxd3 $17 15. Rxd3 Nd7 16. Re1 Kf7
17. Rde3 Rhe8 18. f5 $2 (18. Rb3 $142 $5 $17) 18... exf5 $19 19. cxb6 (19. Ra3
Rxe1+ 20. Nxe1 bxc5 21. dxc5 Nxc5 $19) 19... axb6 20. Kb2 c5 (20... f4 {
and Black can already relax} 21. R3e2 $19) 21. g3 (21. Rxe8 Rxe8 22. Rxe8 Kxe8
$19) 21... c4 22. h4 (22. Nh4 g6 23. Ng2 $19) 22... b5 $4 {releasing the
pressure on the opponent} (22... Nf8 $142 $19 {keeps an even firmer grip}) 23.
Kc3 $4 {cause more grief} (23. Rxe8 $142 Rxe8 24. Rxe8 Kxe8 25. Kc3 $17) 23...
Ra3+ $19 24. Kd2 Rexe3 25. Rxe3 Rxa2 26. h5 (26. Kc1 {does not save the day} b4
27. Kb1 Ra6 $19) 26... b4 27. Nh4 g6 28. g4 (28. Kd1 $19 {is the last straw})
28... fxg4 29. hxg6+ (29. Kc1 {cannot change what is in store for ?} f5 30.
hxg6+ hxg6 $19) 29... hxg6 30. Rg3 f5 (30... b3 31. Kc1 Rxc2+ 32. Kb1 f5 33.
Ng2 Nf6 34. Ne1 Rd2 35. Rg2 c3 36. Rxd2 cxd2 37. Ng2 d1=Q+ 38. Kb2 Qc2+ 39. Ka3
Qa2+ 40. Kb4 b2 41. Kb5 b1=Q+ 42. Kc5 Qc4+ 43. Kd6 Qb8#) 31. Ng2 b3 32. Kc1
Rxc2+ 33. Kb1 (33. Kd1 {doesn't change the outcome of the game} Nf6 34. Ne1 Ne4
35. Nxc2 bxc2+ 36. Kxc2 Nxg3 37. Kd1 Ne4 38. Kc2 g3 39. Kb1 g2 40. Ka1 g1=Q+
41. Ka2 Qxd4 42. Ka3 Qb6 43. Ka4 Nd2 44. Ka3 Qb3#) 33... Nf6 34. Nf4 (34. Ne1 {
is no salvation} Ne4 35. Nxc2 bxc2+ 36. Kxc2 Nxg3 37. Kb2 Ne4 38. Ka3 g3 39.
Kb4 g2 40. Kb5 g1=Q 41. Kb6 Qb1+ 42. Kc6 Ke8 43. Kc7 Ke7 44. Kc6 Qb8 45. Kxd5
Qb5#) 34... Ne4 35. Rg1 (35. Ka1 {doesn't do any good} Nd2 36. Rxb3 cxb3 37.
Nxd5 Ra2#) 35... Nc3+ 36. Ka1 Ra2# 0-1

[Event "SapporoSummer2016"]
[Site "?"]
[Date "2016.07.31"]
[Round "5.5"]
[White "Nakamura, Mitsuru"]
[Black "Yamamoto, Eisei"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "1554"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "52"]

{C01: French: Exchange Variation} 1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. c3 Nc6 5.
d4 Nf6 $146 (5... Bd6 6. Bg5 Nge7 7. Bd3 Bg4 8. Nbd2 Qd7 9. O-O (9. Qc2 Qe6+
10. Kd1 f6 11. Re1 Qd7 12. Be3 O-O-O 13. h3 Bf5 14. b4 Rde8 15. Nb3 Bxd3 16.
Qxd3 Qf5 17. Kc2 g5 18. Re2 h5 19. Rae1 Qxd3+ 20. Kxd3 Ng6 21. b5 Nd8 22. c4 g4
23. hxg4 dxc4+ {Grabert,R (2240)-Schmidt,P (2395) Schwanstetten 1994 1/2-1/2 
(35)}) 9... O-O 10. Re1 Rae8 11. Qc2 {1/2-1/2 (11) Blatny,P (2515)-Dreev,A 
(2590) Brno 1992}) (5... Bg4 6. h3 (6. Bb5 Bd6 7. h3 Bh5 8. O-O Nge7 9. Bd3 Qd7
10. b4 Bg6 11. a4 O-O 12. Na3 Bxd3 13. Qxd3 Ng6 14. Nb5 Be7 15. Na3 Nd8 16. Nc2
c6 17. Re1 Ne6 18. Ne5 Nxe5 19. dxe5 a5 20. f4 f5 {Grigore,N (2185)-Anapolsky,
S (2445) Romania 1994 0-1 (50)}) 6... Bh5 7. Bf4 Qe7+ 8. Be3 O-O-O 9. Bb5 Qd6
10. Bxc6 bxc6 11. Nbd2 f5 12. Qa4 Bxf3 13. Nxf3 Kb7 14. Ne5 Qe6 15. O-O Nf6 16.
Rfe1 Nd7 17. Bg5 Rb8 18. Nc4 Qg6 19. Na5+ Kb6 20. Be7 {Varholakova,N (2200)
-Peitl,T (2220) Slovakia 2013 1-0}) 6. Bd3 Bg4 (6... Bd6 7. O-O $11) 7. Bg5 (7.
O-O Be7 $14) 7... Be7 8. Nbd2 Qd7 9. O-O {White castles and improves king
safety} O-O-O (9... h6 10. Bh4 $14) 10. Qe1 (10. h3 $5 {should be examined
more closely} Bxh3 11. gxh3 Qxh3 12. Re1 Qg4+ 13. Kf1 $16) 10... h6 $11 {
Black threatens to win material: h6xg5} 11. Bh4 g5 12. Bg3 Nh5 {Black has an
active position} 13. Be5 (13. b4 Bd6 $11) 13... f6 $15 14. Bg3 Nxg3 15. fxg3 h5
16. h3 {White threatens to win material: h3xg4} (16. Qf2 Kb8 $11) 16... Be6 $15
17. Nb3 g4 {Black gets more space} (17... Rde8 $142 $15) 18. Nc5 $4 (18. hxg4
$142 {would bring relief} Bxg4 19. Nh4 $11) 18... Bxc5 $19 19. dxc5 gxf3 20.
gxf3 (20. Rxf3 {desperation} Ne5 21. Rxf6 Nxd3 22. Qxe6 Qxe6 23. Rxe6 Nxc5 24.
Re2 $19) 20... Bxh3 21. Rf2 Rdg8 22. Kh2 Ne5 23. Bf1 (23. Qe2 {cannot undo
what has already been done} Kb8 24. Rg1 Ng4+ 25. fxg4 hxg4 $19) 23... Be6 (
23... Bg4 $142 {might be the shorter path} 24. c6 Qxc6 $19) 24. a4 (24. Be2 {
doesn't change anything anymore} h4 25. g4 f5 $19) 24... h4 (24... Qg7 $142 {
seems even better} 25. Qxe5 fxe5 $19) 25. Rg2 (25. g4 {hoping against hope} h3
$1 {Decoy: h3} 26. Bb5 $19) 25... hxg3+ 26. Kg1 Nxf3# 0-1

