[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "1.1"]
[White "Hakamada, Eiji"]
[Black "Sugimoto, Koichi"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "1531"]
[BlackElo "2013"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "52"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] A29: English Opening: Four Knights Variation with 4 g3} 1. c4 e5
2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. dxc3 Re8 9.
Qc2 Qe7 10. Bf4 $146 {White threatens to win material: Bf4xc7} (10. Nh3 Ne5 (
10... h6 11. Nf4 Qe5 12. Be3 g5 13. Bd4 Nxd4 14. cxd4 Qf5 15. Nd5 Nxd5 16. cxd5
Qxd5 17. Qxc7 {1/2-1/2 (17) Adorjan,A (2580)-Garcia Martinez,S (2500) Reggio
Emilia 1984}) 11. b3 Ng6 12. Nf4 Nxf4 13. Bxf4 d6 14. h3 Bf5 15. Qd2 Bd7 16.
Rad1 Bc6 17. Qd4 h6 18. Kh2 a5 19. a3 b6 20. g4 Nd7 21. Qd2 Nc5 22. Qc2 Qe6 23.
Bg3 a4 24. b4 Nb3 {Sorokin,V (2327)-Kapengut,A (2430) Bad Zwischenahn 2008 1/
2-1/2 (36)}) (10. b3 d6 11. Nh3 Qe5 (11... Bf5 12. Nf4 Qe5 13. Be3 Ng4 14. Qd2
Nxe3 15. Qxe3 Ne7 {1/2-1/2 (15) Dumpor,A (2362)-Bosiocic,M (2384) Split 2006})
12. Rd1 Bf5 13. Be3 Bxh3 14. Bxh3 Qh5 15. Bg2 Ng4 16. h3 Nxe3 17. fxe3 Qg5 18.
Kf2 Re6 19. Bxe4 Rae8 20. Bf3 Rg6 21. g4 Qxe3+ 22. Kg2 h5 23. Qd2 hxg4 24. hxg4
Qxd2 {Taimanov,M (2386)-Vasiukov,E (2455) Suzdal 2011 0-1 (38)}) (10. Rd1 d6
11. b3 Bf5 12. Nh3 Qd7 13. Nf4 e3 14. Qb2 exf2+ 15. Kxf2 Ne5 16. c5 Be4 17.
cxd6 Qc6 18. Kg1 Bxg2 19. Nxg2 cxd6 20. c4 Ng6 21. Be3 Re6 22. Rd2 Rae8 23. Bd4
Ne4 24. Rc2 Ng5 {Plantet,S (2304)-Maze,S (2412) Aix les Bains 2003 0-1 (31)}) (
10. Nh3 h6 $11) 10... h6 $15 {Black threatens to win material: h6xg5} 11. Nh3
d6 {Prevents intrusion on e5} 12. Kh1 Bf5 13. Qa4 Qe6 14. Ng1 Nd7 15. Be3 (15.
b3 $5 $17) 15... Nb6 16. Bxb6 axb6 17. Qb3 Na5 18. Qb4 Nxc4 19. Rfd1 Ne5 (19...
Ra5 20. a4 $19) 20. f3 (20. Bxe4 $142 Ng4 21. Bxf5 Qxf5 22. Rf1 $19) 20... exf3
21. Nxf3 Ng4 22. Rd2 (22. Rf1 Be4 23. Bh3 $19) 22... Rxa2 23. Rc1 (23. Rxa2 {
doesn't change anything anymore} Qxa2 24. h3 Qa1+ 25. Ng1 Ne3 $19) 23... Rea8
24. Qd4 (24. e4 Ra1 25. Rxa1 Rxa1+ 26. Ng1 $19) 24... Ra1 25. Rf1 (25. Rcd1 {
does not win a prize} Ne3 26. Rg1 c5 27. Qxd6 Bh3 28. Qd8+ Rxd8 29. Rxd8+ Kh7
30. Rxa1 Bxg2+ 31. Kg1 Ng4 $19) 25... Ne3 (25... Rxf1+ $142 {and Black wins}
26. Bxf1 Ra1 $19) 26. Rg1 Rxg1+ (26... Rxg1+ 27. Nxg1 Ra1 $19) 0-1

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "1.2"]
[White "Drakakis, Athanasios"]
[Black "Sato, Yasuji"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1836"]
[BlackElo "1478"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "133"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8256] D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6
3 Bf4} 1. d4 d5 2. Nf3 Nc6 3. Bf4 h6 $146 {Secures g5} (3... e6 4. e3 Bd6 (4...
a6 5. c4 dxc4 6. Bxc4 Bd6 7. Bg3 Nf6 8. Nc3 O-O 9. a3 Qe7 10. Bh4 Qe8 11. e4 e5
12. d5 Ne7 13. Bxf6 gxf6 14. Nh4 f5 15. Qh5 f6 16. Qh6 Qf7 17. g3 Kh8 18. Rd1
fxe4 19. Nxe4 {Andersen,L (2220)-Kristovic,M (2320) Pula 2009 1-0 (58)}) 5. c3
(5. Bg3 Nf6 (5... Nge7 6. c4 O-O 7. Nc3 Ng6 8. Rc1 a6 9. cxd5 exd5 10. Bxd6
Qxd6 11. g3 Nce7 12. Bg2 Rd8 13. O-O Nf8 14. Ne1 Bf5 15. Nd3 Ne6 16. a3 a5 17.
Na4 b6 18. Nc3 Rac8 19. Ne5 c5 20. Nb5 {Dienavorian Lacherian,M (2310)-Van
Riemsdijk,H (2390) San Pedro de Jujuy 1981 1/2-1/2}) 6. c4 Ne4 7. Nc3 O-O 8.
cxd5 exd5 9. Bd3 Re8 10. Bh4 Be7 11. Bxe7 Rxe7 12. Qb3 Nf6 13. O-O Bg4 14. Qxb7
Re6 15. Ng5 Rd6 16. Nb5 Rb8 17. Nxd6 Rxb7 18. Nxb7 Qc8 19. Nc5 Nb4 {Oms
Pallisse,J (2450)-Gonzalez Velez,F (2400) Spain 1997 1/2-1/2 (34)}) 5... Nge7
6. Bb5 O-O 7. Nbd2 Ng6 8. Bg3 Bd7 9. O-O Qe8 10. Bxc6 Bxc6 11. c4 Bxg3 12. hxg3
dxc4 13. Nxc4 Bd5 14. Rc1 Rc8 15. b3 Qc6 16. Qe2 Qa6 17. e4 Bc6 18. Rfe1 {
Doda,Z (2405)-Pinkas,K (2360) Krakow 1978 1-0 (52)}) (3... g6 4. e3 Bg7 5. c4
e6 6. Nc3 a6 7. Be2 Nge7 8. Rc1 O-O 9. O-O h6 10. h3 g5 11. Bh2 Nf5 12. cxd5
exd5 13. Ne1 Nce7 14. b4 c6 15. a4 b5 16. Ra1 Be6 17. Nd3 Ng6 18. axb5 {
Gross,S (2350)-Kogan,A (2495) Pardubice 1995 1-0 (42)}) 4. Nbd2 g5 {Black
threatens to win material: g5xf4} 5. Bg3 Bg7 6. e3 Bg4 (6... g4 7. Ne5 $11) 7.
h3 {White threatens to win material: h3xg4} Bf5 8. c3 {Covers b4} e6 9. Qa4 a6
{Consolidates b5} 10. Be2 Nge7 11. a3 Bg6 12. Rc1 Nf5 13. Bh2 Nd6 14. b4 b5 {
Black threatens to win material: b5xa4} 15. Qb3 Nc4 16. Nxc4 dxc4 17. Qd1 Qd5 (
17... a5 18. O-O axb4 19. a4 bxa4 20. cxb4 Nxb4 21. Rxc4 $14) 18. Bxc7 $14 O-O
19. Bg3 f5 20. Nd2 e5 21. dxe5 (21. Bh2 f4 22. O-O fxe3 23. fxe3 exd4 24. exd4
Nxd4 25. Rxf8+ Rxf8 26. cxd4 Qxd4+ 27. Kh1 Qb2 28. Bxc4+ bxc4 29. Nxc4 Qf2 $14)
21... Nxe5 (21... f4 22. exf4 gxf4 23. Bh4 $11) 22. Bxe5 $11 Qxe5 {Black has
the pair of bishops} 23. Nf3 {White threatens to win material: Nf3xe5} Qe4 (
23... Qf6 24. Qd5+ Kh7 25. O-O $11) 24. O-O {White castles and improves king
safety} (24. Nd4 Rae8 25. Bf3 Qe5 $14) 24... Rac8 (24... f4 $5 {should be
examined more closely} 25. Nd4 fxe3 $11) 25. Nd4 $16 Bxd4 (25... f4 26. Bf3 Qd3
27. Ne6 $16) 26. cxd4 {White has a new protected passed pawn: d4. Black has a
new protected passed pawn: c4} (26. Qxd4 $5 f4 27. Bf3 Qxd4 28. exd4 $16) 26...
f4 $14 {Black threatens to win material: f4xe3} 27. Bf3 Qd3 28. Qxd3 Bxd3 {
Black can be proud of that piece} 29. Rfe1 fxe3 30. fxe3 {White has a new
passed pawn: e3.} Kg7 (30... Rcd8 31. d5 $14) 31. Rc3 (31. e4 Rf4 $16) 31...
Kf6 (31... Rce8 32. e4 Rf4 33. Kh2 $11) 32. Bd1 (32. e4 $5 $16) 32... Kg6 33.
Bc2 Bxc2 34. Rxc2 {A double rook endgame occured} Rfe8 35. Ree2 (35. e4 Re7 $14
) 35... Re4 (35... Kf5 36. Rc3 $11) 36. Kf2 Rf8+ (36... g4 37. a4 $11) 37. Ke1
$14 Kf6 (37... g4 $142 $5 $14 {is an interesting idea}) 38. Rf2+ $16 Ke7 39.
Rxf8 Kxf8 40. Ke2 Ke7 41. a4 $1 {Deflection: c4} Kd6 $2 (41... bxa4 42. Rxc4 {
Deflection}) 42. axb5 $18 axb5 43. Ra2 Kd5 (43... Kc7 44. Ra6 h5 45. Rg6 $18)
44. Ra6 (44. Ra5 {makes it even easier for White} Kc6 45. Ra6+ Kd5 $18) 44...
c3 (44... Rh4 45. Rb6 $18) 45. Kd3 c2 46. Ra1 Re6 (46... g4 {is no salvation}
47. Rc1 gxh3 48. gxh3 $18) 47. Rc1 Ra6 (47... Rf6 {cannot change destiny} 48.
Rxc2 Rf1 49. Rc5+ Ke6 50. Rxb5 Rd1+ 51. Ke4 $18) 48. e4+ Ke6 (48... Kd6 {
is not much help} 49. e5+ Kd7 50. Rxc2 $18) 49. Rxc2 Ra3+ 50. Rc3 Ra4 (50...
Ra6 {doesn't do any good} 51. e5 $18) 51. Rb3 (51. Rc6+ $142 {secures victory}
Kf7 52. d5 Rxb4 53. Rxh6 Rb1 $18) 51... Ra2 52. Rc3 Rxg2 $4 {Black has let it
slip away} (52... Ra4 53. Rc6+ Kf7 54. Rxh6 Ra3+ 55. Ke2 Ra2+ 56. Kf3 Rb2 $18)
53. Rc6+ $18 Kd7 (53... Kf7 {does not solve anything} 54. Rxh6 Rg3+ 55. Ke2 $18
) 54. Rxh6 Rg3+ 55. Ke2 Rb3 56. e5 Rxb4 57. Kd3 Rb3+ (57... Rc4 58. d5 Rc5 59.
Rh7+ Kc8 60. Ke4 $18) 58. Ke4 Rg3 (58... Rb2 {a fruitless try to alter the
course of the game} 59. Kd5 $18) 59. Kd5 {[%cal Ye5e6] White prepares e6} b4 (
59... Ke7 {cannot undo what has already been done} 60. Rh7+ Kf8 61. e6 $18) 60.
e6+ Ke7 61. Rh7+ Kf6 62. Kd6 b3 (62... Ra3 63. Rf7+ Kg6 $18) 63. Rf7+ Kg6 64.
Rb7 Rxh3 (64... Kf6 65. d5 Rd3 66. e7 $18) 65. e7 Kf7 (65... Re3 66. Rxb3 $3 {
Mate threat} Rxb3 67. e8=Q+ Kg7 68. Qe5+ Kh7 69. Qe7+ Kg6 70. Qe6+ Kh5 71. Qxb3
g4 72. Ke6 Kg6 73. Qg3 Kg7 74. Qxg4+ Kh7 75. Kf6 Kh6 76. Qh3#) 66. Rb8 Rh6+ 67.
Kd7 (67. Kd7 Kg7 68. e8=Q Rf6 69. Qe5 Kg6 70. Rg8+ Kh7 71. Qe8 b2 72. Rh8+ Kg7
73. Qg8#) 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "1.3"]
[White "Koyahata, Taku"]
[Black "Watanabe, Katsumi"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "1401"]
[BlackElo "1741"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "60"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4)} 1. d4
d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. Bd2 $146 (5. cxd5 Nxd5 (5... Bxc3+ 6. bxc3
Nxd5 7. e4 Ne7 8. Bd3 O-O 9. e5 f5 10. exf6 Rxf6 11. Qe2 h6 12. Ba3 Nd5 13. Qe4
g6 14. Ne5 Nf4 15. Bc2 Qd5 16. g3 Nh3 17. Ng4 Rf5 18. Nxh6+ Kg7 19. Nxf5+ gxf5
20. Qxd5 {Friedman,A (2295)-Song,P (2175) Philadelphia 1995 1-0}) 6. Bd2 O-O 7.
e4 Nxc3 8. bxc3 Be7 9. Bc4 b6 10. Qe2 Nc6 11. O-O Na5 12. Bd3 c5 13. Rad1 Bb7
14. Bf4 cxd4 15. cxd4 Bf6 16. d5 exd5 17. exd5 g6 18. Ba6 Re8 19. Qd3 Bxa6 {
Tatai,S (2460)-Kaldor,A (2200) Netanya 1973 0-1 (40)}) (5. Bf4 c5 (5... O-O 6.
e3 c5 7. dxc5 Nc6 8. Be2 Re8 9. O-O Bxc5 10. cxd5 exd5 11. Rc1 Be6 12. Qa4 Qb6
13. Nb5 Rac8 14. Bc7 Qa6 15. Qxa6 bxa6 16. Rxc5 axb5 17. Rxc6 {1-0 (17) Witke,
T (2200)-Jovic,L (2345) Boeblingen 1985}) 6. e3 Nc6 7. Bd3 dxc4 8. Bxc4 Nd5 9.
Bxd5 Qxd5 10. O-O Bxc3 11. bxc3 O-O 12. Qe2 b6 13. c4 Qf5 14. Bg3 Qh5 15. Rfd1
Ba6 16. Rac1 Rfd8 17. h3 Rac8 18. Qc2 Na5 19. d5 exd5 {Milov,V (2676)-Landa,K 
(2678) Ajaccio 2007 0-1 (45)}) (5. Ne5 O-O 6. Bg5 c5 7. Rc1 Nc6 8. e3 cxd4 9.
exd4 Be7 10. Be2 Bd7 11. Nxc6 Bxc6 12. c5 b6 13. b4 bxc5 14. bxc5 Ne4 {1/2-1/2
(14) Eltigani,O (2310)-Tatar Kis,S (2367) Hungary 2012}) 5... O-O 6. a3 {
White threatens to win material: a3xb4} Be7 7. e3 b6 8. Be2 Bb7 9. Rb1 c5 10.
b4 (10. O-O $5 $11 {is interesting}) 10... cxd4 $17 11. Nxd4 Qd7 (11... dxc4
12. O-O $17) 12. O-O (12. cxd5 Nxd5 13. O-O Rd8 $11) 12... dxc4 $15 13. Bxc4
Nc6 14. Nf3 Rfd8 15. Qe2 (15. Qb3 a6 $11) 15... Rac8 (15... Nxb4 16. axb4 Bxf3
17. Qxf3 Qxd2 18. Nb5 $15) 16. Rfd1 $11 Qc7 17. Ba6 e5 (17... Bxa6 18. Qxa6 Ne5
19. Nxe5 Qxe5 20. h3 $11) 18. Bxb7 $11 Qxb7 19. e4 (19. b5 $5 Na5 20. Nxe5 Bxa3
21. Be1 $11) 19... Nd4 $15 {Black threatens to win material: Nd4xe2} 20. Qd3
Qb8 (20... a6 21. Nxe5 Nb5 22. Nd5 Nxd5 23. exd5 Qxd5 24. Qe3 $17) 21. Nd5 (21.
Nxd4 $142 $5 {must be considered} Rxd4 22. Qe2 $11) 21... Nxd5 $17 22. exd5
Rxd5 23. Nxd4 Rxd4 24. Qg3 $4 {the position is going down the drain} (24. Qf1
$142 $17) 24... Rcd8 (24... Qd6 $5 {keeps an even firmer grip} 25. Re1 Rxd2 26.
Qxe5 Qxe5 27. Rxe5 $19) 25. Rb2 f6 (25... h6 $142 $19 {secures the win}) 26. h3
(26. Qb3+ Kh8 27. Qf7 R8d7 $19) 26... Qc8 (26... f5 27. Qb3+ Kh8 28. Qe3 $19)
27. Rc1 (27. Qb3+ Qc4 28. Qa4 e4 $17) 27... Qe6 28. Be3 Rd3 29. Rbc2 $2 (29.
Qf3 $142 $19) 29... f5 30. Qh2 (30. Rc6 Qd5 31. Rc7 $19) 30... Rd1+ (30... Rd1+
31. Rxd1 Rxd1#) 0-1

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "1.4"]
[White "Manabe, Hiroyuki"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1723"]
[BlackElo "1303"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "55"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] B33: Sicilian: Pelikan and Sveshnikov Variations} 1. e4 c5 2. d4
cxd4 3. Nf3 Nc6 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7
10. Bxf6 Bxf6 11. Nxf6+ Qxf6 12. Qd5 (12. c3 O-O 13. Be2 (13. Nc2 Bb7 14. g3
Ne7 15. Bg2 Rad8 16. Ne3 Qg6 17. Nf5 Qf6 18. Nxe7+ Qxe7 19. O-O Bc6 20. Qb3 Kh8
21. Rad1 Qb7 22. Qa3 Qc7 23. Rd2 f5 24. Rfd1 Rf6 25. exf5 Bxg2 26. Kxg2 Qc6+
27. Kg1 d5 {Stoilov,A (2162)-Yordanov,N (2243) Albena 2010 0-1 (53)}) 13... Bb7
14. O-O Rad8 15. Bf3 Nb8 16. Nc2 Nd7 17. Re1 Nc5 18. Nb4 g6 19. Nd5 Bxd5 20.
Qxd5 Rb8 21. Red1 Rb6 22. Rd2 Rc8 23. Bd1 Qg5 24. Bb3 Rc7 25. Rad1 Rbc6 26. a3
h5 {Larino Nieto,D (2488)-Kotronias,V (2603) Budva 2009 0-1 (36)}) 12... Bb7
13. Rd1 O-O $146 (13... Ke7 14. c3 Rab8 15. Qd2 Rhd8 16. Nc2 Kf8 17. Ne3 Ne7
18. Nd5 Qh4 19. Qe3 Nxd5 20. exd5 Qa4 21. Bd3 Qxa2 22. Bxh7 Qxb2 23. O-O Qa3
24. Be4 Qc5 25. Qg5 Qc4 26. Rfe1 Qc7 27. Re3 Qe7 28. Qh5 {Varga,C (2179)-Nagy,
J (2300) Hungary 1999 1-0 (36)}) 14. Qxd6 Qxd6 (14... Qf4 $142 $5 {is the best
option Black has} 15. Bd3 Nd4 $15) 15. Rxd6 $14 Nb4 16. f3 {Controls e4} Rac8 (
16... Nxa2 17. Rb6 Rab8 18. c4 $14) 17. c3 {White threatens to win material:
c3xb4} (17. c4 $5 $16) 17... Nxa2 $14 18. Be2 b4 19. cxb4 Nxb4 (19... Rc1+ 20.
Rd1 Rxd1+ 21. Kxd1 Rd8+ 22. Kc2 Nxb4+ 23. Kc3 $14) 20. O-O {[%cal Rd6a6,Re2a6,
Gb4a6,Gb7a6] Attacking the isolated pawn on a6} Nc2 21. Bxa6 Rc7 (21... Bxa6 $5
22. Rxa6 h5 $14) 22. Rc1 Rfc8 $4 {the position was bad, and this mistake
simply hastens the end} (22... Bxa6 $142 23. Rxc2 Rxc2 24. Nxc2 Bc4 $16) 23.
Bxb7 (23. Rxc2 {and White can already relax} Rxc2 24. Nxc2 Bxa6 25. Rxa6 h5 $18
) 23... Rxb7 24. Rxc2 Rf8 (24... Ra8 {does not improve anything} 25. Nc4 f6 26.
Rc6 $18) 25. Nc4 f6 26. Ne3 Ra8 27. Rcd2 (27. Nf5 $5 {might be the shorter path
} Ra1+ 28. Kf2 h5 $18) 27... Kf7 (27... Ra1+ {a last effort to resist the
inevitable} 28. Kf2 h5 $18) 28. Rd7+ (28. Rd7+ Rxd7 29. Rxd7+ Kg8 30. Nf5 $18)
1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "1.5"]
[White "Takeuchi, Hiroshi"]
[Black "Kikuchi, Akira"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "1276"]
[BlackElo "1718"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "68"]
[SourceVersionDate "2019.03.23"]

{A13: English Opening: 1...e6} 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. b3 b6 5. Bb2 Bb7
6. Be2 Be7 7. O-O O-O 8. c4 cxd4 9. exd4 (9. Nxd4 d6 10. Bf3 Qc8 11. Bxb7 Qxb7
12. Qf3 Qxf3 13. Nxf3 Nbd7 14. Nc3 a6 15. Rfd1 Rfc8 16. Ba3 Ne8 17. Ne4 Nc5 18.
Nxc5 bxc5 19. Bb2 Rcb8 20. e4 e5 21. Rd3 a5 22. a4 f5 23. exf5 e4 {Filipets,E 
(2240)-Stupak,K (2557) Minsk 2015 0-1 (57)}) 9... d5 10. Nbd2 Nbd7 (10... Nc6
11. Bd3 Nb4 12. Bb1 Rc8 13. Ne5 dxc4 14. bxc4 Nc6 15. Nef3 Qc7 16. Bd3 Nb4 17.
Be2 Rfd8 18. Qb3 Nc6 19. Rac1 Qf4 20. Rfd1 h6 21. h3 Ne4 22. Nxe4 Na5 23. Qb5
Qxe4 24. Bf1 Bf6 25. Bc3 {Milov,V (2635)-Pelletier,Y (2465) Biel 1997 0-1 (51)}
) 11. Ne5 $146 (11. a3 Ne4 12. Rc1 Bd6 13. Rc2 Qe7 14. Qa1 Ndf6 15. Ne5 Nxd2
16. Rxd2 dxc4 17. bxc4 Ne4 18. Rc2 Bxe5 19. dxe5 Rad8 20. Bd4 Nd2 21. Be3 Nxf1
22. Bxf1 Be4 23. Rc3 Qc7 24. Bg5 Rd7 25. Rg3 Qc5 {Irizanin,R (2330)
-Radovanovic,J (2284) Sabac 2014 0-1 (33)}) 11... Nxe5 12. dxe5 Nd7 13. Nf3 Re8
14. Qc2 Qc7 15. Rac1 Rac8 16. h3 (16. Qd3 Qb8 $11) 16... dxc4 (16... b5 17. c5
Qa5 18. Bd3 $15) 17. Qxc4 $11 Qxc4 18. Rxc4 Rxc4 19. bxc4 (19. Bxc4 Nc5 $11)
19... Nc5 {The knight feels good on c5} 20. Rd1 Rd8 21. Rxd8+ Bxd8 {A minor
pieces endgame occured} 22. Nd2 Bg5 {Black threatens to win material: Bg5xd2}
23. Nb1 Kf8 24. Kf1 Ke8 25. Bd4 Be7 26. Nc3 a6 {Consolidates b5} 27. Bd1 Bc6
28. Bc2 g6 {Secures f5} 29. a4 Kd7 30. f3 {Prevents intrusion on e4} h5 31. Ke2
Bf8 32. Kd1 Be7 33. Ke2 Bf8 {Twofold repetition} 34. Kd1 Be7 1/2-1/2

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "1.6"]
[White "Kanamaru, Tomoji"]
[Black "Takahashi, Ryunosuke"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1621"]
[BlackElo "1000"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "61"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] B33: Sicilian: Pelikan and Sveshnikov Variations} 1. e4 c5 2. Nf3
Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7
10. Bxf6 Bxf6 11. c3 O-O 12. Be2 (12. Bd3 Bg5 13. Bc2 Rb8 14. Qd3 b4 15. Nc4
bxc3 16. bxc3 Ne7 17. Nxe7+ {1/2-1/2 (17) Arnason,J (2550)-Van der Wiel,J 
(2560) Haninge 1989}) 12... Rb8 (12... Ne7 13. Nc2 Nxd5 14. Qxd5 Be6 15. Qd3 d5
16. Rd1 dxe4 17. Qxe4 Qb6 18. Nb4 g6 19. O-O Bg7 20. Nd5 Bxd5 21. Rxd5 Rad8 22.
Rfd1 f5 23. Qb4 Rxd5 24. Rxd5 Qe6 25. Bd1 Kh8 26. Bb3 Qf6 27. Rd1 {Voigt,R 
(2279)-Seiler,A (2228) Neumuenster 2000 1/2-1/2 (37)}) 13. O-O $146 (13. Nc2 a5
14. O-O Be6 15. Nce3 Bg5 16. a3 Ne7 {1/2-1/2 (16) Ortega,L (2460)-Sulava,N 
(2380) Verona 1997}) 13... Bg5 14. Bg4 Ne7 15. Bxc8 Rxc8 16. Nc2 Nxd5 17. Qxd5
Qb6 18. Rad1 Rfd8 19. Qd3 Rc4 20. Nb4 Qa5 21. a3 Qa4 22. Rfe1 a5 23. Nd5 {
Praise the knight!} Qb3 {Black threatens to win material: Qb3xb2} 24. Re2 h5 (
24... g6 25. g3 $14) 25. Rf1 (25. Rde1 Rf8 $16) 25... h4 (25... Rb8 26. Qg3 Bd8
27. Qh3 $16) 26. f4 (26. Qf3 $5 Rc5 27. Qg4 $16) 26... exf4 $11 27. Nxf4 Qa4 $4
(27... Rc5 $142 $11 {and Black can hope to live}) 28. Nd5 $18 Rc6 $4 {shortens
the misery for Black} (28... h3 29. Nb6 Qb3 30. Qd5 $18) 29. Qf3 (29. Rf5 $142
{seems even better} Qc4 30. Qxc4 Rxc4 31. Rxg5 $18) 29... Rd7 $4 {a blunder in
a bad position} (29... Rf8 $142 30. Qf5 Bd8 $18) 30. Qf5 (30. Qg4 $142 {
it becomes clear that White will call all the shots} Qc4 31. Qxg5 Qxe2 32. Nf6+
Kf8 33. Nxd7+ Ke8 34. Qxg7 Qxf1+ 35. Kxf1 Kxd7 36. Qxf7+ Kc8 37. Qf5+ Kd8 38.
Qg5+ Kc7 39. Qe7+ Kc8 40. Qxh4 Rc7 41. Qh8+ Kb7 $18) 30... Rd8 (30... Rcc7 31.
Qxg5 Kf8 32. Rxf7+ Ke8 33. Rf8+ Kxf8 34. Rf2+ Ke8 35. Qh5+ Rf7 36. Qh8+ Kd7 37.
Rxf7+ Ke6 38. Qe8+ Re7 39. Qxe7#) 31. Qxg5 (31. Qxg5 Re8 32. Ref2 Rxc3 33. bxc3
Qd1 34. Rxf7 Qxf1+ 35. Rxf1 Rxe4 36. Qg6 Re2 37. Rf7 Re1+ 38. Kf2 Rf1+ 39. Kxf1
a4 40. Qxg7#) 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "1.7"]
[White "Sugano, Shun"]
[Black "Kobayashi, Katsuhiko"]
[Result "1-0"]
[ECO "C55"]
[BlackElo "1564"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "107"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack} 1. e4
e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Bb3 O-O 6. O-O d6 7. c3 Bg4 8. Nbd2 Re8
$146 (8... Qd7 9. h3 Bh5 10. Nc4 h6 (10... Nd8 11. Ne3 Re8 12. Nf5 Ne6 13. Re1
Bf8 14. Ng3 Bg6 15. d4 exd4 16. cxd4 c5 17. d5 Nc7 18. Bc2 h6 19. Nh4 Bh7 20.
Nhf5 b5 21. b3 Qd8 22. Bb2 g6 23. Ne3 Bg7 24. Rb1 Qe7 25. e5 {Yudasin,L (2505)
-Jigjidsuren,P (2365) Gdynia 1987 1-0 (51)}) 11. Ne3 Nh7 12. g4 Bg6 13. Kg2 Ng5
14. Nh4 Ne6 15. Nhf5 Nf4+ 16. Kg3 Bxf5 17. Nxf5 g6 18. d4 gxf5 19. dxe5 Rfd8
20. Bxf4 dxe5 21. Bxh6 f4+ 22. Kg2 Qxd1 23. Rfxd1 {Yudasin,L (2405)-Zsinka,L 
(2335) Budapest 1982 1-0 (44)}) (8... d5 9. h3 Bh5 10. exd5 Nxd5 11. Nc4 Bf6
12. Re1 b5 13. g4 bxc4 14. dxc4 Nxc3 15. Qxd8 Rfxd8 16. gxh5 e4 17. Nh2 Nd4 18.
bxc3 Nxb3 19. axb3 Bxc3 20. Be3 f5 21. Nf1 Rd3 22. b4 a5 23. bxa5 {Anand,V 
(2505)-Barua,D (2455) New Delhi 1987 1-0 (42)}) (8... h6 9. Nc4 Be6 10. Ne3 d5
11. d4 exd4 12. exd5 Nxd5 13. Nxd4 Nxd4 14. Qxd4 Nxe3 15. Bxe3 Qxd4 16. Bxd4
Bxb3 17. axb3 c5 18. Rfe1 Rfe8 19. Be3 a6 20. Kf1 Kf8 21. Rad1 Red8 22. Ke2 Ke8
23. Kf3 {Volf,Z (2210)-Truta,S (2201) Ljubljana 2009 1/2-1/2 (47)}) 9. Re1 a5
10. Ba4 Rf8 11. Nf1 Rb8 12. h3 Bxf3 13. Qxf3 {White has the pair of bishops} b5
{Black threatens to win material: b5xa4} 14. Bb3 a4 {Black gets more space} 15.
Bd5 Nxd5 16. exd5 Na5 17. g4 (17. Ng3 Bg5 $14) 17... Bg5 18. Ng3 Bxc1 19. Raxc1
b4 (19... g6 20. Qe4 $11) 20. c4 (20. Re4 bxc3 21. bxc3 Nb7 $14) 20... b3 $11
21. a3 Nb7 22. Ne4 Nc5 $2 (22... f6 $142 $11 {is a viable option}) 23. Nxc5 $16
dxc5 24. Rxe5 Qd6 25. Rce1 Qg6 (25... Rbc8 26. R1e3 $16) 26. Qe4 f5 $2 (26...
Qd6 $142 $16) 27. Rxf5 $18 Rxf5 28. Qxf5 Qh6 (28... Qxf5 29. gxf5 Kf7 30. Re6
$18) 29. Qe6+ Qxe6 30. Rxe6 Kf7 31. Ra6 Re8 32. Kf1 g6 (32... Rd8 {does not
save the day} 33. Ra7 Rc8 34. Rxa4 $18) 33. Rxa4 Kf6 (33... Ke7 $18 {praying
for a miracle}) 34. Ra6+ Kg5 35. Re6 Rf8 36. Kg2 Kf4 (36... h5 {does not solve
anything} 37. gxh5 gxh5 38. Rc6 $18) 37. Re4+ Kg5 38. Re7 h5 (38... Kf4 {
hardly improves anything} 39. f3 Kg5 40. Rxh7 $18) 39. gxh5 gxh5 40. Re5+ (40.
Rxc7 $5 {might be the shorter path} Kh4 $18) 40... Kf4 (40... Kg6 {doesn't get
the cat off the tree} 41. h4 $18) 41. Rxh5 Rg8+ 42. Kf1 Ra8 (42... Rg7 {
doesn't change the outcome of the game} 43. a4 $18) 43. Rh7 Rxa3 (43... Rc8 {
cannot change what is in store for ?} 44. h4 $18) 44. Rxc7 Ra2 (44... Ra1+ {
the only chance to get some counterplay} 45. Ke2 Rb1 $18) 45. d6 Rxb2 (45...
Ra1+ 46. Ke2 Rc1 47. d7 Rc2+ 48. Kd1 Rxf2 49. d8=Q Rf1+ 50. Ke2 Re1+ 51. Kxe1
Kf3 52. Rg7 Kf4 53. Qf6+ Ke3 54. Rg3#) 46. d7 Kf3 47. Kg1 Rb1+ 48. Kh2 Rb2 49.
d8=Q Rxf2+ 50. Kg1 Rg2+ (50... Ra2 {doesn't get the bull off the ice} 51. Qf6+
Ke3 52. Qc3 Ra1+ 53. Kg2 Ra2+ 54. Kg3 Rg2+ 55. Kxg2 Kf4 56. Rxc5 Ke3 57. Re5+
Kf4 58. Qd4#) 51. Kh1 (51. Kf1 $5 b2 52. Qf6+ Ke3 53. Qe5+ Kxd3 54. Rd7+ Kc2
55. Qe4+ Kb3 56. Qd3+ Ka4 57. Ra7+ Kb4 58. Rb7+ Ka4 59. Qb3+ Ka5 60. Ra7#)
51... b2 52. Rb7 Re2 (52... Rc2 {is not the saving move} 53. Rf7+ Ke2 54. Qe7+
Kd2 55. Rf2+ Kc3 56. Qe1+ Kb3 57. Qd1 b1=Q 58. Qxb1+ Kc3 59. Rxc2+ Kxd3 60. Qb2
Ke4 61. Re2+ Kf4 62. Qf6+ Kg3 63. Re3#) 53. Qf6+ Kg3 (53... Ke3 {does not help
much} 54. Re7+ Kxd3 55. Qf3+ Kxc4 56. Qxe2+ Kb4 57. Re4+ c4 58. Qxc4+ Ka5 59.
Re5+ Kb6 60. Rb5+ Ka6 61. Qa4#) 54. Rg7+ (54. Rg7+ Kxh3 55. Qh6#) 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "2.1"]
[White "Sugimoto, Koichi"]
[Black "Manabe, Hiroaki"]
[Result "1-0"]
[ECO "C06"]
[WhiteElo "2013"]
[BlackElo "1723"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "87"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] C06: French Tarrasch: 3...Nf6 4 e5 Nfd7 5 Bd3 main lines} 1. e4 e6
2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 Qb6 8. Nf3 Be7 9. O-O
f6 10. exf6 (10. Nf4 Nd8 11. Re1 f5 12. Bxf5 exf5 13. Nxd5 Qc6 14. Nxe7 Kxe7
15. d5 Qa6 16. d6+ Kf7 17. Qd5+ Ke8 18. e6 Nf6 19. d7+ Ke7 20. Qxc5+ {1-0 (20)
Verduga Zavala,D (2250)-Toth,P (2320) Nice 1974}) 10... Nxf6 11. dxc5 $146 (11.
Ng3 O-O 12. a3 cxd4 13. cxd4 Bd7 14. b4 Bd6 15. b5 Na5 16. Ne5 Rac8 17. Bg5 Be8
18. Qa4 Bxe5 19. dxe5 Nd7 20. Qb4 Nxe5 21. Bxh7+ Kxh7 22. Qxf8 Qxb5 23. Qd6
Nac4 24. Qxe6 Bd7 25. Qe7 Re8 {Nasunov,M (2200)-Grigoryan,A (2256) Elista 2014
1-0 (37)}) 11... Bxc5 12. b4 Be7 (12... Bd6 13. Be3 Qc7 14. Ned4 $14) 13. a4 e5
14. a5 {White threatens to win material: a5xb6} (14. b5 e4 15. Be3 Qc7 $14)
14... Qc7 $11 15. Bb5 O-O 16. h3 {Secures g4} Be6 17. Ng3 (17. a6 Bd6 $11)
17... a6 {Black threatens to win material: a6xb5} 18. Be2 (18. Bxc6 bxc6 19.
Be3 Bd6 $11) 18... Rad8 (18... e4 19. Ng5 Bd7 20. c4 $15) 19. Bd2 (19. Qb3 h6
$11) 19... Bf7 (19... Ne4 $142 $5 $17) 20. Ng5 $11 Bd6 21. Nf5 Qd7 (21... Ne7
22. Nxd6 Qxd6 23. Re1 $11) 22. Nxd6 $14 Qxd6 23. Nxf7 {White forks: d6+d8} Rxf7
{White has the pair of bishops} 24. Qb3 Ne4 {Black threatens to win material:
Ne4xd2} 25. Be1 Rdf8 (25... Ng5 26. Rd1 $11) 26. Bh5 (26. Rd1 $5 {should be
considered} Nf6 27. f3 $14) 26... Rf6 27. Rd1 {White threatens to win material:
Rd1xd5} Ne7 (27... Ng3 28. Rxd5 Qe6 29. Bg4 $11) 28. f3 Ng3 $4 (28... Qc6 $142
{was a good chance to save the game} 29. Bg4 R6f7 $11) 29. Bxg3 $18 g6 30. Bg4
h5 31. Bh4 hxg4 (31... R6f7 32. Bxe7 Qxe7 33. Qxd5 hxg4 34. fxg4 $18) 32. Bxf6
Rxf6 (32... Qxf6 {cannot undo what has already been done} 33. fxg4 Qe6 34.
Rxf8+ Kxf8 35. Rf1+ Kg7 36. Qd1 $18) 33. fxg4 Kg7 (33... Rxf1+ {hardly
improves anything} 34. Rxf1 Nc6 35. c4 $18) 34. Rxf6 Qxf6 35. Rf1 (35. c4 {
keeps an even firmer grip} Nc6 36. cxd5 Nd8 $18) 35... Qg5 (35... Qc6 {doesn't
change anything anymore} 36. Qc2 Qe8 37. Qf2 $18) 36. c4 d4 (36... Nc6 37. cxd5
Nd4 38. Qc4 $18) 37. b5 e4 (37... Ng8 {doesn't get the cat off the tree} 38.
bxa6 bxa6 39. c5 Qe3+ 40. Qxe3 dxe3 41. c6 $18) 38. c5 Qxc5 (38... Nd5 39. c6
bxc6 40. bxa6 Qe3+ 41. Qxe3 dxe3 $18) 39. Qf7+ Kh6 (39... Kh8 {does not
improve anything} 40. Qf8+ Ng8 41. Qxc5 Nh6 42. Rf8+ Ng8 43. Qe7 e3 44. Qf7 e2
45. Rxg8#) 40. Qf8+ Kg5 41. h4+ (41. Qf4+ Kh4 42. g5+ Kh5 43. Qg4#) 41... Kxh4
(41... Kxg4 {cannot change what is in store for ?} 42. Qf4+ Kh5 43. g4+ Kxh4
44. Qh6+ Qh5 45. gxh5 g5 46. Kh2 axb5 47. Qe6 Kxh5 48. Qf7+ Kh4 49. Qh7+ Kg4
50. Qh3#) 42. Qh6+ Kxg4 (42... Qh5 {doesn't do any good} 43. gxh5 g5 44. Qd6 g4
45. Qxe7+ Kg3 46. Qd6+ Kh4 47. Qf6+ Kxh5 48. Rf5#) 43. Rf4+ Kg3 44. Qh4# 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "2.2"]
[White "Kanamaru, Tomoji"]
[Black "Drakakis, Athanasios"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1621"]
[BlackElo "1836"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "34"]
[SourceVersionDate "2019.03.23"]

{B01: Scandinavian Defence} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d3 c6 (4... g6
5. Bd2 Bh6 6. Bxh6 Nxh6 7. h3 Nc6 8. Nge2 Nf5 9. a3 Be6 10. b4 Qe5 11. Ne4
O-O-O 12. g3 Ncd4 13. Bg2 Nxc2+ {0-1 (13) Naumov,A (2212)-Reprintsev,A (2428)
Dos Hermanas 2003}) (4... Nf6 5. Bd2 Nc6 6. g3 Bg4 7. f3 Bh5 8. h4 h6 9. g4 Bg6
10. f4 O-O-O 11. Bg2 e6 12. Bxc6 bxc6 13. h5 Bh7 14. Qf3 Nd5 15. Nxd5 Qxd5 16.
Bc3 f6 17. Qxd5 cxd5 18. Ne2 Bd6 19. O-O-O {Pueyo Burrel,D (2167)-Ibanez
Tarradellas,E (2267) Barcelona 2015 1/2-1/2}) 5. Be2 Nf6 6. Nf3 Bg4 $146 (6...
Bf5 7. Nd4 Bg6 8. Bf3 e5 9. Nb3 Qc7 10. Be3 Nbd7 11. Nd2 Bb4 12. Nde4 Nxe4 13.
Bxe4 Bxe4 14. dxe4 Bxc3+ 15. bxc3 Nf6 16. f3 O-O 17. O-O Rfd8 18. Qe2 Qa5 19.
Qc4 Nd7 20. Qb4 Qc7 21. Rfd1 {Nelsen,A (2251)-Bock,J (2251) Kleve 2001 0-1 (57)
}) 7. h3 {White threatens to win material: h3xg4} Bh5 8. O-O e6 {Prevents
intrusion on d5} 9. a3 {Covers b4} Nbd7 10. Be3 Be7 11. Re1 O-O 12. Nd4 Bg6 13.
Bf3 Qc7 14. Ne4 Rad8 15. Nc3 a6 {Controls b5} 16. Qd2 Bd6 17. Nde2 (17. g3 $5
$11 {looks like a viable alternative}) 17... Ne5 $17 0-1

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "2.3"]
[White "Watanabe, Katsumi"]
[Black "Sugano, Shun"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "1741"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "82"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8256] C00: French: Unusual White 2nd moves} 1. e4 e6 2. Nf3 d5 3. e5 c5
4. Bb5+ Bd7 5. Bxd7+ Nxd7 (5... Qxd7 6. O-O Nc6 7. c3 Nge7 8. d3 h5 9. Bg5 Nf5
10. Re1 Be7 11. Qd2 Rd8 12. Na3 f6 13. Bf4 Kf7 14. Re2 a6 15. Rae1 Rhg8 16. Nc2
d4 17. c4 Rde8 18. Re4 Bd8 19. b4 g5 20. exf6 {Rigo,J (2325)-Goczo,M (2185)
Hungary 1999 1/2-1/2 (44)}) 6. O-O Ne7 7. c3 $146 (7. d3 Nc6 8. Re1 Be7 9. c4
dxc4 10. dxc4 Ndxe5 11. Nbd2 Nxf3+ 12. Qxf3 O-O 13. Ne4 Nd4 14. Qd3 Qc7 15. b4
b6 16. bxc5 bxc5 17. Ng5 Bxg5 18. Bxg5 h6 19. Be3 Rfd8 20. Qd1 Nf5 21. Qf3 Nxe3
{Spal,M (2223)-Kukla,P (2168) Czechia 2011 0-1 (34)}) 7... Nc6 8. d4 Be7 9. Bf4
O-O 10. Nbd2 cxd4 11. cxd4 Rc8 12. Nb3 Na5 (12... a5 13. Bd2 $15) 13. Qd3 (13.
Nxa5 Qxa5 14. Qd3 Nb6 $11) 13... Nxb3 14. axb3 a6 15. Bd2 Nb8 16. b4 {Black
has a cramped position} Qb6 17. Ra4 (17. b5 axb5 18. Ra5 b4 $15) 17... Qc6 {
Black threatens to win material: Qc6xa4} (17... Nc6 18. Raa1 $17) 18. Ra3 Qc4
19. Ng5 $2 (19. Qxc4 $142 Rxc4 20. Rc3 $17) 19... Qxd3 $19 20. Rxd3 Nc6 (20...
Rc2 $5 21. Nf3 Rxb2 22. Bc1 $19) 21. f4 Bxb4 22. f5 Bxd2 23. Rxd2 exf5 24. Rxf5
h6 25. Nf3 Nd8 26. h3 (26. Nh4 Ne6 $17) 26... Ne6 $19 27. Rd3 (27. Ne1 $19)
27... Rc2 28. Rb3 b5 29. Kh2 (29. Rh5 Rfc8 30. Rh4 R8c4 $19) 29... Rb8 (29...
Rfc8 {makes it even easier for Black} 30. Ra3 R8c6 31. b3 $19) 30. h4 (30. Ra3
Ra8 31. Rb3 Rac8 $19) 30... a5 {[%cal Yb5b4] Black plans b4} 31. Kh3 (31. Ra3 {
is the last straw} a4 32. Ra2 $19) 31... b4 32. g4 (32. Ne1 {desperation} Re2
33. Rg3 Rxe1 34. Rff3 $19) 32... a4 33. Rd3 a3 34. bxa3 b3 35. g5 (35. Nd2 {
otherwise it's curtains at once} b2 36. Rf1 Nf4+ 37. Rxf4 Rxd2 38. Rxd2 $19)
35... hxg5 (35... b2 36. Rd1 Rc1 37. gxh6 b1=Q 38. h7+ Kxh7 39. Rh5+ Kg8 40.
Rxc1 Qxc1 41. Rg5 Qf1+ 42. Kg3 Rb2 43. Rxg7+ Kxg7 44. Nd2 Rxd2 45. Kg4 Qf4+ 46.
Kh5 Qf3#) 36. hxg5 b2 37. Nd2 Rxd2 $1 {Decoy: d2} 38. Rxd2 (38. Rxd2 b1=N {
Decoy Double attack} (38... b1=Q {Promotion})) (38. Z0 $140 Rxd3+ {Mate threat}
) 38... b1=Q 39. Rdf2 Rb3+ (39... Qh1+ 40. Kg3 Nxg5 41. e6 Rb3+ 42. R2f3 Nxf3
43. exf7+ Kf8 44. Rxd5 Qh4+ 45. Kg2 Qh2+ 46. Kf1 Rb1#) 40. Kh2 $19 Qd3 (40...
Nxd4 41. Rxf7 Qh7+ 42. Kg1 Rg3+ 43. Rg2 Rh3 44. Rb2 Rh1+ 45. Kf2 Qh2+ 46. Ke3
Qxe5+ 47. Kd2 Qe2+ 48. Kc3 Rc1+ 49. Rc2 Rxc2+ 50. Kxd4 Qe4#) 41. Rxf7 Qh3+ (
41... Qh3+ 42. Kg1 Rg3+ 43. Rg2 Qxg2#) 0-1

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "2.4"]
[White "Nishimori, Toshiyuki"]
[Black "Takeuchi, Hiroshi"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1811"]
[BlackElo "1276"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "43"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8256] C02: French: Advance Variation} 1. e4 e6 2. d4 d5 3. e5 Nc6 4. Be3
$146 {Black has a cramped position} (4. c3 Nge7 5. Bd3 Bd7 6. h4 g6 7. h5 Bg7
8. h6 Bf8 9. Bg5 b6 10. Bf6 Bxh6 11. Rxh6 Nf5 12. Bxf5 Nxe5 13. Bxd8 {1-0 (13)
WindPower (2412)-LuBueWy (2486) playchess.com INT 2006}) (4. f4 f6 (4... Nge7
5. Nf3 Ng6 6. c3 Be7 7. Bd3 b6 8. O-O a5 9. Qa4 O-O 10. f5 Nh8 11. Be3 Qe8 12.
f6 gxf6 13. Qc2 fxe5 14. Bxh7+ Kg7 15. dxe5 f5 16. exf6+ Bxf6 17. Bd3 Qh5 18.
Na3 Bd7 19. Nb5 {Rumpf,T (2252)-Bruemmer,F (2237) Germany 2004 0-1 (44)}) 5.
Nf3 Qe7 6. c3 Bd7 7. Bd3 O-O-O 8. O-O Qf7 9. b4 Kb8 10. a4 Nge7 11. Nbd2 a5 12.
bxa5 Nxa5 13. Ba3 Nec6 14. Bxf8 Rhxf8 15. Qc2 Qh5 16. h3 Qh6 17. Nh2 f5 18. Rf2
g5 {Papp,G (2571)-Petenyi,T (2457) Slovakia 2013 1-0 (58)}) 4... Bb4+ (4...
Nge7 5. Bd3 $11) 5. c3 $14 {White threatens to win material: c3xb4} Ba5 6. Bd3
Nge7 7. Ne2 Bb6 8. O-O O-O 9. Nd2 Bd7 10. a4 a6 {Consolidates b5} 11. b4 Nb8 (
11... Nf5 $5 $14) 12. Nf3 c6 (12... Nbc6 13. a5 Ba7 14. Qc2 $16) 13. Ng3 Qc7 $4
{the pressure is too much, Black crumbles} (13... Nf5 $142 $16) 14. Bxh7+ $1
$18 {touch・} Kxh7 (14... Kh8 15. Ng5 g6 16. Qg4 Rg8 17. Bxg8 Kxg8 18. Qh3 Kf8
19. Qh8+ Ng8 20. Nh7+ Ke7 21. Bg5+ f6 22. Bxf6+ Kf7 23. Qg7+ Ke8 24. Qxg8#) 15.
Ng5+ Kg8 16. Qh5 Re8 17. Qxf7+ Kh8 18. Nh5 Rg8 (18... Qxe5 {cannot change
destiny} 19. dxe5 Rg8 20. Nf6 Be8 21. Qxe8 gxf6 22. Qh5+ Kg7 23. Nxe6#) 19.
Qxe7 (19. Nf6 Be8 20. Qxe8 gxf6 21. Qh5+ Kg7 22. Nxe6#) 19... Be8 $18 20. Qxc7
Bxc7 21. Nf4 Bd7 (21... Nd7 $18 {is still a small chance}) 22. Ng6# 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "2.5"]
[White "Kikuchi, Akira"]
[Black "Aoki, Yasuhiro"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1718"]
[BlackElo "1665"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "84"]
[SourceVersionDate "2019.03.23"]

{A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems} 1. d4 Nf6 2. Nf3 g6
3. Bf4 Bg7 4. e3 d6 5. Nbd2 O-O 6. c3 c5 (6... Nbd7 7. Bc4 Qe8 8. O-O e5 9. Bg5
a6 10. a4 b6 11. Ne1 Bb7 12. f4 Nd5 13. Nc2 exd4 14. exd4 Ne3 15. Nxe3 Qxe3+
16. Rf2 h6 17. Bh4 Nf6 18. Bxf6 Bxf6 19. Qg4 d5 20. Bb3 c5 21. Nf3 {Nogueiras
Santiago,J (2570)-Jimenez Fraga,P (2402) Ciego de Avila 2010 1/2-1/2 (33)}) (
6... Nh5 7. Bg5 h6 8. Bh4 f5 9. Be2 g5 10. Bg3 Qe8 11. Ng1 Nf6 12. Qb3+ Kh8 13.
f4 g4 14. h3 Nh5 15. Nf1 e5 16. fxe5 Nxg3 17. Nxg3 dxe5 18. d5 f4 19. Ne4 Qg6
20. Nf2 gxh3 21. gxh3 {Draganic,S (2161)-Cop,T (2301) Grubisno Polje 2014 0-1 
(33)}) 7. Bd3 Nc6 8. Qe2 $146 (8. O-O cxd4 9. exd4 e5 10. Bg5 h6 11. Bxf6 Qxf6
12. d5 Nb8 13. c4 Na6 14. a3 Nc5 15. Ne4 Nxe4 16. Bxe4 Qd8 17. Nd2 Qb6 18. b4
Qd4 19. Qe2 f5 20. Bc2 b5 21. Rfd1 Qb6 22. cxb5 e4 {Brkic,A (2208)-Mamedov,R 
(2230) Oropesa del Mar 2000 1/2-1/2}) 8... a6 {Consolidates b5} 9. h3 {
Prevents intrusion on g4} b5 10. O-O c4 {Black threatens to win material: c4xd3
} 11. Bc2 d5 (11... Re8 12. a4 Bb7 13. axb5 axb5 14. Rfd1 $11) 12. e4 $14 dxe4
13. Nxe4 {White has an active position} Nd5 {Black threatens to win material:
Nd5xf4} 14. Bg3 Nb6 (14... Bf5 15. Rfe1 $14) 15. a3 (15. Nc5 Nd5 $16) 15... Bf5
$14 16. Rad1 Bxe4 17. Bxe4 Nd5 {The knight is not easily driven from d5} 18.
Rfe1 e6 {Covers d5+f5} 19. Ne5 {White threatens to win material: Ne5xc6} Qc8 (
19... Rc8 20. a4 $14) 20. Bf3 (20. Bxd5 exd5 21. Qf3 Nxe5 22. dxe5 Re8 $16)
20... Ra7 21. Qd2 Nxe5 22. Bxe5 Rd7 23. Bxg7 Kxg7 {Black king safety dropped}
24. Qe2 Kg8 {Black king safety improved} 25. Qe5 Qc7 26. Qxc7 Rxc7 27. Bxd5
exd5 {A double rook endgame occured.} 28. Re5 {White threatens to win material:
Re5xd5} Rd8 29. Rde1 Kf8 30. f4 Rc6 31. Kf2 Rdd6 32. Kf3 a5 33. Re8+ Kg7 34.
Rb8 Rb6 35. Rxb6 {White forks: b5+d6} Rxb6 36. Re5 {White threatens to win
material: Re5xd5} Rd6 37. Re1 h5 (37... Rb6 38. f5 $11) 38. g4 $14 Kf6 (38...
b4 39. axb4 axb4 40. cxb4 hxg4+ 41. hxg4 $11) 39. g5+ Kg7 40. h4 (40. Re5 $142
$5 $16) 40... Re6 $11 41. Rxe6 fxe6 {A pawn endgame occured} 42. Ke3 a4 1/2-1/2

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "2.6"]
[White "Kobayashi, Katsuhiko"]
[Black "Koyahata, Taku"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1564"]
[BlackElo "1401"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "68"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] A00: Irregular Openings} 1. a4 e5 2. e4 Nf6 3. Nc3 Bc5 $146 (3...
Bb4 4. Bc4 O-O 5. d3 d5 6. exd5 c6 7. dxc6 Nxc6 8. Nf3 Bg4 9. h3 Bxf3 10. Qxf3
Nd4 11. Qd1 {1/2-1/2 (11) Nirav Y,R (2255)-Suvrajit,S (2205) Kolkata 1996}) (
3... Nc6 4. Nf3 Bb4 5. Bb5 O-O 6. O-O d6 7. d3 Bg4 8. Ne2 a6 9. Bxc6 bxc6 10.
Ng3 Nh5 11. h3 Nxg3 12. fxg3 Bd7 13. g4 Bc5+ 14. Kh1 Qe7 15. Qe1 f6 16. Nh4 g6
17. Bh6 Rf7 18. Rb1 {Carlsen,M (2837)-Radjabov,T (2788) Astana 2012 1-0 (32)})
4. Nf3 Nc6 5. Bb5 d6 6. Bxc6+ bxc6 {Black has the pair of bishops} 7. O-O O-O
8. d3 h6 {Controls g5} 9. Bd2 Bg4 10. Rb1 Rb8 11. h3 Bh5 12. g4 $2 (12. Ne2
Bxf3 13. gxf3 d5 $11) 12... Bg6 $4 {Black has let it slip away} (12... Nxg4
$142 {and the scales tip in favour of Black} 13. Qe1 f5 $19) 13. Ne2 $11 Nh7 $4
{there were better ways to keep up the pressure} (13... a6 $142 $11 {is a
viable option}) 14. b4 $18 Bd4 15. Nexd4 exd4 16. Nxd4 Qd7 17. b5 cxb5 18. Nxb5
(18. axb5 $5 Ra8 19. Ra1 $18) 18... a6 19. Nd4 (19. Nc3 f6 $16) 19... Qxa4 (
19... c5 20. Ne2 $14) 20. Nf5 (20. Rxb8 $5 Rxb8 21. Qa1 Qxa1 22. Rxa1 $16)
20... Bxf5 $14 21. exf5 (21. gxf5 Rxb1 22. Qxb1 Nf6 $14) 21... f6 {Secures g5.}
(21... Rxb1 22. Qxb1 Qc6 23. Qb3 $11) 22. Ra1 {White threatens to win material:
Ra1xa4} Qc6 23. f3 Rb2 24. c3 (24. Rf2 $5 $11 {deserves consideration}) 24...
Ng5 $15 25. Bxg5 hxg5 26. Qc1 Rfb8 27. Qe3 $4 {strolling merrily down the path
to disaster} (27. Rf2 R2b3 $17) 27... Rc2 {Black threatens to win material:
Rc2xc3} (27... Re8 $142 {and the result of the game is clear: Black will win}
28. Rxa6 Qb5 $19) 28. Qe6+ $2 (28. Rac1 $142 Rxc1 29. Rxc1 $17) 28... Kh7 $19
29. Qf7 $4 {simply worsens the situation} (29. Rf2 Qxc3 30. Rxc2 Qxc2 31. Qe1
$19) 29... Rbb2 30. Qg6+ (30. Ra2 {a fruitless try to alter the course of the
game} Rg2+ 31. Kh1 Rxa2 32. Qxa2 Rxa2 33. h4 Qxc3 34. hxg5 Qd2 35. g6+ Kh8 36.
Rf2 Qxf2 37. d4 Qg2#) 30... Kg8 31. Rfb1 (31. Qxg7+ {is no salvation} Kxg7 32.
Rf2 Rxf2 33. Re1 Rg2+ 34. Kh1 Rh2+ 35. Kg1 Rbg2+ 36. Kf1 Qxf3#) 31... Rg2+ (
31... Qb6+ 32. d4 Rxb1+ 33. Rxb1 Qxb1#) 32. Kh1 Rh2+ 33. Kg1 Rbg2+ 34. Kf1
Qxf3+ (34... Qxf3+ 35. Ke1 Rh1#) 0-1

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "2.7"]
[White "Ito, Katsuhide"]
[Black "Hakamada, Eiji"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1303"]
[BlackElo "1531"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "80"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8256] B07: Pirc Defence: Miscellaneous Systems} 1. e4 d6 2. d4 Nf6 3.
Nc3 e6 4. Be2 $146 (4. Nf3 Be7 (4... Nbd7 5. Bc4 Be7 6. O-O O-O 7. Re1 c6 8. a4
b6 9. Ba2 a6 10. Be3 Ng4 11. Bc1 Ngf6 12. Be3 Ng4 13. Bc1 {1/2-1/2 (13) Rizouk,
A (2539)-Campora,D (2488) Seville 2011}) 5. Bd3 O-O 6. h4 h5 7. Bf4 Nc6 8. Qd2
Ng4 9. Bg3 e5 10. dxe5 dxe5 11. Nd5 Bd6 12. O-O-O Be6 13. Ng5 Qd7 14. Nxe6 Qxe6
15. Qg5 f5 16. Bc4 Kh7 17. Qxh5+ Qh6+ 18. Qxh6+ Kxh6 {Sanduleac,V (2300)-Bobu,
A (2335) Bucharest 1994 1-0}) (4. Bg5 Be7 5. e5 Nfd7 6. h4 a6 7. Qg4 Bxg5 8.
hxg5 c5 9. g6 f5 10. Qg3 h6 11. O-O-O cxd4 12. Nce2 d3 13. Rxd3 Nc6 14. f4 Nc5
15. Rd1 O-O 16. Nf3 Ne4 17. Qe1 Qe8 18. Nh4 Ne7 {Kosanovic,G (2370)
-Stamenkovic,Z (2405) Becici 1994 1/2-1/2 (48)}) (4. Be3 a6 5. a4 d5 6. e5 Nfd7
7. f4 c5 8. Nf3 Nc6 9. Qd2 Qb6 10. b3 cxd4 11. Nxd4 Bb4 12. a5 Qc7 13. Be2 Bxa5
14. Nxc6 Bxc3 15. Qxc3 bxc6 16. Qa5 Qxa5+ 17. Rxa5 f6 18. exf6 gxf6 {Janturin,
A (2241)-Tkachenko,E (2186) Moscow 2000 1-0 (33)}) 4... Be7 5. Nf3 O-O 6. O-O
c5 7. Be3 Nc6 8. Qd2 (8. d5 exd5 9. exd5 Ne5 $14) 8... b6 {Black has a cramped
position} (8... e5 9. dxe5 dxe5 10. Qxd8 Rxd8 11. Rfd1 $11) 9. Rad1 (9. d5 exd5
10. exd5 Ne5 $14) 9... Bb7 $11 10. d5 exd5 11. exd5 Nb4 {Black threatens to
win material: Nb4xd5} 12. Nh4 (12. Bc4 b5 13. Bxb5 Nbxd5 14. Nxd5 Nxd5 $11)
12... Nfxd5 13. Nf5 Bf6 14. Bf3 (14. Nb5 $5 $11) 14... Nxe3 (14... Nxc3 $5 15.
Bxb7 Nxd1 16. Rxd1 Qd7 17. Bxa8 Qxf5 $17) 15. fxe3 $15 {[%cal Rd2d6,Rf5d6,
Gd8d6] The backward pawn on d6 becomes a target} Bxf3 16. Rxf3 Be5 17. Ne4 {
[%cal Rd2d6,Re4d6,Rf5d6,Gd8d6,Ge5d6] Increases the pressure on the backward
pawn. White threatens to win material: Ne4xd6} Qc7 18. Nfxd6 (18. c3 $142 $5 {
is interesting} Nc6 19. Qd5 $15) 18... Rad8 $17 19. c3 (19. a3 Nc6 20. Rf5 Rd7
$19) 19... Bxd6 (19... Nc6 $142 $5 $19) 20. Nxd6 $17 Nc6 21. e4 (21. Rf5 $5 Ne7
22. Rff1 $17) 21... Ne5 $17 22. Re3 (22. Rf2 Nc4 23. Nxc4 Rxd2 24. Rfxd2 Qf4
$17) 22... Nc4 $1 $19 {Deflection: d6} 23. Nxc4 Rxd2 24. Rxd2 Qf4 (24... Rd8
25. Rd5 $19) 25. Rf2 (25. Re1 $142 $17) 25... Qc7 26. e5 (26. Rd2 Rd8 27. Rd5
$17) 26... Rd8 $17 27. Nd6 f6 $1 {Deflection: d6} 28. exf6 $4 {the position
was bad, and this mistake simply hastens the end.} (28. Re1 $142 $17) 28...
Qxd6 $19 29. Re7 (29. f7+ {does not help much} Kf8 30. h3 b5 $19) 29... gxf6
30. Rfe2 (30. Re1 {does not solve anything} Qd5 31. a3 Qg5 $19) 30... Rd7 (
30... Qf4 {and Black can already relax} 31. Re8+ Rxe8 32. Rxe8+ Kf7 33. Re2 $19
) 31. Re8+ (31. R7e4 {is not much help} Qd1+ 32. Kf2 Rd5 33. Re8+ Kf7 34. R8e7+
Kg6 $19) 31... Kf7 32. Rh8 (32. Re1 {doesn't change the outcome of the game}
Qd2 33. R8e2 Qg5 $19) 32... Kg7 (32... Qd3 33. Kf2 Qf5+ 34. Ke1 Qb1+ 35. Kf2
Rd1 $19) 33. Ree8 (33. Rhe8 {is one last hope} Qd1+ 34. Kf2 $19) 33... Qd1+ 34.
Kf2 Qc2+ (34... Rd2+ 35. Kg3 Qf1 36. Reg8+ Kh6 37. Kh4 Qf4+ 38. Kh3 Rd3+ 39. g3
Qf5+ 40. Rg4 Rd2 41. Rxh7+ Kxh7 42. c4 Qf1+ 43. Kh4 Rxh2#) 35. Kg3 Kh6 (35...
Rd3+ 36. Kh4 Qf2+ 37. g3 Qxh2+ 38. Kg4 Qxg3+ 39. Kf5 Qg5+ 40. Ke4 Re3#) 36.
Rhg8 Rd3+ 37. Kg4 (37. Kf4 {doesn't improve anything} Qf2+ 38. Ke4 Qe3+ 39. Kf5
Rd5+ 40. Kg4 Qf2 41. Rd8 Rh5 42. Rg6+ Kxg6 43. Rg8+ Kh6 44. Rg6+ hxg6 45. b4
Rh4#) 37... Qxg2+ 38. Kf5 Qf3+ (38... Qd5+ 39. Kxf6 Rf3+ 40. Ke7 Rf7#) 39. Ke6
Re3+ (39... Qd5+ 40. Ke7 Re3+ 41. Kf8 Qd6+ 42. Kf7 Qd7+ 43. Kxf6 Qc6+ 44. Kf7
Qf3#) 40. Kf7 Rxe8 (40... Rxe8 41. Rxe8 Qh5+ 42. Kf8 Qxe8+ 43. Kxe8 f5 $19) (
40... Qh5+ 41. Rg6+ Qxg6+ 42. Kf8 Qxe8#) 0-1

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "2.8"]
[White "Sato, Yasuji"]
[Black "Takahashi, Ryunosuke"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1478"]
[BlackElo "1000"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "72"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] B22: Sicilian: 2 c3} 1. e4 c5 2. Nf3 Nc6 3. c3 d5 4. exd5 Qxd5 5.
Be2 Nf6 6. Na3 e5 (6... g6 7. d4 cxd4 8. Nb5 Qd7 9. Nbxd4 Bg7 10. O-O O-O 11.
Bg5 Qc7 12. Qc1 e5 13. Nxc6 bxc6 14. Bc4 Bg4 15. Nd2 h6 16. Bxf6 Bxf6 17. Ne4
Bg7 18. Qe3 Rae8 19. Qc5 Rd8 20. f3 Bf5 21. Rad1 {Schneider,I (2489)-Jones,G 
(2641) Germany 2012 1/2-1/2 (44)}) 7. Nb5 $146 (7. O-O e4 8. d4 Bg4 9. Nb5
O-O-O 10. Ng5 Bxe2 11. Qxe2 cxd4 {1/2-1/2 (11) Savic,M (2523)-Boskovic,D (2438)
Palic 2014}) (7. d3 Be7 8. O-O h6 9. Nc4 Be6 10. Re1 O-O-O 11. Qa4 g5 12. Bf1
Nd7 13. Nfd2 Ndb8 14. a3 f6 15. Ne3 Qd7 16. b4 a6 17. Rb1 Qc7 18. Qd1 Qd7 19.
Nec4 Qc7 20. b5 axb5 21. Rxb5 Na6 {Janev,E (2439)-Aghayev,M (2357) Bratto 2014
1-0 (41)}) 7... Qd8 {White has a cramped position. White's piece can't move: c1
} 8. O-O {White castles and improves king safety} a6 {Black threatens to win
material: a6xb5} 9. Na3 Be7 10. Bc4 (10. d3 $5 $15) 10... b5 $17 11. Bb3 (11.
Be2 O-O $17) 11... O-O (11... e4 12. Ne1 $17) 12. Re1 (12. d3 Bf5 13. Bc2 Qc7
$17) 12... Bg4 {White has a cramped position. White's piece can't move: c1} (
12... e4 $5 13. Ng5 Bg4 $19) 13. h3 {White threatens to win material: h3xg4}
Bh5 14. g4 (14. d3 Qc8 15. Bg5 Rd8 16. Bxf6 Bxf6 $17) 14... Nxg4 15. hxg4 Bxg4
{White wins a piece} 16. Kg2 (16. d3 Qd6 17. Re4 Qg6 $17) 16... Bh4 {Black has
a strong king attack} (16... c4 $5 17. Nxc4 bxc4 18. Bxc4 Qc8 $17) 17. Re4 (17.
d3 $142 $11) 17... Bxf3+ (17... Qd7 $142 $5 $15 {and Black is still in the game
}) 18. Qxf3 $16 c4 19. Nxc4 (19. Bc2 $5 Bg5 20. Rg4 $16) 19... bxc4 $11 20.
Bxc4 Bf6 21. d3 Na5 22. Bb3 Nxb3 23. axb3 a5 24. Raa4 (24. b4 Re8 $11) 24...
Qb6 (24... Qd6 25. Bd2 $15) 25. b4 $11 axb4 (25... Rfb8 26. bxa5 Rxa5 27. Be3
$14) 26. Rxa8 (26. Rexb4 $5 Qd8 27. Rxa8 Qxa8 28. Qxa8 Rxa8 29. Rb7 $16) 26...
Rxa8 $11 27. Rxb4 Qd8 28. Qe2 (28. Be3 Be7 29. Rb7 Ra6 $14) 28... Ra1 {Black
threatens to win material: Ra1xc1} 29. Bd2 {White king safety dropped} Be7 {
Black threatens to win material: Be7xb4} 30. Re4 Qd5 31. f3 (31. c4 Qa8 32. Qh5
f6 $11) 31... Bd6 $15 32. d4 (32. Rc4 $15) 32... f6 (32... f5 33. Re3 Rb1 34.
b4 $19) 33. c4 (33. dxe5 $5 Bxe5 34. Rd4 $11) 33... Qf7 $15 34. c5 {White
threatens to win material: c5xd6} Bc7 35. Bc3 $4 (35. Kf2 $142 {was possible}
Rh1 36. Rg4 $15) 35... f5 $19 36. Rxe5 (36. Kf2 {no good, but what else?} fxe4
37. Qxe4 exd4 38. Qxd4 $19) 36... Qg6+ (36... Qg6+ 37. Kh2 Qg1+ 38. Kh3 Qh1+
39. Kg3 g5 40. Be1 Rxe1 41. Qxe1 Qxe1+ 42. Kg2 Bxe5 43. dxe5 Qe2+ 44. Kg1 g4
45. fxg4 f4 46. g5 f3 47. b4 Qg2#) 0-1

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "3.1"]
[White "Drakakis, Athanasios"]
[Black "Sugimoto, Koichi"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "1836"]
[BlackElo "2013"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "93"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] D04: Colle System} 1. d4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Bd3 e6 (4...
Nbd7 5. e4 e5 6. Be2 dxe4 7. Nfd2 Bxe2 8. Qxe2 c6 9. Nc3 Bb4 10. O-O O-O 11.
dxe5 {1/2-1/2 (11) Mamedjarova,T (2277)-Georgiev,V (2567) Differdange 2007}) 5.
O-O (5. c4 c6 6. O-O Nbd7 7. Nbd2 Bd6 8. b3 O-O 9. Bb2 Re8 10. e4 dxe4 11. Nxe4
Nxe4 12. Bxe4 Nf6 13. Bc2 c5 14. h3 Bh5 15. dxc5 Bxc5 16. Qe2 e5 17. g4 Nxg4
18. hxg4 Bxg4 19. Rad1 Qf6 {Dimakiling,O (2447)-Yeoh,L (2204) Melaka 2012 1-0 
(49)}) 5... Bd6 6. Nbd2 c5 $146 (6... Nbd7 7. h3 (7. Qe1 O-O 8. b3 Bb4 9. Bb2
Ne4 10. Qc1 f5 11. a3 Bd6 12. Ne5 Nxe5 13. dxe5 Bc5 14. b4 Bb6 15. Nb3 Qg5 16.
f4 Qh6 17. Bxe4 fxe4 18. Bd4 g5 19. Qd2 gxf4 20. exf4 Rf7 21. Rf2 Rg7 {
Kamberovic,S (2294)-Begic,S (2297) Neum 2000 0-1 (40)}) 7... Bh5 8. c4 c5 9. b3
O-O 10. Bb2 cxd4 11. exd4 b6 12. Rc1 Rc8 13. Be2 Qe7 14. Ne5 Bxe2 15. Qxe2 Ba3
16. Ndf3 Bxb2 17. Qxb2 dxc4 18. bxc4 Rc7 19. Rc2 Rfc8 20. Rfc1 Nxe5 21. Nxe5 {
Hinteregger,A (2160)-Neihs,H (2180) Werfen 1998 1/2-1/2}) 7. c3 (7. dxc5 Bxc5
8. a3 O-O $11) 7... Nc6 8. Re1 O-O 9. Qa4 c4 {Black threatens to win material:
c4xd3} 10. Bb1 a6 {White's piece can't move: c1} 11. h3 {White threatens to
win material: h3xg4} Bh5 12. e4 b5 13. Qd1 dxe4 14. Nxe4 Nxe4 15. Bxe4 Rc8 16.
g4 (16. Qe2 Re8 $11) 16... Bg6 17. Bxg6 hxg6 18. Qe2 Qc7 19. Bd2 Ne7 20. Rad1
a5 21. a3 {Consolidates b4} Nd5 {[%cal Yb5b4] Black prepares the advance b4}
22. Ne5 Nb6 23. f4 Na4 {Black threatens to win material: Na4xb2} 24. Bc1 (24.
Rb1 Rfe8 $15) 24... b4 (24... Bxa3 25. Qg2 Bd6 26. h4 $17) 25. axb4 axb4 26.
Qc2 {White threatens to win material: Qc2xa4} b3 {Black threatens to win
material: b3xc2} 27. Qe2 Nb6 28. Be3 Ra8 29. d5 $2 (29. Rf1 $15) 29... exd5 $4
{a transit from better to worse.} (29... Nxd5 $142 $5 30. Nxc4 Nxe3 31. Nxe3
Bxf4 $19) 30. Bxb6 (30. Qf2 $5 {is worth looking at} Na4 31. Rxd5 Bxe5 32. fxe5
$11) 30... Qxb6+ $17 31. Kg2 Bxe5 32. Qxe5 Rad8 33. Kg3 Qc6 34. Qd4 f6 35. Re7
Qd6 $4 {throws away a nice position} (35... Rfe8 $142 36. Rde1 Rxe7 37. Rxe7
Rd7 $15) 36. Qa7 $18 Qxe7 37. Qxe7 Rfe8 38. Qc5 Re2 (38... Kh7 {does not help
much} 39. Kf3 $18) 39. Rxd5 Rde8 (39... Rxd5 {is not the saving move} 40. Qxd5+
Kh8 41. Qxc4 Rxb2 42. Qd3 $18) 40. Qxc4 R8e3+ 41. Kh4 g5+ (41... Kh7 {doesn't
get the bull off the ice} 42. Rd8 g5+ 43. fxg5 fxg5+ 44. Kxg5 $18) 42. fxg5 Kh7
(42... fxg5+ 43. Rxg5+ Re6 $18) 43. gxf6 Rh2 (43... gxf6 {does not win a prize}
44. Rh5+ Kg7 45. Qc8 Rxh3+ 46. Kxh3 Re3+ 47. Kh4 Re1 48. Qd7+ Kg8 49. Rb5 Rh1+
50. Kg3 Rg1+ 51. Kf2 Rf1+ 52. Kxf1 Kf8 53. Rb8#) 44. Rh5+ (44. fxg7 Rexh3+ 45.
Kg5 Rh5+ 46. gxh5 Rg2+ 47. Kh4 Rxg7 48. Qe4+ Kg8 49. Rd8+ Kf7 50. Qf5+ Ke7 51.
Rd7+ Ke8 52. Qe6+ Kf8 53. Rd8#) 44... Kg6 45. Rg5+ (45. Qf1 Rexh3+ 46. Qxh3
Rxh3+ 47. Kxh3 gxf6 48. Rf5 Kf7 49. g5 Ke6 50. Rxf6+ Ke5 51. Rf2 Ke6 52. g6 Kd6
53. g7 Kc6 54. g8=Q Kd7 55. Rf6 Ke7 56. Qg7+ Ke8 57. Rf8#) 45... Kh6 $18 46.
Rh5+ Kg6 47. Qf1 (47. Qf1 Rexh3+ 48. Qxh3 Rxh3+ 49. Kxh3 Kf7 50. fxg7 Kxg7 51.
Rf5 Kh6 52. Kg3 Kg7 53. c4 Kh6 54. Kh4 Kg6 55. Kh3 Kh6 56. c5 Kg7 57. c6 Kh8
58. Rf7 Kg8 59. Rd7 Kf8 60. c7 Ke8 61. c8=Q#) 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "3.2"]
[White "Sugano, Shun"]
[Black "Nishimori, Toshiyuki"]
[Result "1-0"]
[ECO "C54"]
[BlackElo "1811"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "45"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} 1. e4
e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 h6 6. h3 $146 {Covers g4} (6. Bb3 d6
7. O-O Bg4 8. h3 Bh5 9. Re1 Nh7 10. g4 Bg6 11. Nbd2 h5 12. Nf1 hxg4 13. hxg4
Nf6 14. N3h2 Qd7 15. Be3 Rh4 16. Bg5 Rh7 17. Bxf6 gxf6 18. Ng3 Bxf2+ 19. Kxf2
Rxh2+ 20. Kf3 Rh4 {Bores,R (2163)-Vltavsky,V (2177) Czechia 2012 0-1}) (6. Nbd2
d6 7. Bb3 (7. Nf1 O-O 8. Ng3 Ne7 9. O-O Bb6 10. a4 c6 11. b4 a5 12. h3 Ng6 13.
b5 d5 14. Bb3 Re8 15. Qc2 Nf4 16. d4 Nxe4 17. Nxe4 Bf5 18. Re1 Bxe4 19. Rxe4
dxe4 20. Nxe5 Rxe5 21. dxe5 Nd3 {Presalovic,M (2167)-Krajnak,J (2192) Slovakia
2008 1-0 (40)}) 7... O-O 8. h3 d5 (8... Be6 9. Bc2 d5 10. Qe2 d4 11. c4 a6 12.
Ba4 b5 13. cxb5 axb5 14. Bxb5 Nb4 15. Qd1 Bxa2 16. O-O c6 17. Bc4 Qe7 18. Bxa2
Nxa2 19. Nc4 Nxc1 20. Qxc1 Nd7 21. Qc2 Bb4 22. Ra4 Qc5 23. Rxa8 {Maiorov,O 
(2404)-Kuderin,D (2153) Anapa 2009 1/2-1/2 (48)}) 9. Qe2 Re8 10. Nf1 Be6 11.
Bc2 b5 {1/2-1/2 (11) Komliakov,V (2510)-Skatchkov,P (2415) Moscow 1998}) 6...
O-O 7. O-O d6 8. Bb3 a6 9. Be3 (9. Re1 b5 $11) 9... Bxe3 10. fxe3 {White has
new doubled pawns: e3+e4} Ne7 11. Nh4 Be6 12. Bc2 (12. Bxe6 fxe6 13. Nd2 Rb8
$11) 12... c6 13. d4 Qc7 14. Nd2 b5 15. Rxf6 gxf6 {Black wins the exchange} 16.
Qh5 Kh7 17. Rf1 Ng8 18. d5 {White threatens to win material: d5xe6} Bc8 19.
Ndf3 Ra7 (19... Qb6 $5 $11) 20. Nh2 $14 Qd8 (20... c5 21. Nf5 Bxf5 22. Qxf5+
Kh8 23. Ng4 $14) 21. Ng4 (21. dxc6 Rc7 $16) 21... Bxg4 22. Qxg4 (22. hxg4 b4
23. Nf5 bxc3 $18) 22... c5 $4 (22... Ne7 $142 $11 {had to be tried to avoid
defeat}) 23. Nf5 (23. Nf5 Re8 24. Qg7#) 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "3.3"]
[White "Hakamada, Eiji"]
[Black "Watanabe, Katsumi"]
[Result "0-1"]
[ECO "E94"]
[WhiteElo "1531"]
[BlackElo "1741"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "122"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8256] E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th
moves} 1. c4 Nf6 2. Nf3 g6 3. d4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5
8. d5 Nc5 9. Qc2 a5 10. Be3 b6 11. a3 {White has a very active position} (11.
Nd2 Ne8 12. a3 f5 13. f3 a4 14. Bxc5 bxc5 15. Nxa4 Bh6 16. Nc3 Qh4 17. Rfd1
Be3+ 18. Kh1 Nf6 19. Nf1 Bd4 20. exf5 gxf5 21. Nb5 Rf7 22. Nxd4 cxd4 23. Ng3 f4
24. Ne4 Nxe4 25. fxe4 Rf6 {Heissler,J (2435)-Werner,D (2420) Germany 1997 1-0 
(40)}) 11... Nh5 $146 (11... Ng4 12. Bxc5 bxc5 13. b4 (13. h3 Nh6 14. Qd2 f5
15. Qg5 Qe8 16. Qd2 f4 17. Nb5 Qe7 18. b4 Nf7 19. bxc5 dxc5 20. Rfd1 Nd6 21.
Nxd6 cxd6 22. Rab1 g5 23. Nh2 Qf7 24. Qc3 Kh8 25. Qf3 Bf6 26. Qh5 Qxh5 27. Bxh5
Ba6 {Russell,M (2200)-Aaron,A (2295) London 1978 0-1 (41)}) 13... cxb4 14. axb4
f5 15. Rxa5 Rxa5 16. bxa5 Nf6 17. Nd2 Bh6 18. Bd3 Nh5 19. Nf3 Nf4 20. c5 dxc5
21. a6 Qd6 22. Ra1 c6 23. Bc4 Kh8 24. dxc6 Qxc6 25. Nxe5 Qc7 26. Nf7+ {Csikos,
M (2184)-Kovacs,J (2205) Hungary 2005 1-0}) (11... a4 12. Nd2 Bd7 13. b4 axb3
14. Nxb3 Na4 15. Nb5 h5 16. h3 Nh7 17. Rac1 Bf6 18. Qd2 Bg5 19. f4 exf4 20.
Bxf4 Nc5 21. Nxc5 bxc5 22. Ra1 Bxb5 23. cxb5 Ra4 24. Bd3 Qe7 25. Bc2 Rd4 26.
Qf2 {Vokoun,J (2212)-Novikov,S (2545) Pardubice 2012 0-1 (32)}) 12. b4 Nb7 13.
Bg5 {White threatens to win material: Bg5xd8} f6 {Black threatens to win
material: f6xg5} 14. Bd2 f5 {Black has a cramped position} 15. Bd3 f4 {This
push gains space} (15... Nf4 16. h3 $14) 16. Kh1 (16. h3 Bd7 $14) 16... Bg4 (
16... g5 17. Qd1 $11) 17. Be2 $14 Qd7 {White has an active position} 18. Ng1 (
18. h3 Bxh3 19. bxa5 Nxa5 20. gxh3 Qxh3+ 21. Kg1 $11) 18... Bxe2 $11 {Black
forks: f1+c4} 19. Ncxe2 Rf7 (19... c6 20. Nc3 $11) 20. bxa5 (20. Nf3 Rff8 $14)
20... Nxa5 $11 21. Bxa5 bxa5 (21... Rxa5 22. Nc3 $11) 22. Nf3 h6 {Secures g5} (
22... Rff8 23. Rab1 $14) 23. c5 $14 {Nimzovich: attack the chain at its base}
g5 24. cxd6 (24. h3 g4 25. c6 Qc8 26. hxg4 Qxg4 $14) 24... cxd6 $11 25. Qc6 (
25. Rac1 Rb8 $14) 25... Raf8 $4 {gives the opponent new chances} (25... Qxc6
$142 26. dxc6 Rc7 $17) 26. Qxd7 $14 Rxd7 27. Rac1 (27. Nd2 g4 $14) 27... g4 {
Black threatens to win material: g4xf3} 28. Nh4 f3 (28... Rb8 29. Rc6 $11) 29.
gxf3 $14 gxf3 30. Nc3 (30. Ng3 Nf4 $14) 30... Nf4 (30... Rf4 31. Nf5 $15) 31.
Nf5 {'the knight is the knight!'} Rf6 (31... Rb8 32. Rb1 Rxb1 33. Rxb1 $11) 32.
Rg1 (32. Rce1 Ng2 33. Rb1 Nf4 $14) 32... Nd3 {Black has a mate threat} (32...
Rc7 33. Rb1 $11) 33. Rc2 {Black has a cramped position} (33. Rcf1 Kh7 $14)
33... Kh7 (33... Rc7 34. Rg3 Rxf5 35. exf5 Kf7 $17) 34. Nxg7 $4 {White loses
the upper hand} (34. Nb5 $142 $14 {and White has air to breath}) 34... Rxg7 $17
35. Rxg7+ Kxg7 36. Nd1 Nc5 37. Rc4 (37. Ne3 Nxe4 38. h3 Kg6 $19) 37... Rf4 $19
38. Nc3 Kg6 39. h3 Kh5 40. Kh2 Kh4 41. a4 (41. Nb5 Nxe4 42. Rc2 Kg5 $19) 41...
Rf6 42. Nb5 $4 {White falls apart} (42. Nd1 $142 Kg5 43. Nc3 $19) 42... Rg6 (
42... Nd3 $142 {makes it even easier for Black} 43. Nxd6 Rxd6 $19) 43. Nxd6 (
43. Rc3 Rg2+ 44. Kh1 Rxf2 45. Nxd6 Nxa4 46. Ra3 $19) 43... Nd3 (43... Rg2+ $142
{it becomes clear that Black will call all the shots} 44. Kh1 Nd3 $19) 44. Nf5+
$18 Kh5 45. Ng3+ Kg5 46. Rc2 (46. Rc3 $142 Nxf2 47. Rxf3 $18) 46... Kf4 $4 {
a blunder in a bad position} (46... Rb6 $142 $16) 47. Rd2 (47. Rc6 $142 {
secures the point} Rg8 48. Nh5+ Kg5 49. Nf6 $18) 47... Nxf2 $1 $19 {Remove
defender: f2} 48. d6 (48. Rxf2 Rxg3 {Remove defender}) 48... Rxg3 49. Rxf2 Rg8
50. d7 (50. Rb2 Kxe4 51. d7 Kf4 $19) 50... Kxe4 (50... Rd8 51. Kg1 Rxd7 52. Rf1
Rg7+ 53. Kf2 Rg2+ 54. Ke1 Ra2 55. Rxf3+ Kxf3 56. h4 Rc2 57. Kd1 Rc8 58. Kd2 Kf2
59. Kd3 Ke1 60. h5 Rc7 61. Ke3 Rc3#) 51. Rd2 (51. Rc2 Rd8 52. Kg3 Rxd7 53. Rc3
Rg7+ 54. Kf2 Rg2+ 55. Ke1 $19) 51... Rd8 52. Kg3 Ke3 53. Rd5 (53. Rd6 e4 54.
Kg4 f2 55. Rd1 Rxd7 56. Rxd7 f1=Q 57. Rd5 Qf4+ 58. Kh5 Qf7+ 59. Kxh6 Qxd5 60.
h4 Kd3 61. Kg6 e3 62. h5 Qc6+ 63. Kg5 Qc5+ 64. Kg6 e2 65. h6 Qd5 66. h7 e1=Q
67. h8=Q Qg1+ 68. Kf6 Qgg5#) 53... e4 54. h4 f2 55. Rf5 (55. Rd1 {doesn't
improve anything} Ke2 56. Rb1 Rxd7 57. h5 f1=Q 58. Rxf1 Kxf1 59. Kf4 Re7 60.
Ke3 Re8 61. Kd4 e3 62. Kd5 Rg8 63. Kd4 e2 64. Kc5 e1=Q 65. Kb6 Qe6+ 66. Kc7
Rg7+ 67. Kb8 Qe8#) 55... Rxd7 56. Kg2 (56. Kg4 {does not save the day} Ke2 57.
Kh5 f1=Q 58. Rxf1 Kxf1 59. Kxh6 e3 60. h5 e2 61. Kg6 e1=Q 62. Kf6 Qe7+ 63. Kf5
Rd5+ 64. Kg4 Rg5+ 65. Kh4 Qe5 66. h6 Qg3#) 56... Rd2 (56... Rg7+ 57. Kh3 Ke2
58. Rf4 f1=Q+ 59. Rxf1 Kxf1 60. h5 Kf2 61. Kh4 Kf3 62. Kh3 Rg2 63. Kh4 Rh2#)
57. Rb5 Ke2 58. Rb1 (58. Rf5 {doesn't change the outcome of the game} Ke1 59.
Kg3 e3 60. Rb5 f1=Q 61. Rb1+ Rd1 62. Rb2 e2 63. Rb3 h5 64. Ra3 Qf2+ 65. Kh3 Kf1
66. Rg3 Rd3 67. Rxd3 Qg2#) 58... e3 59. h5 Rd1 60. Rb2+ Kd3 61. Rb3+ (61. Rxf2
{does not improve anything} exf2 62. Kxf2 Rd2+ 63. Kf3 Ra2 64. Kf4 Kd4 65. Kf5
Kd5 66. Kf6 Re2 67. Kf7 Kd6 68. Kf6 Rf2+ 69. Kg6 Ke7 70. Kg7 Rg2+ 71. Kh8 Kf7
72. Kh7 Re2 73. Kh8 Re8+ 74. Kh7 Kf6 75. Kxh6 Rh8#) 61... Kc4 (61... Kc4 62.
Rxe3 f1=Q+ 63. Kg3 Qg1+ 64. Kf3 Rf1+ 65. Ke4 Qh1+ 66. Rf3 Qxf3+ 67. Ke5 Qd5#) (
61... Ke4 62. Kg3 f1=Q 63. Rxe3+ Kxe3 64. Kh4 Qf4+ 65. Kh3 Rh1+ 66. Kg2 Qf3#)
0-1

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "3.4"]
[White "Aoki, Yasuhiro"]
[Black "Manabe, Hiroaki"]
[Result "1-0"]
[ECO "A18"]
[WhiteElo "1665"]
[BlackElo "1723"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "55"]
[SourceVersionDate "2019.03.23"]

{A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4)} 1. c4 Nf6
2. Nc3 e6 3. e4 d5 4. e5 Nfd7 5. cxd5 Nxe5 6. dxe6 Bxe6 7. d4 Ng6 8. Nf3 $146 (
8. d5 Bc8 (8... Bd7 9. Bd3 Be7 10. Qh5 O-O 11. Nf3 Be8 12. O-O Nd7 13. Ne4 Nf6
14. Nxf6+ Bxf6 15. Re1 c6 16. Bd2 Qd6 17. Rad1 cxd5 18. Ng5 Bxg5 19. Bxg5 f6
20. Bd2 Bf7 21. Re3 Rfe8 22. Rh3 Nf8 23. Bxh7+ {Christiansen,L (2530)-Hebert,J
(2420) San Mateo 1989 1-0 (31)}) 9. Bb5+ (9. Nf3 Be7 10. Be2 (10. Be3 O-O 11.
Be2 c5 12. Qd2 Nd7 13. Rd1 b6 14. O-O Bb7 15. d6 Bf6 16. Ng5 Re8 17. Bf3 Bxf3
18. Nxf3 Ndf8 19. Qd5 Qd7 20. Rd2 Qe6 21. Rfd1 Rad8 22. a4 Ne5 23. Nxe5 Bxe5
24. Nb5 Qxd5 {Raupp,T (2275)-Glienke,M (2320) Germany 1986 0-1 (41)}) 10... O-O
11. O-O Nd7 12. Be3 Nf6 13. h3 a6 14. Qb3 Bd6 15. Rfd1 Re8 16. Bf1 h6 17. Rac1
Qe7 18. Re1 Ne5 19. Nd2 c6 20. Bd4 Qc7 21. Nde4 Nxe4 22. Nxe4 Bf8 23. Qg3 Kh8 {
Salanki,E (2265)-Karadzic,B (2330) Budapest 1986 1-0}) 9... Bd7 10. Qb3 Bd6 11.
Nf3 O-O 12. O-O Nh4 13. Be2 Na6 14. Ne4 Nxf3+ 15. Bxf3 Nc5 16. Nxc5 Bxc5 17.
Bf4 Bb6 18. Rac1 Rc8 19. Qc3 Re8 20. Rfe1 Rxe1+ 21. Rxe1 Qf8 22. b4 c6 {
Lizak,P (2401)-Brinovec,D (2201) Pula 2014 1/2-1/2 (57)}) 8... Be7 9. Bd3 O-O {
Black castles and improves king safety} 10. O-O c5 (10... c6 11. Re1 $11) 11.
dxc5 Bxc5 12. Ne4 (12. Ng5 Nd7 $16) 12... Nd7 (12... Bb6 13. b3 Qd7 14. Be2 $11
) 13. Bg5 {White threatens to win material: Bg5xd8} (13. Nfg5 $5 Bd5 14. Bb5
Bxe4 15. Nxe4 $16) 13... Be7 14. Be3 Nde5 15. Nxe5 Nxe5 16. Be2 f5 17. Nc5 {
White threatens to win material: Nc5xe6. White forks: e6+b7} Bd5 18. Bd4 b6 (
18... Bf6 19. Qd2 $11) 19. Bxe5 Bxc5 20. a3 {Prevents intrusion on b4} Re8 {
Black threatens to win material: Re8xe5} 21. Bc3 Rxe2 $2 (21... Rc8 $142 $11 {
would keep Black in the game}) 22. Qxe2 $16 Qg5 23. g3 Be4 $2 (23... Qg6 $5 $16
) 24. b4 (24. Rad1 $5 {and White can already relax} Rc8 $18) 24... Bf8 25. Bd2
(25. Qc4+ Kh8 26. f3 b5 $18) 25... Qf6 26. Rac1 Re8 $2 (26... Rd8 $5 27. Bf4 g5
$16) 27. Rc7 (27. f3 Bc6 28. Qc4+ Re6 $18) 27... Qe5 (27... Kh8 28. Qc4 $18)
28. Rxa7 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "3.5"]
[White "Koyahata, Taku"]
[Black "Kikuchi, Akira"]
[Result "1/2-1/2"]
[ECO "A51"]
[WhiteElo "1401"]
[BlackElo "1718"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "72"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] A51: Budapest Gambit, Fajarowicz Variation} 1. d4 Nf6 2. c4 e5 3.
d5 c6 (3... Bb4+ 4. Nd2 (4. Bd2 Bxd2+ 5. Nxd2 O-O 6. e4 d6 7. Bd3 a5 8. Ne2 Na6
9. O-O c6 10. Nc3 Nc5 11. Bc2 Bd7 12. Kh1 Qe7 13. Qe2 g6 14. f4 exf4 15. Rxf4
Nh5 16. Rf2 Qh4 17. Qe1 Rae8 18. Nf1 Qg5 {Dolezal,R (2429)-Charleshouse,G 
(2174) Teplice 2010 1/2-1/2 (32)}) 4... a5 5. g3 O-O 6. Bg2 Na6 7. Nh3 Re8 8.
O-O e4 9. Nb3 d6 10. a3 Bc5 11. Nxa5 c6 12. b4 cxd5 13. cxd5 Bb6 14. Nc4 Nxd5
15. Qxd5 Be6 16. Qb5 Bd4 17. Bg5 f6 18. Rad1 {Manolache,M (2501)-Vidal del Rio,
M (2178) Ourense 2006 1-0 (34)}) 4. Nc3 Bb4 $146 (4... cxd5 5. cxd5 d6 6. g3 g6
7. Bg2 Bg7 8. Nf3 O-O 9. O-O a6 10. a4 Nbd7 11. Nd2 Re8 12. a5 b5 13. axb6 Nxb6
14. Nb3 Qc7 15. Na5 Bd7 16. h3 Bb5 17. Re1 Nc4 18. Nxc4 Bxc4 19. Qa4 {
Hernandez,J (2300)-Remon,A (2200) Cienfuegos 1976 1-0}) 5. dxc6 Nxc6 6. Bd2 O-O
7. a3 (7. e3 Ba5 $15) 7... Bxc3 $17 8. Bxc3 d5 9. cxd5 Nxd5 10. Bd2 Bf5 11. e3
{White has a cramped position} Rc8 12. Bb5 {White is behind in development.} (
12. Ne2 Bd3 $17) 12... Qb6 13. Ba4 (13. Qb3 $5 Nf4 $1 {registering a claim to
victory} 14. Bc4 Nxg2+ 15. Kf1 Qxb3 16. Bxb3 $19) 13... Qxb2 $19 14. Ne2 Qb6 (
14... Rfd8 $142 $5 15. Qc1 Qb6 $19) 15. O-O Rfd8 16. Qe1 (16. Ng3 Nc3 $1 {
Deflection: d2} 17. Qf3 Nxa4 18. Nxf5 g6 $17) 16... Qa6 (16... Bd3 17. Bxc6
Qxc6 18. f3 $19) 17. Bb3 (17. Bxc6 Qxc6 18. f3 Qb6 $17) 17... Bd3 $19 18. Bd1
f5 19. f3 (19. a4 Qb6 $19) 19... Kh8 (19... Qb6 $142 $5 20. Rf2 Nxe3 $19) 20.
Rf2 $17 Qb6 21. Nc3 Nxc3 22. Bxc3 Qc7 (22... Qc5 23. Bb3 $17) 23. Bc2 (23. Bb3
Qe7 $15) 23... Bxc2 (23... Ne7 24. Ba5 b6 25. Bxd3 Rxd3 26. Rd2 $17) 24. Rxc2
Qf7 25. f4 (25. Rac1 Qe6 $17) 25... exf4 26. exf4 Re8 {Black threatens to win
material: Re8xe1} (26... Nd4 $142 27. Rd2 Re8 $17) 27. Qg3 $4 (27. Re2 Rxe2 28.
Qxe2 Qe7 $17) 27... Kg8 $4 {hands over the advantage to the opponent} (27...
Nd4 $142 $1 {and Black wins} 28. Bxd4 Rxc2 $19) 28. Rac1 Re7 29. Bb2 Rce8 30.
Rc5 g6 (30... Re3 $142 $5 31. Rxf5 Rxg3 32. Rxf7 Rxg2+ 33. Kxg2 Kxf7 $17) 31.
Qc3 $11 {White has a mate threat} Kf8 32. a4 Re4 {Black threatens to win
material: Re4xa4. Black forks: a4+f4} 33. Ba3 Kg8 34. Bb2 (34. Rxc6 bxc6 35.
Bb2 Kf8 $11) 34... Kf8 $4 {Black is ruining his position} (34... Nd4 $142 35.
Qxd4 Rxd4 36. Bxd4 Qd7 $17) 35. Ba3 $4 {White lets it slip away} (35. Rb5 Re3
36. Qh8+ Qg8 37. Qf6+ Qf7 38. Qxf7+ Kxf7 39. Rxb7+ R8e7 40. Rxe7+ Nxe7 $11)
35... Kg8 {Twofold repetition} 36. Bb2 Kf8 1/2-1/2

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "3.6"]
[White "Takeuchi, Hiroshi"]
[Black "Kobayashi, Katsuhiko"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "1276"]
[BlackElo "1564"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "125"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems} 1. d4 Nf6
2. Nf3 g6 3. Nc3 Bg7 4. Bf4 d6 5. e3 (5. Qd2 h6 6. h3 g5 7. Bg3 Bf5 8. e3 Ne4
9. Nxe4 Bxe4 10. Bd3 Bxd3 11. cxd3 Nd7 12. O-O e6 13. Rac1 O-O 14. a4 Nf6 15.
Qb4 b6 16. Rc6 a5 17. Qc4 Ne8 18. e4 Qe7 19. Re1 Rd8 {Prie,E (2529)-Vaisser,A 
(2515) Belfort 2010 1-0 (46)}) 5... O-O 6. Be2 Bg4 $146 (6... Nbd7 7. O-O Re8
8. h3 b6 9. Bc4 Bb7 10. Bh2 e5 11. dxe5 dxe5 12. Qe2 Ne4 13. Nxe4 Bxe4 14.
Bxf7+ Kxf7 15. Qc4+ Kf8 16. Qxe4 Nc5 17. Qc4 Qe7 18. Rad1 Bf6 19. Nd2 a5 20.
Ne4 Nxe4 21. Qxe4 {Sakhatova,E (2330)-Kim,O (2250) Yerevan 1996 1-0 (66)}) 7.
h3 {White threatens to win material: h3xg4} Bd7 8. Qd2 Nc6 9. O-O-O Nh5 10.
Rdg1 (10. Bg5 $5 $14 {has some apparent merit}) 10... Nxf4 $11 11. exf4 e5 12.
fxe5 dxe5 13. dxe5 Nxe5 14. Nxe5 Bxe5 15. Bc4 (15. f4 Bg7 $15) 15... g5 (15...
Bc6 16. Qxd8 Raxd8 17. f3 $17) 16. g3 {Controls f4} (16. Qd5 $142 Bxc3 17. bxc3
$11) 16... Bxc3 $4 {throwing away the advantage} (16... Bc6 17. Nd5 b5 $17) 17.
Qxc3 $16 Be6 18. f4 Bd5 (18... Bxc4 19. Qxc4 c6 20. Qc5 $16) 19. Bxd5 (19. Rd1
c6 $18) 19... Qxd5 $16 20. b3 f6 (20... Rad8 21. Rd1 Qf5 22. Kb2 $16) 21. Rd1
Qf7 22. Rhf1 h6 (22... Qg7 23. Rfe1 $16) 23. g4 (23. fxg5 hxg5 24. h4 Qg7 $18)
23... Qg7 24. Kb1 Rad8 25. Rxd8 Rxd8 26. fxg5 hxg5 (26... fxg5 $142 27. Qc4+
Kh8 $16) 27. Qxf6 $4 {simply marches past the door to victory.} (27. Rxf6 Rd1+
28. Kb2 Rd5 $16) 27... Qxf6 (27... Rd1+ $142 $1 {and Black wins} 28. Rxd1 Qxf6
$19) 28. Rxf6 $16 Rd1+ 29. Kb2 Kg7 30. Rf3 c5 $2 (30... Rd2 $142 $5 $16) 31.
Rf5 $18 Rh1 $2 (31... Kg6 32. Rxc5 Rd7 $18) 32. Rxg5+ Kf6 (32... Kh6 {does not
solve anything} 33. Rxc5 Rxh3 34. Rc7 $18) 33. Rxc5 Rxh3 34. Rc7 Rg3 (34... a5
{is no salvation} 35. Rxb7 Rh8 36. Ra7 $18) 35. Rxb7 a5 36. Rb6+ (36. Ra7 $142
{seems even better} Ke6 37. Rxa5 Rg2 $18) 36... Kg5 (36... Ke7 {cannot change
destiny} 37. Ra6 $18) 37. Rb5+ Kxg4 (37... Kf4 38. a4 Rxg4 39. Rxa5 Rg6 $18)
38. Rxa5 Kf4 39. Rc5 Ke4 40. a4 Kd4 41. Rc8 Rg7 (41... Rg6 {is not much help}
42. a5 Kd5 43. b4 $18) 42. Rc4+ Kd5 (42... Ke3 {is not the saving move} 43. b4
Ra7 44. a5 $18) 43. Ka3 Rb7 (43... Ra7 $18 {hoping against hope}) 44. a5 Ra7
45. Ka4 Ra6 (45... Ke5 {what else?} 46. b4 Ra8 $18) 46. Kb5 Ra8 47. a6 Kd6 48.
Ka5 Kd7 (48... Kd5 49. Kb6 Rb8+ 50. Kc7 Rg8 51. a7 Ke5 52. Kb7 Kd5 53. a8=Q
Rxa8 54. Kxa8 Ke5 55. Ka7 Kd5 56. Rc8 Ke5 57. b4 Ke6 58. b5 Kf7 59. b6 Kf6 60.
b7 Ke6 61. b8=Q Kd5 62. Qb7+ Ke6 63. Rf8 Kd6 64. Qe4 Kd7 65. Kb6 Kd6 66. Rd8#)
49. b4 Rh8 50. b5 Rc8 51. Rxc8 Kxc8 52. Kb6 (52. a7 $5 Kd7 53. b6 Ke8 54. a8=Q+
Kf7 55. b7 Kf6 56. b8=Q Kf5 57. Qf3+ Kg6 58. Qg8+ Kh6 59. Qh3#) 52... Kb8 53.
c4 Ka8 (53... Kc8 {doesn't change anything anymore} 54. a7 Kd7 55. c5 Ke6 56.
a8=Q Ke7 57. Qe4+ Kf7 58. Qf5+ Kg7 59. c6 Kh8 60. Qd7 Kg8 61. c7 Kh8 62. c8=R#)
54. c5 (54. Kc7 Ka7 55. b6+ Kxa6 56. b7 Ka5 57. b8=Q Ka4 58. Qb2 Ka5 59. Qb5#)
54... Kb8 55. c6 Ka8 56. Kc7 Ka7 57. b6+ Kxa6 58. b7 Ka5 (58... Kb5 {doesn't
get the bull off the ice} 59. b8=Q+ Kc5 60. Qb6+ Kc4 61. Qe3 Kb4 62. Kb6 Kc4
63. c7 Kd5 64. c8=Q Kd6 65. Qc6#) 59. b8=Q Ka4 60. Kd6 (60. Qb2 Ka5 61. Qb3 Ka6
62. Qb6#) 60... Ka3 61. Kc5 Ka2 62. Kc4 Ka1 63. Kc3 (63. Kc3 Ka2 64. Qb2#) 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.23"]
[Round "3.7"]
[White "Ito, Katsuhide"]
[Black "Sato, Yasuji"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "1303"]
[BlackElo "1478"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "64"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8256] C78: Ruy Lopez: Archangelsk and Mler Defences} 1. e4 e5 2. Nf3
Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 O-O 7. d4 exd4 (7... Bb6 8. Bg5 h6 9.
Bh4 d6 10. Qd3 Ne7 11. Nbd2 Ng6 12. Bg3 Nh5 13. Nc4 Ba7 14. Bb3 b5 15. Ne3 Nhf4
16. Qd2 Bb7 17. d5 Qf6 18. Kh1 Bc8 19. Ng1 h5 20. f3 Qg5 21. Rad1 h4 22. Bf2 {
Grabarczyk,B (2441)-Macieja,B (2629) Opole 2007 0-1 (40)}) 8. cxd4 Ba7 9. Re1
d6 $146 {Prevents intrusion on e5} (9... b5 10. Bb3 d6 11. h3 Na5 12. Bc2 Bb7
13. Bg5 h6 14. Bh4 Re8 {1/2-1/2 (14) Laszlo,J (2280)-Mester,G (2255) Debrecen
1994}) 10. h3 {Controls g4} d5 11. e5 {White gets more space} Ne4 12. Bc2 {
White threatens to win material: Bc2xe4} f5 {White has a new protected passed
pawn: e5} 13. Nc3 Be6 {Blocks the pawn on e5} 14. Bb3 Ne7 (14... h6 15. a3 $11)
15. Be3 (15. Nxe4 $5 fxe4 16. Ng5 $16) 15... c6 {Secures b5} 16. Ng5 {White
threatens to win material: Ng5xe6} (16. a4 h6 $11) 16... Qd7 (16... Nxg5 17.
Bxg5 f4 18. Qd2 $15) 17. Ne2 {White has an active position} (17. Nxe6 Qxe6 18.
Ne2 Ng6 $14) 17... Ng6 (17... f4 $5 18. Bxf4 Rxf4 19. Nxe6 Rxf2 $11) 18. Nxe6
$14 Qxe6 19. Nf4 (19. f3 $5 f4 20. fxe4 fxe3 21. Qd3 $14) 19... Nxf4 $11 20.
Bxf4 g5 (20... Qe7 21. Qd3 $11) 21. Bc1 (21. Bh2 Rae8 $16) 21... Qg6 22. f3 {
White threatens to win material: f3xe4} Ng3 23. Bc2 h6 (23... Qh6 $142 $14) 24.
e6 $4 {weakening the position} (24. Kh2 $142 Nh5 25. Rf1 $16) 24... Rae8 $17
25. f4 $2 (25. Be3 $142 $17) 25... Rxe6 $19 26. Be3 $2 (26. Kh2 Rxe1 27. Qxe1
$19) 26... Rfe8 27. Bf2 Rxe1+ 28. Bxe1 Bxd4+ $1 {Decoy: d4} 29. Bf2 (29. Qxd4
Ne2+ {Decoy Double attack}) 29... Bxf2+ 30. Kxf2 gxf4 31. Qd4 (31. Kg1 Ne2+ 32.
Kf1 f3 33. g4 Qd6 34. Be4 Qh2 35. Ke1 Nd4 36. Qd3 Rxe4+ 37. Qxe4 fxe4 38. Kf1
Qg2+ 39. Ke1 Qe2#) 31... Ne4+ (31... Re2+ 32. Kg1 f3 33. Qf2 Rxf2 34. Kxf2 Ne4+
35. Bxe4 Qxg2+ 36. Ke3 fxe4 37. h4 f2 38. Rc1 Qf3+ 39. Kd4 f1=Q 40. Rxf1 Qxf1
41. b3 b6 42. Ke5 e3 43. Kd6 e2 44. h5 e1=Q 45. Kxc6 Qb5+ 46. Kb7 Qe7+ 47. Kc8
Qbe8#) 32. Kg1 (32. Bxe4 fxe4 33. b3 e3+ 34. Kg1 Qg3 35. Qxf4 Qxf4 36. Rf1 Qh4
37. Kh1 e2 38. Rg1 e1=Q 39. b4 Qxg1+ 40. Kxg1 Qg3 41. Kh1 Re1#) 32... f3 (32...
f3 33. g4 Qd6 34. Kh1 Qg3 35. Qg1 Nf2+ 36. Qxf2 Qxf2 37. Rg1 Re1 38. gxf5+
Rxg1#) 0-1

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "4.1"]
[White "Sugano, Shun"]
[Black "Drakakis, Athanasios"]
[Result "1-0"]
[ECO "D03"]
[BlackElo "1836"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "105"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] D03: 1 d4 d5 2 Nf3 Nf6 3 Bg5, including Torre Attack with early ..
.d5} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nf6 5. c3 e6 (5... Nc6 6. Bf4 g6 7.
Be2 Bg7 8. O-O O-O 9. Nbd2 Nh5 10. Be3 Qd6 11. Re1 f5 12. Nb3 f4 13. Bd2 Kh8
14. Bd3 Bg4 15. Be2 Rae8 16. Ng5 Bxe2 17. Rxe2 e5 18. dxe5 Nxe5 19. Nd4 h6 20.
Ngf3 {Turov,M (2490)-Burmakin,V (2530) Moscow 1994 1/2-1/2 (42)}) 6. Bg5 $146 (
6. Bf4 Bd6 7. Bg3 O-O 8. Bd3 Nc6 9. Nbd2 Qc7 10. O-O Rb8 11. Re1 b5 12. b4 a5
13. a3 Bxg3 14. hxg3 a4 15. Qe2 Ba6 16. Rac1 Ne7 17. Ne5 Nd7 18. Ndf3 Nxe5 19.
dxe5 Rfc8 20. Nd4 Qb6 {Matjushin,G (2349)-Shkuran,D (2231) Evpatoria 2001 1-0 
(56)}) 6... Be7 7. Nbd2 O-O 8. Bd3 h6 {Black threatens to win material: h6xg5}
9. Bh4 b6 10. Qe2 a5 11. a4 Ba6 12. O-O Bxd3 13. Qxd3 Nbd7 14. Nb1 Ne4 15. Bxe7
{White forks: f8+d8} Qxe7 16. Nfd2 Ndf6 17. f3 {Covers g4} Nd6 18. Re1 Nd7 19.
Na3 Rfc8 20. Nb5 {A classical outpost} Nc4 21. Nxc4 Rxc4 22. b3 {White
threatens to win material: b3xc4} Rc6 23. Re2 Qf6 24. Rc1 Qf4 {Black threatens
to win material: Qf4xc1} 25. Qd2 Qh4 26. Qe1 Qg5 27. Rec2 e5 (27... Rd8 28. g3
$11) 28. Re2 $14 f6 29. Rcc2 Re8 30. c4 {White threatens to win material: c4xd5
} (30. Qd1 e4 31. c4 f5 $14) 30... Qg6 $14 31. Rc1 Qf7 32. Rc3 (32. Qd2 Rf8 $14
) 32... Kf8 (32... dxc4 33. bxc4 Qf8 34. d5 $11) 33. cxd5 Qxd5 34. Rxc6 Qxc6
35. Re3 Rd8 36. Qc3 (36. Rc3 Qd5 37. Rc4 exd4 38. Rxd4 Qc5 $11) 36... Qxc3 $11
37. Rxc3 exd4 38. Nxd4 Nc5 39. Rxc5 bxc5 40. Ne6+ {White forks: c5+d8} Ke7 41.
Nxd8 Kxd8 {A pawn endgame occured} 42. Kf2 Kc7 43. Ke3 Kc6 $2 (43... Kd6 44.
Ke4 Ke6 45. f4 f5+ 46. Kd3 $11) 44. Ke4 $14 f5+ 45. Kxf5 (45. Ke5 f4 46. g3
fxg3 47. hxg3 $16) 45... c4 $4 (45... Kd5 $142 $11 {was much better}) 46. bxc4
$18 Kc5 47. f4 (47. Kg6 h5 48. f4 $18) 47... Kxc4 48. Kg6 Kb4 49. Kxg7 Kxa4 50.
f5 Kb5 51. f6 a4 52. f7 a3 53. f8=Q (53. f8=Q a2 54. Qb8+ Ka6 55. Qa8+ Kb5 56.
Qxa2 h5 57. Qd5+ Kb4 58. h4 Ka4 59. Qe4+ Kb5 60. Kf6 Kc5 61. Ke7 Kb6 62. Qb4+
Kc6 63. Ke6 Kc7 64. Qb5 Kc8 65. Kd6 Kd8 66. Qb8#) 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "4.2"]
[White "Sugimoto, Koichi"]
[Black "Aoki"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "2013"]
[BlackElo "1665"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "69"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] E97: King's Indian: Classical Main Line (6...e5 7 0-0 Nc6): 8 Be3
and 8 d5 Ne7, not 9 Ne1} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6.
Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 a5 10. Ba3 axb4 11. Bxb4 Bd7 $146 (11... b6
12. a4 Bd7 (12... Ne8 13. Nb5 (13. a5 c5 14. dxc6 bxa5 (14... Nxc6 15. Ba3 Nxa5
16. Nb5 Nb7 17. Bb4 Rxa1 18. Qxa1 Nc5 19. Bxc5 bxc5 20. Qa8 Nc7 21. Qc6 Nxb5
22. cxb5 Qd7 23. Rd1 Rd8 24. Qb6 Bf6 25. Nd2 Qb7 26. Qxb7 Bxb7 27. Nc4 Bxe4 28.
Rxd6 Rxd6 29. Nxd6 {Nutu Gajic,D (2350)-Jelica,M (2165) Nova Gorica 1992 1/2-1/
2 (40)}) 15. c7 Qxc7 16. Nd5 Nxd5 17. cxd5 Nf6 18. Bd3 Bf5 19. Rc1 Qb8 20. Ba3
Bxe4 21. Bxe4 Nxe4 22. Rc6 a4 23. Nd2 Nxd2 24. Qxd2 Rd8 25. Rfc1 e4 26. Rc7 Qb3
27. Qf4 Qxd5 {Finegold,B (2490)-Har Zvi,R (2425) Groningen 1992 0-1 (40)})
13... f5 14. a5 (14. Nd2 Kh8 15. Bf3 Ng8 16. a5 bxa5 17. Rxa5 Rxa5 18. Bxa5
Ngf6 19. Qc2 Bd7 20. Rb1 Qa8 21. Bxc7 Nxc7 22. Nxc7 Qc8 23. Nb5 Qc5 24. Nb3 Qb6
25. Nc3 Rc8 26. c5 dxc5 27. Nd2 Qa6 28. Be2 c4 {Veingold,A (2425)-Maki,V (2420)
Finland 1996 1/2-1/2 (41)}) 14... fxe4 15. Nd2 c5 16. dxc6 Nxc6 17. Bc3 bxa5
18. Nxe4 Be6 19. Nexd6 Nxd6 20. Nxd6 Nd4 21. c5 Nb3 22. Bf3 Ra7 23. Bd5 Nxc5
24. Bxe6+ Nxe6 25. Qd5 Qe7 26. Bxe5 Bxe5 27. Qxe5 {Anand,V (2725)-Shirov,A 
(2690) Monte Carlo 1996 1/2-1/2 (48)}) 13. a5 bxa5 14. Bxa5 Ne8 15. Nd2 f5 16.
c5 dxc5 17. Nb3 c4 18. Nd2 Nd6 19. Nxc4 Nec8 20. Qb3 Ra7 21. Qb4 Nxc4 22. Bxc4
Nd6 23. Ra2 Kh8 24. Rfa1 Qg5 25. Qc5 Rfa8 26. Bxc7 {Panczyk,K (2380)-Nicevski,
R (2355) Polanica Zdroj 1982 0-1 (33)}) 12. c5 {White threatens to win
material: c5xd6} Ne8 13. a4 f5 {Black has a cramped position} 14. Ng5 fxe4 15.
Ncxe4 Nf5 16. Bg4 {White has a very active position} (16. Bc4 Nd4 $16) 16...
Nd4 {An ideal square for the black knight.} (16... Qe7 17. Re1 $14) 17. cxd6 (
17. Be6+ Kh8 $16) 17... cxd6 (17... Nxd6 $5 {must definitely be considered} 18.
Bxd7 Qxd7 $16) 18. Be6+ $16 Bxe6 19. Nxe6 Nxe6 20. dxe6 Rf4 21. Rb1 (21. Qd5
Qe7 22. a5 h6 $18) 21... Rxe4 22. e7 Qxe7 23. Qd5+ Kh8 (23... Qf7 $5 24. Qxe4
d5 $16) 24. Qxe4 Nf6 25. Qc2 Qd7 26. Rfd1 Bf8 $2 (26... d5 $5 $16) 27. a5 $18
Rc8 (27... Rd8 28. Ba3 $18) 28. Qb3 Rc6 $2 (28... Rc7 $142 $18) 29. Be1 Rc7 (
29... Qd8 $18 {cannot undo what has already been done}) 30. f3 (30. Rdc1 {
keeps an even firmer grip} Rxc1 31. Rxc1 h6 $18) 30... Nh5 $2 (30... Qe8 31.
Bh4 Nh5 32. Rdc1 $18) 31. g3 (31. Rdc1 $142 $18 {makes it even easier for White
}) 31... Qc6 $4 {terrible, but what else could Black do to save the game?} (
31... Ng7 32. Rdc1 Rxc1 33. Rxc1 $18) 32. Bf2 (32. Rdc1 $142 {and the rest is
a matter of technique} Qxc1 33. Rxc1 Rxc1 34. Qf7 $18) 32... Kg7 $6 {puts up
no fight} (32... Ng7 $18) 33. Qd5 Qc2 (33... Qa6 {a last effort to resist the
inevitable} 34. Rdc1 Rd7 $18) 34. Rxb7 Rxb7 (34... Nf6 {praying for a miracle}
35. Qd3 Qxf2+ 36. Kxf2 Rxb7 $18) 35. Qxb7+ (35. Qxb7+ Kf6 36. Re1 Nxg3 37. hxg3
$18) 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "4.3"]
[White "Watanabe, Katsumi"]
[Black "Takeuchi, Hiroshi"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "1741"]
[BlackElo "1276"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "63"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] C56: Two Knights: 4 d4 exd4 5 0-0 Nxe4} 1. e4 e5 2. Nf3 Nc6 3. Bc4
Bc5 4. O-O Nf6 5. c3 d6 6. d4 exd4 7. cxd4 Bb6 8. e5 (8. h3 O-O 9. d5 Ne5 10.
Nxe5 dxe5 11. Nc3 Ne8 12. Qe2 Nd6 13. Bd3 f5 14. exf5 Bxf5 15. Be3 e4 16. Bc2
Qh4 17. Bxb6 axb6 18. Qe3 Rae8 19. Rae1 b5 20. a3 Bg6 21. Qg3 Qf6 22. Bd1 h5 {
Iordachescu,V (2614)-Rapport,R (2680) Kozloduy 2013 1/2-1/2 (57)}) 8... dxe5 9.
dxe5 Qxd1 10. Rxd1 {Black king safety dropped} Ne4 $146 {Black threatens to
win material: Ne4xf2} (10... Ng4 11. h3 Nxf2 12. Rf1 Nd3+ 13. Kh2 Ndxe5 14. Re1
f6 15. Nxe5 fxe5 16. Bf4 Bd7 17. Bxe5 Nxe5 18. Rxe5+ Kd8 19. Nd2 c6 20. Re2 Re8
21. Rd1 Rxe2 22. Bxe2 Ke7 23. Nf3 Be6 24. a3 Rd8 25. Rxd8 {Meszaros,A (2267)
-Estrada Nieto,J (2249) Kecskemet 2013 0-1}) (10... Ng4 11. Rf1 Be6 12. Bxe6
fxe6 13. Bf4 $15) 11. Rf1 (11. Be3 Bxe3 12. fxe3 Be6 13. Bxe6 fxe6 $11) 11...
Bg4 $15 12. Bf4 (12. Bd5 Nc5 $15) 12... O-O (12... O-O-O 13. Nbd2 Nxd2 14. Nxd2
$17) 13. Nfd2 (13. Nc3 Nxc3 14. bxc3 h6 $15) 13... Nxd2 $17 14. Nxd2 Nd4 (14...
Rad8 15. Nb3 $17) 15. h3 {White threatens to win material: h3xg4} Be2 16. Rfc1
Bxc4 17. Rxc4 Ne2+ 18. Kf1 Nxf4 19. Rxf4 Rad8 {Black threatens to win material:
Rd8xd2} 20. Nc4 Rd4 (20... Rfe8 21. g3 $11) 21. Rxd4 Bxd4 22. Rd1 {White
threatens to win material: Rd1xd4} Bb6 (22... c5 $142 $5 $11 {is worthy of
consideration}) 23. Rd7 $16 Rc8 24. f4 g6 25. Ke2 Bg1 26. Ne3 Kf8 (26... Bxe3
27. Kxe3 b5 28. Ke4 $16) 27. Ng4 c5 $4 {Black crumbles in face of a dire
situation} (27... Bc5 $142 $16) 28. Nf6 (28. Nh6 $5 {and White can already
relax} Bh2 29. Kf3 g5 30. Rxf7+ Ke8 31. fxg5 Bxe5 32. Rxh7 Bxb2 33. Rxb7 Bc1
$18) 28... Kg7 29. g4 (29. Rxb7 $142 {seems even better} c4 30. Ne4 $18) 29...
c4 $4 {the final mistake, not that it matters anymore} (29... Bd4 30. g5 Rf8
31. Rxb7 h6 32. gxh6+ Kxh6 $18) 30. g5 c3 (30... Rf8 $18 {there is nothing
better in the position}) 31. e6 cxb2 (31... Rf8 {no good, but what else?} 32.
e7 Bc5 33. exf8=Q+ Kxf8 34. Rxb7 c2 $18) 32. Rxf7+ (32. Rxf7+ Kh8 33. Rxh7#)
1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "4.4"]
[White "Nishimori, Tosyiyuki"]
[Black "Koyahata, Taku"]
[Result "1-0"]
[ECO "B72"]
[WhiteElo "1811"]
[BlackElo "1401"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "37"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] B72: Sicilian Dragon: 6 Be3, lines with h3+Bc4 and sidelines} 1.
e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 O-O 8. Qd2
Re8 (8... a6 9. O-O-O b5 10. Bf3 b4 11. Nce2 Bb7 12. Qxb4 Qc8 13. e5 Nd5 14.
Qb3 dxe5 15. Bxd5 Bxd5 16. Qxd5 exd4 17. Bxd4 Nc6 18. Bxg7 Kxg7 19. Nd4 Nb4 20.
Qe5+ Kg8 21. a3 Nc6 22. Qe4 {1-0 (22) Vachier Lagrave,M (2703)-Edouard,R (2636)
Warsaw 2010}) (8... Ng4 9. Bxg4 Bxg4 10. f3 Bd7 11. h4 b5 12. h5 e6 13. O-O-O
Qf6 14. Bg5 Qe5 15. Bf4 Qxd4 16. Qxd4 Bxd4 17. Rxd4 e5 18. Rxd6 exf4 19. Nd5
Bc8 20. Nf6+ Kg7 21. hxg6 {1-0 (21) Li,R (2426)-Ramer,S (2218) Chicago 2015})
9. h4 $146 {Black has a cramped position} (9. Rd1 Bd7 10. O-O Nc6 11. h3 Rc8
12. Nb3 Be6 13. Qc1 a5 14. Bb5 Nd7 15. f4 Nb4 16. Nd4 Bc4 17. Bxc4 Rxc4 18. a3
Nc6 19. Ndb5 Qc8 20. Qd2 Nf6 21. Qd3 Rc5 22. Bxc5 dxc5 23. e5 Rd8 {Munoz Cruz,
J (2254)-Ruiz Sanchez,A (2229) Mancha Real 2001 1-0 (34)}) 9... Nc6 10. h5 Nxd4
(10... Ng4 11. hxg6 fxg6 12. Bxg4 Bxg4 13. f3 $14) 11. Bxd4 $16 e5 12. Be3 gxh5
13. Bg5 Be6 14. Rxh5 Qb6 (14... Rc8 15. Qe3 $16) 15. Bxf6 Bxf6 16. O-O-O Qxf2
$4 {shortens the misery for Black} (16... Bg7 $142 17. f3 h6 $16) 17. Rf1 $18
Qxg2 (17... Qd4 {does not win a prize} 18. Qh6 Bg7 19. Rg5 Qe3+ 20. Kb1 Qxg5
21. Qxg5 $18) 18. Rxf6 Qg1+ (18... Kh8 {there is nothing else anyway} 19. Rfh6
Qg7 $18) 19. Rf1 (19. Rf1 Qg6 20. Rg5 $18) 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "4.5"]
[White "Manabe, Hiroaki"]
[Black "Kikuchi, Akira"]
[Result "1-0"]
[ECO "B04"]
[WhiteElo "1723"]
[BlackElo "1718"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "73"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] B04: Alekhine's Defence: 4 Nf3} 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4.
Nf3 dxe5 5. dxe5 Bf5 6. Bc4 {White threatens to win material: Bc4xd5} (6. Nd4
Bg6 7. e6 c6 8. Bd3 Qd6 9. exf7+ Bxf7 10. O-O Nd7 11. Re1 Nc5 12. Na3 Qf6 13.
Nc4 Nxd3 14. Qxd3 Nb4 15. Qc3 Nxc2 16. Bg5 Qxd4 17. Qxd4 Nxd4 18. Nd6+ Kd7 19.
Nxf7 Rg8 20. Rad1 c5 {Martin Del Campo C,R (2465)-Garcia Martinez,S (2415)
Havana 1990 1-0 (39)}) 6... c6 $146 {Black is behind in developement. Black's
piece can't move: f8} (6... e6 7. Qe2 (7. Bg5 Qd7 8. Qe2 h6 9. Bd2 Nc6 10. Bb3
g5 11. h3 Bb4 12. Nc3 Nxc3 13. Bxc3 Bxc3+ 14. bxc3 g4 15. hxg4 Bxg4 16. Ba4 Qd5
17. Rd1 Bxf3 18. gxf3 Qc5 19. Qe3 Qa5 20. Bxc6+ bxc6 21. Qd4 Qd5 {Nicolini,A 
(2154)-Borik,J (2198) Slovakia 2012 1-0 (50)}) 7... c6 8. O-O Bg4 9. Bb3 Nd7
10. c4 Ne7 11. Bf4 Ng6 12. Bg3 Bxf3 13. Qxf3 Ndxe5 14. Qh5 Nd7 15. Nc3 {
1/2-1/2 (15) Stehno,P (2301)-Turner,J (2344) Marianske Lazne 2004}) 7. O-O e6 {
Consolidates d5} 8. Bb3 {White has an active position} Nd7 9. Nbd2 Qc7 10. Re1
Be7 11. Nf1 O-O-O 12. a4 (12. Bd2 Kb8 $15) 12... h5 (12... Nb4 $5 $17) 13. Bxd5
cxd5 14. c3 {Consolidates b4} Bg4 15. Qd4 (15. N1d2 Nxe5 {Deflection: f3} 16.
Rxe5 Qxe5 17. Nxe5 Bxd1 18. Nxf7 g5 $15) 15... Bxf3 $17 16. gxf3 Bc5 17. Qf4
Rdf8 18. b4 Be7 19. Qd4 {White threatens to win material: Qd4xa7} Kb8 20. Be3
Qb6 21. Nd2 Qxd4 {Black forks: c3+e5} 22. Bxd4 {The bishop likes it on d4} g5
23. a5 {White gains space} Rfg8 {[%cal Yg5g4] Black intends g4} 24. Reb1 (24.
Nb3 Nf8 $15) 24... g4 {Black wins space} 25. f4 h4 (25... Nf8 $5 $17) 26. c4
$11 dxc4 27. Nxc4 g3 28. Nd6 (28. Rd1 Rg4 29. Be3 Nf8 $16) 28... gxh2+ {
White is in double check} (28... f6 29. exf6 Bxf6 30. Rd1 $11) 29. Kxh2 $11
Bxd6 (29... Rg4 $5 {is noteworthy} 30. Be3 Bxd6 31. exd6 Nf6 $11) 30. exd6 $16
{White has a new passed pawn: d6. Black has a new passed pawn: h4} Rh5 31. Rg1
{White has a mate threat} Rc8 (31... Rd8 $14) 32. Rac1 (32. a6 $142 $5 Rb5 33.
axb7 Rxb7 34. Kh3 $16) 32... Rxc1 $11 33. Rxc1 {White has a king attack} Rd5 {
Black threatens to win material: Rd5xd4. Black forks: d4+d6} 34. Rg1 {White
has a mate threat} b6 {Black threatens to win material: b6xa5} 35. a6 {White
has a mate threat} (35. Be5 $142 bxa5 36. bxa5 Rxa5 37. Rg7 $11) 35... Ka8 $4 {
forfeits the clear win} (35... Rxd6 $142 {would hold out} 36. Rg8+ Kc7 $17) 36.
Rg8+ Nb8 37. Be5 (37. Be5 f6 38. Bxf6 Rd2 39. Be5 Rxf2+ 40. Kh3 Rf3+ 41. Kxh4
Rh3+ 42. Kxh3 b5 43. Rxb8+ Kxb8 44. d7+ Ka8 45. d8=Q#) 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "4.7"]
[White "Sato, Yasuji"]
[Black "Hakamada, Eiji"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1478"]
[BlackElo "1531"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "112"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} 1.
e4 c6 2. c3 d5 3. exd5 cxd5 4. Nf3 Nf6 5. d4 Nc6 6. Bb5 (6. Bf4 g6 7. Be2 Bg7
8. O-O O-O 9. Nbd2 Nh5 10. Be3 Qd6 11. Re1 f5 12. Nb3 f4 13. Bd2 Kh8 14. Bd3
Bg4 15. Be2 Rae8 16. Ng5 Bxe2 17. Rxe2 e5 18. dxe5 Nxe5 19. Nd4 h6 20. Ngf3
Nxf3+ {Turov,M (2490)-Burmakin,V (2530) Moscow 1994 1/2-1/2 (42)}) (6. Ne5 g6
7. Bb5 Bd7 8. Qb3 a6 9. Bd3 Na5 10. Qd1 Bg7 11. Nd2 O-O 12. h4 Nc6 13. f4 Bf5
14. Be2 h5 15. Nf1 Ne4 16. g4 hxg4 17. Bxg4 Qc8 18. Ne3 Bxg4 19. N5xg4 e6 20.
Qf3 f5 {Mona,K (2154)-Wageih,K (2316) Cairo 2014 0-1 (42)}) 6... a6 $146 {
Black threatens to win material: a6xb5} (6... Qb6 7. Qb3 Bd7 8. O-O e6 9. Bf4
Na5 10. Bxd7+ Nxd7 11. Qc2 Bd6 12. Bxd6 Qxd6 13. Nbd2 Rc8 14. Qd3 O-O 15. Ng5
Nf6 16. Rae1 Nc4 17. Nxc4 Rxc4 18. f4 g6 19. Qh3 Kg7 20. Re3 b5 21. Qh4 {
James,R (2225)-Arkell,K (2506) Paington 2008 0-1 (40)}) 7. Bd3 Bg4 8. h3 {
White threatens to win material: h3xg4} Bh5 9. O-O e6 {Secures f5} 10. Bg5 Be7
11. Nbd2 O-O 12. Qc2 Bg6 13. Bxg6 hxg6 14. Rfe1 Rc8 15. Qd3 Re8 16. Rac1 Qa5
17. a3 {Prevents intrusion on b4} Nh7 {Black threatens to win material: Nh7xg5}
18. Bf4 Qd8 19. Bg3 Bd6 20. Ne5 Nxe5 21. Bxe5 Be7 22. Nf3 Ng5 23. Nh2 Ne4 24.
f3 {White threatens to win material: f3xe4} Nd6 25. Ng4 Nc4 {Black threatens
to win material: Nc4xb2} 26. Rc2 Bd6 27. Bxd6 Nxd6 28. Rce2 Nc4 29. Ne3 Qd7 30.
Nxc4 dxc4 31. Qe4 Qb5 32. Qc2 Rcd8 33. Re5 {White threatens to win material:
Re5xb5} Rd5 34. f4 Red8 35. R1e2 Qb6 36. Kh2 Qc7 37. g3 b5 38. Qb1 Qb7 39. Qe1
a5 40. g4 b4 41. axb4 axb4 42. Rxd5 {White has a mate threat} Rxd5 43. Re5 Rxe5
44. dxe5 bxc3 45. bxc3 {A queen endgame occured.} Qf3 {Black threatens to win
material: Qf3xf4} 46. Qd2 Kh7 47. Qd4 {White threatens to win material: Qd4xc4}
(47. g5 $5 $11 {must be considered}) 47... Qd3 $15 48. Qf2 f6 (48... g5 $5 {
is worth consideration} 49. fxg5 Qxc3 50. Qxf7 Qd2+ 51. Kg1 Qxg5 52. Qxe6 c3
$15) 49. Qh4+ $11 Kg8 50. exf6 Qd2+ {Black forks: f4} 51. Kg1 Qxf4 52. fxg7 {
White has a mate threat} Kxg7 {Black has a new passed pawn: e6.} 53. Qe7+ {
White forks: e6} Qf7 $4 {a weak move, ruining a winning position} (53... Kh8
54. Qe8+ Kg7 55. Qe7+ Kh8 56. Qe8+ Kg7 57. Qe7+ $11) 54. Qc5 {White threatens
to win material: Qc5xc4} (54. Qxf7+ $142 {and White has prevailed} Kxf7 55. h4
$18) 54... Qf4 $4 {ruins a very nice position} (54... Qf3 55. Qe7+ Kh6 56. Qh4+
Kg7 57. Qe7+ Kh6 58. Qh4+ Kg7 59. Qe7+ $11) 55. Qe7+ {Twofold repetition} Qf7
56. Qc5 Qf4 1/2-1/2

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "5.1"]
[White "Sugimoto, Koichi"]
[Black "Sugano, Shun"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "2013"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "45"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] D53: Queen's Gambit Declined: 4 Bg5 Be7: Early deviations} 1. d4
d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Be7 5. Nc3 c6 6. e3 Nbd7 7. Rc1 a6 (7... h6 8.
Bf4 O-O 9. a3 Nh5 10. Be5 Nhf6 11. Bg3 Nh5 12. Bd3 dxc4 13. Bxc4 Nxg3 14. hxg3
c5 15. O-O a6 16. Ba2 b5 17. dxc5 Nxc5 18. b4 Nd7 19. Nd4 Nf6 20. Qf3 Bd7 21.
Ne4 a5 22. Rfd1 {Vitiugov,N (2617)-Roiz,M (2659) Dagomys 2008 1-0 (61)}) (7...
Nf8 8. Bd3 Ng6 9. Qe2 dxc4 10. Bxc4 h6 11. Bxf6 Bxf6 12. O-O O-O 13. Bd3 Nh4
14. Ne4 Ng6 15. Nxf6+ Qxf6 16. Rfd1 e5 17. Bxg6 Qxg6 18. Nxe5 Qe6 19. a3 Qd6
20. Nd3 Re8 21. Qf3 Be6 22. Nc5 {Cramling,P (2513)-Johansen,P (2161) Vasteras
2015 1-0 (54)}) 8. c5 b6 $146 (8... Ne4 9. Nxe4 dxe4 10. Bxe7 Qxe7 11. Nd2 f5
12. Qh5+ Qf7 13. Qxf7+ Kxf7 14. Bc4 Kf6 15. f4 exf3 16. Nxf3 e5 17. O-O g6 18.
h4 Re8 19. Rfd1 e4 20. Ng5 Re7 21. b4 h6 22. Nh3 g5 23. hxg5+ {Adler,J (2255)
-Hess,R (2330) Germany 1992 1/2-1/2 (45)}) 9. cxb6 Qxb6 10. Qc2 h6 {Black
threatens to win material: h6xg5} 11. Bh4 O-O 12. Be2 Rb8 (12... Bb7 13. Ne5
Qd8 14. Qb3 Nxe5 15. Qxb7 $11) 13. Rb1 (13. O-O $5 $14) 13... c5 $11 14. dxc5
Bxc5 15. O-O Bd6 16. Rfc1 Bb7 17. Na4 {White threatens to win material: Na4xb6}
Qa7 18. Qd3 Rfc8 19. Bd1 (19. Nd4 Kh8 $11) 19... Ne4 20. Bc2 Rc7 21. Nd2 Nxd2
$4 {ruins a clearly superior position} (21... Ne5 $142 {the only rescuing move}
22. Qe2 Rbc8 23. Nxe4 dxe4 $15) 22. Qh7+ Kf8 23. Qh8# 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "5.2"]
[White "Drakakis, Athanasios"]
[Black "Watanabe, Katsumi"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1836"]
[BlackElo "1741"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "45"]
[SourceVersionDate "2019.03.23"]

{[%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 g6 4. Nbd2 Bg7 5. e3 O-O 6. Bd3 Nbd7 (6...
Nh5 7. Bg5 Nc6 8. c3 Qd6 9. O-O h6 10. Bh4 e5 11. dxe5 Nxe5 12. Be2 Nd7 13. Nd4
Nhf6 14. Bg3 Qb6 15. Qb3 c6 16. c4 Ne4 17. N2f3 dxc4 18. Bxc4 Qxb3 19. axb3
Nxg3 20. hxg3 Nb6 21. Be2 {Egeli,P (2330)-Stefansson,H (2540) Antwerp 1998 0-1
(35)}) 7. O-O (7. h3 Re8 8. Bh2 b6 9. O-O Bb7 10. Ne5 Nxe5 11. Bxe5 Bh6 12. a4
Nd7 13. a5 Nxe5 14. dxe5 a6 15. axb6 c5 16. c4 d4 17. exd4 Qxd4 18. Nb3 Qxe5
19. Na5 Rab8 20. Re1 Qd6 21. Qb3 Bd2 {Stripunsky,A (2549)-Vibbert,S (2299)
Arlington 2013 1-0 (43)}) 7... c5 $146 (7... Nh5 8. Bg5 h6 9. Bh4 Ndf6 (9... g5
10. Nxg5 Nhf6 11. Ngf3 c6 12. c4 e6 13. Ne5 Qb6 14. Nxd7 Bxd7 15. Qc2 c5 16.
dxc5 Qxc5 17. Nb3 Qb4 18. Qd2 Qxd2 19. Nxd2 dxc4 20. Nxc4 Nd5 21. Rad1 Bb5 22.
b3 Nb4 23. Be7 Nxd3 24. Bxf8 {Najjar,A (2311)-Aboudi,M (2191) Beirut 2000 1-0})
10. Ne5 g5 11. Bg3 Nxg3 12. fxg3 Nd7 13. Nxd7 Bxd7 14. c3 f5 15. Rf2 c6 16. Qc2
e6 17. g4 fxg4 18. Raf1 Qe7 19. Bh7+ Kh8 20. Bg6 Rxf2 21. Rxf2 Rf8 22. Nf1 {
Klemanic,E (2215)-Gazik,I (2410) Slovakia 1994 0-1 (45)}) (7... b6 8. c3 Bb7 9.
Qe2 Re8 10. Ba6 Qc8 11. Bxb7 Qxb7 12. Ne5 c5 {1/2-1/2 (12) Kaliberda,V (2285)
-Yuferev,O (2353) Ekaterinburg 2010}) 8. c3 c4 {Black gains space} 9. Bc2 b5 (
9... Nh5 10. Bg5 $11) 10. a3 (10. a4 bxa4 11. Bxa4 Bb7 $14) 10... Bb7 11. Re1
a5 12. h3 {Covers g4} Qb6 13. e4 dxe4 14. Nxe4 e6 15. Qe2 Bd5 16. Nxf6+ Nxf6
17. Ne5 Qb7 18. f3 {Controls e4} Nh5 {Black threatens to win material: Nh5xf4}
19. Bh2 Bh6 20. Ng4 Bf4 $4 {forfeits the advantage} (20... Bg5 $142 $11 {
was necessary}) 21. Bxf4 $18 Nxf4 22. Qe5 Nh5 (22... f6 {otherwise it's
curtains at once} 23. Qxf4 Kg7 $18) 23. Nh6# 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "5.3"]
[White "Aoki, Yasuhiro"]
[Black "Nishimori, Toshiyuki"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "1665"]
[BlackElo "1811"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "110"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] A29: English Opening: Four Knights Variation with 4 g3} 1. c4 Nf6
2. Nc3 e5 3. Nf3 Nc6 4. g3 d6 5. Bg2 Be7 6. O-O O-O 7. d3 Rb8 $146 (7... a5 8.
a3 h6 9. Rb1 Be6 10. b4 axb4 11. axb4 Qd7 12. e4 Bh3 13. b5 Nd8 14. Nh4 Bxg2
15. Kxg2 Ne6 16. Nf5 Kh7 17. Be3 Ra3 18. Qc1 Rfa8 19. Nd5 Nxd5 20. cxd5 Nc5 21.
Bxc5 dxc5 22. Qe3 {Zaitsev,V (2408)-Potapov,A (2293) chessassistantclub.com
INT 2004 1/2-1/2 (35)}) (7... Be6 8. Ng5 Nd7 9. Nxe6 fxe6 10. Rb1 Rb8 11. b4
Nd4 12. e3 Nf5 13. Ne2 Bf6 14. d4 exd4 15. e4 Ne7 16. Nxd4 Bxd4 17. Qxd4 Nc6
18. Qc3 Qf6 19. Qxf6 Rxf6 20. f4 e5 21. Be3 a5 22. Bh3 {Von Herman,U (2416)
-Kevorkov,A (2277) Germany 2013 1-0 (45)}) (7... Ne8 8. Rb1 a5 9. a3 Be6 10. b4
axb4 11. axb4 f5 12. b5 Na5 13. Nd2 Ra7 14. Nb3 c5 15. Nxa5 Qxa5 16. b6 Ra6 17.
Rb5 Qxc3 18. Bb2 Qb4 19. Rxb4 cxb4 20. Bxb7 Rxb6 21. Bg2 Nf6 22. Qa4 {Sorensen,
T (2275)-Hoiberg,N (2180) Aarhus 1986 1-0 (35)}) (7... Bg4 8. h3 Bxf3 9. Bxf3
Qd7 10. Bg2 Rab8 11. f4 a6 12. f5 h6 13. g4 Nh7 14. Nd5 Bg5 15. Bxg5 hxg5 16.
f6 gxf6 17. Be4 Qd8 18. Bxh7+ Kxh7 19. Nxf6+ Kg6 20. d4 Rh8 21. Nh5 Rxh5 22.
gxh5+ {Gusev,Y (2305)-Abzirko,N (2225) Ozery 1997 1-0 (35)}) 8. a3 {Controls b4
} h6 {Consolidates g5} 9. b4 a6 {Covers b5} 10. Bb2 Be6 11. Rc1 Qd7 12. e4 Bh3
13. Nd5 {[%cal Yc4c5] White prepares c5} Bxg2 14. Nxe7+ (14. Kxg2 Ra8 $14)
14... Nxe7 $11 15. Kxg2 c6 16. c5 {White wins space} Ng6 17. cxd6 Qxd6 {
White has a new backward pawn: d3} 18. Re1 Nd7 (18... Rbd8 19. Re3 $11) 19. d4
$14 Rfe8 20. dxe5 Qxd1 21. Rcxd1 Ndxe5 22. Nxe5 Nxe5 23. Bxe5 Rxe5 {A double
rook endgame occured} 24. Rd7 Kf8 25. f4 {White threatens to win material:
f4xe5} Re7 26. Rd4 Rbe8 27. Kf3 f6 28. h4 h5 29. g4 hxg4+ 30. Kxg4 g6 31. Kf3
Kf7 32. Red1 Rh8 {Black threatens to win material: Rh8xh4} 33. Kg3 Rhe8 (33...
Rh5 34. R1d3 $11) 34. Rd7 $14 Ke6 (34... Rxd7 35. Rxd7+ Re7 36. Rxe7+ Kxe7 37.
Kf3 $18) 35. Rxe7+ (35. R1d6+ Kf7 $16) 35... Rxe7 36. a4 (36. Rd8 Rc7 $14)
36... b6 (36... Re8 37. a5 $11) 37. Kg4 {[%cal Yf4f5] White plans f5} (37. Rd8
a5 38. bxa5 bxa5 $16) 37... Rh7 (37... f5+ 38. Kg5 fxe4 39. Kxg6 $14) 38. f5+
$14 gxf5+ 39. exf5+ Ke5 40. Re1+ Kd5 41. Re6 {White threatens to win material:
Re6xf6} Rh6 (41... Rg7+ 42. Kf3 Rh7 43. Rxf6 Rxh4 44. b5 axb5 45. axb5 cxb5 46.
Rxb6 $11) 42. h5 (42. a5 $142 bxa5 43. bxa5 $14) 42... c5 $4 {with this move
Black loses his initiative} (42... a5 $142 {would bring relief} 43. bxa5 bxa5
$11) 43. Rxb6 $18 c4 (43... cxb4 44. Rxb4 Ke5 45. Rb7 $18) 44. b5 (44. Rxa6
$142 {might be the shorter path} Rh7 45. b5 $18) 44... axb5 45. Rxb5+ $4 {
allows the opponent back into the game.} (45. axb5 $142 {and White is on the
road to success} Kc5 46. Rb8 $18) 45... Kd4 $11 46. a5 Rh8 (46... c3 47. Rb4+
Kd3 48. Rb3 $11) 47. a6 {Is this a dangerous pawn?} (47. Rb6 $5 c3 48. Rxf6 $14
) 47... c3 $11 {Don't underestimate that pawn} 48. Rb1 c2 {Black has a mate
threat} 49. Rc1 {White threatens to win material: Rc1xc2} Kd3 50. a7 Kd2 51.
Rxc2+ $4 {instead of simply winning the game.} (51. Rh1 $142 {saving the game}
Ra8 52. h6 Rxa7 53. Kh5 $11) 51... Kxc2 52. h6 Kd3 53. Kh5 Ke4 54. Kg6 Ke5 55.
h7 Ra8 (55... Ra8 56. Kh5 Kxf5 57. Kh4 Ke4 58. Kh5 f5 59. Kg6 f4 60. Kg7 Rxa7+
61. Kg6 Rxh7 62. Kxh7 f3 63. Kg7 Ke5 64. Kh6 f2 65. Kg6 f1=Q 66. Kg7 Qf5 67.
Kh6 Qg4 68. Kh7 Kf6 69. Kh8 Qg7#) 0-1

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "5.4"]
[White "Hakamada, Eiji"]
[Black "Manabe, Hiroaki"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1531"]
[BlackElo "1723"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "70"]
[SourceVersionDate "2019.03.23"]

{C01: French: Exchange Variation} 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5.
Nc3 Bb4 6. Bd3 O-O 7. O-O Bg4 8. Bg5 c6 9. Re1 (9. h3 Bh5 10. Bf5 Qd6 11. Qd3
Bxc3 12. bxc3 Nbd7 13. Bxf6 Nxf6 14. Ne5 Bg6 15. Bxg6 hxg6 16. c4 c5 17. Qa3
Ne4 18. Rad1 cxd4 19. Qxd6 Nxd6 20. Rxd4 Nxc4 21. Nxc4 dxc4 22. Rb1 b6 23. Rxc4
Rac8 {Van den Doel,E (2528)-Vaganian,R (2617) Groningen 1999 1/2-1/2 (99)}) (9.
Ne2 Bxf3 10. gxf3 Nbd7 11. Ng3 Qc7 12. Kg2 Rfe8 13. Rh1 h6 14. Be3 Nf8 15. Qc1
Ng6 16. Nf5 Nh5 17. Rg1 Bd6 18. Bxh6 gxh6 19. Qxh6 Nhf4+ 20. Kh1 Bf8 21. Qh4
Bg7 22. Qg4 Nxd3 23. cxd3 Re2 {Unmack,C (2161)-Brynell,S (2489) Tylosand 2012
0-1 (60)}) 9... Nbd7 {White has an active position} 10. a3 $146 {White
threatens to win material: a3xb4} (10. h3 Bh5 11. g4 (11. Bf5 Qc7 12. Qd3 Bg6
13. Bxg6 hxg6 14. Re2 Rfe8 15. Rae1 Rxe2 16. Rxe2 Bd6 17. a3 a5 18. Bxf6 gxf6
19. h4 Kg7 20. g3 Rh8 21. Kg2 Nb6 22. Nd1 a4 23. Ne3 f5 24. Ng5 Be7 25. c3 f4 {
Fodre,S (2279)-Gara,G (2178) Hungary 2000 1-0 (48)}) 11... Bg6 12. Ne5 Bxd3 13.
Qxd3 Qc7 14. Qf5 Bxc3 15. bxc3 Nxe5 16. Rxe5 Ne4 17. Re7 Qd6 18. Rxb7 g6 19.
Qf4 Qxf4 20. Bxf4 Nxc3 21. Kf1 Rfe8 22. Rb3 Na4 23. Re1 Rxe1+ 24. Kxe1 Re8+ {
Le Borgne,P (2226)-Passager,J (2251) France 2004 1-0 (48)}) 10... Bd6 {White
has an active position} 11. h3 {White threatens to win material: h3xg4} Bh5 12.
Bf5 Qc7 13. Qd3 {White has a very active position} h6 {Black threatens to win
material: h6xg5} (13... Rfe8 14. Rab1 $11) 14. Bd2 (14. Bxf6 Nxf6 15. g4 Bg6
$11) 14... Nb6 (14... Bxf3 15. Qxf3 Rfe8 16. g3 $11) 15. g4 (15. Ne5 Nfd7 16.
Bf4 Bxe5 17. dxe5 f6 $14) 15... Bg6 $11 16. Bxg6 fxg6 17. Qxg6 {Black king
safety dropped} Nh7 {White has an active position} 18. Qe6+ Kh8 (18... Rf7 19.
Ne5 Bxe5 20. Qxe5 Qxe5 21. dxe5 $11) 19. Ne5 (19. Nh4 Rf7 20. b3 Nf8 $16) 19...
Bxe5 $14 20. Qxe5 Qxe5 21. Rxe5 {Black king safety improved} (21. dxe5 Ng5 22.
Bxg5 hxg5 $16) 21... Nc4 $11 22. Re2 Nxd2 23. Rxd2 Ng5 {Black threatens to win
material: Ng5xh3} 24. Kg2 Rae8 25. Rd3 Ne4 {[%cal Re4f2,Rf8f2,Gg2f2] Attacks
the backward pawn on f2} 26. Nxe4 Rxe4 27. c3 (27. Kf1 $142 $5 $14 {is an
interesting idea}) 27... Re2 $15 28. Rf3 Rxf3 29. Kxf3 Rxb2 30. a4 Kg8 (30...
Rb3 31. Kf4 $15) 31. Ra3 (31. a5 Kf7 $11) 31... Kf7 (31... b6 32. h4 $17) 32.
Kg3 (32. a5 Ke6 $11) 32... Kf6 (32... b6 33. f3 $17) 33. f4 (33. a5 h5 $11)
33... g6 (33... b6 34. f5 $17) 34. a5 $15 a6 35. h4 Rb1 1/2-1/2

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "5.5"]
[White "Kikuchi, Akira"]
[Black "Sato, Yasuji"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1718"]
[BlackElo "1478"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "53"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6
3 Bf4} 1. d4 d5 2. Nf3 Nc6 3. Bf4 Nf6 4. e3 Bg4 5. Nbd2 (5. Be2 e6 6. Nbd2 Bd6
7. Bxd6 cxd6 8. h3 Bh5 9. O-O O-O 10. c3 Rc8 11. Re1 Ne4 12. Nxe4 dxe4 13. Nd2
Bxe2 14. Qxe2 f5 15. f3 d5 16. fxe4 fxe4 17. Rf1 Qg5 18. Rxf8+ Rxf8 19. Rf1 Ne7
{Manakov,I (2345)-Starostits,I (2468) Schwaebisch Gmuend 2013 1/2-1/2}) 5... h6
$146 {Prevents intrusion on g5} (5... a6 6. h3 Bh5 7. Be2 e6 8. O-O Bd6 9. Ne5
Bxe2 10. Qxe2 Ne7 11. c4 c6 12. c5 Bc7 13. b4 Nd7 14. Nxd7 Qxd7 15. a4 O-O 16.
Nf3 f6 17. b5 Ng6 18. Bxc7 Qxc7 19. bxc6 bxc6 20. Rab1 {Dienavorian Lacherian,
M (2275)-Bademian Orchanian,J (2235) Uruguay 1983 0-1 (50)}) (5... e6 6. c3 Bd6
(6... a6 7. Qa4 Bd6 8. Bd3 O-O 9. Ne5 Bxe5 10. Bxe5 Nd7 11. Bg3 Bh5 12. O-O f5
13. c4 Nb6 14. Qc2 g5 15. Be5 Nb4 16. Qc3 Nxd3 17. Qxd3 f4 18. exf4 gxf4 19.
Qh3 Rf5 20. c5 Nd7 21. Bxf4 {Todorovic,B (2289)-Tasic,Z (2156) Pozarevac 2012
1-0 (46)}) 7. Qb3 Rb8 8. a4 O-O 9. Bd3 Re8 10. Bg5 h6 11. Bh4 g5 12. Bg3 Bxf3
13. Nxf3 e5 14. Bb5 exd4 15. Nxd4 Nxd4 16. cxd4 c6 17. Bxd6 Qxd6 18. Be2 Re7
19. O-O Ne4 20. Rad1 {Vlasov,I (2240)-Starkov,S (2207) Kemerovo 2014 1/2-1/2 
(45)}) 6. Be2 Nh5 7. Bg3 (7. Be5 e6 $14) 7... Nxg3 $11 8. hxg3 e6 9. c3 {
Secures b4} Bd6 10. Qc2 Bf5 11. Bd3 Bxd3 12. Qxd3 Qd7 13. O-O-O a5 14. e4 dxe4
{Black forks: d3+f3} 15. Nxe4 a4 (15... Be7 16. g4 $11) 16. Nxd6+ (16. d5 exd5
17. Qxd5 O-O-O $16) 16... cxd6 (16... Qxd6 $142 $5 {is an interesting
alternative} 17. d5 O-O-O $11) 17. d5 $16 a3 $4 {leads to further
unpleasantness} (17... exd5 $142 18. Rhe1+ Kd8 19. Qxd5 Kc7 $16) 18. dxc6 $18
axb2+ 19. Kxb2 Qxc6 20. Qxd6 Qb5+ 21. Qb4 Qa6 (21... Qxb4+ {cannot change what
is in store for ?} 22. cxb4 Ke7 23. Kb3 $18) 22. a3 f6 (22... Rc8 {what else?}
23. Rh4 b6 $18) 23. Rd6 Qe2+ 24. Rd2 Qa6 25. Rhd1 Kf7 (25... Qc6 {desperation}
26. Rd6 Qc8 $18) 26. Rd7+ Kg6 (26... Kg8 {doesn't get the cat off the tree} 27.
Rxg7+ $1 {Mate attack} Kxg7 28. Rd7+ Kg8 29. Qg4+ Kf8 30. Qg7+ Ke8 31. Qf7#)
27. Qg4+ (27. Qg4+ Kh7 28. Qxg7#) 1-0

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "5.6"]
[White "Koyahata, Taku"]
[Black "Takeuchi, Hiroshi"]
[Result "0-1"]
[ECO "E51"]
[WhiteElo "1401"]
[BlackElo "1276"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "66"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8256] E51: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5} 1. d4 d5 2. c4 e6
3. Nc3 Nf6 4. e3 Bb4 5. Bd2 O-O 6. Nf3 b6 7. a3 Be7 (7... Bxc3 8. Bxc3 Ba6 9.
Nd2 c5 10. dxc5 bxc5 11. Qf3 Nbd7 12. cxd5 Bb7 13. Qg3 exd5 14. Bb5 d4 15. exd4
Re8+ 16. Kf1 Nh5 17. Qd6 Qg5 18. d5 Nf4 19. g3 Nxd5 20. Bxd7 Rad8 21. h4 Qe7
22. Qxe7 {Kharlov,A (2627)-Milov,V (2626) Saint Vincent 2000 1-0 (42)}) 8. Be2
(8. Bd3 Bb7 9. O-O c5 10. cxd5 exd5 11. Qb1 Nbd7 12. Rd1 Re8 13. b4 c4 14. Bc2
Bd6 15. Be1 a6 16. Nd2 Rc8 17. Nf1 Nf8 18. f3 Ne6 19. Bh4 h6 20. Ra2 Rc7 21.
Qc1 g5 22. Bg3 Ng7 {Bykhovsky,A (2411)-Movsesian,S (2655) Teplice 2015 0-1 (55)
}) 8... c5 $146 (8... Bb7 9. O-O dxc4 (9... Nbd7 10. Rc1 c5 11. Qb3 dxc4 12.
Qxc4 Rc8 13. Rfd1 cxd4 14. Qxd4 Nc5 15. Qxd8 Rfxd8 16. Be1 Nb3 17. Rxd8+ Rxd8
18. Rd1 Rxd1 19. Bxd1 Nc5 {1/2-1/2 (19) Maki Uuro,M (2295)-Seppanen,A (2235)
Helsinki 1997}) 10. Bxc4 c5 11. Qe2 Nbd7 12. Rfd1 Qb8 13. Rac1 a6 14. Ba2 b5
15. Be1 cxd4 16. Nxd4 Nb6 17. h3 g6 {1/2-1/2 (17) Holemar,D (2326)-Lipka,J 
(2426) Austria 2008}) 9. O-O Bb7 10. dxc5 bxc5 11. Qc2 (11. cxd5 exd5 12. Qc2
Nbd7 $11) 11... d4 $15 12. exd4 cxd4 13. Nb5 (13. Na4 Be4 14. Bd3 Bxf3 15. gxf3
Nc6 $15) 13... Be4 {Black threatens to win material: Be4xc2} 14. Qb3 (14. Qa4
Nc6 15. Qa6 d3 $17) 14... Nc6 $17 15. Ng5 (15. Bb4 $5 Bxb4 16. axb4 $17) 15...
a6 $19 16. Nxe4 Nxe4 17. Bf3 $4 {leading to a quick end} (17. Rad1 $142 axb5
18. cxb5 Nxd2 19. Rxd2 $19) 17... Nxd2 18. Qd3 Nxf1 (18... Nxf3+ $142 {and
Black has it in the bag} 19. Qxf3 Ne5 20. Qe4 Nxc4 21. Nxd4 $19) 19. Bxc6 axb5
(19... Rc8 {and Black can already relax} 20. Be4 axb5 21. cxb5 $19) 20. Bxa8 (
20. cxb5 {a fruitless try to alter the course of the game} Nxh2 $1 {a
convincing end} 21. Kxh2 Qd6+ 22. Kg1 Rac8 $19) 20... Qxa8 (20... bxc4 $5 {
might be the shorter path} 21. Qxc4 Nxh2 22. Be4 $19) 21. cxb5 Rd8 (21... Nxh2
{keeps an even firmer grip} 22. Kxh2 Qd5 23. Rc1 $19) 22. Rxf1 (22. Kxf1 Qd5
$19) 22... Qd5 (22... Rd5 {seems even better} 23. b4 Qa4 24. Rc1 Qxb5 25. Qxb5
Rxb5 26. Rc4 $19) 23. Rc1 (23. f4 Rc8 $19) 23... Bd6 (23... e5 {makes it even
easier for Black} 24. Re1 Bd6 25. f3 $19) 24. a4 e5 25. f3 Re8 {[%cal Ye5e4]
Black prepares e4} (25... Qa2 26. b3 $19) 26. Qe4 (26. Rc6 Bb4 $19) 26... Qe6
27. Qc2 $2 (27. f4 $19) 27... Qh6 28. Qc6 Rf8 (28... Rd8 $142 $19 {and Black
can already relax}) 29. a5 (29. g3 Qe3+ 30. Kg2 $19) 29... e4 $1 {Deflection:
c1} 30. fxe4 (30. Qxe4 Qf4 {Decoy Double attack} (30... Bxh2+ {Discovered
attack}) (30... Qxc1+ {Deflection})) (30. fxe4 Bxh2+ {Discovered attack}) 30...
Bxh2+ 31. Kf2 Qe3+ 32. Kf1 d3 33. Re1 Qg1# (33... Qf4#) 0-1

[Event "HokkaidoCh2019"]
[Site "?"]
[Date "2019.03.24"]
[Round "5.7"]
[White "Kobayashi, Katsuhiko"]
[Black "Ito, Katsuhide"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "1564"]
[BlackElo "1303"]
[Annotator "Fritz 15 (30s)"]
[PlyCount "63"]
[SourceVersionDate "2019.03.23"]

{[%mdl 8192] B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7} 1. e4 c5
2. Nf3 Nc6 3. Bb5 d6 4. Bxc6+ bxc6 5. O-O d5 (5... g6 6. Re1 (6. d3 Bg7 7. Nbd2
e5 8. Nc4 Be6 9. c3 Nf6 10. Qa4 Qc7 11. Ng5 O-O 12. f4 Nd7 13. fxe5 Nxe5 14.
Nxe5 Bxe5 15. Nf3 Bg7 16. Be3 Rab8 17. Rf2 Rb5 18. Ng5 Rfb8 19. d4 cxd4 20.
Nxe6 fxe6 {Csolto,T (2154)-Najgebauer,S (2273) Slovakia 2014 0-1}) 6... Bg7 7.
c3 e5 8. d4 cxd4 9. cxd4 exd4 10. Nxd4 Ne7 11. Nc3 Bd7 12. Bf4 Nc8 13. e5 dxe5
14. Bxe5 O-O 15. Bxg7 Kxg7 16. Qf3 Qb6 17. Rad1 Rb8 18. Qf4 Rb7 19. Nb3 Bf5 20.
Rd2 {Nevednichy,V (2495)-Kupreichik,V (2560) Cetinje 1993 1-0 (44)}) 6. d3 Bg4
$146 (6... Nf6 7. Qe2 e6 8. b3 Be7 9. Bb2 O-O 10. Nbd2 Nd7 11. h3 Nb6 12. a4 a5
13. Ne5 Qc7 14. Rae1 f6 15. Ng4 Rf7 16. f4 c4 17. dxc4 dxc4 18. Rf3 Bc5+ 19.
Kh1 Ba6 20. Qd1 Rd8 21. Qc1 {Vatter,H (2345)-Andresen,S (2395) Germany 1995
0-1 (56)}) 7. Be3 {White threatens to win material: Be3xc5} d4 {Black
threatens to win material: d4xe3} (7... e6 8. c4 $14) 8. Bd2 e6 9. h3 Bh5 10.
g4 Bg6 11. Ne5 {White threatens to win material: Ne5xc6} Bd6 12. Nxg6 (12. Nxc6
Qd7 13. Na5 Ne7 $14) 12... hxg6 $11 13. Kg2 g5 {White has a new backward pawn:
h3} 14. Na3 Rb8 {Black threatens to win material: Rb8xb2} 15. Nc4 {A
comfortable square for the white knight} Bf4 (15... f6 16. e5 Bxe5 17. Nxe5
fxe5 18. Qf3 $11) 16. Bxf4 gxf4 {Black has a new doubled pawn: f7} 17. Qd2 f3+
(17... g5 $142 $5 $11 {should not be overlooked}) 18. Kxf3 $16 Qh4 (18... Rxh3+
19. Ke2 $16) 19. Rh1 (19. Qf4 Qf6 20. Qxf6 Nxf6 $18) 19... Ne7 20. Qf4 Kd7 $2 (
20... O-O $142 $16) 21. Ne5+ $18 Kc8 22. Nxf7 $4 {an unfortunate move that
relinquishes the win} (22. Qxf7 $142 {nails it down} Rh6 23. Kg2 $18) 22... Ng6
(22... Rf8 $142 23. Ke2 Ng6 $11) 23. Nd6+ $4 {gives the opponent counterplay} (
23. Qg5 $142 Qxg5 24. Nxg5 Rxb2 25. Nxe6 Rxc2 26. Kg3 $16) 23... Kd7 $17 24.
Qh2 $2 (24. Qg3 Qf6+ 25. Nf5 exf5 26. exf5 Nh4+ 27. Ke2 $19) 24... Rbf8+ (24...
Rxb2 {keeps an even firmer grip} 25. Rac1 Qf6+ 26. Nf5 exf5 27. gxf5 Ne5+ 28.
Kg2 $19) 25. Ke2 $2 (25. Nf5 exf5 26. gxf5 $19) 25... Nf4+ 26. Kd2 Kxd6 27. e5+
(27. f3 $19) 27... Kxe5 28. Rae1+ Kd6 29. Re4 (29. a3 {doesn't get the bull
off the ice} Qxh3 30. Qxh3 Rxh3 $19) 29... e5 30. Rhe1 (30. Qg3 {cannot undo
what has already been done} Qxg3 31. fxg3 Nxh3 $19) 30... Qg5 (30... Qxg4 $142
$1 {makes it even easier for Black} 31. Qg3 Qxg3 32. fxg3 $19) 31. Rxe5 Ng6+ (
31... Rxh3 $142 {and Black takes home the point} 32. Qxh3 Nxh3+ 33. Rxg5 Rxf2+
34. Kd1 Nxg5 $19) 32. Rxg5+ $18 (32. Rxg5+ Nf4 33. h4 Rxh4 34. Qxh4 a5 35. Kc1
c4 36. Rxa5 Ne6 37. Ra7 Rf6 38. Qh5 c5 39. dxc4 g5 40. Qe8 Nf8 41. Qe7+ Kc6 42.
Qc7#) 1-0

