[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "1.1"]
[White "Kaga, Kazuyuki"]
[Black "kuramoto, koutarou"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "1481"]
[BlackElo "1775"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "82"]
[EventDate "2025.10.12"]

{[%mdl 8192] B43: Sicilian: Kan Variation: 5 Nc3} 1. e4 c5 2. Nc3 e6 3. Nf3 a6
4. d4 cxd4 5. Nxd4 Qc7 6. Bd3 Nf6 7. O-O b5 8. Re1 Bc5 9. Nf3 d6 10. h3 Bb7 11.
Bg5 Nbd7 12. Qd2 O-O $146 {White has an active position} (12... h6 13. Bf4 e5
14. Be3 Bxe3 15. Rxe3 Bc6 16. a3 Nc5 17. Rae1 Rd8 18. b4 Nxd3 19. cxd3 O-O 20.
Nh4 Kh7 21. Rf3 Ng8 22. Nf5 Ne7 23. Rc1 Nxf5 24. Rxf5 Qb7 25. Nd1 Bd7 26. Rf3
Be6 27. Ne3 {Sivuk,V (2324)-Grinev,V (2297) Ilichevsk 2008 0-1 (73)}) 13. Qf4 {
[%cal Ye4e5] White prepares e5} h6 14. Bxh6 gxh6 15. Qxh6 Nh7 $4 {weakening
the position} (15... Rfd8 $142 $5 $17) 16. e5 (16. Ng5 $142 {and White has
reached his goal} Nxg5 17. Qxg5+ Kh8 18. Nd5 Bxd5 19. exd5 $18) 16... f5 $11
17. exf6 (17. exd6 $5 {might be a viable alternative} Bxd6 18. Rxe6 $11) 17...
Ndxf6 $15 18. Rxe6 Qg7 $4 {gives the opponent counterplay} (18... Bxf3 $142 {
would bring relief} 19. gxf3 Qg7+ 20. Qxg7+ Kxg7 $15) 19. Bxh7+ $16 Qxh7 20.
Rxf6 Rxf6 (20... Qxh6 21. Rxh6 Rae8 22. Rh4 $16) 21. Qxf6 Rf8 22. Qe6+ Kh8 23.
Nd5 Qg7 24. Rd1 $4 {lets it slip away} (24. Kf1 $142 $18 {White clearly has
the better chances}) 24... Rxf3 $17 25. Qe8+ Rf8 26. Qh5+ Qh7 27. Qxh7+ Kxh7
28. Rd2 (28. Ne3 $5 $17) 28... Bxd5 $19 29. Rxd5 Rxf2 $4 {forfeits the clear
win.} (29... Bxf2+ $142 30. Kh2 Be3 $19) 30. Kh2 (30. Rxc5 $142 {secures
victory} Rd2 31. Rc7+ Kg6 32. b4 $18) 30... Rxc2 $19 31. Rf5 (31. a4 {does not
save the day} Rxb2 32. axb5 axb5 $19) 31... Kg6 (31... Rxb2 {makes it even
easier for Black} 32. Rf7+ Kg6 33. Rb7 $19) 32. Rf3 (32. Rf8 {doesn't change
anything anymore} Rxb2 33. Rg8+ Kf7 $19) 32... Rxb2 33. Rg3+ Kf5 34. h4 (34.
Rf3+ {cannot change destiny} Ke4 35. h4 Rxa2 $19) 34... d5 (34... Rxa2 $142 {
keeps an even firmer grip} 35. h5 b4 36. h6 $19) 35. Rg5+ Kf4 36. Rxd5 (36. Kh3
{does not help much} Rxa2 37. Rxd5 Ra3+ 38. Kh2 Bf2 $19) 36... Bf2 37. h5 Kg4
38. Rd1 (38. Rd3 {cannot change what is in store for White} Kxh5 39. Kh3 Rxa2
40. Rd5+ Kg6 $19) 38... Bg3+ 39. Kg1 Kxh5 40. a3 Ra2 41. Rd3 (41. Kf1 {the
last chance for counterplay} Rxa3 42. Ke2 $19) 41... Ra1+ (41... Ra1+ 42. Rd1
Rxd1#) 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "1.2"]
[White "Yoshii, Yukihiko"]
[Black "Denta, Seiichi"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "1753"]
[BlackElo "1376"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "73"]
[EventDate "2025.10.12"]

{[%mdl 8256] A36: Symmetrical English vs ...g6: 4 Bg2 Bg7} 1. c4 c5 2. Nc3 Nf6
3. g3 e6 4. Bg2 Nc6 5. e3 a6 (5... d5 6. d3 Be7 7. Nge2 O-O 8. cxd5 exd5 9. O-O
d4 10. exd4 cxd4 11. Ne4 Bf5 12. Bd2 Qd7 13. Rc1 Rfe8 14. Re1 Nxe4 15. dxe4 Bg4
16. f3 Be6 17. Nf4 Rad8 18. Nd3 f6 19. a3 Ne5 20. Bf1 {Dlugy,M (2531)-Kramnik,
V (2751) ICC INT 1999 1/2-1/2 (42)}) 6. Nge2 d6 $146 (6... d5 7. Nxd5 exd5 8.
O-O Be7 9. d4 dxc4 10. a3 O-O 11. Nc3 Be6 12. Qf3 Bg4 {1/2-1/2 (12) Martinez
Romero,M (2395)-Agudelo,A (2253) Bogota 2013}) 7. d4 Be7 8. O-O O-O 9. b3 Rb8
10. Bb2 Bd7 11. Qd2 b5 12. cxb5 axb5 13. Rac1 (13. dxc5 $5 dxc5 14. Rad1 $14)
13... c4 $15 {Black wins space} 14. d5 {White threatens to win material: d5xc6}
Ne5 15. Rc2 (15. dxe6 fxe6 16. Ne4 Nd3 17. Nxf6+ Bxf6 (17... Rxf6 $143 18. Bxf6
Nxc1 19. Bxe7 (19. Qxc1 $6 gxf6 20. bxc4 Rc8 $11) 19... Nxe2+ 20. Qxe2 Qxe7 21.
bxc4 $16) 18. Bxf6 Rxf6 $15 (18... gxf6 $143 19. Rc2 $14)) 15... Nd3 (15... b4
$142 16. Ne4 Nxe4 17. Bxe4 c3 18. Nxc3 bxc3 19. Rxc3 Ng4 $17) 16. Nf4 $2 (16.
dxe6 fxe6 17. bxc4 bxc4 18. Nf4 $17) 16... Nc5 $4 {hands over the advantage to
the opponent} (16... Nxb2 $142 {Black has a promising position} 17. Rxb2 b4 18.
dxe6 fxe6 (18... bxc3 $6 19. exf7+ Rxf7 20. Qxc3 $17) 19. bxc4 bxc3 20. Qxc3
Rxb2 21. Qxb2 Qc7 $19) 17. b4 $11 Na4 (17... Na6 $142 $5 {and Black can hope
to survive} 18. dxe6 fxe6 $11) 18. Nxa4 $16 bxa4 19. a3 (19. Bxf6 Bxf6 20. dxe6
fxe6 21. Rxc4 g5 $16) 19... e5 20. Ne2 Bb5 21. Nc3 h6 $4 (21... Bd7 $142 $14 {
had to be tried to avoid defeat}) 22. Nxb5 $18 Rxb5 23. Rxc4 Qd7 24. Rfc1 Rb7
25. Qc2 Bd8 26. Rc6 Bb6 (26... Ra7 {is not much help} 27. Qd3 $18) 27. Qxa4 Ra7
(27... Ng4 {doesn't do any good} 28. Qa6 Rfb8 29. Qd3 $18) 28. Qc2 Rb7 29. h3 (
29. a4 {makes it even easier for White} Rfb8 $18) 29... g6 (29... Rfb8 {
cannot undo what has already been done} 30. Bc3 $18) 30. Kh2 (30. a4 {might be
the shorter path} Rfb8 $18) 30... Kg7 (30... h5 {does not solve anything} 31.
a4 Rfb8 32. Ba3 $18) 31. Qc3 (31. f4 {seems even better} Re8 32. fxe5 dxe5 $18)
31... Re8 {[%cal Ye5e4] Black prepares the advance e4} (31... Ng8 {doesn't
improve anything} 32. a4 Ne7 33. a5 $18) 32. f4 Kh7 (32... h5 {is no salvation}
33. Rf1 Bd8 34. fxe5 dxe5 35. Qc5 $18) 33. fxe5 dxe5 (33... Rxe5 {there is
nothing else anyway} 34. Qc2 Ne8 35. Bxe5 dxe5 $18) 34. Rxf6 e4 (34... Bd8 {
no good, but what else?} 35. Rc6 h5 $18) 35. Bxe4 (35. Rd6 Rg8 36. Rxd7 Rxd7
37. Qc6 Re7 38. Qxb6 Rge8 39. Qf6 Rg8 40. Qxe7 h5 41. Qxf7+ Kh6 42. h4 g5 43.
Qxg8 gxh4 44. Rc6#) 35... Rxe4 36. Rxf7+ $1 {Clearance: f6.} Qxf7 (36... Qxf7
37. Qh8# {Mate attack Clearance}) 37. Qh8# 1-0

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "1.3"]
[White "Yajima, Machiko"]
[Black "Nishimori, Toshiyuki"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1327"]
[BlackElo "1699"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "109"]
[EventDate "2025.10.12"]

{[%mdl 8192] D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6
3 Bf4} 1. d4 Nf6 2. Nf3 d5 3. Bf4 g6 4. g3 $146 (4. c3 Bg7 5. e3 O-O 6. h3 (6.
Nbd2 b6 7. Bd3 Bb7 8. O-O c5 9. Qe2 e6 10. h3 Qe7 11. a3 Nfd7 12. e4 Re8 13.
Rfe1 cxd4 14. cxd4 dxe4 15. Nxe4 Nf6 16. Nd6 Rd8 17. Nxb7 Qxb7 18. Rac1 Nd5 19.
Bg3 a6 20. Ne5 Qe7 {Szekely,P (2465)-Beliavsky,A (2645) Hungary 1998 1/2-1/2})
6... b6 7. Nbd2 Bb7 (7... c5 8. b4 Bb7 9. bxc5 bxc5 10. Qa4 Nbd7 11. Be2 Ne4
12. Nxe4 dxe4 13. Nd2 cxd4 14. cxd4 e5 15. dxe5 Nxe5 16. Bxe5 Bxe5 17. Rd1 Qe8
{1/2-1/2 (17) Dresen,U (2300)-Brueckner,T (2345) Germany 1987}) 8. a4 c5 9. Ne5
Nc6 10. Nxc6 Bxc6 11. Bb5 Bb7 12. Be2 Nd7 13. Nf3 e5 14. dxe5 Qe7 15. a5 Nxe5
16. Bxe5 Bxe5 17. Qa4 d4 18. cxd4 cxd4 {Petrovic,M (2221)-Dimitrijevic,A (2295)
Belgrade 2005 0-1 (75)}) (4. e3 Nh5 5. Bg5 h6 6. Bh4 g5 7. Nfd2 Nf6 8. Bg3 Nc6
9. h4 g4 10. Bb5 Bd7 11. Nc3 a6 12. Ba4 e6 13. Ne2 Nh5 14. Nf4 Nxg3 15. fxg3 h5
16. c3 Bd6 17. e4 dxe4 18. Nxe4 Qe7 {Zalai,M (2158)-Farago,S (2234) Hungary
2012 0-1 (47)}) 4... Bg7 5. Bg2 c6 6. Qc1 O-O 7. Bh6 (7. Nc3 Bf5 $11) 7... Bf5
(7... Bxh6 $5 {is worth consideration} 8. Qxh6 Qb6 $17) 8. Bxg7 $11 Kxg7 {
Black king safety dropped} 9. Nc3 Nbd7 10. Nh4 Be6 11. O-O Nb6 12. b3 {
Controls a4+c4} Rc8 13. Qe3 Ng4 {Black threatens to win material: Ng4xe3} (
13... Qd6 14. Qd2 $11) 14. Qf3 (14. Qd2 Nf6 $11) 14... h5 (14... c5 15. Qd3
cxd4 16. Qxd4+ Nf6 17. a4 $11) 15. h3 {White threatens to win material: h3xg4}
(15. Qd3 Nf6 $14) 15... Nh6 16. Qd3 Qd7 17. f3 $4 {forfeits the advantage} (17.
a4 $142 $5 $11 {and White has air to breath}) 17... Bxh3 $4 {throwing away the
advantage} (17... g5 $142 $19 {might be the shorter path}) 18. Qe3 (18. f4 Bg4
$17) 18... Bxg2 (18... Qd6 19. f4 Bxg2 20. Kxg2 $17) 19. Nxg2 (19. Kxg2 $142 $5
e6 20. g4 $17) 19... Nf5 $19 20. Qf4 Rce8 (20... c5 21. dxc5 Rxc5 22. g4 $19)
21. g4 hxg4 22. fxg4 Nh6 23. Nh4 $2 (23. Ne3 $142 f6 24. g5 fxg5 25. Qxg5 $17)
23... Qxg4+ $19 24. Qxg4 (24. Ng2 g5 25. Qxg4 Nxg4 $19) 24... Nxg4 25. Rf3 (25.
Nf3 {doesn't change anything anymore} Rh8 $19) 25... Rh8 26. Ng2 Nd7 27. Raf1 (
27. Rg3 {cannot change what is in store for White} f5 $19) 27... f6 (27... f5 {
keeps an even firmer grip} 28. Rg3 e5 29. dxe5 Ndxe5 30. Rf4 $19) 28. e4 (28.
Rg3 {doesn't change the outcome of the game} f5 $19) 28... Nh2 (28... dxe4 $5 {
makes it even easier for Black} 29. Rg3 Nh2 30. Rf5 Nf3+ 31. Kf2 Nxd4 32. Rf4
$19) 29. exd5 Nxf1 30. Kxf1 cxd5 31. Nxd5 Rh1+ 32. Ke2 Ra1 (32... e5 {and
Black can already relax} 33. dxe5 Nxe5 34. Rg3 $19) 33. a4 (33. Rc3 {a
fruitless try to alter the course of the game} Nf8 34. Rc7 $19) 33... Nb6 (
33... e5 {might be the shorter path} 34. Re3 $19) 34. Nc7 $2 (34. Nxb6 $142
axb6 35. Rc3 $19) 34... Rc8 35. Ne6+ (35. Nf4 {is not the saving move} Kf7 (
35... Rxc7 $6 {is the less attractive alternative} 36. Ne6+ Kf7 37. Nxc7 $17)
36. Rc3 Rh1 $19) 35... Kg8 (35... Kf7 {seems even better} 36. Nc5 Nd7 37. Rc3
$19) 36. Nc5 (36. Ne3 Rc6 37. Nf4 g5 $19) 36... Nd5 (36... Nd7 $142 {might be
the shorter path} 37. Rc3 Rh1 $19) 37. Kd3 (37. c4 {praying for a miracle} b6
38. Na6 $19) 37... b6 38. Ne4 (38. Ke4 {does not win a prize} Nb4 39. Nd3 Nxc2
$19) 38... f5 (38... Nb4+ $5 {and Black can already relax} 39. Ke3 Rxc2 40. Nd2
$19) 39. c4 (39. Nd2 {does not improve anything} Rc3+ 40. Ke2 Rxc2 $19) 39...
Nb4+ 40. Ke3 fxe4 41. Kxe4 Re1+ (41... Rf8 $142 {seems even better} 42. Rg3 Kg7
43. Ne3 $19) 42. Kf4 $4 {makes life more difficult} (42. Nxe1 $142 {would be a
reprieve} Kg7 43. Re3 $14) 42... Rg1 (42... Rf8+ {keeps an even firmer grip}
43. Kg3 Rxf3+ 44. Kxf3 $19) 43. Ne3 {[%cal Yd4d5] White intends d5} (43. Kg3 {
doesn't get the bull off the ice} Nc2 44. Kf2 Rd1 $19) 43... Rf8+ 44. Ke4 {
[%cal Yd4d5] White plans d5} Rxf3 45. Kxf3 Nc6 46. d5 (46. Ke4 {hardly
improves anything} Rb1 $19) 46... Nd4+ 47. Kf2 Rb1 48. d6 (48. a5 {doesn't get
the cat off the tree} bxa5 49. c5 Rb2+ 50. Kg3 Rxb3 $19) 48... exd6 49. Nd5
Rxb3 50. Ne7+ Kf7 51. Nc8 Nf5 52. Nxa7 Rb4 (52... g5 53. Kf1 g4 54. Ke2 g3 55.
Nb5 Rb2+ 56. Kf3 g2 57. a5 g1=Q 58. Nxd6+ Ke6 59. c5 Qg3+ 60. Ke4 Re2#) 53. c5
dxc5 54. Nc6 Rxa4 55. Ne5+ 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "1.4"]
[White "Furuse, Mizuki"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "1584"]
[BlackElo "1307"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "75"]
[EventDate "2025.10.12"]

{[%mdl 8256] A13: English Opening: 1...e6} 1. Nf3 e6 2. g3 d5 3. Bg2 Nf6 4. c4
Nc6 5. O-O Be7 6. cxd5 exd5 7. d4 O-O 8. Nc3 Be6 $146 {Black has an active
position} (8... Ne4 9. Bf4 Nxc3 10. bxc3 Na5 11. Nd2 c6 12. Qc2 Be6 13. Rfe1 h6
14. Rab1 Bd6 15. Bxd6 Qxd6 16. e4 dxe4 17. Nxe4 Qc7 18. Nc5 Bd5 19. Re2 b6 20.
Nd3 Rae8 21. Rbe1 Rxe2 22. Qxe2 Bxg2 23. Kxg2 {Mkrtchian,L (2459)
-Charkhalashvili,I (2318) Chakvi 2015 1-0 (48)}) 9. Ne5 Qd6 (9... h5 10. h4 $14
) 10. Bf4 $16 a6 {Prevents intrusion on b5} (10... Qb4 $5 $16) 11. Ng6 $1 {
Discovered attack: e5, Bf4xd6} Qd7 (11... fxg6 12. Bxd6 {Discovered attack}) (
11... hxg6 12. Bxd6 {Discovered attack}) 12. Nxf8 Rxf8 13. Be5 (13. Rc1 h6 $16)
13... Nh5 (13... Ng4 $5 14. e4 Ncxe5 15. exd5 Bf5 16. dxe5 Nxe5 $16) 14. e4 $18
Bg4 $2 (14... dxe4 $142 15. Bxe4 g6 $18) 15. f3 Bh3 16. Nxd5 Bxg2 17. Kxg2 Nxe5
(17... Bd8 {is not the saving move} 18. Qb3 Na5 19. Qb4 $18) 18. dxe5 Bc5 (
18... c6 {cannot change destiny} 19. Nxe7+ Qxe7 20. f4 $18) 19. g4 (19. Rc1
$142 $5 {keeps an even firmer grip} Qb5 20. b4 Bxb4 $18) 19... c6 20. gxh5 cxd5
21. exd5 Qf5 22. f4 g5 23. h3 (23. hxg6 {seems even better} hxg6 24. Rf3 Qg4+
25. Kh1 Rc8 $18) 23... gxf4 (23... Be3 {what else?} 24. fxg5 Qxe5 $18) 24. Qg4+
Qxg4+ 25. hxg4 Be3 (25... Bd4 {doesn't improve anything} 26. Rae1 Rd8 27. Re2
$18) 26. Kf3 Rc8 27. Rad1 Kg7 (27... Kf8 {a fruitless try to alter the course
of the game} 28. Rd3 $18) 28. d6 Rd8 (28... Kf8 {cannot undo what has already
been done} 29. Rd3 $18) 29. Rd3 Kf8 (29... Kh6 {does not help much} 30. Rfd1
$18) 30. g5 Ke8 (30... Kg7 {doesn't get the cat off the tree} 31. Ke4 $18) 31.
Ke4 Kd7 (31... b5 {does not win a prize} 32. b4 Kd7 33. Rxe3 fxe3 34. Rxf7+ Kc6
35. Kxe3 $18) 32. Kd5 Rc8 (32... Rg8 33. Rxe3 $1 {Decoy: e3} fxe3 34. Rxf7+ Kc8
35. Rc7+ Kb8 $18) 33. Rc3 (33. Rxe3 Rc2 34. Rxf4 Rd2+ 35. Ke4 b6 36. Rxf7+ Kc6
37. Rd3 Rh2 38. d7 Rc2 39. d8=Q Rc4+ 40. Rd4 Rxd4+ 41. Qxd4 Kb5 42. Rb7 h6 43.
Rxb6+ Ka5 44. Qb4#) 33... Rg8 34. Rc7+ Kd8 35. Rxf7 (35. Rxb7 Kc8 36. Kc6 Bd2
37. d7+ Kd8 38. Kd6 Bb4+ 39. Rxb4 Rg6+ 40. hxg6 hxg6 41. Rb8#) 35... Rxg5 36.
Rxh7 Rg2 37. Rh8+ Kd7 (37... Rg8 {is no salvation} 38. Rxg8+ Kd7 39. e6#) 38.
e6# 1-0

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "1.5"]
[White "Uematsu, Maya"]
[Black "Nakamura, Mitsuru"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1269"]
[BlackElo "1579"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "64"]
[EventDate "2025.10.12"]

{[%mdl 8192] D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6
3 Bf4} 1. d4 Nf6 2. Bf4 d5 3. Nf3 Bf5 4. Nbd2 e6 5. h3 c5 (5... h6 6. e3 Be7 7.
Ne5 Nbd7 8. g4 Bh7 9. Bg2 c6 10. O-O O-O 11. c4 {1/2-1/2 (11) Rakic,T (2455)
-Bukic,E (2500) Skender Vakuf 1980}) 6. c3 Nc6 7. e3 Bd6 8. Be2 $146 (8. Bxd6
Qxd6 9. Bb5 Nd7 10. Nh4 Bg6 11. O-O a6 12. Bxc6 bxc6 13. Nxg6 hxg6 14. Qa4 f6
15. c4 cxd4 16. cxd5 cxd5 17. exd4 Kf7 18. Rac1 Rhc8 19. Rc2 Nb6 20. Rxc8 Nxa4
21. Rxa8 Qc6 22. Ra7+ Kg8 {Gaerths,R (2285)-Hermann,M (2395) Germany 1993 1-0 
(109)}) (8. Qb3 $5 {is an interesting idea} Rb8 9. Bxd6 Qxd6 10. Qa3 $11) 8...
Bxf4 $15 9. exf4 O-O (9... cxd4 10. Nxd4 Nxd4 11. cxd4 $15) 10. O-O (10. dxc5
Qc7 $11) 10... cxd4 $17 11. Nxd4 Nxd4 12. cxd4 Qc7 13. Qb3 Qxf4 14. Nf3 b6 (
14... Rac8 $5 $17) 15. Rac1 $15 h6 {Covers g5} 16. Rfd1 Qd6 (16... Rfc8 17. Qe3
Qxe3 18. fxe3 $15) 17. Ne5 {White has an active position} Rac8 18. Qe3 (18. g4
Bh7 $15) 18... Nd7 $17 19. Bd3 Nxe5 20. dxe5 Qd7 21. Bxf5 exf5 22. Qd4 Rxc1 23.
Rxc1 Qe6 24. b4 Re8 25. Re1 (25. f4 Rc8 26. Rd1 Rc4 27. Qxd5 Rxb4 28. Qxe6 fxe6
29. Rd8+ Kh7 $15) 25... Rc8 (25... f4 $17) 26. b5 $2 (26. Rd1 $142 $5 $15 {
is interesting}) 26... Rc4 $17 27. Qe3 $2 (27. Qd3 $142 $17) 27... Re4 $19 28.
Qc3 (28. Qc1 Rxe1+ 29. Qxe1 $19) 28... d4 29. Qd2 Qxe5 30. Rxe4 (30. Rf1 {
doesn't change the outcome of the game} Re2 31. Qd3 Qe4 32. Qxe4 fxe4 $19 (
32... Rxe4 $6 33. Rd1 $19)) 30... fxe4 31. a4 (31. Qb2 {is not much help} Qc5
32. Kf1 d3 $19) 31... f5 (31... d3 32. Qc1 f5 33. Qc8+ Kh7 34. Qd7 $19) 32. Kf1
(32. g4 $19 {otherwise it's curtains at once}) 32... f4 (32... f4 33. f3 Kf7
34. Qa2+ Qe6 $19) 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "1.6"]
[White "Shishido, Kenta"]
[Black "Kawashima, Tsukasa"]
[Result "0-1"]
[ECO "C62"]
[WhiteElo "1483"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "106"]
[EventDate "2025.10.12"]

{[%mdl 8192] C62: Ruy Lopez: Steinitz Defence} 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4.
d4 exd4 5. Nxd4 Bd7 6. O-O Ne5 $146 (6... g6 7. b3 Bg7 8. Bb2 Nf6 9. Re1 (9.
Nd2 O-O 10. Bxc6 bxc6 11. Rb1 Re8 12. Re1 d5 13. e5 Nh5 14. N4f3 Nf4 15. Nf1
Qe7 16. Ne3 Red8 17. Qd2 Be8 18. Ng4 Ne6 19. Nf6+ Kh8 20. Ng5 Nxg5 21. Qxg5 h6
22. Qh4 g5 23. Qh3 d4 {Boric,M (2345)-Knezevic,M (2430) Pula 1991 1/2-1/2 (46)}
) 9... Nxd4 10. Bxd7+ Nxd7 11. Bxd4 Bxd4 12. Qxd4 Qf6 13. Qxf6 Nxf6 14. c4
O-O-O 15. Nc3 Rhe8 16. Rad1 a6 17. f3 h5 18. Kf2 c6 19. b4 Kc7 20. c5 {1/2-1/2
(20) Pokojowczyk,J (2345)-Schinzel,W (2375) Polanica Zdroj 1977}) (6... Nf6 7.
Re1 Be7 8. c4 (8. Bxc6 bxc6 9. c4 O-O 10. Nc3 c5 11. Nc2 Bc6 12. Nd5 Nxd5 13.
cxd5 Bd7 14. Ne3 Bf6 15. Qc2 Rb8 16. Rb1 Bd4 17. Bd2 f5 18. exf5 Qf6 19. Bc3
Bxf5 20. Nxf5 Qxf5 21. Qxf5 Rxf5 22. Bxd4 cxd4 {Makk,R (2222)-Gergacz,A (2417)
Zalakaros 2010 0-1 (31)}) 8... O-O 9. Nxc6 bxc6 10. Ba4 Ng4 11. h3 Ne5 12. Qe2
f5 13. exf5 Rxf5 14. Nc3 Bh4 15. Rf1 Rf7 16. c5 Qf6 17. Bc2 d5 18. b3 Re8 19.
f4 Ng6 20. Qd2 Rfe7 21. Bb2 {Szieberth,A (2421)-Sherzer,A (2472) Hungary 2001
0-1 (39)}) (6... Nxd4 7. Bxd7+ Qxd7 8. Qxd4 Ne7 9. b3 Nc6 10. Qe3 O-O-O 11. c4
Re8 12. Nc3 Be7 13. Nd5 f5 14. Bb2 fxe4 15. b4 Kb8 16. b5 Na5 17. Qe2 c6 18.
bxc6 bxc6 19. Nb4 Bf6 20. Rab1 Ka8 21. Rfd1 {Rooze,J (2369)-Orev,P (2179)
Plovdiv 2013 1-0 (37)}) (6... g6 7. Re1 Bg7 8. Nxc6 bxc6 9. Bc4 $14) 7. Bxd7+
Qxd7 8. Nf5 (8. Nc3 $5 $16) 8... g6 {Black threatens to win material: g6xf5} 9.
Ng3 Nf6 10. Bf4 O-O-O (10... h5 11. h4 $11) 11. Nc3 h5 12. h3 {Secures g4} Bh6
13. Bxh6 Rxh6 14. Nd5 (14. Qd4 c5 15. Qe3 Rhh8 $11) 14... Nxd5 15. exd5 f5 16.
Qd2 {White threatens to win material: Qd2xh6} Rdh8 (16... Rh7 17. a4 $11) 17.
b3 {Consolidates c4} (17. Rfe1 Kb8 $14) 17... h4 {Black threatens to win
material: h4xg3} (17... Qf7 18. f4 Nd7 19. Rae1 $11) 18. Ne2 $14 Qf7 19. f4 Nd7
20. Qd4 {White threatens to win material: Qd4xa7} Kb8 21. c4 Nc5 (21... Re8 22.
Nc3 $11) 22. Nc3 $14 a6 {Secures b5} (22... a5 23. Rae1 $14) 23. Rfe1 Rh5 (
23... a5 24. Nb5 $14) 24. Re2 g5 (24... Re8 25. Rae1 Rxe2 26. Rxe2 g5 $14) 25.
fxg5 (25. b4 $142 $5 Ne4 26. Nxe4 fxe4 27. Rf1 $16) 25... Qg6 26. Rae1 Rf8 (
26... Rg8 $142 27. Qf6 Rxg5 28. Qxg6 R8xg6 $11) 27. Re7 $4 {White has let it
slip away} (27. b4 $142 Ne4 28. Nxe4 fxe4 29. Qxe4 Qxg5 30. Qd4 $16) 27... Rxg5
$17 28. R1e2 $4 {strolling merrily down the path to disaster} (28. Qd2 f4 29.
R7e2 $19) 28... f4 $19 29. Ne4 (29. Qd2 f3 30. Rf2 $19) 29... Nxe4 (29... f3
$142 {secures the win} 30. Nxg5 fxe2 31. Rxe2 Qxg5 $19) 30. Qxe4 $11 (30. R7xe4
$4 f3 31. Qb2 fxe2 32. Rxe2 Rg3 $19) 30... Qxe4 (30... Qf6 31. Re8+ Rxe8 32.
Qxe8+ Ka7 33. Qe4 $15) 31. R7xe4 $14 f3 32. Rf2 Rfg8 33. Rg4 (33. g4 $5 {
deserves consideration} hxg3 34. Rxf3 $14) 33... Rxg4 $11 34. hxg4 Rxg4 35.
Rxf3 b6 36. Kf2 Kb7 37. Rf7 Rd4 38. Ke2 b5 {Black threatens to win material:
b5xc4} 39. Ke3 {White threatens to win material: Ke3xd4} Rg4 {Black threatens
to win material: Rg4xg2} 40. Kf3 {White threatens to win material: Kf3xg4} (40.
cxb5 axb5 41. Rf2 Rg3+ 42. Kd4 Rg8 $11) 40... Rg3+ $15 41. Kf2 Rc3 42. cxb5
axb5 {Black has a new backward pawn: c7} 43. Kg1 Kb6 44. Kh2 Rc2 45. a4 b4 {
White has a new protected passed pawn: a4} (45... bxa4 46. bxa4 Rc4 47. Rf3 $15
) 46. Rf4 {White threatens to win material: Rf4xb4. White forks: b4+h4} Rc3 {
Praise the rook!} (46... Kc5 $11) 47. Rf3 $4 {not a good decision, because now
the opponent is right back in the game} (47. Rxb4+ Ka5 48. Rxh4 Rxb3 49. g4 $16
) 47... c5 (47... Kc5 48. a5 $15) 48. dxc6 $15 Kxc6 {Black has a new passed
pawn: d6.} (48... Rxf3 49. gxf3 d5 50. f4 $15) 49. Kh3 $11 d5 50. Kxh4 d4 51.
Rf6+ (51. Kg3 $142 $1 $11 {is worthy of consideration}) 51... Kd5 $17 52. Rf3
$4 {cause more grief} (52. Kg4 $142 $17) 52... Rxf3 53. gxf3 (53. g4 {does not
improve anything} d3 54. Kh5 Rh3+ 55. Kg6 Ke6 56. a5 d2 57. a6 d1=Q 58. Kg5 Qd4
59. a7 Qf6#) 53... d3 (53... d3 54. Kg3 d2 55. Kf4 d1=Q 56. Ke3 Qxb3+ 57. Kf4
Qc4+ 58. Kg3 b3 59. Kg2 b2 60. a5 b1=Q 61. Kf2 Qd4+ 62. Kg2 Qh4 63. a6 Qbh1#)
0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "2.1"]
[White "kuramoto, koutarou"]
[Black "Furuse, Mizuki"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "1775"]
[BlackElo "1584"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "79"]
[EventDate "2025.10.12"]

{[%mdl 8192] E60: King's Indian: Unusual lines and Fianchetto Variation
without Nc3} 1. b3 Nf6 2. Nf3 g6 3. Bb2 Bg7 4. g3 O-O 5. Bg2 c5 6. c4 Nc6 7.
O-O d6 8. d4 cxd4 9. Nxd4 Bd7 10. e4 (10. e3 a6 11. Nc3 Qa5 12. h3 Rab8 13. Re1
Rfe8 14. a3 Qh5 15. Qxh5 Nxh5 16. Nd5 Nf6 17. Nb6 Red8 18. b4 Be8 19. Rac1 Kf8
20. Red1 Nd7 21. Nd5 Nf6 22. Nxc6 Bxc6 23. Bxf6 Bxf6 24. Nxf6 exf6 {Romanishin,
O (2605)-Pigusov,E (2575) Tilburg 1994 0-1 (46)}) 10... Nxd4 (10... a5 11. Nc3
a4 12. Nxa4 Nxd4 13. Bxd4 Bxa4 14. bxa4 Nd7 15. Bxg7 Kxg7 16. e5 Nxe5 17. Bxb7
Ra7 18. Rb1 Qc7 19. Bd5 e6 20. Bg2 Nxc4 21. Rb4 d5 22. Qd4+ Kg8 23. Rc1 Rb8 24.
Rcb1 Rba8 25. Rc1 {Gomez Sanchez,J (2248)-Garcia Pantoja,R (2438) Havana 2014
1/2-1/2 (31)}) 11. Qxd4 $146 (11. Bxd4 Bc6 12. Nc3 a6 13. Rc1 Qa5 14. Re1 Nd7
15. Nd5 Qd8 16. Rc2 Rc8 17. h4 h5 18. Bh3 Bxd4 19. Qxd4 Ne5 20. Rc3 e6 21. f4
Nd7 22. Rd1 b6 23. Nb4 Bb7 24. e5 a5 25. Nc2 d5 {Jussupow,A (2490)-Estevez
Morales,G (2345) Cienfuegos 1979 1-0 (36)}) 11... Bc6 12. Qd3 Rb8 13. Nc3 a6 {
Controls b5} 14. Nd5 Nxd5 15. Bxg7 Kxg7 (15... Nf4 $1 16. gxf4 Kxg7 17. Qc3+ f6
$11) 16. exd5 $14 Bd7 17. Rfe1 Re8 18. Re3 b5 19. cxb5 Bxb5 20. Qd4+ Kg8 21.
Rae1 Rb7 22. a4 {White threatens to win material: a4xb5} Bd7 23. Bf1 a5 24. h4
f6 (24... h5 $5 $14 {is worth looking at}) 25. h5 $16 Bf5 26. hxg6 hxg6 27. g4
Rb4 $4 {further deteriorates the position} (27... Bc8 $142 $16) 28. Bc4 $18 Bc8
(28... Bd7 29. Rh3 Qb6 30. Qf4 $18) 29. g5 (29. Qxf6 $142 {might be the
shorter path} exf6 30. Rxe8+ Qxe8 31. Rxe8+ Kf7 32. Rxc8 Rb7 $18) 29... Bd7 (
29... fxg5 {hardly improves anything} 30. Qf6 $3 {Mate threat} exf6 31. Rxe8+
Qxe8 32. Rxe8+ Kf7 33. Rxc8 Rb7 $18) 30. gxf6 (30. Qh4 $142 {and White has it
in the bag} fxg5 31. Qxg5 $18) 30... exf6 $16 31. Rxe8+ Bxe8 32. Re6 Kf7 (32...
f5 $5 $16) 33. Qa7+ Kf8 $4 {a blunder in a bad position} (33... Kg8 $142 $16)
34. Qh7 $18 f5 35. f4 Rxc4 (35... Qb6+ 36. Kg2 Qd8 $18) 36. Qh8+ Kf7 37. bxc4
Qb6+ 38. Kg2 Qd8 39. Kg3 Qd7 40. Rf6+ (40. Rf6+ Ke7 41. Qf8+ Kd8 42. Rxd6 Qxd6
43. Qxd6+ Bd7 44. c5 g5 45. c6 Ke8 46. Qxd7+ Kf8 47. c7 gxf4+ 48. Kxf4 Kg8 49.
c8=Q#) 1-0

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "2.2"]
[White "Nakamura, Mitsuru"]
[Black "Yoshii, Yukihiko"]
[Result "1-0"]
[ECO "C90"]
[WhiteElo "1579"]
[BlackElo "1753"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "155"]
[EventDate "2025.10.12"]

{[%mdl 8192] C90: Closed Ruy Lopez with 7...d6: Early deviations} 1. e4 e5 2.
Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5
10. d4 cxd4 11. cxd4 Nc6 (11... Qc7 12. h3 h6 13. Nbd2 Bb7 14. d5 Nc4 15. Nxc4
bxc4 16. Re3 Rc8 17. Rc3 Qb6 18. Be3 Qxb2 19. Qe1 Qb5 20. Rb1 Qd7 21. Nd2 O-O
22. Nxc4 Qc7 23. Bd2 Nd7 24. Nxe5 Nc5 25. Nd3 Bf6 26. Rc4 {Palac,M (2571)
-Kristovic,M (2336) Zagreb 2006 1-0 (57)}) 12. Be3 $146 (12. d5 Nb8 13. a4 bxa4
14. Nc3 O-O 15. Nxa4 Nbd7 16. Be3 g6 17. Nd2 Ne8 18. Nc4 f5 19. exf5 gxf5 20.
f4 e4 21. Qd2 Nef6 22. Na5 Qe8 23. Nc6 Ng4 24. Bd4 Bf6 25. h3 Nh6 26. Ra3 Qf7 {
Klovans,J (2464)-Ljubarskij,J (2317) Bad Sooden 2004 1/2-1/2 (42)}) (12. h3 O-O
13. Nc3 Bb7 14. d5 Nb8 15. Be3 Nbd7 16. Bd3 Rc8 17. a4 b4 18. Na2 a5 19. Nc1
Nc5 20. Bxc5 Rxc5 21. Nb3 Rc8 22. Nfd2 Nd7 23. Nc4 Ra8 24. Rc1 Ra7 25. Qe2 Ra8
26. Rc2 f5 {Mickiewicz,P (2344)-Marholev,D (2401) Marianske Lazne 2011 1-0 (47)
}) 12... O-O 13. h3 {Prevents intrusion on g4} h6 {Covers g5} 14. a3 {
Consolidates b4} Re8 15. Nbd2 Bd7 {White has an active position} 16. Rc1 Rc8
17. b4 exd4 18. Bxd4 (18. Nxd4 a5 $14) 18... Nxd4 19. Nxd4 {Black has the pair
of bishops} Bf8 20. N2f3 Qb6 21. Bb1 Red8 (21... Rc4 22. Re2 $11) 22. Qd2 g6 {
White has an active position} (22... Rxc1 23. Qxc1 Re8 24. Qf4 $11) 23. Qf4 {
White threatens to win material: Qf4xf6} Bg7 24. Ba2 {White has a very active
position} Be8 25. Re2 $4 {with this move White loses his initiative} (25. Red1
$5 $14) 25... Nd7 $4 {throws away a nice position} (25... Nh5 $142 {it becomes
clear that Black will call all the shots} 26. Qd2 Rxc1+ 27. Qxc1 Bxd4 28. Qxh6
Bg7 $19) 26. Rec2 Rxc2 27. Nxc2 {White has an active position} Rc8 28. Nce1 Rc7
(28... Rxc1 29. Qxc1 Nf6 30. e5 dxe5 31. Nxe5 $15) 29. Rxc7 (29. Nd3 g5 30. Qd2
Nf6 31. Rxc7 Qxc7 $11) 29... Qxc7 30. Bd5 {A classical outpost} (30. Qg3 Nf6
$15) 30... Ne5 (30... Nb6 31. Bb3 $15) 31. Qd2 g5 32. Nxe5 Bxe5 33. h4 (33. Nc2
Bd7 $11) 33... Qc3 34. Qxc3 Bxc3 35. Nf3 g4 {Black threatens to win material:
g4xf3} 36. Nh2 h5 (36... Bd7 37. Nf1 $15) 37. f3 {White threatens to win
material: f3xg4} (37. Nf1 Kh7 $11) 37... Bd4+ $15 38. Kh1 Bd7 39. fxg4 hxg4 40.
g3 $2 (40. Nf1 $142 $15 {and White can hope to live}) 40... Bb2 $19 41. Nf1
Bxa3 42. Bb7 Bxb4 43. Bxa6 Bc5 44. Bb7 (44. Nd2 Be3 45. Nf1 Bd4 $19) 44... Kg7
45. Kg2 Kg6 46. Nd2 Be6 47. Ba6 (47. Bc6 b4 48. Ba4 Be3 $19) 47... b4 48. Bd3
Kf6 (48... b3 {seems even better} 49. e5+ f5 50. exf6+ Kxf6 51. Kf1 $19) 49.
Kf1 (49. Bc2 Be3 50. Nb3 d5 51. exd5 Bxd5+ 52. Kf1 Ke5 $19) 49... Ke5 (49... b3
$5 {makes it even easier for Black} 50. Nc4 $19) 50. Ke2 f5 (50... b3 $5 51.
Nc4+ Kf6 52. Ne3 $19) 51. exf5 Bxf5 52. Nc4+ Kf6 53. Bxf5 Kxf5 54. Kd3 $2 (54.
Nd2 Kg6 $19) 54... Kf6 (54... b3 {keeps an even firmer grip} 55. Nd2 b2 56. Kc2
$19) 55. Ke4 $2 (55. Nd2 d5 $19) 55... Ke6 (55... Kg6 {and Black can already
relax} 56. Nd2 Bf2 57. Nf1 $19) 56. Kf4 $4 {the position is going down the
drain} (56. Na5 $142 Bf2 57. Kf4 $17) 56... Kd5 $19 57. Nd2 Kd4 58. h5 (58.
Nb3+ {doesn't get the bull off the ice} Kd3 59. Nxc5+ (59. Kxg4 $4 {White will
choke on that pawn} Bb6 60. Na1 Kc3 $19) 59... dxc5 60. h5 $19) 58... Kc3 {
Black threatens to win material: Kc3xd2} (58... Kd3 $142 {ends the debate} 59.
Nb3 Bb6 $19) 59. Ne4+ $11 Kd3 $4 {what a pity, victory was in sight} (59... Kc2
$142 {the only rescuing move} 60. h6 Bd4 61. Nxd6 Kd3 $11) 60. Nxc5+ $18 dxc5
61. h6 b3 62. h7 b2 63. h8=Q Kc2 64. Qh7+ Kc1 65. Qh1+ Kc2 66. Qg2+ Kb3 67.
Qd5+ c4 (67... Kb4 68. Qe6 b1=B 69. Qb6+ Kc4 70. Qxb1 Kd5 71. Kf5 Kc6 72. Qa1
Kb7 73. Qa4 c4 74. Qxc4 Kb6 75. Ke6 Kb7 76. Kd6 Kb6 77. Qb3+ Ka5 78. Kc5 Ka6
79. Qb6#) 68. Qd1+ (68. Qb5+ Ka3 69. Ke4 b1=B+ 70. Qxb1 c3 71. Kd3 c2 72. Kxc2
Ka4 73. Qb6 Ka3 74. Qb3#) 68... Ka2 (68... Kc3 {a fruitless try to alter the
course of the game} 69. Ke5 Kb4 70. Qc2 c3 71. Kd5 Ka5 72. Kc5 Ka6 73. Kc6 Ka7
74. Kc7 b1=Q 75. Qa4#) 69. Qa4+ Kb1 70. Qxc4 (70. Ke3 Kc1 71. Qxc4+ Kb1 72. Kd3
Ka1 73. Qa4+ Kb1 74. Qa5 Kc1 75. Qe1#) 70... Ka1 71. Qf1+ (71. Qa4+ Kb1 72. Ke3
Kc1 73. Qc4+ Kb1 74. Kd3 Ka1 75. Qa4+ Kb1 76. Qa5 Kc1 77. Qe1#) 71... b1=Q (
71... Ka2 {doesn't do any good} 72. Kxg4 Kb3 73. Qb5+ Kc3 74. Qc5+ Kd3 75. Qa3+
Kc4 76. Qxb2 Kd5 77. Kf5 Kc4 78. g4 Kd3 79. Qd4+ Kc2 80. Qc4+ Kb2 81. g5 Ka3
82. g6 Kb2 83. g7 Ka3 84. g8=Q Kb2 85. Qg5 Ka3 86. Qgc1#) 72. Qxb1+ Kxb1 73.
Kxg4 Kc2 (73... Ka2 {doesn't change the outcome of the game} 74. Kf4 Ka1 75. g4
Kb1 76. Ke4 Kb2 77. g5 Ka3 78. g6 Kb3 79. Kd4 Kb4 80. g7 Ka5 81. g8=Q Kb6 82.
Qd5 Kc7 83. Kc5 Kb8 84. Qd7 Ka8 85. Kc6 Kb8 86. Qb7#) 74. Kf4 (74. Kf5 Kd2 75.
g4 Kc1 76. g5 Kb2 77. Ke4 Kc3 78. g6 Kc2 79. g7 Kd2 80. g8=Q Kc3 81. Qc8+ Kb3
82. Kd4 Kb2 83. Qc4 Ka1 84. Qe2 Kb1 85. Kc3 Kc1 86. Qc2#) 74... Kd3 (74... Kb2
{cannot change destiny} 75. g4 Kb3 76. g5 Kb4 77. g6 Ka3 78. g7 Kb4 79. g8=Q
Kb5 80. Ke5 Kb6 81. Qb3+ Kc5 82. Qc3+ Kb5 83. Qd3+ Kc5 84. Qc2+ Kb5 85. Qc3 Kb6
86. Kd6 Kb5 87. Qb3+ Ka5 88. Kc5 Ka6 89. Qb6#) 75. g4 Kd4 (75... Kc3 {doesn't
get the bull off the ice} 76. Ke5 Kc2 77. g5 Kb1 78. g6 Kc1 79. g7 Kd1 80. g8=Q
Kc2 81. Qc4+ Kb2 82. Kd4 Kb1 83. Qe2 Kc1 84. Kc3 Kb1 85. Qb2#) 76. Kf5 (76. g5
Kd3 77. g6 Kd2 78. Ke5 Kc1 79. g7 Kd2 80. g8=Q Ke2 81. Qc4+ Ke3 82. Qc3+ Ke2
83. Kf4 Kf2 84. Qc2+ Ke1 85. Ke3 Kf1 86. Qf2#) 76... Kd5 (76... Kc4 {does not
solve anything} 77. Ke5 Kb4 78. g5 Kc3 79. g6 Kc2 80. g7 Kd2 81. g8=Q Ke2 82.
Qc4+ Ke3 83. Qc3+ Kf2 84. Kf4 Kg1 85. Qd2 Kf1 86. Kf3 Kg1 87. Qg2#) 77. g5 Kd6
(77... Kc6 {doesn't do any good} 78. g6 Kc7 79. Ke6 Kb7 80. Ke5 Ka6 81. g7 Kb5
82. g8=Q Kb6 83. Qb3+ Kc5 84. Qa3+ Kb5 85. Qd3+ Kc6 86. Qd5+ Kb6 87. Kd6 Ka7
88. Qb5 Ka8 89. Kc6 Ka7 90. Qb7#) 78. Kf6 (78. Kf6 Kc6 79. g6 Kc5 80. Ke5 Kb4
81. g7 Ka4 82. g8=Q Kb5 83. Qd5+ Kb4 84. Kd4 Ka3 85. Qb5 Ka2 86. Kc3 Ka3 87.
Qb3#) 1-0

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "2.3"]
[White "Nishimori, Toshiyuki"]
[Black "Kawashima, Tsukasa"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1699"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "53"]
[EventDate "2025.10.12"]

{[%mdl 8256] C50: Hungarian Defence and Giuoco Pianissimo} 1. e4 e5 2. Nf3 Nc6
3. Bc4 d6 4. c3 Bg4 5. d3 Qd7 6. Be3 $146 (6. a4 g6 7. Nbd2 Bg7 8. a5 Nd8 9.
Qb3 Be6 10. d4 Bxc4 11. Nxc4 exd4 12. cxd4 Ne7 13. O-O O-O 14. Be3 h6 15. Rfe1
Kh7 16. Rad1 f5 17. exf5 {1/2-1/2 (17) Kyas,J (2210)-Heinz,J (2310) Germany
1993}) (6. h3 Bxf3 7. Qxf3 Na5 (7... Nf6 8. a4 Be7 9. Nd2 Rd8 10. Nf1 d5 11.
exd5 Nxd5 12. Ne3 Nf4 13. O-O O-O 14. b4 Kh8 15. Rd1 f5 16. Nc2 {1/2-1/2 (16)
Esquivel,L (2167)-Porras Mateo,F (2193) Barcelona 2007}) 8. Bd5 Nf6 9. b4 Nc6
10. Bb3 a5 11. b5 Nd8 12. a4 Be7 13. Be3 O-O 14. Nd2 Qe8 15. O-O Nd7 16. Qe2
Bf6 17. d4 Ne6 18. Qd3 Qe7 19. Bd5 Rab8 20. Nb3 b6 {Sammalvuo,T (2510)-Gdanski,
J (2498) Sweden 2003 1-0 (52)}) (6. b4 g6 7. Nbd2 Bg7 8. Qb3 Nh6 9. O-O O-O 10.
a4 a6 11. a5 Qe7 12. b5 axb5 13. Qxb5 Bd7 14. a6 bxa6 15. Qb3 a5 16. Bd5 Ng4
17. Qc4 Qe8 18. Nb1 a4 19. Na3 Ra7 20. h3 Na5 {Stepanov,P (2375)-Litus,V (2395)
Moscow 1992 0-1 (53)}) 6... Nf6 7. Nbd2 d5 8. exd5 Nxd5 {Black has a very
active position} 9. Bg5 (9. O-O $5 $11) 9... f6 $15 10. Bh4 (10. Be3 $5 $15 {
must be considered}) 10... Nf4 $17 11. O-O g5 {Black threatens to win material:
g5xh4} (11... Nxd3 12. b4 Bf5 13. Qb3 $17) 12. Ne4 (12. Bg3 $5 $15) 12... Be7
$17 13. Bg3 O-O-O (13... Na5 $5 $17) 14. Bxf4 $15 gxf4 15. h3 $2 (15. b4 $142
$5 $15 {and White could well hope to play on}) 15... Bxh3 $19 16. Re1 (16. b4
Rhg8 $1 {Decoy: g8} 17. Bxg8 Rxg8 $19) 16... Bg4 (16... Qg4 {makes it even
easier for Black} 17. g3 f5 18. Nfg5 $19) 17. Kf1 (17. d4 exd4 18. cxd4 Nxd4
19. Qxd4 Qxd4 20. Nxd4 Rxd4 $19) 17... f5 (17... h5 18. d4 h4 19. Nxf6 Bxf6 20.
dxe5 $19) 18. Ned2 h5 (18... Bf6 $142 $19) 19. Ke2 $4 {causes even greater
problems} (19. Qa4 e4 $1 {Black forges ahead} 20. b4 $19) 19... Bc5 (19... h4
$142 $5 {keeps an even firmer grip} 20. Qb3 Kb8 21. Ba6 $19) 20. Qb3 Rhe8 (
20... Kb8 $5 {seems even better} 21. Qb5 Bb6 22. Kf1 $19) 21. Kf1 e4 (21... h4
$142 {and Black can already relax} 22. Ng5 Qg7 $19) 22. dxe4 $17 fxe4 (22...
Na5 $5 23. Qb5 Nxc4 24. Qxc4 fxe4 25. Rxe4 Bf5 $19) 23. Nxe4 Bxf3 $4 {
releasing the pressure on the opponent} (23... Na5 $142 24. Qb5 Nxc4 25. Qxd7+
Bxd7 (25... Kxd7 $143 26. Nf6+ (26. Nxc5+ $143 Kc6 27. Rxe8 Rxe8 $11) 26... Kc6
27. Rxe8 (27. Nxe8 $143 Nd2+ (27... Nxb2 $2 {doesn't lead to the expected
results} 28. Ne5+ Kb5 29. Nxc7+ Kb6 30. Nxg4 Kxc7 31. Re5 $18) 28. Kg1 Bxf3 $17
) 27... Rxe8 28. Nxe8 $16) 26. Nxc5 Nxb2 27. Nxd7 Rxe1+ 28. Rxe1 Rxd7 29. Re8+
Rd8 $17) 24. Nxc5 $18 Bxg2+ 25. Kxg2 $4 {ruins a clearly superior position} (
25. Kg1 $142 {makes sure everything is clear} Na5 26. Nxd7 Nxb3 27. Bxb3 $18)
25... f3+ $1 $19 {Decoy: f3} 26. Kh2 (26. Kxf3 Qg4# {Mate attack Decoy}) 26...
Qg7 $4 {ignoring the path to victory} (26... Qd6+ $142 {and Black wins} 27. Kh1
Qxc5 28. Rxe8 Rxe8 29. Be6+ Kb8 $19) 27. Qxb7# 1-0

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "2.4"]
[White "Araki, Dai"]
[Black "Sugimoto, Koichi"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "1753"]
[BlackElo "1866"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "200"]
[EventDate "2025.10.12"]

{[%mdl 8256] A07: R騁i Opening: New York and Capablanca Systems} 1. Nf3 d5 2.
g3 Bg4 3. Bg2 Nf6 4. O-O c6 5. d3 e6 6. h3 Bh5 7. Nh4 (7. c4 Nbd7 8. cxd5 cxd5
9. Qb3 Qb6 10. Qxb6 Nxb6 11. g4 Bg6 12. Bf4 Be7 13. Rc1 Rc8 14. Nc3 a6 15. Rc2
O-O 16. Rac1 Nfd7 17. Nd4 Bf6 18. Nb3 Be5 19. Bxe5 Nxe5 20. f4 Nc6 21. f5 exf5
{Urban,K (2443)-Lisowski,K (2152) Poronin 2014 1-0 (41)}) 7... Bd6 $146 (7...
Be7 8. f4 Nfd7 9. Nf3 Bxf3 10. Bxf3 Na6 11. Bg2 O-O 12. e4 Nc7 13. Kh2 a5 14.
Qe2 a4 15. a3 Nb5 16. Nd2 Re8 17. Nf3 Bf8 18. e5 Qb6 19. c3 Nc5 20. Be3 Qd8 21.
Rad1 Nb3 22. d4 {Dubov,D (2629)-Malakhov,V (2716) Warsaw 2013 1/2-1/2 (204)})
8. Qe1 O-O 9. e4 dxe4 10. dxe4 Nfd7 11. f4 Be7 12. Nf3 Qb6+ 13. Kh1 Bxf3 14.
Rxf3 {White has the pair of bishops} Nf6 (14... Rd8 15. b3 $11) 15. Rb3 (15. e5
Nfd7 $14) 15... Qc7 $11 16. c4 (16. Nc3 Na6 $11) 16... Na6 17. e5 {White
threatens to win material: e5xf6} Nd7 18. Be3 Nac5 {Black threatens to win
material: Nc5xb3} (18... Ndc5 19. Ra3 $11) 19. Rc3 Na4 {Black threatens to win
material: Na4xc3. Black forks: c3+b2} (19... f6 20. exf6 Bxf6 21. Rc2 $11) 20.
Rc2 Ndc5 21. Bxc5 (21. b3 $5 {is noteworthy} Nd3 22. Qd2 $14) 21... Nxc5 $11 {
Opposite coloured bishops appeared} 22. Nc3 Rad8 23. Rd1 a5 24. Rcd2 Rxd2 25.
Rxd2 Rd8 26. Qd1 Rxd2 {Black forks: b2+d1} 27. Qxd2 Qd8 28. Qxd8+ Bxd8 29. Ne4
Nxe4 30. Bxe4 h6 31. Kg2 Kf8 32. Kf3 Ke8 33. f5 Ke7 34. Kf4 Bc7 35. fxe6 Kxe6
36. Bf5+ Ke7 37. Ke4 b6 38. g4 g6 39. Bc8 Kd8 {Black threatens to win material:
Kd8xc8} 40. Bb7 {White threatens to win material: Bb7xc6} Kd7 41. b3 Bd8 42. c5
Kc7 {Black threatens to win material: Kc7xb7} 43. Ba6 b5 44. a4 bxa4 45. bxa4
Kd7 46. Kd4 Bc7 47. Bd3 Ke6 48. Bc4+ Ke7 49. h4 Bb8 50. h5 gxh5 51. gxh5 Bc7
52. Ke4 Bb8 53. Ba6 Ke6 54. Bc8+ Ke7 55. Bb7 {White threatens to win material:
Bb7xc6} Kd7 56. Ba6 Ke6 57. Bc4+ Ke7 58. Kd4 Bc7 {Twofold repetition} 59. Be2
Ke6 60. Bg4+ Ke7 61. Bf3 Kd7 62. Ke4 Ke6 63. Bg4+ Ke7 64. Kf5 Bb8 65. Bf3 Kd7
66. Kf6 Bc7 67. Be4 Bb8 68. Bf5+ Ke8 69. Be4 {White threatens to win material:
Be4xc6} Kd7 70. Bg6 {Decoy: g6} fxg6 $4 (70... Ba7 $142 $11 {was a good chance
to save the game}) 71. hxg6 (71. e6+ Kc8 72. hxg6 Bf4 73. e7 Kd7 74. Kf7 Kc7
75. e8=Q Kb7 76. g7 Bc7 77. g8=Q Bf4 78. Qa8+ Kc7 79. Qac8#) 71... Bxe5+ $18
72. Kxe5 Ke7 73. g7 Kf7 74. g8=Q+ $1 {leaving no more doubts.} Kxg8 75. Kd6 h5
76. Kxc6 h4 77. Kb5 (77. Kb6 {keeps an even firmer grip} h3 78. c6 h2 $18)
77... h3 (77... Kf7 78. c6 Ke7 $18) 78. c6 h2 79. c7 h1=Q 80. c8=Q+ Kf7 81.
Qd7+ Kf8 (81... Kg8 82. Kxa5 Qa8+ 83. Kb5 Qb8+ 84. Kc5 Qf8+ 85. Kb6 Qb8+ 86.
Qb7 Qd8+ 87. Ka6 Qd3+ 88. Qb5 Qd6+ 89. Ka7 Qd4+ 90. Kb7 Qe4+ 91. Qc6 Qe7+ 92.
Kb6 Qe3+ 93. Kc7 Qe7+ 94. Kb8 Qb4+ 95. Ka7 Qe7+ 96. Qb7 Qc5+ 97. Kb8 Qe5+ 98.
Qc7 Qb2+ 99. Kc8 $18) 82. Kxa5 Qa8+ 83. Kb5 Qb8+ 84. Kc5 Qe5+ 85. Qd5 (85. Kb6
{makes it even easier for White} Qe3+ 86. Kb7 Qb3+ 87. Qb5 Qf3+ 88. Qc6 Qb3+
89. Kc8 Qh3+ 90. Kc7 Qh7+ 91. Kb8 Qh2+ 92. Qc7 Qb2+ 93. Kc8 Qg2 $18) 85... Qc3+
(85... Qc7+ 86. Kb5 Ke7 87. Ka6 $18) 86. Kb5 Qb2+ (86... Ke7 {doesn't get the
cat off the tree} 87. a5 $18) 87. Ka6 Qe2+ 88. Kb6 Qb2+ 89. Kc6 Qa1 (89... Qf6+
{cannot undo what has already been done} 90. Kc7 Qg7+ 91. Qd7 Qc3+ 92. Qc6 Qg7+
93. Kb8 Qb2+ 94. Qb5 Qh2+ 95. Kb7 Qg2+ 96. Kb6 Qg6+ 97. Qc6 Qb1+ 98. Ka7 Qg1+
99. Ka8 $18) 90. a5 Qa4+ 91. Kb6 Qb4+ 92. Ka7 Qe7+ 93. Qb7 Qc5+ 94. Qb6 Qe7+
95. Ka8 Qe4+ 96. Qb7 Qc4 97. a6 (97. Kb8 $142 {secures the point} Qf4+ 98. Qc7
Qb4+ 99. Ka8 Qe4+ 100. Ka7 Qd4+ 101. Qb6 Qd7+ 102. Ka8 $18) 97... Ke8 $11 98.
Qb8+ Kd7 99. a7 Qc8 100. Qxc8+ Kxc8 1/2-1/2

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "2.5"]
[White "Yajima, Machiko"]
[Black "Shishido, Kenta"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1327"]
[BlackElo "1483"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "126"]
[EventDate "2025.10.12"]

{[%mdl 8192] A05: R騁i Opening: 1 Nf3 Nf6} 1. g3 Nf6 2. Nf3 b6 3. Bg2 Bb7 4.
O-O e6 5. d3 d6 6. Nc3 $146 (6. e4 Nbd7 (6... g6 7. Nbd2 Bg7 8. Nh4 Nc6 9. f4
O-O 10. c3 Rb8 11. d4 Ne7 12. e5 Ne8 13. Ne4 Nf5 14. Nxf5 exf5 15. Ng5 Bxg2 16.
Kxg2 dxe5 17. dxe5 Bh6 18. h4 Qxd1 19. Rxd1 Bxg5 20. hxg5 Ng7 21. Be3 {
Vesselovsky,S (2420)-Enders,P (2490) Wattens 1999 1/2-1/2 (38)}) 7. Re1 (7. b3
Be7 8. Bb2 O-O 9. Nbd2 c5 10. Re1 Rc8 11. a4 a6 12. d4 cxd4 13. Nxd4 Qc7 14. c4
Rfe8 15. Rc1 Qb8 16. h3 Bf8 17. Kh2 h6 18. f4 e5 19. Nf5 g6 20. Ne3 exf4 21.
gxf4 Nh5 {Lomsadze,D (2360)-Gharagyozyan,A (2254) Poti 2012 0-1 (53)}) (7. Nbd2
Be7 8. Re1 O-O 9. d4 e5 10. c3 Re8 11. a4 Bf8 12. a5 bxa5 13. dxe5 dxe5 14.
Rxa5 Bc5 15. Qc2 Bb6 16. Ra1 Nc5 17. Bf1 a5 18. b3 Qd7 19. Ba3 Rad8 20. Bxc5
Bxc5 21. Rxa5 Bb6 {Tattersall Rodriguez,L (2338)-Serra Olives,T (2240)
Binissalem 2002 0-1 (33)}) (7. Nc3 g6 8. Nh4 Qb8 9. f4 Bg7 10. Bd2 c5 11. Qe2
O-O 12. g4 h6 13. Bh3 Bc6 14. Rae1 Qe8 15. Nf3 Qe7 16. Qf2 Rae8 17. Qg3 d5 18.
e5 Nh7 19. Re2 Kh8 20. Bg2 b5 21. Qh3 Rg8 {Visser,Y (2441)-Geirnaert,S (2160)
Dieren 2002 1-0 (63)}) 7... Be7 8. a4 a6 9. c4 c5 10. Bd2 O-O 11. b4 Qc7 12.
Na3 Rab8 13. b5 a5 14. Bc3 Rbd8 15. Nd2 Ne8 16. f4 Bf6 17. e5 dxe5 18. Bxb7
Qxb7 19. fxe5 Be7 20. Nc2 f6 {Tattersall Rodriguez,L (2303)-Serra Olives,T 
(2213) Palma de Mallorca 2003 1-0 (53)}) 6... Be7 7. b3 Nbd7 8. Bb2 a6 {
Controls b5} 9. e4 O-O 10. Ng5 Ne8 11. Nf3 c5 12. Ne2 Bf6 13. Rb1 Rc8 14. Nf4 (
14. c3 g6 $11) 14... Bxb2 15. Rxb2 Qf6 {Black threatens to win material: Qf6xb2
} 16. Qc1 Nc7 17. Nh5 {White threatens to win material: Nh5xf6} Qc3 18. b4 $2 (
18. Nf4 $142 $5 $11 {and White is still in the game}) 18... cxb4 $17 19. Rb3 (
19. Nf4 a5 $17) 19... Qc6 (19... Qc5 20. g4 $19) 20. Nxg7 $2 (20. Qg5 Ne8 21.
Rxb4 Qxc2 22. Qe7 $19) 20... Kxg7 $19 21. Qg5+ Kh8 22. Qc1 $2 (22. Rxb4 Qc5 23.
Qd2 $19) 22... a5 23. Ng5 (23. a3 {doesn't change the outcome of the game} Na6
24. Nd4 Qc5 $19) 23... f6 24. Nh3 (24. Nf3 {does not win a prize} Nb5 25. Nh4
Qxc2 26. Ng6+ Kg7 27. Qxc2 Rxc2 28. Nxf8 Kxf8 $19) 24... Nc5 (24... e5 $5 {
seems even better} 25. Qd2 $19) 25. Rb1 Nb5 26. Qh6 (26. Qd2 {cannot undo what
has already been done} e5 $19) 26... e5 27. Bf3 (27. f4 {doesn't get the bull
off the ice} Nd7 28. Bf3 Rg8 29. fxe5 Qc5+ 30. Kh1 Qxe5 $19) 27... Qd7 28. Qe3
(28. Rbe1 $19 {hoping against hope}) 28... Qxh3 29. Bg2 Qe6 30. c4 Nc3 31. Rb2
Qg4 (31... Rg8 {and Black can already relax} 32. f3 $19) 32. f4 Nd1 33. Rxd1 (
33. Qe2 {cannot change what is in store for White} Qxe2 34. Rxe2 Nc3 $19) 33...
Qxd1+ 34. Bf1 Rg8 (34... f5 {makes it even easier for Black} 35. exf5 Rxf5 36.
Rf2 $19) 35. Rd2 Qg4 (35... Qc1 {keeps an even firmer grip} 36. Qf2 $19) 36. f5
(36. Rf2 {doesn't improve anything} a4 $19) 36... Qh5 (36... a4 {seems even
better} 37. Be2 Qg5 38. Qxg5 Rxg5 39. a3 $19) 37. Qf2 (37. Bg2 {does not win a
prize} Bc6 $19) 37... Na4 38. Rc2 Rc6 (38... Qh6 $142 {and Black can already
relax} 39. Re2 $19) 39. d4 Nc3 40. d5 Nxe4 (40... Rc5 {might be the shorter
path} 41. Bd3 Qd1+ 42. Qf1 Qxf1+ 43. Bxf1 Nxe4 44. Be2 $19) 41. Qe1 Rc5 (41...
Ng5 $142 {seems even better} 42. Bg2 Rc5 43. Qf1 $19) 42. Rg2 (42. Qxe4 {
there is nothing better in the position} b5 $1 {Deflection: d5} 43. Be2 $19)
42... Nc3 43. Bd3 Ba6 44. Qf2 Qd1+ (44... Bxc4 45. Bxc4 Rxc4 46. Qc2 Re4 47.
Qd3 Re1+ 48. Kf2 Rd1 49. a3 Rxd3 50. g4 Qh4+ 51. Rg3 Qxh2+ 52. Rg2 Qf4+ 53. Kg1
Rd1#) 45. Bf1 Bxc4 46. Qf3 (46. a3 {is no salvation} bxa3 47. Kh1 Bxf1 48. Rg1
Qxd5+ 49. Rg2 Bxg2+ 50. Qxg2 Ne4 51. Qf3 Nxg3+ 52. Kg2 Rc2+ 53. Kh3 Qxf3 54.
hxg3 Qxg3#) 46... Bxf1 (46... Qxf3 47. Rf2 Qd1 48. Kg2 Nxd5 49. Kh1 Bxf1 50. h4
Rxg3 51. Kh2 Qg4 52. Kh1 Qe4+ 53. Rf3 Qxh4#) 47. Qxf1 $19 Qxf1+ 48. Kxf1 Nxd5
49. Ke1 Rgc8 (49... Rc1+ 50. Kd2 Rgc8 51. Re2 R8c2+ 52. Kd3 Rc3+ 53. Kd2 R1c2+
54. Kd1 Rxe2 55. Kxe2 a4 56. Kd2 b3 57. axb3 axb3 58. Ke1 b2 59. Kf2 b1=Q 60.
Kg2 Ne3+ 61. Kh3 Qa2 62. Kh4 Qxh2#) 50. Re2 (50. Rd2 {does not improve anything
} Rc1+ 51. Ke2 R1c2 52. h3 Nc3+ 53. Ke1 Rxd2 54. Kxd2 Nxa2 55. g4 b3 56. h4 b2
57. g5 b1=Q 58. gxf6 Qb2+ 59. Ke3 Qg2 60. f7 Rc3#) 50... Rc2 51. Rd2 (51. h4 {
is not much help} Rxe2+ 52. Kxe2 Nc3+ 53. Kd3 Nxa2 54. Ke4 Nc3+ 55. Kf3 b3 56.
Ke3 b2 57. Kf3 b1=Q 58. Kg2 Nd5 59. Kf3 Qf1+ 60. Ke4 Rc5 61. g4 Qe2#) 51...
Rxd2 52. Kxd2 Rc3 53. g4 Ne3 (53... e4 54. g5 Nf4 55. g6 e3+ 56. Kd1 e2+ 57.
Kd2 Rd3+ 58. Ke1 Rd1+ 59. Kf2 Rf1+ 60. Ke3 e1=Q+ 61. Kd4 Qc3+ 62. Ke4 d5#) 54.
h3 Nf1+ 55. Ke1 Nh2 56. Kf2 Rxh3 57. Kg2 (57. g5 {is not the saving move} Ra3
58. gxf6 Rxa2+ 59. Ke3 Ng4+ 60. Ke4 Nxf6+ 61. Kd3 d5 62. Ke3 Kg7 63. Kf3 b3 64.
Kg3 b2 65. Kh3 b1=Q 66. Kh4 Qxf5 67. Kg3 Qg4#) 57... Ra3 58. Kxh2 (58. g5 {
does not help much} Rxa2+ 59. Kg3 fxg5 60. f6 Kg8 61. Kh3 b3 62. Kg3 b2 63. f7+
Kxf7 64. Kxh2 b1=Q+ 65. Kg3 Qe4 66. Kh3 Qf3#) 58... Rxa2+ 59. Kh3 (59. Kg3 {
cannot change what is in store for White} b3 60. Kf3 d5 61. g5 b2 62. g6 b1=Q
63. g7+ Kxg7 64. Kg3 Qd3+ 65. Kg4 Ra4+ 66. Kh5 Qxf5#) 59... b3 60. g5 (60. Kh4
{does not save the day} b2 61. g5 b1=Q 62. Kg3 Qd3+ 63. Kh4 Rh2+ 64. Kg4 Qh3#)
60... fxg5 (60... b2 61. g6 b1=Q 62. g7+ Kxg7 63. Kg4 Qd3 64. Kh4 Rh2+ 65. Kg4
h5#) 61. f6 Kg8 62. Kg4 (62. f7+ {hardly improves anything} Kxf7 63. Kg3 b2 64.
Kf2 b1=Q+ 65. Kf3 Qd3+ 66. Kg4 Kf6 67. Kh5 Qh3#) 62... Kf7 63. Kxg5 (63. Kf3 {
does not solve anything} b2 64. Kg4 b1=Q 65. Kf3 Qd3+ 66. Kg4 Kxf6 67. Kh5 Qh3#
) 63... b2 (63... b2 64. Kg4 b1=Q 65. Kg3 Qe4 66. Kh3 h5 67. Kg3 Qg4#) (63...
Ra4 64. Kf5 b2 65. Kg5 b1=Q 66. Kh6 Qg6#) 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "2.6"]
[White "Ito, Katsuhide"]
[Black "Kaga, Kazuyuki"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1307"]
[BlackElo "1481"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "80"]
[EventDate "2025.10.12"]

{[%mdl 8192] B08: Pirc Defence: Classical System} 1. e4 g6 2. d4 Bg7 3. Nf3 d6
4. Be2 Nf6 5. Nc3 O-O 6. O-O a6 7. a4 Nc6 8. Bd2 $146 {White has an active
position} (8. Bf4 e6 9. Re1 b6 10. Qd2 Bb7 11. Bg5 Qd7 12. Rad1 Rae8 13. h3 Qc8
14. e5 dxe5 15. dxe5 Nd5 16. Bc4 Nxc3 17. Qxc3 Ne7 18. Bf6 Nd5 19. Bxd5 Bxd5
20. Rd4 Qb7 21. Rh4 Bxf3 22. gxf3 h5 {Schlawin,M (2298)-Kengis,E (2528)
Hamburg 2005 1/2-1/2 (53)}) (8. a5 e5 9. d5 Ne7 10. Ne1 c6 11. Nf3 cxd5 12.
exd5 Nf5 13. Nd2 Nd4 14. Nc4 Bf5 15. Bd3 Qc7 16. Bxf5 Qxc4 17. Bh3 Nh5 18. g3
f5 19. Bg2 Rac8 20. Ra4 Qc7 21. Be3 f4 22. Bxd4 exd4 {Zubov,A (2614)-Van
Kampen,R (2596) Tel Aviv 2013 1-0 (66)}) (8. d5 Nb4 9. a5 e6 10. Bg5 h6 11. Be3
Ng4 12. Bd2 exd5 13. exd5 Bf5 14. Ra4 c5 15. dxc6 Nxc6 16. Nd5 Rc8 17. h3 Nge5
18. Be3 Kh7 19. c3 Re8 20. Qd2 Nxf3+ 21. Bxf3 Ne5 22. Be2 Nd7 {Romanov,E (2577)
-Ben Artzi,I (2397) Golden Sands 2015 1-0}) (8. Be3 Ng4 9. Bg5 h6 10. Bh4 Nf6
11. h3 Nh5 12. d5 Nb8 13. Ne1 Nf4 14. Nd3 Nxe2+ 15. Qxe2 c6 16. a5 Nd7 17. Bg3
cxd5 18. Nxd5 b5 19. c3 Bb7 20. Rfd1 e6 21. N5b4 Qc7 22. f3 Rfe8 {Osterman,R 
(2310)-Sahovic,D (2420) Bor 1976 1/2-1/2}) (8. Be3 Bd7 $14) 8... Nb4 (8... d5
9. exd5 Nxd5 10. Nxd5 Qxd5 11. c3 $11) 9. Re1 a5 10. Bf1 {Black has a cramped
position} (10. h3 c6 $14) 10... Bg4 $11 11. h3 Bxf3 12. gxf3 (12. Qxf3 $2 Nxc2
13. Bd3 Nxa1 14. Rxa1 c6 $19) 12... e5 13. Ne2 exd4 14. Nxd4 c5 {Black
threatens to win material: c5xd4} (14... Nh5 $5 {should be investigated more
closely} 15. c3 Bxd4 16. cxd4 Qf6 $11) 15. Nb5 $14 Re8 (15... Qe7 16. Bg5 Rad8
17. c3 $16) 16. Bg5 $16 h6 17. Nxd6 $4 {White lets it slip away} (17. Bh4 $142
$16) 17... hxg5 $19 18. Nxe8 Qxe8 (18... Nxe8 $6 19. Qxd8 Rxd8 20. c3 $15) 19.
e5 Nh5 20. Bc4 (20. Bb5 Nc6 21. e6 fxe6 $19 (21... Bxb2 $6 22. Rb1 Bc3 23.
exf7+ Qxf7 24. Qd3 $17)) 20... Nf4 21. Ra3 $2 (21. c3 Rd8 22. Qb3 $19) 21...
Rd8 22. Qc1 Rd4 23. Bb5 (23. Bf1 {desperation} Qe6 24. Re4 $19) 23... Qe6 24.
Bf1 Nxh3+ 25. Bxh3 Qxh3 26. Re4 (26. Qxg5 {doesn't change anything anymore}
Nxc2 27. f4 Nxa3 28. bxa3 c4 $19) 26... Rxe4 (26... Bxe5 $142 {and Black has
prevailed} 27. f4 Qg4+ 28. Rg3 Rd1+ 29. Kg2 Qd7 30. Qxd1 Qxd1 31. fxe5 Qxc2 $19
) 27. fxe4 Qg4+ (27... Qe6 $142 $5 {keeps an even firmer grip} 28. Qxg5 Bxe5
29. Qd8+ Kg7 30. Qh4 $19) 28. Rg3 Qf4 29. Qf1 (29. Qxf4 gxf4 30. e6 fxe6 31.
Rxg6 $19) 29... Bxe5 30. Qg2 (30. Qd1 {is one last hope} Qxe4 31. Re3 $19)
30... Qc1+ 31. Qf1 Qxf1+ 32. Kxf1 Bxg3 33. fxg3 Nxc2 34. Kf2 Nd4 35. Ke3 (35.
g4 {cannot change destiny} Nc6 $19) 35... f5 36. e5 (36. exf5 {the only chance
to get some counterplay} gxf5 37. Kd3 $19) 36... Kf7 37. Kd3 Ke6 38. Kc4 Kxe5
39. Kxc5 f4 40. gxf4+ gxf4 (40... gxf4 41. Kc4 f3 42. b3 f2 43. Kc3 f1=Q 44.
Kb2 Qg2+ 45. Ka3 Qd2 46. b4 axb4#) 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "2.7"]
[White "Denta, Seiichi"]
[Black "Uematsu, Maya"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1376"]
[BlackElo "1269"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "76"]
[EventDate "2025.10.12"]

{[%mdl 8192] D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6
3 Bf4} 1. d4 d5 2. Nf3 c6 3. Bf4 Bf5 4. e3 Nf6 5. Bd3 Bxd3 6. Qxd3 e6 7. Ne5 (
7. O-O Na6 8. c4 Nb4 9. Qe2 dxc4 10. Qxc4 Be7 11. Nc3 Nbd5 12. Bg3 O-O 13. Rfe1
Rc8 14. e4 Nxc3 15. bxc3 Qa5 16. a4 Rfd8 17. Qb3 b6 18. Bh4 Rc7 19. Ne5 Qa6 20.
f4 c5 21. f5 cxd4 {Lein,A (2465)-Stangl,M (2525) Berlin 1993 1/2-1/2 (33)})
7... Bd6 $146 (7... Nbd7 8. Nd2 Be7 9. O-O O-O 10. Bg3 Nh5 11. Qe2 g6 12. c3 f5
13. f4 Nxg3 14. hxg3 Bd6 15. Nxd7 Qxd7 16. Nf3 c5 17. Ng5 Be7 18. Nf3 Bd6 19.
Kf2 c4 20. Rh1 Rae8 21. Rh6 Rf7 22. Rah1 {Amaev,A (2329)-Abramov,A (2212)
Raduzhny 2009 1-0 (55)}) 8. Nc3 Nbd7 (8... O-O 9. O-O $11) 9. h3 {Loses
material} (9. Nxc6 Qb6 10. Bxd6 Qxc6 $16) 9... O-O (9... Qc7 10. Nxd7 Qxd7 11.
O-O $11) 10. O-O (10. Nxf7 Rxf7 11. Bxd6 Qb6 $16) 10... Re8 $2 (10... Qc7 11.
Nxd7 Qxd7 12. Bg5 $11) 11. Nxd7 (11. Nxf7 $142 Kxf7 12. Bxd6 $16) 11... Qxd7
$11 12. Bxd6 Qxd6 13. f4 Rac8 14. a3 h6 15. Rf3 Ne4 (15... c5 $142 $15 {
would allow Black to play on}) 16. Nxe4 $16 dxe4 17. Qxe4 Qd5 18. Qe5 (18. Qd3
c5 $16) 18... Qxe5 (18... c5 $5 19. c3 f6 20. Qxd5 exd5 21. dxc5 Rxc5 $16) 19.
fxe5 $16 ({Inferior is} 19. dxe5 Rcd8 $14) 19... c5 20. Rd1 (20. c3 $5 $16)
20... cxd4 $14 21. exd4 (21. Rxd4 $5 {looks like a viable alternative} Kf8 22.
c3 $14) 21... Rxc2 $11 22. Rf2 Rec8 23. d5 exd5 24. Rxc2 Rxc2 25. b4 Kf8 26.
Rxd5 Re2 (26... Ke7 27. Rb5 Rc7 28. a4 $15) 27. Rd7 {White threatens to win
material: Rd7xb7} Rxe5 28. Rxb7 a6 29. Ra7 f5 $4 (29... Re6 $142 $11 {this is
the best bet to save the position}) 30. Rxa6 $18 f4 (30... Re1+ 31. Kh2 Rb1 32.
Ra5 $18) 31. Ra5 (31. a4 $142 $5 {makes it even easier for White} Ke7 32. b5
Re1+ 33. Kf2 Rb1 $18) 31... Re4 32. b5 Re5 (32... Re1+ 33. Kf2 Rb1 $18) 33. a4
g5 (33... Re1+ {does not help much} 34. Kf2 Rb1 35. Ra7 $18) 34. Ra6 (34. b6
$142 {and the rest is a matter of technique} Rxa5 35. b7 $18) 34... h5 35. b6
Re1+ 36. Kh2 Rb1 37. a5 g4 (37... Kf7 {a last effort to resist the inevitable}
38. Ra8 g4 39. hxg4 hxg4 $18) 38. Ra7 (38. hxg4 $142 {and White has triumphed}
hxg4 39. Ra7 $18) 38... g3# 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "3.1"]
[White "Nishimori, Toshiyuki"]
[Black "kuramoto, koutarou"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1699"]
[BlackElo "1775"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "75"]
[EventDate "2025.10.12"]

{[%mdl 8256] B23: Closed Sicilian: Lines without g3} 1. e4 c5 2. Nc3 e6 3. g3
d5 4. exd5 exd5 5. Bg2 Nf6 6. d4 cxd4 7. Qxd4 {[%cal Rc3d5,Rd4d5,Rg2d5,Gd8d5,
Gf6d5] The pressure on the isolated pawn grows} (7. Nce2 Bb4+ (7... Qa5+ 8. Bd2
Qb6 9. Nf3 Nc6 10. Rb1 Bf5 11. O-O Bd6 12. Bf4 Bxf4 13. Nxf4 O-O 14. Nd3 Rac8
15. a3 Rc7 16. Re1 Rfc8 17. Nh4 Be4 18. f3 Bg6 19. Nxg6 hxg6 20. b4 Ne8 21. f4
Ne7 22. Bh3 {Vilar Lopez,M (2171)-Oliva Castaneda,K (2446) Figueres 2014 0-1 
(31)}) 8. Bd2 Bc5 9. b4 Bb6 10. Nf3 Bg4 11. O-O O-O 12. a4 a6 13. Bf4 Nc6 14.
b5 Nb4 15. bxa6 Rxa6 16. Qd2 Bc5 17. Ne5 Bf5 18. Nd3 Nxd3 19. cxd3 Qa5 20. Qc2
Rc6 21. Rfb1 Bb4 {Krutko,A (2440)-Temirbayev,S (2489) Nizhnij Tagil 2008 1-0 
(47)}) 7... Nc6 8. Qa4 Bb4 $146 (8... d4 9. Nce2 Bd7 10. Qb3 Bb4+ 11. c3 Ba5
12. Nf3 dxc3 13. Nxc3 Qe7+ 14. Be3 Be6 15. Qa4 Nd5 16. O-O Bxc3 17. bxc3 Nxc3
18. Qc2 Nd5 19. Bc5 Qc7 20. Rac1 a6 21. Qb2 Rg8 22. Nd4 Nxd4 23. Bxd4 {Bartsch,
B (2255)-Clemens,C (2380) Germany 1983 1-0}) (8... Bd7 9. Nf3 (9. Nxd5 $4 {
taking the pawn will cause White grave problems} Nxd5 10. Bxd5 Nb4 $19) (9.
Bxd5 $4 {would be a terrible mistake} Bb4 10. Qb5 Bxc3+ 11. bxc3 Ne7 12. Qxb7
Nfxd5 $19) 9... Bc5 10. Qh4 $15) 9. Bd2 (9. Nge2 $5 {must definitely be
considered} Bg4 10. O-O $14) 9... Bg4 $15 10. f3 {Covers e4} (10. Nge2 $5 $15)
10... Bd7 $17 11. a3 $4 {leads to further unpleasantness} (11. O-O-O O-O 12.
Qb5 a6 $17) 11... Bc5 (11... Nd4 12. Qxb4 Nxc2+ 13. Kf1 Nxb4 (13... Nxa1 $6 {
is clearly worse} 14. Nge2 $19) 14. Re1+ Be6 15. axb4 O-O $19) 12. Qf4 (12. Bh3
$5 $17) 12... O-O $19 13. O-O-O d4 14. Ne4 Be7 15. g4 Qb6 16. Nxf6+ (16. Ne2
$17) 16... Bxf6 $19 17. Ne2 $4 {shortens the misery for White} (17. g5 Be5 18.
Qe4 $19) 17... d3 $1 {Clearance: d4} 18. Nc3 (18. cxd3 Qxb2# {Mate attack
Clearance Pinning}) (18. Z0 $140 Qxb2# {Mate threat}) 18... dxc2 (18... Nd4 {
keeps an even firmer grip} 19. Rde1 dxc2 20. Be3 $19) 19. Rde1 $2 (19. Kxc2
Nd4+ 20. Kb1 $19) 19... Nd4 20. b4 (20. Re4 {is still a small chance} Rad8 21.
Rxd4 Bxd4 22. a4 Bxc3 23. Bxc3 $19) 20... Nb3+ (20... Qa6 21. Kb2 Qc4 22. Qxd4
Bxd4 23. Bf1 $19) 21. Kxc2 Nxd2 22. Qxd2 Bxc3 (22... Rac8 $142 {and Black wins}
23. Re3 Rfd8 24. Qe1 $19) 23. Kxc3 Rac8+ 24. Kb2 Ba4 25. Rc1 Qf6+ (25... Rcd8
$142 {and the result of the game is clear: Black will win} 26. Qc3 Qf2+ 27. Kb1
Qxg2 $19) 26. Kb1 Rfd8 (26... Rcd8 27. Qe3 Rfe8 28. Qc3 Qg6+ 29. Kb2 Re2+ 30.
Ka1 $19) 27. Qe2 $2 (27. Rxc8 $5 Rxc8 28. Rc1 $17) 27... Qg6+ (27... Rc3 28.
Rxc3 Qxc3 29. Rc1 Qxa3 30. Qd2 $19) 28. Qe4 Qd6 29. Qe2 Qd5 30. f4 Qb3+ 31. Qb2
Qd3+ 32. Ka1 Qe3 33. f5 $4 {an oversight. But White was lost anyway.} (33. Bxb7
Rxc1+ 34. Rxc1 h5 $19) 33... b6 (33... Rxc1+ 34. Rxc1 h5 35. Bf1 $19 (35. gxh5
$4 Rd2 36. Qc3 Rd3 37. Qxd3 Qxd3 $19) (35. Bxb7 $4 {That pawn is poisoned} Rd2
36. Rc8+ Kh7 $19)) 34. Rhe1 $2 (34. Rce1 $142 $5 Qf4 35. Re4 $19) 34... Rxc1+
$19 35. Qxc1 Qf2 (35... Qd4+ 36. Kb1 $19) 36. Bf1 $2 (36. Bb7 h6 37. Rf1 Qxh2
$19) 36... Qxh2 (36... h5 37. Re2 Qg1 38. Rg2 (38. gxh5 $4 {the pawn contains
a lethal dose of poison} Rd1 39. Re8+ Kh7 40. Qxd1 Bxd1 $19) 38... Qd4+ 39. Rb2
$19) 37. b5 Qf4 $4 {simply marches past the door to victory} (37... Qf2 $142 {
would have made live much easier for Black} 38. Re4 Bb3 $19) 38. Qxf4 $18 (38.
Qxf4 Bb3 39. Kb2 $18) 1-0

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "3.2"]
[White "Sugimoto, Koichi"]
[Black "Nakamura, Mitsuru"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1866"]
[BlackElo "1579"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "57"]
[EventDate "2025.10.12"]

{[%mdl 8192] D00: 1 d4 d5: Unusual lines} 1. d4 d5 2. Nc3 Nf6 3. Bf4 Bf5 4. f3
e6 5. g4 Bg6 6. h4 h5 7. g5 Nfd7 8. e3 a6 9. Bd3 Bxd3 10. Qxd3 c5 11. g6 f6 12.
Nge2 Nc6 13. a3 c4 $146 {Black threatens to win material: c4xd3} (13... Qb6 14.
Bh2 O-O-O 15. O-O-O Na5 16. Na4 Qc6 17. Nxc5 Bxc5 18. dxc5 Nxc5 19. Qc3 e5 20.
b3 d4 21. exd4 exd4 22. Nxd4 Ncxb3+ 23. Kb2 Nxd4 24. Rxd4 Rxd4 25. Qxd4 Nc4+
26. Ka1 Re8 27. Qa7 Re3 28. Qb8+ {Ipatov,A (2614)-Kantans,T (2496) Tromso 2014
0-1 (57)}) (13... Be7 14. Bg3 Nf8 15. Nf4 c4 16. Qd2 Bd6 17. Rg1 Rh6 18. e4
Bxf4 19. Bxf4 Rxg6 20. O-O-O Kf7 21. Bg3 b5 22. Qf4 Ne7 23. Rge1 Ra7 24. Re2
Rd7 25. Bh2 dxe4 26. Rxe4 Rg2 27. Re2 Rxe2 28. Nxe2 {Carlstedt,J (2460)
-Thogersen,R (2192) Helsingor 2015 0-1 (61)}) 14. Qd2 b5 (14... Qa5 15. O-O-O
$11) 15. e4 $14 b4 16. axb4 Bxb4 17. exd5 exd5 18. Qe3+ Qe7 19. Kf2 Qxe3+ 20.
Bxe3 Bxc3 (20... Nb6 21. Bf4 Ra7 22. Nd1 $14) 21. Nxc3 (21. bxc3 Ne7 22. Nf4
Nb8 $16) 21... Ne7 (21... Nb6 $5 $14) 22. Ra5 $16 Nb6 23. Rg1 (23. Bf4 Kd7 $16
(23... Nxg6 $2 {doesn't work} 24. Re1+ Kf7 25. Bc7 $18)) 23... O-O (23... Kd7
24. Bf4 $14) 24. Rc5 Rfc8 25. Bf4 Rc6 26. Ne2 (26. Re1 Rxc5 27. dxc5 Nxg6 28.
cxb6 Nxf4 $18) 26... Rac8 27. c3 (27. Ra5 Na8 $16) 27... Nf5 (27... Rxc5 $142 {
is a viable option} 28. dxc5 Na4 $11) 28. Ra5 $16 Nd7 $4 {causes further
problems for White} (28... Nxh4 $142 29. Rxa6 Ra8 30. Rxa8+ Nxa8 $16) 29. Rxd5
$18 1-0

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "3.3"]
[White "Yoshii, Yukihiko"]
[Black "Kaga, Kazuyuki"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "1753"]
[BlackElo "1481"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "149"]
[EventDate "2025.10.12"]

{[%mdl 8256] E70: King's Indian: Miscellaneous lines with 4 e4, including 5
Nge2 and 5 Bd3 0-0 6 Nge2} 1. c4 g6 2. Nc3 Bg7 3. d4 d6 4. e4 Nf6 5. Bd3 O-O 6.
Nge2 e5 7. dxe5 (7. O-O exd4 8. Nxd4 Nc6 9. Nxc6 bxc6 10. Bg5 h6 11. Bd2 Ng4
12. h3 Ne5 13. Be2 c5 14. f4 Nc6 15. f5 Nd4 16. Bd3 c6 17. Qe1 g5 18. Qf2 Be5
19. Be2 Nc2 20. Kh1 Nxa1 21. Rxa1 Rb8 {Hansen,L (2569)-Fries Nielsen,J (2430)
Aalborg 2000 1/2-1/2}) 7... dxe5 8. O-O Nc6 $146 (8... c6 9. Bg5 h6 10. Bh4 Qe7
11. f3 Nbd7 12. Qc1 Nc5 13. Bc2 a5 14. Bf2 Be6 15. b3 Rfd8 16. Be3 Kh7 17. Rd1
Rxd1+ 18. Qxd1 Rd8 19. Qe1 Nd3 20. Bxd3 Rxd3 21. Qf2 Bf8 22. Rd1 Rxd1+ 23. Nxd1
{Scherbov,G (2322)-Golub,S (2156) Lubny 2011 0-1 (41)}) 9. h3 {Secures g4} Be6
10. a3 {Consolidates b4} (10. Nd5 Nd4 $11 (10... Nxd5 $143 11. cxd5 Nb4 12. Bc4
$16)) 10... Na5 11. b3 $2 (11. Nd5 c6 (11... Nxd5 $2 12. cxd5 (12. exd5 $6 Bd7
$14) 12... Bxd5 13. exd5 $18) 12. Ne3 b5 $11) 11... b6 (11... Nxb3 $142 $5 12.
Qxb3 Qxd3 13. Qxb7 Qxc4 $17 (13... Bxc4 $143 14. Rd1 Qc2 15. Rd2 $15)) 12. Rb1
c5 (12... c6 13. Qc2 $11) 13. Qc2 (13. Nd5 Nd7 $14) 13... Rc8 14. Rd1 Nc6 15.
Nd5 Ne7 (15... Nd4 $5 16. Qa2 Nxd5 17. cxd5 Bd7 $11) 16. Nec3 Bd7 (16... Nc6
17. Bg5 $14) 17. Bg5 (17. Nxe7+ Qxe7 18. Be2 $16) 17... Nfxd5 (17... Nc6 $142
$5 $14 {should not be overlooked}) 18. cxd5 $16 (18. Nxd5 $6 f6 19. Be3 Nc6 $14
) (18. exd5 $6 f6 19. Be3 Nf5 $11) 18... f6 19. Be3 g5 (19... f5 20. f3 Be8 $16
) 20. Bc4 Kh8 21. a4 Ng6 22. Kh2 (22. Ba6 $142 $5 $18) 22... f5 $16 23. exf5
Bxf5 24. Bd3 Bxd3 25. Qxd3 Rf6 $4 {another step towards the grave} (25... Nf4
$142 26. Qd2 g4 $14) 26. Bxg5 $18 Nf4 27. Qe4 (27. Bxf6 {seems even better}
Qxf6 28. Qf3 Ng6 29. Qxf6 Bxf6 $18) 27... Qf8 (27... Qd7 {is no salvation} 28.
Bxf6 Bxf6 29. Ne2 $18) 28. Bxf6 Bxf6 (28... Qxf6 {doesn't improve anything} 29.
g3 Nh5 30. Rb2 $18) 29. Rd2 (29. g3 $142 {keeps an even firmer grip} Ng6 $18)
29... Qh6 30. Rbd1 (30. Qf3 $142 {seems even better} Bg5 31. Rdd1 Rg8 $18)
30... Rg8 31. Qe1 $4 {overlooking an easy win} (31. g3 $142 {a shame that
White overlooked this excellent chance} Qxh3+ 32. Kg1 $18) 31... Nxg2 (31...
Rxg2+ 32. Kh1 Qxh3#) 32. Qe2 Qf4+ (32... Nf4 $5 {is an interesting alternative}
33. Qe3 Rg5 $11) 33. Kh1 $14 Nh4 $2 (33... Qh6 $142 34. Qf3 Nh4 $14) 34. Rg1 $4
{instead of simply winning the game} (34. Qe4 $142 $18) 34... Bg5 (34... Nf3
$142 {and Black wins} 35. Rxg8+ Kxg8 $19) 35. Ne4 $4 {stumbles just before the
finish line} (35. Rd3 {makes it even easier for White} Qf5 $18) 35... h6 $4 {
gives the opponent new chances} (35... Nf3 $142 {is just about the only chance}
36. Rg3 Nxd2 37. Nxd2 Qxd2 38. Qxe5+ Rg7 39. Qe8+ Rg8 40. Qe5+ Rg7 41. Qe8+ Rg8
42. Qe5+ $11) 36. Rd3 $18 Nf5 (36... Bd8 {doesn't get the cat off the tree} 37.
d6 Rxg1+ 38. Kxg1 Qc1+ 39. Kh2 Qf4+ 40. Kh1 $18) 37. d6 (37. Nxg5 $142 {
secures the win} Rxg5 38. Rxg5 Qxg5 39. Qxe5+ Ng7 40. Re3 $18) 37... Nd4 38.
Nxg5 (38. Qg4 $142 {might be the shorter path} Qxg4 39. Rxg4 $18 (39. hxg4 $6
Kg7 $18)) 38... hxg5 (38... Nxe2 $142 {finishes off the opponent} 39. d7 Nd4
$19 (39... Rxg5 {is refuted with a beautiful mate} 40. d8=Q+ Kg7 41. Rd7+ Kg6
42. Rd6+ Kf7 43. Qc7+ Kg8 44. Rg6+ Rxg6 45. Rxg6+ Kf8 46. Qd6+ Ke8 47. Re6+ Kf7
48. Qe7+ Kg8 49. Rg6+ Kh8 50. Qg7#)) 39. Qg4 (39. Qh5+ Kg7 40. Rxg5+ Kf8 41.
Rxg8+ Kxg8 42. d7 Qe4+ 43. Kh2 Kg7 44. Rg3+ Kf6 45. d8=Q+ Ke6 46. Qhe8+ Kf5 47.
Qf7#) 39... Qxg4 $18 40. Rxg4 (40. hxg4 $6 Kg7 $18) 40... Ne6 (40... Rg6 $18)
41. Rd5 Rd8 42. Kh2 (42. Re4 $142 {keeps an even firmer grip} Nf4 43. Rdxe5
Rxd6 44. Rxg5 Rf6 $18) 42... Kg7 43. Rg1 (43. Re4 {and White can already relax}
Nd4 44. d7 Kf6 $18) 43... Kh6 $2 (43... Kf6 $142 44. Re1 Nd4 $16) 44. Rgd1 (44.
Re1 $5 {seems even better} Nf4 45. Rd2 Ng6 $18) 44... Nd4 45. Rd3 Kg6 46. Re3 (
46. d7 {and White can already relax} Kf5 47. Re3 Nc6 $18) 46... Kf6 (46... Rd7
$142 $18) 47. Kg3 $4 {ruins a very nice position} (47. d7 $142 $18 {and White
takes home the point}) 47... Nf5+ $11 {Black forks: d6+e3} 48. Kf3 Nxe3 49.
Kxe3 {A rook endgame occured} Kf5 (49... Ke6 $142 {is the best option Black has
} 50. Ke4 Rxd6 51. Rxe5+ Kf6 52. Rf5+ Kg6 $11) 50. d7 $16 Ke6 51. Ke4 Rxd7 52.
Rxd7 (52. Rxe5+ $6 Kf6 53. Rf5+ Kg6 $11) 52... Kxd7 53. Kxe5 Kc6 54. Kf5 (54.
Ke4 $142 $16) 54... b5 $11 55. Kxg5 bxa4 56. bxa4 {White has new passed pawns:
f2+h3. Black has a new passed pawn: c5.} c4 $4 {an unfortunate move that
relinquishes the win} (56... Kd5 $142 {the rescuing straw} 57. Kf4 Kd4 $11) 57.
Kf4 $18 Kc5 58. Ke3 Kb4 59. Kd2 Kb3 60. Kc1 Kc3 61. h4 Kd4 62. h5 Ke5 63. h6
Kf6 64. h7 Kg7 65. h8=Q+ $1 {it's all over.} Kxh8 66. Kc2 Kg7 {[%cal Rc2c3] If
Black now would get Kc3 in, he might survive} 67. Kc3 Kf6 68. Kxc4 Ke5 69. Kc5
Kf4 (69... Ke6 {hardly improves anything} 70. Kc6 a5 71. Kb5 Kd6 72. Kxa5 Kc6
73. f3 Kd6 74. Kb6 Ke6 75. a5 Ke7 76. a6 Ke6 77. f4 Kd5 78. f5 Ke5 79. f6 Kd6
80. Kb7 Ke6 81. a7 Kxf6 82. a8=Q Kg7 83. Qc8 Kf7 84. Qf5+ Kg8 85. Qg4+ Kf8 86.
Kb6 Kf7 87. Kc7 Ke8 88. Kd6 Kf7 89. Qg5 Kf8 90. Ke6 Ke8 91. Qe7#) 70. a5 Kf3 (
70... Kf5 {is not the saving move} 71. Kb5 Kf6 72. Ka6 Ke7 73. Kxa7 Kd6 74. Kb6
Ke5 75. f4+ Kd4 76. a6 Ke4 77. f5 Kd3 78. f6 Kc3 79. f7 Kb2 80. f8=Q Kc3 81.
Qf3+ Kd2 82. Qf2+ Kd3 83. a7 Kc4 84. a8=Q Kc3 85. Qa4 Kd3 86. Qad4#) 71. a6
Kxf2 72. Kc6 Ke3 (72... Kf3 {doesn't do any good} 73. Kb7 Ke2 74. Kxa7 Kd3 75.
Kb6 Kd4 76. a7 Kd5 77. a8=Q+ Ke5 78. Kc5 Kf5 79. Qd5+ Kg6 80. Qe6+ Kg5 81. Qe3+
Kf5 82. Qf3+ Ke5 83. Qg4 Kf6 84. Kd6 Kf7 85. Qg5 Kf8 86. Ke6 Ke8 87. Qe7#) 73.
Kb7 Kd4 (73... Ke4 {a fruitless try to alter the course of the game} 74. Kxa7
Kf3 75. Kb6 Kf4 76. Kc5 Ke5 77. a7 Kf6 78. a8=Q Kf5 79. Qf3+ Ke5 80. Qg4 Kf6
81. Kd6 Kf7 82. Qg5 Kf8 83. Ke6 Ke8 84. Qe7#) 74. Kxa7 Kc5 (74... Kd3 {does
not save the day} 75. Kb6 Kd4 76. a7 Kd5 77. a8=Q+ Ke5 78. Kc5 Kf5 79. Qf3+ Ke6
80. Qg4+ Ke5 81. Kc6 Kf6 82. Kd6 Kf7 83. Qg5 Kf8 84. Ke6 Ke8 85. Qe7#) 75. Kb7
(75. Kb7 Kd5 76. Kb6 Kc4 77. a7 Kd4 78. Kc7 Kd5 79. a8=Q+ Ke6 80. Qe4+ Kf6 81.
Kd7 Kf7 82. Qh7+ Kf6 83. Qh5 Kg7 84. Ke6 Kg8 85. Kf6 Kf8 86. Qf7#) 1-0

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "3.4"]
[White "Kawashima, Tsukasa"]
[Black "Furuse, Mizuki"]
[Result "0-1"]
[ECO "A45"]
[BlackElo "1584"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "90"]
[EventDate "2025.10.12"]

{[%mdl 8192] A45: Trompowsky Attack} 1. d4 Nf6 2. Nc3 g6 3. Bg5 Bg7 4. Qd2 O-O
$146 (4... h6 5. Bf4 (5. Bh4 d5 6. O-O-O c6 7. f3 b5 8. e4 Be6 9. Bxf6 Bxf6 10.
e5 Bg7 11. f4 Qa5 12. a3 Nd7 13. Na2 Qxd2+ 14. Kxd2 a5 15. Nf3 Nb6 16. b3 Bg4
17. Ke3 a4 18. b4 f6 19. h3 Bxf3 {Vlashki,N (2253)-Raev,R (2259) Sunny Beach
2014 0-1}) 5... d6 (5... c5 6. dxc5 Na6 7. e4 Nxc5 8. f3 d6 9. O-O-O Qa5 10.
Nge2 h5 11. Kb1 O-O {1/2-1/2 (11) Martinez Catalan,F (2240)-Saldano Dayer,H 
(2422) Aragon 2007}) (5... d5 6. f3 c5 7. O-O-O cxd4 8. Nb5 Na6 9. Nxd4 Nd7 10.
Nb3 Qb6 11. Be3 Qf6 12. c3 Nc7 13. f4 O-O 14. Bd4 Qc6 15. Bxg7 Kxg7 16. Nf3 Nf6
17. e3 Qa4 18. Kb1 Bf5+ 19. Bd3 Bxd3+ 20. Qxd3 {Petrovic,M (2290)-Donaldson
Akhmilovskaya,E (2295) Teslic 1979 0-1 (62)}) 6. O-O-O c6 7. e4 Qa5 8. Nf3 b5
9. e5 dxe5 10. dxe5 Nfd7 11. Kb1 Nc5 12. a3 Ne6 13. Ne4 Qxd2 14. Bxd2 Nd7 15.
Bc3 Bb7 16. Bd3 a6 17. Rhe1 c5 18. Ned2 O-O-O 19. Ba5 {Juglard,E (2260)-Efimov,
I (2525) France 1998 0-1 (41)}) (4... c6 5. Bh6 Bxh6 6. Qxh6 Qa5 7. e3 b5 8.
Bd3 b4 9. Nd1 Ba6 10. b3 Bxd3 11. cxd3 Na6 12. Nf3 Nc7 13. Nb2 Ne6 14. Nc4 Qf5
15. e4 Qf4 16. Qxf4 Nxf4 17. g3 Nxd3+ 18. Ke2 Nxe4 19. Kxd3 {Dmitriev,I (2391)
-Zakharevich,I (2523) Saratov 1999 0-1 (43)}) 5. Bh6 (5. e4 d5 6. Bxf6 exf6 (
6... Bxf6 $143 7. Nxd5 Bg7 8. Nf3 $16) 7. exd5 Re8+ 8. Be2 Nd7 $11) 5... c5 6.
d5 d6 (6... Bxh6 7. Qxh6 b5 8. Nf3 $11) 7. Bxg7 $11 Kxg7 8. e4 a6 {Prevents
intrusion on b5} 9. Be2 (9. f4 Qc7 10. Nf3 Nbd7 $11) 9... b5 10. Bf3 Nbd7 11.
h4 h5 12. Rh3 (12. Nh3 Ne5 $15) 12... Ne5 13. Rg3 Bd7 (13... Nc4 14. Qc1 $17)
14. Nh3 b4 {Black threatens to win material: b4xc3} 15. Ne2 Bxh3 16. gxh3 (16.
Rxh3 Qa5 $11) 16... Nxf3+ $15 17. Rxf3 Nxe4 18. Qe3 {White threatens to win
material: Qe3xe4} Nf6 {Black threatens to win material: Nf6xd5} 19. O-O-O Qd7
20. b3 (20. Qg5 $5 $15 {should be considered}) 20... a5 $17 21. Rg3 (21. Ng3 $5
Kh7 22. Ne4 Nxe4 23. Qxe4 $17) 21... a4 $19 22. f3 $2 (22. Qd3 $142 $19) 22...
axb3 23. Qxb3 (23. axb3 {the last chance for counterplay} Ra1+ 24. Kd2 Nxd5 25.
Qe4 $19) 23... Ra3 24. Qb2 (24. Qc4 {cannot change destiny} Rfa8 25. Rd3 Rxa2
$19) 24... Kh7 (24... Qb5 $142 {might be the shorter path} 25. Kd2 Rfa8 26. Ke1
Rxa2 27. Nc3 Rxb2 28. Nxb5 Rxc2 29. Rd2 Ra1+ 30. Ke2 $19) 25. Rdg1 (25. Rd3 Qb5
26. Kd1 (26. Rxa3 $4 {taking the pawn is naive} Qxe2 27. Rg1 bxa3 28. Qxa3 Nxd5
$19) 26... Rxd3+ 27. cxd3 Qxd3+ 28. Qd2 $19) 25... Rfa8 26. Nf4 (26. Kd2 {
is the last straw} Qf5 27. Rd1 Nxd5 28. Rb1 $19) 26... Rxa2 27. Qb3 Qf5 28. Nd3
R8a3 29. Qc4 Rxc2+ (29... b3 30. R1g2 Ra1+ 31. Kd2 bxc2 32. Kxc2 Nxd5 33. Qxd5
Qxd5 34. f4 Qa2+ 35. Nb2 Qb1+ 36. Kd2 Qxb2#) 30. Kxc2 Rc3+ 31. Qxc3 bxc3 32.
Kxc3 (32. Rg5 {cannot undo what has already been done} Qxf3 33. Re1 c4 $19)
32... Nxd5+ 33. Kd2 Qf6 (33... c4 34. f4 cxd3 35. Rxd3 Qxf4+ 36. Kd1 Qa4+ 37.
Ke1 Qe4+ 38. Kd2 Qb4+ 39. Kc2 Qc5+ 40. Kb2 Qb6+ 41. Rb3 Qf2+ 42. Ka3 Qxg1 43.
Ka2 $19) 34. f4 Qc3+ (34... c4 $5 {and Black can already relax} 35. Ne1 Qb2+
36. Kd1 $19) 35. Ke2 Qc2+ 36. Kf1 Qd2 37. f5 (37. Ne1 {does not improve
anything} Nxf4 38. R1g2 Nxg2 39. Rxg2 Qe3 $19) 37... Ne3+ 38. Rxe3 Qxe3 39.
fxg6+ fxg6 40. Ne1 Qxh3+ 41. Ng2 (41. Ke2 {does not solve anything} Qh2+ 42.
Kf1 c4 $19) 41... c4 (41... Qf3+ 42. Ke1 c4 43. Rf1 Qxg2 44. Rf2 Qg3 45. Ke2
Qd3+ 46. Ke1 c3 47. Rf7+ Kh6 48. Kf2 c2 49. Kg2 c1=Q 50. Rf3 Qe2+ 51. Rf2 Qcf1+
52. Kg3 Qexf2#) 42. Ke1 d5 (42... Qg3+ 43. Ke2 d5 44. Ra1 Qxg2+ 45. Ke3 Qe4+
46. Kd2 Qd4+ 47. Ke2 Qxa1 48. Kf2 c3 49. Ke2 Qb2+ 50. Kf3 Qh2 51. Ke3 e5 52.
Kf3 e4+ 53. Ke3 Qd2#) 43. Kd2 d4 44. Nf4 (44. Kd1 {is not much help} Qd3+ 45.
Ke1 Qg3+ 46. Kd1 Qf3+ 47. Kc1 Qf2 48. Re1 c3 49. Rxe7+ Kh6 50. Rb7 Qd2+ 51. Kb1
c2+ 52. Kb2 c1=Q+ 53. Kb3 Qdb2+ 54. Ka4 Qca1#) 44... Qe3+ 45. Kd1 (45. Kc2 {
does not improve anything} Qxg1 46. Nh3 Qh2+ 47. Kb1 c3 48. Ng5+ Kg8 49. Kc1 d3
50. Ne6 Qc2#) 45... Qxg1+ (45... Qxg1+ 46. Kc2 Qf2+ 47. Kb1 Qxf4 48. Kb2 Qb8+
49. Kc1 Qh2 50. Kb1 c3 51. Kc1 Qe2 52. Kb1 Qb2#) 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "3.5"]
[White "Shishido, Kenta"]
[Black "Uematsu, Maya"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "1483"]
[BlackElo "1269"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "103"]
[EventDate "2025.10.12"]

{[%mdl 8192] B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6
} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be2 O-O
8. O-O Re8 9. Re1 Be6 (9... Bf5 10. Be3 Nd7 11. h3 Be4 12. Nd2 f5 13. Nxe4 fxe4
14. c4 Qc7 15. Bf1 Bh2+ 16. Kh1 Bf4 17. Qd2 Bxe3 18. Qxe3 Nf6 19. Rad1 Rad8 20.
Rd2 h6 21. g3 Qa5 22. b3 Rd7 23. Bg2 Red8 24. Red1 {Karpov,A (2705)-Hort,V 
(2600) Tilburg 1979 1-0 (73)}) 10. b3 $146 {Prevents intrusion on c4} (10. Be3
Nd7 11. c4 (11. Qd2 Nf8 12. Bf4 Bxf4 13. Qxf4 Bd5 14. Qd2 Ne6 15. c3 Qd6 16. g3
c5 17. dxc5 Qxc5 18. Nd4 Rad8 19. Rad1 Qb6 20. b3 Ng5 21. h4 Ne4 22. Qb2 Nc5
23. Bf1 Rxe1 24. Rxe1 Ne6 25. Bg2 Bxg2 {Sbarra,M (2217)-Lanzani,M (2356) Milan
2003 1/2-1/2 (35)}) 11... Nf8 12. Qb3 (12. Qc2 Ng6 13. Bd3 Qd7 14. Nd2 f5 15.
f3 Bc7 16. Rad1 Qd6 17. g3 h5 18. Bxf5 Bxf5 19. Qxf5 Rxe3 20. Rxe3 Qxd4 21. Qe4
Bb6 22. Qxd4 Bxd4 23. Nf1 Bxe3+ 24. Nxe3 Re8 25. Kf2 Nf8 26. b4 g6 {Garcia
Cardenas,P (2324)-Alarcon Bahamondes,R (2154) Santiago de Chile 2010 1/2-1/2 
(33)}) 12... b5 13. Qc2 bxc4 14. Bxc4 Qd7 15. Bxe6 Nxe6 16. Rac1 Rec8 17. Qa4
Qb7 18. Rc2 Qb5 19. Qxb5 cxb5 20. Rec1 {1/2-1/2 (20) Beerdsen,T (2291)-Lai,H 
(2317) Rotterdam 2015}) 10... Nd7 11. Bb2 Rc8 12. Bf1 c5 (12... Qa5 13. c4 $11)
13. c4 (13. d5 Bg4 $14) 13... Bg4 (13... cxd4 14. Qxd4 Bc5 15. Qh4 $11) 14. Qd3
(14. Rxe8+ Qxe8 15. Qd3 Qd8 $14) 14... Qc7 $11 15. Rad1 (15. h3 $142 Bxf3 16.
Qxf3 (16. gxf3 $143 cxd4 17. Rxe8+ Rxe8 $17) 16... cxd4 17. Rxe8+ Rxe8 18. Bxd4
$11) 15... Bxh2+ $4 {a transit from better to worse} (15... Rxe1 $142 {would
keep Black in the game} 16. Rxe1 cxd4 17. Bxd4 Nc5 $15) 16. Nxh2 $16 Bxd1 17.
Qxd1 Qd6 (17... cxd4 18. Nf3 $16) 18. dxc5 (18. d5 $5 Rxe1 19. Qxe1 Ne5 $18)
18... Qxd1 $16 19. Rxd1 Nxc5 20. Nf3 Rcd8 21. Nd4 Ne6 22. g3 Ng5 23. Kg2 Ne6
24. f3 f5 25. Kf2 Rd7 (25... f4 26. g4 $16) 26. f4 h6 (26... Red8 27. Nxe6 $1 {
White takes the lead} Rxd1 28. Nxd8 Rxd8 29. Ke3 $16) 27. Bg2 $18 g5 (27... Nc5
28. Bd5 Ne4+ 29. Kf3 $18) 28. Bd5 gxf4 $2 (28... Nxd4 29. Rxd4 b5 30. Bc3 $18 (
30. cxb5 $143 Red8 $17)) 29. gxf4 (29. Nxf5 $142 {secures victory} fxg3+ 30.
Kxg3 $18) 29... Nxf4 30. Rg1+ $4 {White loses the upper hand} (30. Kf3 Nxd5 31.
Nxf5 $18 (31. cxd5 $143 Rxd5 32. Rc1 Red8 $15)) 30... Kh7 $11 31. Kf3 (31. Rg3
Nxd5 32. cxd5 Rxd5 $15) 31... Nxd5 $15 32. cxd5 Rxd5 33. Ne2 $4 (33. Rc1 $142
$15 {this is the best way to fight back}) 33... Rd3+ $19 34. Kf2 (34. Kf4 {
doesn't get the bull off the ice} Rxe2 35. Rg7+ Kh8 36. Rg2+ Rxb2 37. Rxb2 Rd5
$19) 34... Rd2 35. Rg7+ Kh8 36. Rxf7+ (36. Bf6 {doesn't change anything anymore
} Rexe2+ (36... Rdxe2+ $143 37. Kf3 R2e6 38. Rg6+ Rxf6 39. Rxf6 $19) 37. Kf1
Re6 (37... Rxa2 $6 {is easily refuted} 38. Rg4+ Kh7 39. Rg7+ Kh8 40. Rg4+ Kh7
41. Rg7+ Kh8 $11) 38. Rg2+ Rxf6 39. Rxd2 Kg7 $19) 36... Kg8 (36... Rxb2 $142 {
secures the point} 37. Kg3 Rexe2 38. Rxb7 Rxa2 39. Kf4 Rf2+ 40. Ke5 $19) 37.
Rg7+ Kh8 (37... Kf8 $142 {and Black has it in the bag} 38. Bf6 Rdxe2+ 39. Kf3
R8e3+ 40. Kf4 Re6 $19) 38. Re7+ $16 Rxb2 39. Rxe8+ Kg7 40. Re7+ Kf6 {Black
threatens to win material: Kf6xe7} 41. Rxb7 h5 $4 {another bit of territory
lost} (41... Rxa2 $142 42. Ke3 h5 $16) 42. Rxa7 $18 h4 43. Ra4 Kg5 44. Kf3 h3
45. Ng3 (45. Ra8 $142 $5 {keeps an even firmer grip} h2 46. Rg8+ Kf6 $18) 45...
h2 (45... Rd2 46. Ra8 $18) 46. Nh1 (46. Ra5 {and White can already relax} Kg6
$18) 46... Rb1 (46... Kf6 47. Ra5 $18) 47. Kg2 Rb2+ 48. Kg3 f4+ $2 (48... Kf6
49. Ra5 Kg6 $18) 49. Rxf4 Rxa2 50. Rh4 {White threatens to win material: Rh4xh2
} (50. Rf2 $142 {ends the debate} Ra1 51. Kxh2 $18) 50... Rb2 $11 {Black
threatens to win material: Rb2xb3} 51. Rb4 Rb1 $4 (51... Kf5 $142 $11 {was
possible}) 52. Kxh2 $18 1-0

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.12"]
[Round "3.6"]
[White "Denta, Seiichi"]
[Black "Yajima, Machiko"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1376"]
[BlackElo "1327"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "89"]
[EventDate "2025.10.12"]

{[%mdl 8192] D00: 1 d4 d5: Unusual lines} 1. d4 g6 2. Nf3 d5 3. Nc3 Nf6 4. h3
Bg7 5. Bf4 c6 $146 {Controls b5} (5... O-O 6. e3 c5 (6... b6 7. Be2 Bb7 8. O-O
Nbd7 9. a4 a6 10. Re1 Rc8 11. Ne5 c5 12. Ra3 e6 13. Bf3 Qe7 14. Rb3 Rfd8 15.
Qa1 h6 16. Bh2 Bf8 17. Ra3 Nxe5 18. Bxe5 Nd7 19. Bf4 Bg7 20. Rd1 g5 21. Bg3 {
Nikolic,S (2277)-Livaja,M (2228) Serbia 2011 0-1 (59)}) 7. Be2 (7. g4 Nc6 8.
Bg2 cxd4 9. exd4 Ne4 10. Ne5 Qa5 11. Nxc6 bxc6 12. Bxe4 dxe4 13. Qd2 Rd8 14.
Nxe4 Qd5 15. Ng3 Ba6 16. b3 Qe6+ 17. Be3 Rxd4 18. Qa5 Rd5 19. Qxa6 Bxa1 20. O-O
Be5 21. Qb7 Rad8 {Koteski,D (2218)-Nedev,T (2466) Struga 2015 0-1}) 7... Nc6 (
7... cxd4 8. exd4 Nc6 9. O-O Bf5 10. g4 Be6 11. Ng5 Bd7 12. Be3 h6 13. Nf3 Be6
14. Ne5 Nd7 15. f4 Ndxe5 16. fxe5 Bxe5 17. dxe5 d4 18. Bxh6 dxc3 19. Qxd8 Rfxd8
20. bxc3 Nxe5 21. Bf4 Nd7 22. a4 {Balshan,A (2435)-Kraidman,Y (2460) Netanya
1975 0-1 (77)}) 8. dxc5 Qa5 9. O-O Qxc5 10. Nd2 Qb6 11. Nb3 Bf5 12. Bf3 Rfd8
13. a4 a5 14. g4 Be4 15. Qe2 Bxf3 16. Qxf3 e5 17. Bg5 Nb4 18. Rad1 h6 19. Bh4
e4 20. Qe2 {Balshan,A (2435)-Shamkovich,L (2505) Netanya 1975 1/2-1/2 (73)}) 6.
e3 Nh5 7. g3 {Covers f4} (7. Bh2 $5 $14 {must definitely be considered}) 7...
Nxf4 8. exf4 {Black has the pair of bishops} (8. gxf4 Qb6 9. b3 Qa5 $11) 8...
O-O 9. Bg2 h6 {Controls g5} (9... Qb6 10. Rb1 $15) 10. O-O Na6 11. a3 {Secures
b4} Bd7 12. Re1 Qc8 13. g4 {Black has a cramped position} (13. Qd2 Nc7 $11)
13... h5 {Black threatens to win material: h5xg4} 14. Ne5 (14. gxh5 $142 Bxh3
15. Ne5 $11) 14... Be6 $4 {Black is ruining his position} (14... Bxe5 15. Rxe5
hxg4 16. hxg4 Bxg4 17. Bf3 Bxf3 18. Qxf3 $17) 15. Re3 $4 {there were better
ways to keep up the pressure} (15. gxh5 $5 Bf5 16. hxg6 fxg6 17. Re3 $16) 15...
h4 (15... Bxe5 $142 $5 {has some apparent merit} 16. fxe5 hxg4 17. hxg4 Bxg4
$15) 16. Kh2 {Black has a cramped position} Bh6 {Black threatens to win
material: Bh6xf4} 17. g5 {White threatens to win material: g5xh6} (17. Qf3 Qc7
$14) 17... Bg7 $11 {Black has a cramped position} 18. Nf3 {White threatens to
win material: Nf3xh4} Qb8 {Black threatens to win material: Qb8xf4} 19. Ne5 (
19. Ne2 $5 $11) 19... Bf5 $15 {Black has a cramped position. The bishop feels
good on f5} 20. Kg1 (20. Ne2 $5 Nc7 21. Rb3 Bxe5 22. fxe5 $15) 20... f6 $17 21.
Nf3 Qxf4 22. Ne2 Qd6 23. Nxh4 fxg5 24. Nf3 Be4 (24... Rae8 25. Ng3 $17) 25.
Nxg5 $15 Bxg2 26. Kxg2 {White king safety dropped} Qf6 {Black threatens to win
material: Qf6xg5. Black forks: g5+f2} (26... e5 27. dxe5 Bxe5 28. Nd4 $15) 27.
Nf3 (27. f4 $142 $5 {should be examined more closely} Nc7 28. Qd3 $14) 27... c5
28. c3 $2 {Consolidates b4} (28. dxc5 Qf7 29. Qe1 Nxc5 $11) 28... Rac8 $4 {
Loses material. letting the wind out of his own sails} (28... Bh6 29. Ng3 Bxe3
30. fxe3 cxd4 31. cxd4 $19) 29. Qe1 $2 (29. dxc5 Rcd8 (29... Rxc5 $143 30. Ned4
$16) 30. Ned4 Nxc5 $11) 29... Nc7 $4 {allows the opponent back into the game} (
29... Bh6 $142 {Black missed this excellent chance} 30. Nc1 Bxe3 31. Qxe3 cxd4
32. cxd4 Qf4 33. Qxf4 Rxf4 $17) 30. Ne5 $11 c4 {This push gains space} (30...
cxd4 $142 $5 {and Black hangs on} 31. Nxd4 Qg5+ 32. Ng4 Rce8 $11) 31. Nd7 Qg5+
32. Ng3 (32. Rg3 $5 Qf5 33. Nxf8 Rxf8 34. f3 $16) 32... Rfe8 33. f4 {White
threatens to win material: f4xg5} (33. Rf3 Rcd8 34. Ne5 Rf8 $11) 33... Qh6 (
33... Qxf4 34. Qe2 $15 (34. Rxe7 $4 {Taking that pawn is naive} Rxe7 35. Qxe7
Re8 $19)) 34. Qf2 g5 $4 (34... e6 $142 $11 {was much better}) 35. Nf5 $18 Qg6
36. Nxe7+ Rxe7 37. Rxe7 gxf4+ (37... Re8 {is not much help} 38. f5 Qd6 39.
Rxg7+ Kxg7 40. f6+ Kh6 41. Ne5 Rxe5 42. dxe5 Qxe5 43. f7 $18) 38. Kh2 Ne6 (
38... Qg3+ {praying for a miracle} 39. Qxg3 fxg3+ 40. Kxg3 b5 $18) 39. Rg1 Qh6
40. Qg2 Ng5 41. Qxg5 Qxg5 (41... Kh8 {doesn't get the cat off the tree} 42.
Qxg7+ Qxg7 43. Rgxg7 f3 44. Nf6 f2 45. Rh7#) 42. Rxg5 Kh8 (42... Rc6 {is not
the saving move} 43. Rgxg7+ Kh8 44. Rh7+ Kg8 45. Reg7#) 43. Rgxg7 Rc6 (43...
Re8 {a fruitless try to alter the course of the game} 44. Nf6 Rxe7 45. Rg8#)
44. Rh7+ Kg8 45. Reg7# 1-0

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.13"]
[Round "4.1"]
[White "Furuse, Mizuki"]
[Black "Nishimori, Toshiyuki"]
[Result "1/2-1/2"]
[ECO "A29"]
[WhiteElo "1584"]
[BlackElo "1699"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "79"]
[EventDate "2025.10.12"]

{A29: English Opening: Four Knights Variation with 4 g3} 1. Nf3 Nc6 2. g3 Nf6
3. Bg2 e5 4. c4 Bc5 5. Nc3 h6 6. d3 d6 7. O-O O-O 8. a3 a6 9. b4 Ba7 10. Bd2 (
10. Bb2 Bg4 (10... Ne7 11. d4 Ng6 12. dxe5 dxe5 13. c5 Bf5 14. Nd2 Qc8 15. e4
Bh3 16. Nc4 Bxg2 17. Kxg2 Qe6 18. Ne3 c6 19. Qe2 b6 20. cxb6 Bxb6 21. Na4 Bxe3
22. Qxe3 a5 23. Nc5 Qe7 24. Bc3 axb4 25. Bxb4 {Gabuzyan,H (2578)-Soltanici,R 
(2396) Golden Sands 2015 1-0 (63)}) 11. h3 Be6 12. Kh2 Rb8 13. Nd2 Qd7 14. Nd5
Ne8 15. Qa4 Nd4 16. Qxd7 Bxd7 17. e3 Ne6 18. Ne7+ Kh7 19. c5 dxc5 20. Nc4 Ba4
21. Be4+ Kh8 22. Bxe5 Nf6 23. Bf5 Rfe8 24. Bxf6 gxf6 {Timman,J (2620)-Karpov,A
(2760) NED/INA 1993 1/2-1/2 (55)}) 10... Rb8 $146 (10... Be6 11. Qc1 Ne7 12.
Be3 Ng6 13. Bxa7 Rxa7 14. Qe3 Ra8 15. Rac1 Ng4 16. Qd2 f5 17. e3 Qd7 18. Ne1 c6
19. f4 d5 20. cxd5 cxd5 21. d4 e4 22. Nc2 Ne7 23. Na1 Nc8 24. h3 Nf6 25. Nb3 {
Joshi,G (2280)-Adhiban,B (2421) Mumbai 2008 0-1 (52)}) 11. Rc1 Be6 12. Qc2 Re8
13. Qb1 Qc8 14. a4 Nd4 15. Rfe1 Bh3 16. Nxd4 exd4 17. Nd5 Nxd5 18. Bxd5 c6 19.
Bg2 (19. Bf3 Ra8 $11) 19... Bxg2 20. Kxg2 {White king safety dropped} Qf5 21.
e3 dxe3 22. Bxe3 Bxe3 23. Rxe3 Rxe3 24. fxe3 Re8 {Black threatens to win
material: Re8xe3} 25. Re1 Qg5 26. Qc1 d5 27. c5 {White gets more space} (27. e4
Qe5 $15) 27... Re6 $17 28. d4 Re4 (28... h5 29. b5 $17) 29. Qd2 h5 30. Qf2 (30.
b5 axb5 31. axb5 g6 $15) 30... f6 (30... h4 31. Rf1 Qe7 32. Re1 $15) 31. Qf3 f5
(31... h4 32. b5 $15) 32. Re2 g6 33. Re1 Kg7 34. Kf2 Qf6 35. Re2 Qg5 36. Re1 h4
37. Rh1 h3 38. Re1 Qd8 39. a5 {White wins space} Qf6 40. Rd1 1/2-1/2

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.13"]
[Round "4.3"]
[White "Nakamura, Mitsuru"]
[Black "Shishido, Kenta"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "1579"]
[BlackElo "1483"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "106"]
[EventDate "2025.10.12"]

{[%mdl 8192] E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5
a3 and 4 Nc3 Bb7} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Bg5 Bb7 5. e3 d6 $146 {
Covers e5} (5... h6 6. Bh4 Bb4+ (6... Be7 7. Bd3 c5 8. O-O O-O 9. Nc3 cxd4 10.
Nxd4 Nc6 11. Nxc6 Bxc6 12. Qe2 Ne4 13. Bxe4 Bxh4 14. Rfd1 Bxe4 15. Nxe4 Qc7 16.
Rd2 Qc6 17. Nd6 Be7 18. Rad1 a6 19. b3 Ra7 20. g3 Rc7 21. a4 {Bobotsov,M (2460)
-Liebert,H (2485) Albena 1973 1/2-1/2 (32)}) 7. Nbd2 (7. Nfd2 Be7 8. Nc3 c5 9.
dxc5 bxc5 10. Be2 (10. Nf3 d6 11. Be2 g5 12. Bg3 g4 13. Nd2 Bxg2 14. Rg1 Bc6
15. Bxg4 Nxg4 16. Qxg4 h5 17. Qh3 h4 18. O-O-O Bf6 19. Bf4 Bxc3 20. bxc3 Qa5
21. Kb2 Nd7 22. Nb3 Qa6 23. Rxd6 Nb6 24. Rxe6+ Kd8 {Drozd,R (2280)-Panczyk,K 
(2340) Tarnow 1979 1-0}) 10... Qb6 11. O-O Nc6 12. Rb1 d6 13. f4 O-O 14. Bf3
Ng4 15. Bxg4 Bxh4 16. f5 exf5 17. Nd5 Qd8 18. Bxf5 Ne7 19. Be4 Rb8 20. Nf3 Nxd5
21. Bxd5 Bf6 {Pozin,S (2390)-Perevertkin,V (2325) Eforie Nord 1998 1/2-1/2 (32)
}) 7... g5 8. Bg3 g4 9. a3 gxf3 10. axb4 fxg2 11. Bxg2 Bxg2 12. Rg1 Bb7 13. Bh4
d6 14. e4 Nbd7 15. Qf3 Qe7 16. Rg4 e5 17. d5 O-O-O 18. Ke2 Rdg8 19. Rag1 Rxg4
20. Rxg4 {Tarrasch,S-Bogoljubow,E Gothenburg 1920 1-0}) 6. Nbd2 Be7 7. Bd3 O-O
8. O-O Nbd7 9. h3 {Secures g4} c5 10. Qc2 Rc8 11. Bxf6 (11. Bf4 h6 $11) 11...
Nxf6 $15 12. dxc5 Rxc5 ({Instead of} 12... dxc5 13. e4 e5 14. Nxe5 $11) 13. b4
Rc7 14. Qb3 Qa8 15. Rfe1 (15. Rac1 Rfc8 $15) 15... Ne4 (15... d5 $5 $17) 16.
Bxe4 Bxe4 17. Nxe4 Qxe4 18. Rac1 Rfc8 19. Nd2 {White threatens to win material:
Nd2xe4} Qf5 20. a3 Bh4 (20... d5 21. e4 Qf4 22. Qd3 dxc4 23. Rxc4 $15 (23. Nxc4
$4 b5 $19)) 21. Re2 (21. Nf3 Bf6 $11) 21... Qh5 {Black threatens to win
material: Qh5xe2} (21... b5 22. e4 Qe5 23. Qd3 $15) 22. Rce1 (22. Nf3 $142 $5
$11 {looks like a viable alternative}) 22... b5 $17 23. c5 (23. cxb5 Qxb5 24.
a4 Qb6 $17) 23... dxc5 24. bxc5 Rxc5 25. Ne4 (25. a4 a5 $17) 25... Rc1 $19 26.
Qd3 Rxe1+ 27. Rxe1 Rd8 28. Qc2 Be7 (28... Qd5 29. Re2 $19) 29. Qb3 $2 (29. Qc7
$142 $5 Kf8 30. Nc3 $19) 29... Qe5 $19 30. Ng3 Rd2 31. Ne2 (31. Rb1 a6 $19)
31... Bd6 (31... g6 32. Kf1 $19) 32. f4 (32. Qc3 Rb2 33. Qxe5 Bxe5 34. Nd4 Bxd4
35. exd4 $19) 32... Qb2 33. Qxb2 Rxb2 34. Nd4 (34. Kf2 Bxa3 35. Ra1 b4 $19)
34... Bxa3 35. Ra1 Bc5 36. Rc1 Bf8 37. Rc8 g6 (37... g5 {might be the shorter
path} 38. Rb8 gxf4 39. exf4 $19) 38. Nc6 (38. Ra8 b4 39. Rxa7 e5 40. fxe5 Bh6
41. Ra8+ Kg7 $19) 38... Ra2 (38... b4 $142 {makes it even easier for Black} 39.
Ne5 Rd2 40. Kh2 $19) 39. Nb4 $2 (39. Ne5 Rd2 40. Rc7 $19) 39... Ra1+ 40. Kf2
Kg7 (40... a5 {and Black can already relax} 41. Nd3 a4 42. Ne5 Ra2+ 43. Kf3 $19
) 41. Nd3 a5 42. Ne5 Be7 (42... Bd6 $142 {and Black wins} 43. Nd7 a4 $19) 43.
Rc7 $2 (43. Rb8 $142 Ra2+ 44. Kf3 $17) 43... Kf6 $4 {lets it slip away} (43...
Bd6 $142 {and Black could have gained the advantage} 44. Rxf7+ Kg8 $19) 44.
Ng4+ $16 Kg7 45. Rxe7 h5 $2 (45... a4 $142 46. Rb7 Rb1 $18) 46. Ne5 Ra2+ (46...
a4 47. Rxf7+ Kg8 $18) 47. Kf3 Kg8 48. Rb7 (48. Nxf7 {seems even better} a4 49.
Ne5 a3 50. Rxe6 b4 51. Rxg6+ Kf8 $18) 48... b4 (48... f6 {does not help much}
49. Nxg6 a4 50. Kg3 $18) 49. Nc6 (49. Nxf7 {keeps an even firmer grip} b3 50.
Ng5 a4 $18) 49... Rb2 $2 (49... Ra1 50. Ke4 Ra2 $18) 50. Nxa5 Rb1 51. Nc6 b3
52. Nb4 (52. Ne5 $142 $18 {and White has it in the bag}) 52... b2 $19 53. Rb8+
Kg7 (53... Kg7 54. Nd3 Rf1+ 55. Ke2 b1=Q 56. Rxb1 Rxb1 $19) 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.13"]
[Round "4.4"]
[White "Uematsu, Maya"]
[Black "Yoshii, Yukihiko"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1269"]
[BlackElo "1753"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "96"]
[EventDate "2025.10.12"]

{[%mdl 8192] D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6
3 Bf4} 1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5 4. Nbd2 e6 5. e3 Be7 6. Be2 h6 7. h3 Nbd7
8. O-O O-O (8... Ne4 9. Nxe4 Bxe4 10. Nd2 Bh7 11. c4 c6 12. Qb3 Qb6 13. cxd5
exd5 14. Bg4 Nf6 15. Be2 O-O 16. Bd3 Rfe8 17. Bxh7+ Nxh7 18. Rac1 Bg5 19. Be5
Re6 20. Rc3 Be7 21. Nf3 Nf8 22. Qc2 a5 23. Bf4 {Pinnel,P (2215)-Janovsky,S 
(2430) Dortmund 1992 1/2-1/2}) 9. Rc1 $146 (9. Ne5 Nxe5 10. Bxe5 Nd7 11. Bh2 c5
12. c3 a6 13. Nf3 h5 14. Bd3 Bxd3 15. Qxd3 f5 16. dxc5 Nxc5 17. Qe2 Qe8 18. Ne5
Rc8 19. Nd3 Na4 20. Be5 Bf6 21. f3 Qe7 22. Bxf6 Qxf6 23. e4 d4 {Deak,Z (2205)
-Csomos,R (2213) Hungary 2003 0-1 (50)}) (9. c4 Ne4 10. Qb3 dxc4 11. Nxc4 b6
12. Rfd1 Nd6 13. Nce5 Be4 14. Rac1 Bf6 15. Nc6 Qe8 16. Nd2 Bd5 17. Qa3 a5 18.
Bxd6 cxd6 19. Qxd6 Nb8 20. Bb5 Nxc6 21. Bxc6 Rd8 22. Qxd5 Rxd5 23. Bxe8 Rxe8 {
Gemy Vargas,J (2406)-Sztokbant,B (2237) Buenos Aires 2015 1-0 (47)}) 9... Rc8
10. c3 {Controls b4} c5 11. Qb3 {White threatens to win material: Qb3xb7} Nb6 {
[%cal Yc5c4] Black plans c4} 12. Ne5 c4 {Black gains space} 13. Qd1 Nbd7 14.
Nxd7 Qxd7 15. b3 (15. Be5 Qc6 $15) 15... b5 16. Re1 (16. b4 $17) 16... Bd6 (
16... Ba3 $142 $5 $17) 17. Bxd6 $11 Qxd6 18. Bf3 Qa3 {Black threatens to win
material: Qa3xa2} 19. Ra1 $2 (19. e4 dxe4 20. Bxe4 Nxe4 21. Nxe4 Rfd8 $15)
19... Bd3 (19... b4 20. e4 Bxe4 21. Bxe4 bxc3 $17 (21... Nxe4 $143 22. Nxe4
dxe4 23. cxb4 $17) (21... dxe4 $143 22. Nxc4 Qa6 23. cxb4 $16)) 20. Qc1 $15 {
White threatens to win material: Qc1xa3} Qd6 21. e4 dxe4 22. Nxe4 (22. Bxe4 Qc7
$11) 22... Nxe4 (22... Bxe4 23. Bxe4 b4 24. cxb4 Qxd4 25. Qe3 $17) 23. Bxe4 $15
Bxe4 24. Rxe4 Qc6 {Black threatens to win material: Qc6xe4} (24... b4 25. Rg4
Kh7 26. cxb4 $15) 25. Qe3 (25. Rg4 f5 26. Rg6 cxb3 27. axb3 Qxc3 28. Qxc3 Rxc3
29. Rxe6 Ra8 $11) 25... cxb3 26. axb3 Qxc3 27. Rxa7 Rc7 28. Rxc7 Qxc7 29. Re5 {
White threatens to win material: Re5xb5} Ra8 30. g3 (30. Qg3 $5 $11) 30... Ra1+
31. Kh2 Qc6 {Black has a mate threat} (31... Qc2 32. g4 $15 (32. Rxb5 {is not
to be advocated because of the following mating combination} Qb1 33. Rb8+ Kh7
34. Qd3+ Qxd3 35. Rh8+ Kxh8 36. h4 Qf3 37. d5 Rh1#)) 32. d5 $11 {White
threatens to win material: d5xc6. White forks: c6+e6} Qc2 (32... exd5 $142 $5 {
would allow Black to play on} 33. Qf3 Ra2 $11) 33. dxe6 $16 fxe6 34. Rxe6 (34.
Rxb5 $4 {That pawn is poisoned} Qc6 35. g4 Qxb5 36. Qxe6+ Kh7 37. Qe4+ Kh8 $19)
34... Ra8 (34... Qb1 $5 35. Re8+ Kh7 36. Qe4+ Qxe4 37. Rxe4 Ra3 $16) 35. Re8+
Rxe8 36. Qxe8+ Kh7 37. Qe3 Qb1 38. Kg2 b4 39. f4 (39. Qf3 Qg6 $16) 39... Qb2+
40. Kf3 Kg6 $2 (40... Qa1 $142 41. g4 Qh1+ 42. Kg3 Qc6 $16) 41. Qe4+ Kf6 42.
Qxb4 Qc2 $4 {an oversight. But Black was lost anyway.} (42... Qb1 43. Qd6+ Kf7
$18) 43. Qd4+ Kf7 44. b4 (44. Qc4+ $142 {nails it down} Qxc4 45. bxc4 $18)
44... Qc6+ (44... Qb3+ 45. Kg4 $18) 45. Qe4 Qc3+ 46. Kg4 g6 (46... Qb3 $18) 47.
b5 (47. Qd5+ $142 {and White can celebrate victory} Kf6 48. Qe5+ Qxe5 49. fxe5+
Kxe5 50. h4 $18) 47... h5+ $11 48. Kh4 $4 {makes life more difficult} (48. Kg5
$142 {was necessary} Qf6+ 49. Kh6 Qg7+ 50. Kg5 Qf6+ 51. Kh6 Qg7+ 52. Kg5 Qf6+
$11) 48... Qf6# 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.13"]
[Round "4.5"]
[White "Kaga, Kazuyuki"]
[Black "Denta, Seiichi"]
[Result "1-0"]
[ECO "C25"]
[WhiteElo "1481"]
[BlackElo "1376"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "51"]
[EventDate "2025.10.12"]

{[%mdl 8192] C25: Vienna Game: Alternatives to 2...Nf6} 1. e4 e5 2. Nc3 Nc6 3.
Bc4 Bc5 4. Qg4 g6 5. Qf3 Nf6 6. d3 $146 (6. Nge2 d6 7. h3 (7. d3 Bg4 8. Qg3 Be6
9. Bg5 Nh5 10. Qh4 Qd7 11. Ng3 Nf4 12. Bxf4 exf4 13. Qxf4 Bxc4 14. dxc4 O-O-O
15. O-O-O Bd4 16. Nge2 Bg7 17. c5 Qe6 18. cxd6 cxd6 19. Kb1 Kb8 20. Rd5 Nb4 21.
Rb5 Nc6 {Watson,W (2555)-Murshed,N (2505) London 1992 1-0 (37)}) 7... h6 8. d3
Qe7 9. g4 (9. Bd2 a6 10. O-O-O Bd7 11. g4 g5 12. Qg3 O-O-O 13. f3 Nd4 14. Nxd4
Bxd4 15. h4 Bxc3 16. bxc3 Rhg8 17. hxg5 hxg5 18. Qf2 Kb8 19. d4 d5 20. exd5 e4
21. Rde1 Qa3+ 22. Kb1 exf3 23. Qxf3 Nxg4 {Nolan,G (2175)-Bathie,N (2260)
Edinburgh 2000 1/2-1/2 (37)}) 9... Be6 10. Bxe6 fxe6 11. Bxh6 Rxh6 12. g5 Rh7
13. Qxf6 Qxf6 14. gxf6 Rf7 15. O-O Rxf6 16. Na4 Bb6 17. a3 Ke7 {1/2-1/2 (17)
Koziak,V (2480)-Chojnacki,K (2400) Police 2015}) (6. Nd5 Nxd5 7. Bxd5 O-O 8. c3
Ne7 9. Bb3 Kg7 10. g4 Ng8 11. h4 d6 12. Ne2 Be6 13. d4 Bxb3 14. axb3 exd4 15.
cxd4 Bb4+ 16. Kf1 Qf6 17. Bf4 Qe6 18. h5 Rfe8 19. hxg6 hxg6 20. Ng3 Kf8 {
Roth,P (2300)-Kargl,K (2200) Austria 1979 1-0}) (6. Nge2 $142 $11) 6... d6 $4 {
gives the opponent counterplay} (6... Nd4 $142 {was much better} 7. Qd1 c6 $11)
7. Bg5 $18 Rg8 (7... Nd4 {cannot undo what has already been done} 8. Qxf6 Qxf6
9. Bxf6 $18) 8. Bxf6 (8. Nd5 {keeps an even firmer grip} Nxd5 9. Bxd8 Nd4 $18)
8... Qd7 (8... Nd4 {does not improve anything} 9. Bxd8 Nxf3+ 10. Nxf3 (10. gxf3
$143 Kxd8 11. Nge2 c6 $18) 10... Kxd8 11. Na4 Bb4+ 12. c3 $18) 9. Nge2 Bd4 (
9... Qg4 {the only chance to get some counterplay} 10. Qxg4 Bxg4 $18) 10. Nd5
Bxb2 (10... Rf8 {is not much help} 11. O-O-O $18) 11. Rb1 (11. Bg5 {makes it
even easier for White} h6 12. Nf6+ Kd8 13. Nxd7+ hxg5 14. Qxf7 Ne7 $18) 11...
Nd4 (11... Rf8 {does not save the day} 12. Rxb2 Na5 13. Bb5 $18) 12. Nxd4 (12.
Rxb2 $6 {is impossible} Nxf3+ 13. gxf3 c6 $16) 12... Bxd4 13. Bg5 Bc3+ 14. Nxc3
(14. Ke2 Kf8 15. Bh6+ Ke8 16. Nf6+ Kd8 17. Nxd7 f5 18. Bxg8 c6 19. exf5 e4 20.
dxe4 Bd4 21. fxg6 Kc7 $18) 14... c6 15. O-O (15. Qf6 Rf8 16. Nb5 h6 17. Nxd6+
Qxd6 18. Qxd6 hxg5 19. h4 g4 20. h5 g5 21. h6 a5 22. h7 Rh8 23. Qxe5+ Kd7 24.
Bxf7 b5 25. Rh6 Ba6 26. Be6+ Ke7 27. Qg7+ Ke8 28. Qd7+ Kf8 29. Rf6#) 15... Rh8
16. Rfd1 (16. Nd5 b5 17. Nf6+ Kd8 18. Nxd7+ Kc7 19. Qxf7 Bxd7 20. Rxb5 Rhb8 21.
Rxb8 Rxb8 22. Be6 h5 23. Qxd7+ Kb6 24. Rb1+ Ka6 25. Rxb8 d5 26. Qxc6+ Ka5 27.
Bd2#) 16... h6 17. Bf6 Rf8 18. d4 Qg4 19. Qxg4 Bxg4 20. Rxb7 Bd7 21. dxe5 d5
22. exd5 Rg8 23. Rdb1 Bc8 24. Re7+ Kf8 25. dxc6 Ba6 (25... Rg7 {is not the
saving move} 26. Bxg7+ Kxe7 27. Nd5+ Kd8 28. Rb8 Rxb8 29. c7+ Ke8 30. Nf6+ Ke7
31. cxb8=Q Kd8 32. Qd6+ Bd7 33. Qxd7#) 26. Bxa6 (26. Bxa6 Rg7 27. c7 Kg8 28.
Rb8+ Kh7 29. Ree8 Rg8 30. Rxg8 Rxb8 31. cxb8=Q h5 32. Rh8#) (26. Rxf7+ Ke8 27.
Ne4 Rd8 28. Rd7 Rxd7 29. Rb8+ Bc8 30. Rxc8+ Rd8 31. Rxd8#) 1-0

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.13"]
[Round "4.6"]
[White "Ito, Katsuhide"]
[Black "Yajima, Machiko"]
[Result "0-1"]
[ECO "C84"]
[WhiteElo "1307"]
[BlackElo "1327"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "88"]
[EventDate "2025.10.12"]

{[%mdl 8192] C84: Closed Ruy Lopez: Unusual White 6th moves} 1. e4 e5 2. Nf3
Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Be7 6. O-O Bb7 7. d3 Nf6 8. a3 O-O 9. Re1 (9.
Nc3 d6 10. h3 Nd7 11. Nd5 Nc5 12. Ba2 Ne6 13. Be3 Qd7 14. Nxe7+ Nxe7 15. Re1
Kh8 16. d4 exd4 17. Bxd4 Nxd4 18. Nxd4 Rae8 19. Qg4 Qxg4 20. hxg4 c5 21. Nf3
Ng6 22. Ng5 Re7 23. Rad1 h6 {Salgado Lopez,I (2622)-Bartel,M (2664) Wroclaw
2014 1-0 (46)}) 9... a5 $146 (9... d6 10. Nbd2 (10. Nc3 Na5 11. Ba2 c5 12. Ne2
Nc6 13. Ng3 Qc7 14. c3 Rad8 15. Nf5 d5 16. Qe2 dxe4 17. dxe4 c4 18. Nxe7+ Nxe7
19. Bb1 Ng6 20. Bg5 Rd7 21. Bc2 h6 22. Bxh6 gxh6 23. Qe3 Kh7 24. a4 Nf4 {
Swathi,G (2320)-Yildiz,B (2219) Beijing 2008 1-0 (35)}) 10... h6 (10... Bc8 11.
Nf1 Be6 12. c3 Re8 13. Ng3 Bf8 14. d4 h6 15. h3 Na5 16. Qc2 Nc4 17. d5 Nb6 18.
c4 Rc8 19. Qe2 c6 20. Bd2 Rc7 21. Ba5 Nfd7 22. a4 bxa4 23. Rxa4 Qb8 24. Raa1
Rec8 25. Nd2 {Sutovsky,E (2624)-Stefansson,H (2585) Reykjavik 2006 0-1}) 11.
Nf1 Re8 12. Ne3 Bf8 13. Nf5 Bc8 14. N3h4 Be6 15. c3 g5 16. Nf3 Bxf5 17. exf5
Qd7 18. Nxg5 hxg5 19. Bxg5 Qxf5 20. Bxf6 Qxf6 21. Bd5 Ne7 22. Bxa8 Rxa8 23. a4
Rb8 24. axb5 {Katai,D (2246)-Ivan,A (2293) Hungary 2008 1-0 (33)}) (9... Bc5
10. Nc3 $11) 10. Nc3 $14 {White threatens to win material: Nc3xb5} Ba6 11. Bg5
b4 {This push gains space} (11... h6 12. Bh4 $14) 12. Nd5 $14 Nxd5 13. Bxe7 $4
{gives the opponent new chances} (13. exd5 $142 Bxg5 14. dxc6 $16) 13... Ndxe7
$19 ({Weaker is} 13... Ncxe7 14. exd5 Bb7 15. axb4 axb4 16. Nxe5 $14) (13...
Qxe7 $2 14. exd5 (14. Bxd5 $6 Bb7 $14) 14... Nd8 15. Nxe5 $18) 14. d4 Ng6 (
14... Nxd4 {and Black can already relax} 15. Nxd4 exd4 16. Qxd4 $19) 15. dxe5 (
15. d5 Nce7 $19) 15... Ncxe5 16. Qd5 (16. Nxe5 {hoping against hope} Nxe5 17.
f4 $19) 16... Nxf3+ 17. gxf3 c6 18. Qd6 Bc8 (18... Re8 {keeps an even firmer
grip} 19. Kg2 $19) 19. Rad1 (19. axb4 {does not solve anything} Bb7 $19) 19...
Qg5+ 20. Qg3 Qxg3+ (20... Qf6 {might be the shorter path} 21. a4 $19) 21. fxg3
(21. hxg3 {doesn't get the cat off the tree} a4 22. Ba2 bxa3 23. bxa3 Ne5 $19)
21... Ne5 22. Kg2 h5 (22... bxa3 $142 $5 {keeps an even firmer grip} 23. bxa3
a4 24. Ba2 $19) 23. f4 Ng4 (23... bxa3 {makes it even easier for Black} 24.
bxa3 a4 25. Ba2 $19) 24. h3 Nf6 25. e5 Nh7 (25... bxa3 {and Black can already
relax} 26. bxa3 Nd5 27. Kf2 $19) 26. f5 (26. axb4 axb4 27. g4 hxg4 28. hxg4 Re8
$19) 26... c5 (26... bxa3 {might be the shorter path} 27. bxa3 a4 28. Bc4 $19)
27. Rd6 Bb7+ 28. Bd5 Bxd5+ 29. Rxd5 c4 30. Rxd7 Rad8 31. Red1 Rxd7 32. Rxd7 Ng5
$4 {releasing the pressure on the opponent} (32... c3 {seems even better} 33.
bxc3 bxa3 34. Ra7 $19) 33. Rd4 $2 (33. axb4 $5 axb4 34. h4 $17) 33... Re8 (
33... c3 $5 34. bxc3 bxa3 35. h4 $19) 34. h4 Nh7 35. Rd5 bxa3 36. bxa3 a4 37.
Kf3 g6 (37... Nf8 38. g4 hxg4+ 39. Kxg4 $19) 38. f6 (38. fxg6 $5 fxg6 39. Rc5
$17) 38... Nf8 (38... g5 39. Rc5 $19) 39. g4 (39. Ke3 Rc8 $19) 39... c3 40. Kf4
$2 (40. gxh5 gxh5 41. Ra5 Ng6 $19) 40... hxg4 (40... Ne6+ $142 {seems even
better} 41. Kf3 $19) 41. Kxg4 Rc8 42. Ra5 Rc4+ 43. Kg5 (43. Kf3 $19) 43... Ne6+
44. Kh6 Rxh4# 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.13"]
[Round "5.1"]
[White "Yoshii, Yukihiko"]
[Black "Nishimori, Toshiyuki"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "1753"]
[BlackElo "1699"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "58"]
[EventDate "2025.10.12"]

{[%mdl 8192] A36: Symmetrical English vs ...g6: 4 Bg2 Bg7} 1. c4 Nf6 2. Nc3 g6
3. g3 Bg7 4. Bg2 c5 5. e3 d6 6. Nge2 Nc6 7. d4 cxd4 (7... Bd7 8. O-O Qc8 9. b3
Bh3 10. Bb2 Bxg2 11. Kxg2 Qf5 12. Qb1 Qxb1 13. Raxb1 cxd4 14. Nxd4 Rc8 15. Rfd1
O-O 16. e4 Nxd4 17. Rxd4 Rfe8 18. Rd2 a6 19. a4 Kf8 20. f4 Nd7 21. Nd5 Bxb2 22.
Rbxb2 {Anastasian,A (2568)-Malakhov,V (2664) Moscow 2005 1/2-1/2 (59)}) 8. exd4
(8. Nxd4 Bd7 9. O-O Qc8 10. b3 h5 11. h4 Bh3 12. Bb2 Bxg2 13. Kxg2 Ne5 14. f3
O-O 15. Rc1 Qd7 16. Nde2 Rfd8 17. Nf4 Rac8 18. Qd4 Nxc4 19. bxc4 e5 20. Qd3
exf4 21. gxf4 Ne8 22. Ba3 Rc6 {Alvarez Pedraza,A (2476)-Rivera,I (2192) Bogota
2014 1-0 (52)}) 8... Rb8 $146 {White has an active position} (8... O-O 9. h3
Bd7 10. O-O Na5 11. b3 a6 12. Be3 Rb8 13. Rc1 b5 14. c5 b4 15. Na4 d5 16. Nb6
Bb5 17. Bf4 Rb7 18. Be5 e6 19. Re1 Nc6 20. Nf4 Nxe5 21. dxe5 Nd7 22. Nxd7 Qxd7
23. Qd4 {Reiss,T (2430)-Heinzel,O (2402) Augsburg 2005 1/2-1/2 (75)}) 9. a3 {
Black has a cramped position} O-O 10. O-O e5 11. d5 {White threatens to win
material: d5xc6} Ne7 12. h3 {Prevents intrusion on g4} a6 {Consolidates b5} 13.
b4 b5 (13... b6 14. Re1 $11) 14. Qb3 (14. c5 h5 $16) 14... Bd7 (14... bxc4 $142
$5 {would keep Black alive} 15. Qxc4 Bb7 $15) 15. c5 $14 dxc5 16. bxc5 {
White has new passed pawns: c5+d5} Qc8 17. Be3 (17. Bg5 $5 Bxh3 18. Bxf6 Bxf6
19. Bxh3 Qxh3 20. Ne4 $14) 17... Bxh3 $11 18. Rad1 Bxg2 19. Kxg2 Ng4 (19... a5
20. d6 Nf5 21. Nd5 $11) 20. Ne4 $14 Nxe3+ 21. fxe3 (21. Qxe3 f5 22. d6 fxe4 23.
dxe7 Re8 $14) 21... Qg4 $11 {Black threatens to win material: Qg4xe2. Black
forks: e2+e4} 22. N2c3 h5 23. Qc2 $4 {with this move White loses his initiative
} (23. Nf2 Qc4 24. Qxc4 bxc4 25. d6 $16) 23... Nf5 $17 24. Rfe1 $2 (24. Kf2
$142 $17) 24... Nh4+ $19 25. Kf2 (25. Kh1 {is one last hope} Nf3 26. Kg2 Nxe1+
27. Rxe1 $19) 25... f5 26. Nd6 (26. Ng5 {is no salvation} f4 27. Nce4 fxg3+ 28.
Kg1 Rf2 $19) 26... Qf3+ (26... f4 27. exf4 (27. gxh4 $4 {is refuted by the
following mate in 4} fxe3+ 28. Kxe3 Bh6+ 29. Kd3 Qd4+ 30. Ke2 Rf2#) 27... Rxf4+
28. gxf4 Qg2+ 29. Ke3 Qxc2 30. Ne2 Qxc5+ 31. Kd2 exf4 32. Nxf4 Qc3+ 33. Ke2
Qf3+ 34. Kd2 Qxf4+ 35. Re3 Qxd6 36. Rb1 Qxd5+ 37. Rd3 Bh6+ 38. Kd1 Qxd3+ 39.
Ke1 Rf8 40. Rxb5 Qd2#) 27. Kg1 Qxg3+ 28. Kh1 Nf3 29. Qg2 (29. Re2 {no good,
but what else?} b4 30. Na4 $19) 29... Qh4+ (29... Qh4+ 30. Qh3 Qxh3#) 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.13"]
[Round "5.2"]
[White "Shishido, Kenta"]
[Black "Sugimoto, Koichi"]
[Result "0-1"]
[ECO "B70"]
[WhiteElo "1483"]
[BlackElo "1866"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "78"]
[EventDate "2025.10.12"]

{[%mdl 8192] B70: Sicilian Dragon: 6 g3 and 6 Be2 (without a later Be3)} 1. e4
c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bb5+ Nbd7 $146 (6... Bd7 7.
Bxd7+ (7. g4 Bxb5 8. Ndxb5 Bg7 (8... a6 9. g5 Nfd7 10. Nd4 Bg7 11. Be3 Nc6 12.
f4 Nb6 13. Nxc6 bxc6 14. Qd3 Qc7 15. O-O-O Rb8 16. f5 Qb7 17. b3 Rd8 18. Bd4
Bxd4 19. Qxd4 O-O 20. h4 Nd7 21. h5 Ne5 22. Rh3 Kg7 23. hxg6 {Brochet,P (2388)
-Maisuradze,N (2266) Evry 2005 1-0}) 9. g5 Nh5 10. Be3 Nc6 11. Nd4 O-O 12. Nf5
Bxc3+ 13. bxc3 gxf5 14. Qxh5 Qa5 15. O-O fxe4 16. Kh1 Qxc3 17. Rg1 Qe5 18. Rad1
Qf5 19. Rg3 Ne5 20. Bd4 Nf3 21. Bf6 Rfe8 {Brooks,M (2463)-Kudrin,S (2563)
Stillwater 2009 1/2-1/2}) (7. a4 Bg7 8. O-O O-O 9. Bg5 Nc6 10. Nde2 Re8 11. Qd2
Rc8 12. Bxc6 bxc6 13. Rad1 Be6 14. b3 Qa5 15. Bxf6 exf6 16. Nd4 f5 17. exf5
Bxf5 18. Nxf5 Qxf5 19. Qd3 Qe5 20. Nb1 d5 21. Nd2 Qc3 {Campos Olaya,I (2166)
-Chalmeta Ugas,R (2240) Sant Boi 2015 0-1 (34)}) (7. Qe2 Bg7 8. Be3 O-O 9.
O-O-O Nc6 10. Bxc6 bxc6 11. e5 Nd5 12. Nxd5 cxd5 13. exd6 e5 14. Nb3 d4 15. Bd2
Qb6 16. Qc4 Rfc8 17. Qd5 Be6 18. Qf3 e4 19. Qg3 d3 20. c3 Bxb3 21. d7 Rd8 {
Vargas Maliqueo,I (2205)-Valenzuela Fuentealba,L (2434) Santiago de Chile 2007
0-1}) 7... Nbxd7 8. Qe2 Bg7 9. Bd2 Rc8 10. O-O-O Nb6 11. f4 Nc4 12. Nb3 Nxd2
13. Rxd2 Nd7 14. e5 O-O 15. Rd3 Bh6 16. exd6 Bxf4+ 17. Kb1 exd6 18. Rhd1 Nb6
19. Nb5 Qe8 20. Qxe8 Rcxe8 21. g3 {Karklins,A (2376)-Shahade,J (2257)
Philadelphia 2001 0-1 (51)}) 7. O-O Bg7 8. Re1 {Black has a cramped position.
Black's piece can't move: c8} O-O 9. b3 (9. Bg5 a6 10. Be2 Re8 $11) 9... a6 10.
Bf1 Qc7 11. Bb2 b5 12. Nd5 Nxd5 13. exd5 Ne5 (13... Nb6 14. c4 bxc4 15. Rc1 $11
) 14. h3 {Controls g4} (14. f4 Qc5 15. a4 $11 (15. fxe5 $143 dxe5 16. a4 exd4
$17)) 14... Re8 $11 15. g3 Bb7 {Black threatens to win material: Bb7xd5} 16.
Bg2 Qc5 17. Ne2 (17. Re3 $5 $11 {has some apparent merit}) 17... Nf3+ $17 18.
Bxf3 Bxb2 19. Rb1 Be5 20. Kg2 Rac8 (20... b4 21. Nf4 Qa5 22. Re4 $17) 21. c4
$15 Rc7 (21... bxc4 22. bxc4 Ba8 23. Rc1 $15) 22. Rc1 b4 23. Rc2 e6 24. Rd2 (
24. Qd3 Rf8 $11) 24... a5 (24... Rce7 25. Nd4 exd5 26. Rde2 $15) 25. Rd3 $11 a4
26. Kf1 (26. dxe6 Bxf3+ 27. Rxf3 fxe6 $11) 26... a3 (26... Rce7 $5 27. dxe6
Bxf3 28. Rxf3 axb3 29. axb3 fxe6 $11) 27. dxe6 $11 fxe6 28. Bxb7 Rxb7 29. Nd4
Rf7 30. Re2 Rf6 31. Kg2 {White king safety dropped} Ref8 32. f4 (32. Qd2 Bxd4
33. Rxd4 Rf3 $11) 32... Bxd4 33. Rxd4 Qc6+ (33... e5 34. Rd5 exf4 35. Rxc5 f3+
36. Kg1 fxe2 37. Qxe2 dxc5 38. Qe3 $11) 34. Kf2 (34. Rde4 $5 $11 {is worthy of
consideration}) 34... e5 $15 {Black threatens to win material: e5xd4. Black
forks: d4+f4} 35. Rde4 exf4 36. gxf4 (36. g4 $142 $5 $15 {is interesting})
36... Rxf4+ $17 37. Rxf4 Rxf4+ 38. Ke1 $4 {simply worsens the situation} (38.
Kg3 $142 Rf5 39. Qe1 $17) 38... Qh1+ 39. Kd2 Rd4+ (39... Rd4+ 40. Ke3 Rxd1 41.
c5 Qxh3+ 42. Kf4 Rd3 43. Re8+ Kf7 44. Rf8+ Kxf8 45. Kg5 dxc5 46. Kf6 Qf5#) 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.13"]
[Round "5.3"]
[White "Furuse, Mizuki"]
[Black "Nakamura, Mitsuru"]
[Result "1-0"]
[ECO "E66"]
[WhiteElo "1584"]
[BlackElo "1579"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "73"]
[EventDate "2025.10.12"]

{[%mdl 64] E66: King's Indian: Fianchetto: 6...c5 7 0-0 Nc6 8 d5} 1. Nf3 Nf6 2.
g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c5 6. d4 d6 7. Nc3 Nc6 8. d5 Na5 9. Qd3 Rb8 (
9... e5 10. e4 Bd7 11. Rb1 Ne8 12. Bg5 f6 13. Bd2 b6 14. b3 Nb7 15. h4 a6 16.
h5 g5 17. Nh2 b5 18. Bf3 b4 19. Nd1 f5 20. exf5 Bxf5 21. Be4 Bxe4 22. Qxe4 Nf6
23. Qe2 Qe8 24. Bxg5 {Fridman,D (2594)-Ivkov,B (2433) Philadelphia 2004 1/2-1/
2 (37)}) (9... e6 10. Bg5 e5 11. Nd2 h6 12. Bxf6 Bxf6 13. e4 Bg7 14. b3 Bd7 15.
Rab1 b6 16. Ne2 Qe7 17. f4 exf4 18. Nxf4 Rae8 19. Rbe1 Nb7 20. Nf3 Bg4 21. h3
Bxf3 22. Qxf3 h5 23. h4 Be5 24. Nh3 {Frouth,N (2199)-Kristovic,M (2297) Velika
Gorica 2015 1/2-1/2 (51)}) 10. e4 $146 (10. Ng5 a6 11. Bd2 b5 12. cxb5 axb5 13.
Nxb5 c4 14. Qe3 Rxb5 15. Qa7 Nxd5 16. a4 Nc6 17. Qa8 Rxb2 18. Qxc6 Rxd2 19.
Bxd5 Bxa1 20. Rxa1 e6 21. Nxf7 Rxf7 22. Bxc4 Bb7 23. Qb5 Qf6 24. Rf1 Qxf2+ {
Hernandez,H (2240)-Bravo,J (2170) El Bolson 2002 0-1}) (10. Rb1 a6 11. Nd2 Ng4
12. Nd1 Bd7 13. Qc2 b5 14. h3 Nf6 15. b3 bxc4 16. bxc4 Rxb1 17. Qxb1 Qb8 18.
Qd3 e6 19. dxe6 Bxe6 20. Ba3 Nd7 21. Ne3 Ne5 22. Qc2 Nac6 23. Nd5 Nd4 24. Qd1
Bxd5 {Palecek,P (2260)-Kalata,P (2255) Slovakia 2005 1-0 (43)}) 10... Bg4 {
Black's piece can't move: a5} (10... a6 11. Rb1 $11) 11. Be3 (11. Rb1 a6 $11)
11... b6 {Black has a cramped position} (11... Nd7 12. Bf4 $11) 12. Nd2 Qd7 (
12... Bd7 13. f3 $11) 13. a3 $14 {White has an active position} Bh3 14. b4 Bxg2
15. Kxg2 {White king safety dropped} Nb7 16. h3 {Covers g4} Rfe8 {Black has a
cramped position} 17. Rab1 {[%cal Yb4b5] White intends b5} e6 18. b5 {White
gains space} (18. dxe6 Qxe6 19. f4 Qd7 $14) 18... Na5 19. Rbd1 (19. Bg5 e5 $14)
19... exd5 $11 20. Nxd5 Nxd5 21. exd5 Re7 22. Bf4 Rbe8 23. h4 (23. Nf3 Re4 24.
Rc1 Bb2 $11) 23... Be5 24. Ne4 Qf5 25. Bxe5 ({Less advisable is} 25. Nxd6 Qxd3
26. Rxd3 Rd8 27. Nxf7 Kxf7 $17) 25... Qxe5 26. Rde1 Nb7 (26... Qg7 $142 $5 {
is worth consideration} 27. Re3 f5 $11) 27. Qf3 $16 f5 28. Nxc5 $1 {Discovered
attack: e4, Re1xe5} Nxc5 $2 (28... bxc5 29. Rxe5 {Discovered attack}) (28...
Nxc5 29. Rxe5 {Discovered attack}) (28... dxc5 29. Rxe5 {Overloading
Deflection Discovered attack}) 29. Rxe5 $18 Rxe5 30. Qd1 (30. h5 {keeps an
even firmer grip} Re4 31. Qc3 Kf7 $18) 30... Ne4 (30... Re2 31. h5 $1 {Decoy:
h5} g5 32. a4 $18) 31. Qc2 (31. Re1 {makes it even easier for White} h5 $18)
31... Rf8 $6 {not the bravest move} (31... Nc5 $18) 32. Re1 Rfe8 33. f3 Nc5 34.
Rxe5 Rxe5 35. Kf2 (35. h5 {seems even better} Kg7 $18) 35... Kf7 36. Qd1 Kf6 (
36... h5 37. Kg2 $18) 37. g4 1-0

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.13"]
[Round "5.4"]
[White "Yajima, Machiko"]
[Black "Kaga, Kazuyuki"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "1327"]
[BlackElo "1481"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "112"]
[EventDate "2025.10.12"]

{[%mdl 8192] A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3} 1. g3 g6 2.
Nf3 Bg7 3. Bg2 c5 4. O-O Nc6 5. c4 e6 6. d3 Nge7 7. Nc3 d5 8. Na4 $146 (8. cxd5
exd5 (8... Nxd5 9. Bg5 Nxc3 10. bxc3 Qc7 11. Qd2 e5 12. Bh6 O-O 13. Bxg7 Kxg7
14. Qe3 Qe7 15. Nd2 Bd7 16. Rab1 b6 17. Nc4 Rae8 18. Qe4 f5 19. Qd5 Rf6 20. Rb2
Rd8 21. Qf3 g5 22. a4 g4 23. Qe3 {Solomon,S (2395)-Freeman,M (2205) Melbourne
1996 1-0 (36)}) 9. Bd2 (9. Bg5 h6 10. Bxe7 Nxe7 11. d4 cxd4 12. Nxd4 O-O 13. e3
Nc6 14. Nxd5 Nxd4 15. exd4 Be6 16. Nf4 Bc4 17. Re1 Qxd4 18. Qc2 Rac8 19. Bxb7
Qxb2 20. Qxb2 Bxb2 21. Rab1 Bc3 22. Rec1 Bd2 23. Nxg6 fxg6 {Larsen,B (2590)
-Kortschnoj,V (2695) London 1980 1-0 (78)}) (9. Bf4 O-O 10. Qd2 Bf5 11. Rac1
Qd7 12. Bh6 d4 13. Ne4 b6 14. Nh4 Bh3 15. Bxh3 Qxh3 {1/2-1/2 (15) Pfleger,H 
(2520)-Penrose,J (2450) Bath 1973}) 9... h6 (9... O-O 10. Qc1 b6 11. Bh6 Bb7
12. Bxg7 Kxg7 13. a3 d4 14. Ne4 Nd5 15. Rb1 Qe7 16. Re1 Rad8 17. h4 h6 18. g4
f5 19. gxf5 Rxf5 20. Ng3 Rdf8 21. Nxf5+ Rxf5 22. e4 dxe3 23. fxe3 Ne5 24. Nxe5
{Agudelo,A (2300)-De Greif,B (2345) Bogota 1975 1-0 (31)}) 10. Rc1 O-O 11. a3
b6 12. Qa4 d4 13. Nb1 Bd7 14. Qc2 a5 15. b3 Be6 16. Be1 Nd5 17. Nfd2 Re8 18.
Nc4 b5 19. Ncd2 Rc8 20. Ne4 Bf8 21. Qb2 Qb6 22. Rc2 f5 {Vasquez,J (2270)
-Quinteros,M (2465) Sao Paulo 1972 0-1 (43)}) (8. Bg5 O-O $11) 8... b6 $11 {
Secures c5} 9. Bg5 O-O 10. Bxe7 {White forks: f8+d8} (10. Nc3 Qd7 $11) 10...
Qxe7 11. e3 {Prevents intrusion on d4} (11. Nc3 Qd8 $15) 11... Ba6 12. Rb1 $2 (
12. Nc3 $142 $5 $15 {and White has air to breath}) 12... dxc4 $19 13. Ne1 $2 (
13. Nd2 Qd7 14. dxc4 Rad8 $19) 13... Rac8 (13... Qe8 {might be the shorter path
} 14. Nc3 Rd8 15. d4 cxd4 16. Qa4 $19) 14. Nc3 $2 (14. Bxc6 Rxc6 15. Qc2 $19)
14... cxd3 15. Qa4 Na5 16. Nb5 (16. Nf3 {hardly improves anything} c4 $19)
16... Bxb5 (16... Qe8 $142 $5 {might be the shorter path} 17. Nc3 Qxa4 18. Nxa4
$19) 17. Qxb5 c4 18. b4 (18. Nf3 $19 {doesn't change the outcome of the game})
18... d2 (18... Nb7 {and Black can already relax} 19. Qa4 Nd6 20. Rd1 $19) 19.
Nc2 $4 {but even a better move would not have saved the game} (19. bxa5 $142
dxe1=B 20. Rfxe1 $19) 19... c3 (19... Nb7 $142 $19 {secures the win}) 20. bxa5
$17 Qc5 $4 {not a good decision, because now the opponent is right back in the
game} (20... Rc5 $142 21. Qb4 Rb8 $17) 21. Qxc5 $16 Rxc5 22. axb6 axb6 23. Rxb6
Rd8 24. Rd1 Ra5 25. a3 Bf8 26. Rc6 Bxa3 $2 (26... Bg7 $142 $16) 27. Rxc3 $18
Bb2 28. Rb3 Ra2 (28... Bc1 29. Nd4 Rc5 30. Kf1 $18) 29. Bf3 (29. Kf1 {makes it
even easier for White} Bc1 30. Nb4 Ra4 $18) 29... Bf6 (29... Bc1 30. Nd4 $18)
30. Be4 Bg7 31. Bd3 (31. Na3 {seems even better} f5 32. Bb1 Rb2 33. Rxb2 Bxb2
$18) 31... e5 (31... Rxd3 32. Rxd3 Rxc2 33. R3xd2 Rxd2 34. Rxd2 g5 $18) 32.
Rxd2 (32. Nb4 $142 {makes sure everything is clear} Raa8 33. Be4 $18 (33. Rxd2
$6 {is clearly weaker} e4 $16)) 32... e4 $14 {Black threatens to win material:
e4xd3.} 33. Bc4 (33. Rd1 Rxd3 34. Rbxd3 exd3 $14) 33... Rxd2 34. Rb8+ Bf8 35.
Bxa2 Rxc2 36. Bd5 {White threatens to win material: Bd5xe4} Kg7 $2 (36... Rc7
37. Bxe4 f5 38. Bd5+ Kg7 39. Kg2 $14) 37. Bxe4 (37. Rb7 $142 $5 Rd2 38. Rxf7+
Kg8 39. Bb3 $16) 37... Rd2 38. Kg2 Bc5 39. Kf3 f5 {Black threatens to win
material: f5xe4} 40. Rb7+ Kf6 41. Bb1 g5 42. h3 h5 {[%cal Yg5g4] Black
prepares the advance g4} 43. Rh7 (43. Rb3 $142 $5 $11 {should be investigated
more closely}) 43... g4+ $15 44. hxg4 $2 (44. Kg2 Bxe3 45. Kh1 $15 (45. Rxh5 $4
{A poison bait which should not be taken} Rxf2+ 46. Kh1 Rf1+ 47. Kg2 Rg1+ 48.
Kh2 Rxb1 49. hxg4 fxg4 $19)) 44... hxg4+ $19 (44... fxg4+ $6 45. Ke4 Rxf2 46.
Rxh5 $11) 45. Kg2 Bxe3 46. Kg1 $4 {a blunder in a bad position} (46. Kh1 Rxf2
47. Bd3 $19) 46... Rxf2 47. Rh2 (47. Bxf5 {there is nothing better in the
position} Kxf5 48. Re7 $19) 47... Rb2+ 48. Kf1 (48. Rf2 {a fruitless try to
alter the course of the game} Bxf2+ 49. Kg2 Be1+ 50. Kf1 Rxb1 51. Ke2 Bxg3 52.
Kd3 Be5 53. Ke2 g3 54. Ke3 g2 55. Kf2 g1=Q+ 56. Kf3 Qh2 57. Ke3 Rb3#) 48...
Rxh2 49. Bd3 (49. Ke1 {doesn't do any good} Bf2+ 50. Ke2 Bxg3+ 51. Kd3 Be5 52.
Bc2 g3 53. Bd1 g2 54. Be2 g1=Q 55. Kc4 Rxe2 56. Kd5 Qg2+ 57. Kc5 Qb7 58. Kc4
Rd2 59. Kc5 Rc2#) 49... Bf2 50. Be2 (50. Ke2 {doesn't change anything anymore}
Bxg3+ 51. Kd1 Bf4 52. Bf1 g3 53. Ke1 Kg5 54. Bc4 g2 55. Kf2 Be5 56. Bd5 Bd4+
57. Ke2 g1=Q+ 58. Kd3 Bc5 59. Bg2 Qd4+ 60. Ke2 Rxg2+ 61. Kf3 Qe4#) 50... Bxg3
51. Bc4 Be5 52. Kg1 (52. Bd5 {cannot change what is in store for White} Kg5 53.
Bg8 g3 54. Bd5 f4 55. Bf3 Rf2+ 56. Ke1 Rxf3 57. Ke2 Rc3 58. Kd1 f3 59. Kd2 g2
60. Ke1 g1=Q+ 61. Kd2 Qc1#) 52... g3 53. Bb5 (53. Bd5 {cannot change destiny}
Bd4+ 54. Kf1 Rf2+ 55. Ke1 Bc3+ 56. Kd1 Rd2+ 57. Kc1 Rxd5 58. Kc2 g2 59. Kb3
g1=Q 60. Kxc3 Qd4+ 61. Kc2 Qc4+ 62. Kb2 Rd2+ 63. Ka3 Ra2#) 53... Bd4+ 54. Kf1
g2+ 55. Ke1 (55. Ke2 {does not win a prize} g1=Q+ 56. Kd3 Bc5 57. Kc4 Qd4+ 58.
Kb3 Rb2#) 55... g1=Q+ 56. Bf1 Qf2+ (56... Qf2+ 57. Kd1 Qxf1#) 0-1

[Event "Sapporo Autumn Chess Tournament 2025"]
[Site "Sapporo Chess Club"]
[Date "2025.10.13"]
[Round "5.5"]
[White "Denta, Seiichi"]
[Black "Ito, Katsuhide"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1376"]
[BlackElo "1307"]
[Annotator "Fritz 11 SE (30s)"]
[PlyCount "50"]
[EventDate "2025.10.12"]

{[%mdl 8192] D00: 1 d4 d5: Unusual lines} 1. d4 d5 2. Nf3 e6 3. Nc3 c5 4. dxc5
$146 (4. e3 Nc6 5. Bb5 Nf6 6. O-O Be7 7. dxc5 Bxc5 8. a3 O-O 9. b4 Be7 10. Bb2
a5 11. Bxc6 bxc6 12. Qd4 Ba6 13. Rfb1 Ne8 14. Na4 f6 15. bxa5 e5 16. Qb6 Qd6
17. Bc3 Bd8 18. Bb4 Qe6 {Haubt,G (2225)-Weise,M (2152) Germany 2007 1-0}) (4.
Bg5 Qb6 5. Qd2 cxd4 6. Nxd4 Nc6 7. Nb3 Be7 8. Bxe7 Ngxe7 9. e3 O-O 10. f4 Nf5
11. Nd1 Nb4 12. c3 Nxa2 13. Nd4 Nxd4 14. exd4 Qb3 15. Bd3 Nxc3 16. bxc3 Qb6 17.
O-O Bd7 18. Rf3 g6 {Fomina,T (2297)-Voronova,T (2276) Tallinn 1999 1-0}) (4. e4
$5 cxd4 5. Qxd4 $14) 4... Bxc5 $11 5. Be3 (5. e4 $142 $5 {should not be
overlooked} Nf6 6. Bb5+ Nc6 7. Bg5 $11) 5... Bxe3 $15 6. fxe3 Qb6 (6... Nc6 7.
Qd2 $15) 7. b3 (7. Qd4 Nf6 8. Qxb6 axb6 $11) 7... Qxe3 8. Qd3 {White threatens
to win material: Qd3xe3} Qh6 (8... Qxd3 9. exd3 Bd7 $15) 9. Ne5 $2 (9. e4 $142
$5 {is a viable option} Nf6 10. exd5 $11) 9... Nf6 $17 10. Qb5+ (10. Qd2 $5
Qxd2+ 11. Kxd2 $17) 10... Nbd7 $19 11. Nxd7 Nxd7 (11... Bxd7 12. Qb4 $19) 12.
Rd1 (12. Qb4 a5 13. Qd4 O-O $17) 12... a6 (12... O-O $142 $5 $19) 13. Qb4 $17
Qf6 (13... Nf6 $142 $17) 14. Rd4 $2 (14. e4 $142 {and White hangs on} a5 15.
Qd4 dxe4 16. Nxe4 Qxd4 17. Rxd4 $15) 14... a5 $19 15. Rf4 $4 {the final
mistake, not that it matters anymore} (15. Qa4 O-O 16. e3 $19) 15... axb4 16.
Rxf6 Nxf6 17. Nb5 (17. Na4 {doesn't improve anything} b5 18. Nc5 Rxa2 $19)
17... Rxa2 18. Nd6+ Kd7 19. Nxf7 Rf8 (19... Ne4 $142 {keeps an even firmer grip
} 20. e3 Ra1+ 21. Ke2 $19) 20. Ne5+ Kd6 21. Nd3 Ne4 22. Nf2 Nxf2 (22... Rxf2
23. e3 Ra1#) 23. Rg1 (23. e4 {doesn't get the bull off the ice} Ra1+ 24. Ke2 d4
25. e5+ Kc5 26. c4 bxc3 27. b4+ Kc4 28. Rg1 Nd3 29. g4 Rf2#) 23... Ra1+ 24. Kd2
Rd1+ 25. Ke3 Ng4# 0-1

