第7回札幌オータムチェス大会 - koyahatataku.com · C89: Closed Ruy Lopez: Marshall Attack 1.e4 e5 2.¤f3 ¤c6 3.¥b5 a6 4.¥a4 ¤f6 5.0-0 ¥e7 6.¦e1 b5 7.¥b3 0-0 8.c3

第 7 回札幌オータムチェス大会

棋　譜　集

2012 年 10 月 6 日（土），7 日（日）札幌市中央区北 2 条西 7 丁目　

かでる２７　1010 室

第１ラウンド

　　白黒

1 伊東　克英 0 − 1 西森　敏之2 佐藤　泰司 1 − 0 阿部　大聖3 舛井　　開 0 − 1 眞鍋　宏章4 小林　勝彦 1 − 0 渋谷　快成舛井　彩花 bye 竹田　啓悟 bye

第 2ラウンド

　　白黒1 西森　敏之 1 − 0 小林　勝彦2 眞鍋　宏章 1 − 0 佐藤　泰司3 舛井　彩花 0 − 1 竹田　啓悟4 渋谷　快成 0 − 1 伊東　克英5 阿部　大聖 1 − 0 舛井　　開

第 3ラウンド

　　白黒1 眞鍋　宏章 1 − 0 西森　敏之2 竹田　啓悟 1/2 − 1/2 佐藤　泰司3 小林　勝彦 1 − 0 阿部　大聖4 伊東　克英 1 − 0 舛井　彩花5 舛井　　開 1/2 − 1/2 渋谷　快成

第 4ラウンド

　　白黒

1 伊東　克英 0 − 1 眞鍋　宏章2 西森　敏之 1 − 0 竹田　啓悟3 佐藤　泰司 0 − 1 小林　勝彦4 阿部　大聖 1 − 0 渋谷　快成5 舛井　彩花 0 − 1 舛井　　開

第 5ラウンド

　　白黒1 小林　勝彦 0 − 1 眞鍋　宏章2 阿部　大聖 0 − 1 西森　敏之3 竹田　啓悟 0 − 1 伊東　克英4 舛井　　開 0 − 1 佐藤　泰司5 渋谷　快成 1 − 0 舛井　彩花

第 7回札幌オータムチェス大会　組み合わせ表／結果

Fritz11 Printout, Toshiyuki Nishimori, 2012/10/10 1

B33Ito,KatsuhideNishimori,Toshiyuki

Sapporo Autumn 2012 (1.1) 06.10.2012[Fritz 11 (30s)]

B33: Sicilian: Pelikan and SveshnikovVariations

1.e4 c5 2.¤f3 ¤c6 3.d4 cxd4 4.¤xd4 ¤f6 5.¤c3 e5 6.¤db5 d6 7.¥g5 a6 8.¤a3 b5 9.¥xf6 gxf6 10.¤d5 f5 11.¥d3 ¥e6 12.£h5 ¦g8 13.g3 ¦c8 DiagramXABCDEFGHY8-+rwqkvlr+(7+-+-+p+p'6p+nzpl+-+&5+p+Nzpp+Q%4-+-+P+-+$3sN-+L+-zP-#2PzPP+-zP-zP"1tR-+-mK-+R![xabcdefghy

last book move. Black loses the right tocastle 14.0-0-0

[ ¹14.0-0!?² is a viable option ] 14...¦g6 15.h4

[ 15.£e2 ¤d4 16.£e1³ ] 15...f4

[ ¹15...fxe4 Black had this greatchance 16.¥xe4 ¥h6+ 17.f4 ¥g4

18.¥xg6 ¥xh5 19.¥xh5 ¤e7 20.¤f6+ ¢f8 21.¤xh7+ ¢g7-+ ]

16.gxf4 [ 16.£xh7? leads to nothing fxg3 17.h5 ¦g7-+ ]

16...¥g4 17.£xh7 ¦h6Black threatens to win material:Rh6xh7 18.£g8 ¥xd1 19.¢xd1

[Not 19.¦xd1 £xh4 20.£g1 ¦g6³ ] 19...exf4 Diagram

[ ¹19...¤e7 20.£g3 ¤xd5 21.exd5 ¦c5³ ]

XABCDEFGHY8-+rwqkvlQ+(7+-+-+p+-'6p+nzp-+-tr&5+p+N+-+-%4-+-+Pzp-zP$3sN-+L+-+-#2PzPP+-zP-+"1+-+K+-+R![xabcdefghy

Black wins the exchange 20.c3??throwing away the advantage

[ ¹20.£g4 and White has air tobreath ¤e5 21.£xf4= ]

20...¤e5-+ 21.¤xf4? [ ¹21.¥f1 ¤g6 22.¦g1-+ ]

21...¦xh4 22.¦xh4 £xh4 23.¤g2? [ 23.£g3 £xg3 24.fxg3 ¤xd3 25.¤xd3-+ ]

23...£xf2 24.¥e2 ¢d7 [ ¹24...£g1+ seems even better 25.¢c2 £d4 26.£g3 £xe4+ 27.¢d1-+ ]

25.¤c2 b4! Decoy: b4 26.¥xa6??causes further problems for ?

[ 26.¤xb4 a5 Decoy ] [ 26.cxb4 ¦xc2 Combination ]

26...¦d8 [ ¹26...¦b8 and the rest is a matterof technique 27.£g5 bxc3-+ ]

27.¥b5+? [ ¹27.£g5 £g1+ 28.¢e2 bxc3 29.bxc3-+ ]

27...¢c7 [ 27...¢c7 28.£g5 ¦b8-+ ]

0-1


B86Sato,YasujiAbe,Taisei


B86: Sicilian Scheveningen/Najdorf: 6Bc4, without early ...b5

1.e4 c5 2.¤f3 d6 3.¥c4 e6 4.0-0 ¤f6 5.¤c3 a6 6.a4 ¥e7 7.d4 cxd4 8.¤xd4 0-0 DiagramXABCDEFGHY8rsnlwq-trk+(7+p+-vlpzpp'6p+-zppsn-+&5+-+-+-+-%4P+LsNP+-+$3+-sN-+-+-#2-zPP+-zPPzP"1tR-vLQ+RmK-![xabcdefghy

last book move. Black castles andimproves king safety 9.¦e1 £b6

10.b3 Black has a cramped position ¤c6 Black threatens to win material:Nc6xd4 11.¥e3 ¤xd4

[ 11...£c7 12.¤xc6 bxc6 13.¥f4= ] 12.¥xd4 £c7 13.e5 dxe5 14.¥xe5

[Weaker is 14.¦xe5 ¦d8 15.¦e3 b6³ ]

14...£a5 15.¦e3 Black has a crampedposition ¦d8 Black threatens to winmaterial: Rd8xd1

[ 15...¥d7 16.¥d3= ] 16.£e2

[ 16.£f3 ¤d7 17.¥d4 ¥f6 18.¥xf6 ¤xf6² ]

16...¤d7 Diagram [ ¹16...b5 17.¥d3 b4= ]

17.¥d3?? gives the opponent new

XABCDEFGHY8r+ltr-+k+(7+p+nvlpzpp'6p+-+p+-+&5wq-+-vL-+-%4P+L+-+-+$3+PsN-tR-+-#2-+P+QzPPzP"1tR-+-+-mK-![xabcdefghy

chances [ ¹17.¥d4 the rescuing straw ¤b6 18.¦d1² ]

17...¤xe5-+ 18.¥xh7+ ¢xh7 19.£h5+ ¢g8 20.¦h3

[ 20.£xe5 a last effort to resist theinevitable £xe5 21.¦xe5-+ ]

20...¤g6 [ ¹20...f5 finishes off the opponent 21.£h8+ ¢f7 22.£h5+ ¤g6-+ ]

21.£xa5 [ 21.£h7+ ¢f8 22.£h8+ ¤xh8 23.¦xh8# ]

1-0

B05Masui,HirakuManabe,Hiroaki


B05: Alekhine's Defence: 4 Nf3 Bg4 1.e4 ¤f6 2.e5 ¤d5 3.d4 d6 4.¤f3 ¥g4 5.h3 ¥h5 6.¥e2 e6 7.0-0 ¥e7Diagram

(Diagram)

last book move 8.¥d2 [ 8.c4 ¤b6± ]


XABCDEFGHY8rsn-wqk+-tr(7zppzp-vlpzpp'6-+-zpp+-+&5+-+nzP-+l%4-+-zP-+-+$3+-+-+N+P#2PzPP+LzPP+"1tRNvLQ+RmK-![xabcdefghy

8...¤a6 [ 8...dxe5 9.¤xe5 ¥xe2 10.£xe2² ]

9.exd6 cxd6 [ 9...£xd6 10.¤e5 ¥xe2 11.£xe2± ]

10.¤c3 [ 10.¥b5+ ¢f8± ]

10...¤f6² 11.¥e3 Black has acramped position

[ 11.¥b5+ ¤d7² ] 11...0-0 Black castles and improvesking safety 12.d5 Black has acramped position ¤b4 13.dxe6 fxe6White has a very active position. Blackhas new hanging pawns: d6+e6 14.a3White threatens to win material: a3xb4

¤c6 15.¤d4 [ 15.¤g5 ¥f7² ]

15...¥xe2 16.£xe2 £d7 White has avery active position 17.£b5

[ 17.¦ad1 d5² ] 17...a6= Black threatens to winmaterial: a6xb5 18.£g5 White has avery active position

[ 18.£d3 ¤xd4 19.£xd4 d5= ] 18...¤e4 Black threatens to winmaterial: Ne4xg5

[ 18...¤xd4 19.¥xd4 e5 20.¥e3³ ] 19.£g4= ¤xc3 20.¥h6

[ 20.¤xc6!? looks like a viablealternative bxc6 21.bxc3= ]

20...¥f6∓ 21.¤xc6

[ 21.bxc3 ¦ac8∓ ] 21...bxc6

[ 21...£xc6!? 22.bxc3 ¥xc3-+ ] 22.bxc3∓ ¥xc3 23.¦ad1 d5 24.¦d3 ¥b2 25.¦e1 ¦f6 26.¥g5 ¦g6 27.£f4

[ 27.h4!? h6 28.£b4 hxg5 29.hxg5 ¥xa3 30.¦xa3 ¦xg5 31.¦ea1∓ ]

27...e5-+ 28.£b4 ¥xa3 [ 28...¥d4 29.£e7 £xe7 30.¥xe7-+ ]

29.¦xa3∓ ¦xg5 30.¦ae3 [ 30.£c5 h6-+ ]

30...e4 31.c4 ¦f8 32.cxd5 cxd5DiagramXABCDEFGHY8-+-+-trk+(7+-+q+-zpp'6p+-+-+-+&5+-+p+-tr-%4-wQ-+p+-+$3+-+-tR-+P#2-+-+-zPP+"1+-+-tR-mK-![xabcdefghy

33.f3?? shortens the misery for White [ 33.£b6-+ ]

33...£xh3 34.¦1e2 [ 34.£d2 the last chance forcounterplay exf3 35.£xd5+ ¦xd5

36.gxh3 f2+ 37.¢h2-+ ] 34...exf3 35.¦xf3 £xf3 36.£b2

[ 36.£xf8+ doesn't get the bull off theice £xf8 37.¦e8 £xe8 38.¢f2

¦f5+ 39.¢g3 £e3+ 40.¢h4 £f4+ 41.¢h3 ¦h5# ]

36...£f1+ 37.¢h2 ¦h5+ 38.¢g3 £f4#0-1


C01Kobayashi,KatsuhikoShibuya,Kaisei


C01: French: Exchange Variation 1.e4 ¤c6 2.d4 e6 3.¤f3 d5 4.exd5 exd5 5.¥b5 DiagramXABCDEFGHY8r+lwqkvlntr({7zppzp-+pzpp'6-+n+-+-+&5+L+p+-+-%4-+-zP-+-+$3+-+-+N+-#2PzPP+-zPPzP"1tRNvLQmK-+R!xabcdefghy

last book move ¥d7 [ 5...¥d6 6.0-0 ¤ge7 7.c4 dxc4 8.¥xc4= ]

6.0-0 ¤f6 [ 6...¥d6 7.c4 dxc4 8.¥xc4± ]

7.¥g5 [ 7.¦e1+!? ¥e7 8.£e2± ]

7...¥e7² 8.¤c3 0-0 [ 8...a6 9.¥xc6 bxc6 10.¦e1² ]

9.¥xf6± ¥xf6 10.¤xd5 ¦e8 11.¤xf6+ £xf6 12.¥xc6 ¥xc6 13.¦e1

[ 13.¤e5 ¦ad8 14.¦e1 £d6± ] 13...¦xe1+= 14.¤xe1 ¦d8 15.c3 h6

[ 15...£g5 16.¤f3 £g6 17.¦c1² ] 16.¤d3

[ 16.¤c2 ¥e4± ] 16...£g6

[ 16...£g5 17.£f1² ] 17.g3

[ 17.f3!?± ] 17...£e4= 18.f3 £xf3 19.£xf3 ¥xf3

20.¢f2 White threatens to winmaterial: Kf2xf3 ¥e4 Black threatensto win material: Be4xd3 21.¤e5 ¦d5

22.¦e1 ¥f5 23.¢e3 ¥e6 [ 23...f6 24.¤d3= ]

24.¢e4 f5+ [ 24...f6 25.¤d3= ]

25.¢f4 ¦a5 26.a3 ¦b5 27.b4 a5 [ 27...g5+ 28.¢f3² ]

28.¤d3 [ 28.c4 g5+ 29.¢f3 ¦b6 30.bxa5 ¦b3+ 31.¦e3 ¦b2± ]

28...¢f7 [ 28...g5+ 29.¢e3 axb4 30.axb4² ]

29.¤c5 [ 29.c4!? ¦b6 30.d5 g5+ 31.¢f3+- ]

29...¥c8² 30.a4 White threatens towin material: a4xb5 ¦b6 31.b5

[ 31.bxa5 ¦b2² ] 31...c6

[ ¹31...¦d6!?= must definitely beconsidered ]

32.c4± cxb5 33.cxb5 ¥e6? Diagram [ 33...¦g6 34.¦c1 b6 35.¤a6± ]

XABCDEFGHY8-+-+-+-+(7+p+-+kzp-'6-tr-+l+-zp&5zpPsN-+p+-%4P+-zP-mK-+$3+-+-+-zP-#2-+-+-+-zP"1+-+-tR-+-![xabcdefghy

34.¤xe6?? a transit from better toworse

[ ¹34.¢e5 and White has reachedhis goal ¥c8 35.d5+- ]

34...¦xe6² A rook endgame occured 35.¦e5 Praise the rook! g6 36.d5


White threatens to win material: d5xe6 ¦b6 37.¢e3 ¢f6??

[ ¹37...¦f6² would keep Black alive ] 38.¢d4+- ¦d6

[ 38...g5 39.¦e8 ¢f7 40.¦b8+- ] 39.¦e1

[ 39.¦e8 might be the shorter path ¦d7 40.¦e6+ ¢g7+- ]

39...h5? [ ¹39...g5 40.¦e8 ¢f7+- ]

40.¢c5 ¦d7 41.¦e6+ ¢f7 42.h3??stumbles just before the finish line

[ ¹42.h4+- makes it even easier forWhite ]

42...¦e7?? [ ¹42...g5² ]

43.¦xe7+ [ ¹43.¢d6 and White has triumphed ¦e8 44.¦xe8 ¢xe8+- ]

43...¢xe7 44.¢b6 [ ¹44.h4+- secures victory ]

44...¢d6 [ 44...h4 45.¢c7 hxg3 46.d6+ ¢e6 47.d7+- ]

45.¢xb7 [ ¹45.h4 keeps an even firmer grip ¢xd5 46.¢xb7+- ]

45...¢xd5 [ 45...h4 46.gxh4 f4+- ]

46.b6 [ ¹46.¢a6 and White can alreadyrelax h4 47.gxh4 f4+- ]

46...g5 [ 46...h4 there is nothing else anyway 47.gxh4 f4+- ]

47.¢a7 g4 48.hxg4 hxg4 49.b7 f4 50.gxf4 g3

[ 50...¢e6 does not win a prize 51.b8£ ¢d5 52.f5 ¢d4 53.f6 g3 54.£xg3 ¢d5 55.£e3 ¢c4 56.f7 ¢d5 57.f8£ ¢c6 58.£f5 ¢d6 59.£ec5# ]

51.b8£ g2 52.£g8+ ¢e4 53.£xg2+ ¢xf4 54.¢b6

[ 54.£d2+ ¢e5 55.¢a6 ¢e4

56.£d1 ¢e3 57.¢xa5 ¢f4 58.£d5 ¢g3 59.¢b6 ¢f4 60.a5 ¢g4 61.a6 ¢g3 62.a7 ¢f2 63.£d3 ¢e1 64.a8£ ¢f2 65.£g8 ¢e1 66.£gg3# ]

54...¢e5 55.¢c5 [ 55.¢c5 ¢f4 56.£d2+ ¢g3 57.£xa5 ¢f4 58.£a7 ¢f5 59.£d7+ ¢f6 60.a5 ¢g6 61.a6 ¢h6 62.£g4 ¢h7 63.a7 ¢h6 64.a8£ ¢h7 65.£h1# ] [ 55.£f3 ¢d4 56.£e2 ¢d5 57.£d2+ ¢e4 58.¢xa5 ¢e5 59.£h2+ ¢e6 60.£h3+ ¢f6 61.£d7 ¢e5 62.¢b6 ¢f4 63.a5 ¢g5 64.a6 ¢h6 65.£d2+ ¢h5 66.a7 ¢g6 67.£d6+ ¢g5 68.a8£ ¢g4 69.£g2+ ¢f5 70.£gg6# ]

1-0

C89Nishimori,ToshiyukiKobayashi,Katsuhiko


C89: Closed Ruy Lopez: MarshallAttack

1.e4 e5 2.¤f3 ¤c6 3.¥b5 a6 4.¥a4 ¤f6 5.0-0 ¥e7 6.¦e1 b5 7.¥b3 0-0 8.c3 ¥b7 9.d4 Diagram

(Diagram)

last book move exd4 [ 9...¥d6!?= ]

10.cxd4 White has an active position [ 10.e5 ¤e8± ]

10...d5 Black threatens to win material:d5xe4 11.e5 White threatens to winmaterial: e5xf6 ¤e8

[ 11...¤e4 12.¤c3 ¤a5 13.¥c2² ] 12.¤bd2

[ 12.¥d2 b4± ]


XABCDEFGHY8r+-wq-trk+({7+lzppvlpzpp'6p+n+-sn-+&5+p+-zp-+-%4-+-zPP+-+$3+LzP-+N+-#2PzP-+-zPPzP"1tRNvLQtR-mK-!xabcdefghy

12...¤a5 13.¥c2 ¤c4 [ 13...g6 14.¤b3 ¤xb3 15.axb3± ]

14.b3 [ 14.¤b3 g6 15.¤c5 ¥xc5 16.dxc5 £d7+- ]

14...¤xd2 15.¥xd2 [ 15.£xd2 f6 16.£c3+- ]

15...c5? [ 15...g6 16.¥d3± ]

16.¦c1 [ ¹16.dxc5!? d4 17.c6 ¥xc6 18.¥xh7+ ¢xh7 19.£c2+ g6 20.£xc6 ¤g7+- ]

16...cxd4 [ 16...c4!?² ]

17.¤xd4± Diagram

(Diagram)

¤c7?? the final mistake, not that itmatters anymore

[ ¹17...g6± ] 18.¥a5+- ¦c8

[ 18...g6 doesn't improve anything 19.¥f5 £b8 20.¥xc7+- ]

19.¥f5 ¥g5 20.¦c2 £e7 21.¥xc8 ¦xc8 22.¤f5

[ 22.h4!? keeps an even firmer grip ¥xh4 23.¤f5 £g5 24.¤xh4 £xh4+- ]

22...£d7 23.¤d6 ¥h4

XABCDEFGHY8r+-wqntrk+({7+l+-vlpzpp'6p+-+-+-+&5+p+pzP-+-%4-+-sN-+-+$3+P+-+-+-#2P+LvL-zPPzP"1+-tRQtR-mK-!xabcdefghy

[ 23...¤e8 no good, but what else? 24.¤xc8 ¥xc8+- ]

24.g3 [ ¹24.¤xc8 seems even better ¤e6 25.¤d6 ¥e7 26.¤xb7 £xb7+- ]

24...¥c6 [ 24...¤e6 is one last hope 25.¤xc8 ¥xc8 26.gxh4 d4+- ]

25.¤xc8 d4 26.¦xc6 [ ¹26.¤a7 and White has prevailed ¤e6 27.¤xc6 d3 28.gxh4 g6+- ]

26...£xc6 27.£xd4 [ ¹27.£c1 makes it even easier forWhite £xc1 28.¦xc1 ¥xg3

29.¥xc7+- ] 27...£e8

[ 27...¤e6 hoping against hope 28.£c3 £xc3 29.¥xc3 ¥d8+- ]

28.¤d6 £e7 29.¥xc7 [ 29.¦c1 h6 30.¦xc7 £e6 31.£xh4 £xe5 32.¦c8+ ¢h7 33.¦h8+ ¢xh8 34.¤xf7+ ¢h7 35.¤xe5 b4 36.£f4 ¢h8 37.¤g6+ ¢h7 38.¤e7 h5 39.£f7 ¢h6 40.£g6# ]

29...¥xg3 30.hxg3 £xc7 31.¤f5 [ 31.¤f5 b4 32.e6 fxe6 33.¦xe6 ¢f7 34.£d5 £c1+ 35.¢h2 £h1+ 36.¢xh1 ¢f8 37.¦xa6 h5 38.¦a8# ]

1-0


C52Manabe,HiroakiSato,Yasuji


C52: Evans Gambit Accepted: 5 c3Ba5

1.e4 e5 2.¤f3 ¤c6 3.¥c4 ¥c5 4.b4 ¥xb4 5.c3 ¥a5 6.d4 d6 7.£b3 ¤h6 8.¥xh6 gxh6 9.¥xf7+ ¢f8DiagramXABCDEFGHY8r+lwq-mk-tr(7zppzp-+L+p'6-+nzp-+-zp&5vl-+-zp-+-%4-+-zPP+-+$3+QzP-+N+-#2P+-+-zPPzP"1tRN+-mK-+R![xabcdefghy

last book move. Black loses the right tocastle 10.0-0 £f6

[ 10...¥g4 11.¥d5 ¥xf3 12.£xb7= ] 11.¥c4

[ 11.¥d5 ¥b6² ] 11...¥b6 12.dxe5 ¤xe5 13.¤bd2 ¤xc4 14.¤xc4

[ 14.£xc4 ¦g8 15.£d3 ¥h3= ] 14...¥e6

[ 14...¥h3 15.¤xb6 ( 15.gxh3?? ¦g8+ 16.¤g5 ¦xg5+ 17.¢h1 £f3# ) 15...axb6 16.¤e1= ]

15.¤xb6 Diagram [ ¹15.¤d4 ¦e8 16.¤xb6 axb6 17.£c2² ]

15...¥xb3?? [ ¹15...axb6 would hold out 16.£c2 ¦g8= ]

XABCDEFGHY8r+-+-mk-tr({7zppzp-+-+p'6-sN-zplwq-zp&5+-+-+-+-%4-+-+P+-+$3+QzP-+N+-#2P+-+-zPPzP"1tR-+-+RmK-!xabcdefghy

16.¤d7++- ¢e7 [ 16...¢f7 17.¤xf6 ¥c4 18.¤d5 ¥xf1 19.¢xf1+- ]

17.¤xf6 ¢xf6 [ 17...¥xa2 does not solve anything 18.¤g4 ¥c4 19.¦fb1+- ]

18.axb3 c5 [ 18...¦hf8 is not the saving move 19.¤d4+- ]

19.¦fd1 ¢e6 [ 19...¦hd8 doesn't change theoutcome of the game 20.¦d5 a5

21.c4+- ] 20.¦d5 a5 21.¦ad1 ¦hd8 22.e5

[ 22.¦h5 and White can already relax ¢f6 23.¦xh6+ ¢g7+- ]

22...c4 [ 22...¦a6 does not improve anything 23.c4+- ]

23.¦xd6+ ¦xd6 24.¦xd6+ ¢e7 25.¤d4 cxb3 26.¤xb3

[ ¹26.¦xh6!? makes it even easierfor White ¢e8 27.¦xh7 a4 28.¦xb7

a3 29.¤xb3 a2+- ] 26...a4 27.¤c1 a3 28.¤a2 ¦a6

[ 28...h5+- the only chance to getsome counterplay ]

29.¦xa6 bxa6 30.¢f1 [ ¹30.f4!? seems even better ¢e6 31.c4 h5+- ]

30...¢e6


[ 30...h5+- otherwise it's curtains atonce ]

31.f4 a5 32.¢e2 h5 33.¢d3 h4 34.¢c4

[ 34.¢e4 might be the shorter path ¢f7+- ]

34...¢f5 35.¢b5 [ 35.¢d5 h3 36.gxh3 h5+- ]

35...¢xf4 36.e61-0

C55Masui,IrohaTakeda,Keigo


C55: Two Knights: 4 d3, 4 d4 exd4 5e5 and Max Lange Attack

1.e4 e5 2.¤f3 ¤c6 3.¥c4 ¤f6 4.0-0 ¤xe4 DiagramXABCDEFGHY8r+lwqkvl-tr(7zppzpp+pzpp'6-+n+-+-+&5+-+-zp-+-%4-+L+n+-+$3+-+-+N+-#2PzPPzP-zPPzP"1tRNvLQ+RmK-![xabcdefghy

last book move 5.£e1 White threatensto win material: Qe1xe4

[ 5.¤c3 ¤xc3 6.dxc3 h6= ] 5...d5³ Black threatens to win material:d5xc4 6.¥d3?

[ 6.¥b5 f6 7.d4 ¥e7 8.dxe5 0-0³ ] 6...¥f5

[ ¹6...¥e7-+ ] 7.¤h4??

[ ¹7.¤c3= would bring relief ] 7...£xh4-+ 8.¥e2

[ 8.¥b5 doesn't get the cat off thetree ¥d6 9.d3 ¤f6-+ ]

8...¥c5 [ 8...¤c5 and Black can already relax 9.d3-+ ]

9.d3 ¤f6 10.¥d2 [ 10.¤d2 is not much help e4-+ ]

10...¥d6 [ 10...0-0 makes it even easier forBlack 11.¤c3-+ ]

11.¤c3 e4 DiagramXABCDEFGHY8r+-+k+-tr(7zppzp-+pzpp'6-+nvl-sn-+&5+-+p+l+-%4-+-+p+-wq$3+-sNP+-+-#2PzPPvLLzPPzP"1tR-+-wQRmK-![xabcdefghy

12.dxe4 [ 12.g3 is the last straw £h3 13.¥f3-+ ]

12...£xh2#0-1

B50Shibuya,KaiseiIto,Katsuhide


B50: Sicilian: 2...d6, Miscellaneous 1.e4 c5 2.¤f3 ¤c6 3.¤c3 d6 4.¥c4 Diagramlast book move ¥g4

[ 4...¤f6 5.d4 cxd4 6.¤xd4² ]


XABCDEFGHY8r+lwqkvlntr({7zpp+-zppzpp'6-+nzp-+-+&5+-zp-+-+-%4-+L+P+-+$3+-sN-+N+-#2PzPPzP-zPPzP"1tR-vLQmK-+R!xabcdefghy

5.¥e2 [ ¹5.¥xf7+ ¢xf7 6.¤g5+ ¢e8 7.£xg4± ]

5...¤f6= 6.d3 g6 7.h3White threatens to win material: h3xg4

¥d7 8.¥g5 ¥g7 9.0-0 0-0 10.¦e1 a6 Consolidates b5 11.a3 Controls b4 b5 12.¦b1 b4

[ 12...¤d4 13.£d2= ] 13.axb4² ¤xb4

[ 13...cxb4 14.¤d5² ] 14.£d2

[ 14.e5 ¤e8 15.¤e4 f6 16.exf6 ¤xf6± ]

14...a5 [ 14...¤c6 15.¤d5² ]

15.b3 Covers a4 [ 15.e5 ¤e8 16.exd6 ¤xd6² ]

15...¦e8 16.¦a1 e5 17.¥f1 [ 17.¤h2 h6 18.¥e3 d5 19.exd5 ¤fxd5 20.¤xd5 ¤xd5 21.¥xh6 ¤f4 22.¥xf4 exf4² ]

17...£c7= 18.¤e2 Diagram [ 18.g3 ¥e6= ]

(Diagram)

18...d5 19.exd5 [ 19.¤g3 d4³ ]

19...¤fxd5

XABCDEFGHY8r+-+r+k+({7+-wql+pvlp'6-+-zp-snp+&5zp-zp-zp-vL-%4-sn-+P+-+$3+P+P+N+P#2-+PwQNzPP+"1tR-+-tRLmK-!xabcdefghy

[ 19...e4 20.¥f4 £d8 21.¤e5 exd3 A) 22.¤xd7?? is suicide ¤e4 ( 22...£xd7?! 23.cxd3 ¤fxd5 24.¦ac1³ ; 22...dxe2?! is clearlyinferior 23.¤xf6+ ¥xf6 24.¥xe2

¥xa1 25.¦xa1∓ ) 23.£e3 dxe2 ( 23...£xd7?! is clearly worse 24.cxd3 ¤c2 25.£f3-+ ) 24.£xe2 £xd7-+ ; B) 22.cxd3 ¤fxd5 23.¥g5∓ ]

20.¦ab1 [ 20.c3 ¤c6 21.¤g3³ ]

20...e4 [ ¹20...¥c6!?∓ ]

21.dxe4= ¦xe4 Black has a veryactive position. . 22.¤g3

[ 22.¦bc1 c4 23.bxc4 ¦xc4= ( 23...£xc4? 24.c3 £a2 25.cxb4 £xd2 26.¥xd2 axb4 27.¦c5+- )]

22...¥c3 [ ¹22...¦xe1 23.¤xe1 ¥c3∓ ]

23.£d3?? [ ¹23.¤xe4 saving the game ¥xd2 24.¤fxd2 ¤xc2 25.¦ec1³ ]

23...¤xd3 [ ¹23...¦xe1 secures the win 24.¤xe1 ¤xd3 25.¥xd3-+ ]

24.¦xe4 ¤xf2! sealing the opponent'sfate 25.¢xf2 ¥f5

[ ¹25...¥d4+ ends the debate 26.¤xd4 cxd4-+ ]


26.¤xf5 gxf5 27.¦h4 [ 27.¦c4 ¥f6 28.¥d2 £d7-+ ]

27...¥d4+ 28.¢e1 [ 28.¤xd4 cxd4 29.¥d3-+ ]

28...£g3+ 29.¢d2 £f2+ 30.¥e2 ¥c3+ 31.¢d3 ¦e8 32.¦f1

[ 32.¦e1 cannot change what is instore for ? ¥xe1 33.¤e5 ¤c3

34.¢c4 £xe2+ 35.¢xc5 £xe5+ 36.¢b6 £d6+ 37.¢a7 ¤b5+ 38.¢b7 ¦b8# ]

32...£xe2# [ 32...¦xe2?! 33.¦xf2 ¦xf2 34.¢c4³ ]

0-1

A01Abe,TaiseiMasui,Hiraku


A01: Nimzowitsch-Larsen Opening 1.b3 e5 2.¥b2 ¤c6 3.e3 ¤f6 4.¥b5 DiagramXABCDEFGHY8r+lwqkvl-tr({7zppzpp+pzpp'6-+n+-sn-+&5+L+-zp-+-%4-+-+-+-+$3+P+-zP-+-#2PvLPzP-zPPzP"1tRN+QmK-sNR!xabcdefghy

last book move a6 [ 4...¥b4 5.¥xc6 dxc6 6.¥xe5= ]

5.¥xc6² dxc6 6.¥xe5 Black has thepair of bishops ¥d6 Black threatens towin material: Bd6xe5 7.¤f3 £e7

[ 7...¥g4 8.¥b2² ] 8.¥b2

[ 8.¥xd6 £xd6 9.0-0 ¥g4± ] 8...¥g4 9.h3 White threatens to winmaterial: h3xg4 ¥h5 10.d4

[ 10.0-0 ¤e4 11.d3 f5= ] 10...0-0= 11.¤bd2 b5

[ 11...¤e4 12.¤xe4 £xe4 13.£e2 ¥b4+ 14.c3= ]

12.0-0² ¤e4 13.¤xe4 £xe4 14.¦c1 [ 14.£d3 ¥xf3 15.gxf3 £xf3 16.e4 £xd3 17.cxd3² ]

14...¥xf3 [ ¹14...f5!?= deservesconsideration ]

15.£xf3± [ 15.gxf3?! £g6+ 16.¢h1 £e6= ]

15...£xf3 16.gxf3 ¦fe8 17.c4 ¦e6 18.f4 ¦h6 19.¢g2 ¦h5 20.¦h1 ¦e8

[ 20...a5 21.a4± ] 21.cxb5+- cxb5 22.¦c6 ¦e6

[ 22...a5 23.¦a6+- ] 23.¦xa6 ¦g6+

[ 23...¢f8 24.¦a8+ ¢e7 25.¦g8+- ] 24.¢f3 DiagramXABCDEFGHY8-+-+-+k+({7+-zp-+pzpp'6R+-vl-+r+&5+p+-+-+r%4-+-zP-zP-+$3+P+-zPK+P#2PvL-+-zP-+"1+-+-+-+R!xabcdefghy

¦gh6?? the pressure is too much,Black crumbles

[ 24...f5+- ] 25.¦a8+ ¥f8 26.¥a3 g6

[ 26...¦d6 there is nothing better inthe position 27.¥xd6 cxd6+- ]


27.¥xf8 ¦xh3+ 28.¢g2 [ 28.¢e2 f5 29.¥xh6+ ¢f7 30.¦c1 ¦xe3+ 31.fxe3 g5 32.¦xc7+ ¢g6 33.¦g8+ ¢h5 34.¦xh7 ¢g4 35.¥xg5 b4 36.¥f6# ]

28...¦3h5 29.¥xh6#1-0

B24Manabe,HiroakiNishimori,Toshiyuki


B24: Closed Sicilian: 3 g3 sidelines 1.e4 c5 2.¤c3 ¤c6 3.g3 g6 4.¥g2 ¥g7 5.¤ge2 d6 6.0-0 DiagramXABCDEFGHY8r+lwqk+ntr({7zpp+-zppvlp'6-+nzp-+p+&5+-zp-+-+-%4-+-+P+-+$3+-sN-+-zP-#2PzPPzPNzPLzP"1tR-vLQ+RmK-!xabcdefghy

last book move ¦b8 7.a4 a6Secures b5 8.d3 ¤f6 9.¥d2 0-0

10.£c1 ¦e8 11.¥h6 ¥h8 12.f4 [ 12.¦e1 ¥g4= ]

12...£c7 [ 12...¤g4!? must definitely beconsidered 13.f5 ¤xh6 14.£xh6

¥g7³ ] 13.f5= White wins space ¤e5 14.fxg6 hxg6 15.¥g5 b5 16.axb5 axb5 17.¥xf6 ¥xf6 Black has the pair ofbishops 18.¤d5 Diagram

£d7??

XABCDEFGHY8-trl+r+k+({7+-wq-zpp+-'6-+-zp-vlp+&5+pzpNsn-+-%4-+-+P+-+$3+-+P+-zP-#2-zPP+N+LzP"1tR-wQ-+RmK-!xabcdefghy

[ ¹18...£d8² the only rescuingmove ]

19.¦xf6+- e6 [ 19...¥b7 hoping against hope 20.¦f1 ¦a8+- ]

20.¦xg6+! Double attack: d7/g8 ¤xg6 [ 20...¤xg6 21.¤f6+ Double attack ] [ 20...fxg6 21.¤f6+ Double attack ]

21.¤f6+ ¢g7 22.¤xd7 ¥xd7 23.¦a7 [ ¹23.¤f4 keeps an even firmer grip ¦h8 24.¦a6 ¦b7+- ]

23...¥c6 [ 23...¦ed8 is no salvation 24.£g5 ¢h7 25.¤f4+- ]

24.£f1 [ ¹24.¤f4!? might be the shorterpath ¦b7 25.¤h5+ ¢f8 26.£h6+

¢e7 27.£g5+ ¢f8+- ] 24...¤e5

[ 24...¦e7 cannot change destiny 25.¦a6 ¦c8 26.¤f4+- ]

25.d4 cxd4 26.¤xd4 ¥d7 27.£f4 [ ¹27.¤f3 seems even better ¦ed8 28.¤xe5 dxe5 29.£d1+- ]

27...¦h8 [ 27...¦a8 a last effort to resist theinevitable 28.¤f5+! Decoy: f5 exf5

29.exf5 ¥xf5 ( 29...¦xa7 is not to beadvocated because of the followingmating combination 30.f6+ ¢g8

31.£g5+ ¤g6 32.£h6 ¦a1+


33.¢f2 ¦e2+ 34.¢xe2 ¤f4+ 35.gxf4 ¥g4+ 36.¢f2 ¦f1+ 37.¥xf1 ¥f3 38.£g7# ) 30.¥xa8 ¥g6+- ]

28.£g5+ ¢f8 29.£f6 ¦g8 30.¤f3 ¤g4 31.£h4

[ 31.¦xd7 is a weaker possibility ¤xf6 32.¦xd6 ¤xe4³ ]

31...¥e8 32.£e7+ ¢g7 33.£xd6 [ 33.¤g5 ¤f6 34.¤xf7 ¦f8 35.¤xd6+ ¥f7 36.£xe6 b4 37.¦xf7+ ¦xf7 38.£xf7+ ¢h8 39.£xf6+ ¢h7 40.£f7+ ¢h6 41.¤f5+ ¢g5 42.¥f3 ¦d8 43.h4# ]

33...¦c8 34.£xe6 ¦xc2 35.£xg4+ ¢f8 36.£h5 b4

[ 36...¦c1+ doesn't improve anything 37.¥f1 ¦c6 38.¥xb5 ¦b6 39.¥xe8 ¦bg6 40.¥xf7 ¦d6 41.¥b3 ¦xg3+ 42.hxg3 ¦d7 43.¦a8+ ¢g7 44.¦g8+ ¢f6 45.£e5# ]

37.¤d4 ¦g6 [ 37...¦c1+ does not help much 38.¢f2 ¦c2+ 39.¤xc2 ¦g7 40.¤d4 ¢g8 41.¦a8 ¦g5 42.¦xe8+ ¢g7 43.£h8+ ¢g6 44.¦g8# ]

38.£h8+ ¦g8 39.¤e6+! Mate attack fxe6

[ 39...fxe6 40.£h6+ Mate attack ] [ 39...-- 40.-- Mate attack ]

40.£f6+ [ 40.£f6+ ¥f7 41.£xf7# ]

1-0

C71Takeda,KeigoSato,Yasuji


C71: Ruy Lopez: Deferred SteinitzVariation, sidelines

1.e4 e5 2.¤f3 ¤c6 3.¥b5 d6 4.h3 a6 5.¥a4 ¤f6 6.0-0 Diagramlast book move ¤xe4 7.¦e1 ¤f6

XABCDEFGHY8r+lwqkvl-tr({7+pzp-+pzpp'6p+nzp-sn-+&5+-+-zp-+-%4L+-+P+-+$3+-+-+N+P#2PzPPzP-zPP+"1tRNvLQ+RmK-!xabcdefghy

[ 7...f5= ] 8.c3

[ ¹8.d4!?² and White is still in thegame ]

8...¥e7³ 9.d4 White threatens to winmaterial: d4xe5 b5 Black threatens towin material: b5xa4

[ 9...e4 10.¤fd2 d5 11.c4³ ] 10.¥c2

[ 10.dxe5 ¤xe5 11.¤xe5 dxe5 12.£xd8+ ¢xd8= ]

10...exd4 [ 10...0-0 11.dxe5 ¤xe5 12.¤xe5 dxe5 13.£xd8 ¦xd8 14.¦xe5³ ]

11.cxd4= 0-0 Black castles andimproves king safety 12.¤bd2White has an active position

[ 12.a3 ¦e8= ] 12...d5 Black has a new backwardpawn: c7

[ 12...¤b4 13.¥b1∓ ] 13.¤f1³ h6 Secures g5 14.¤g3 ¦e8 15.£d3?

[ ¹15.¤e5!? is worth looking at ¥d7 16.¥f4= ]

15...¤b4∓ 16.£d2 ¤c6Black prepares b4

[ 16...c5!?∓ ] 17.a3 Prevents intrusion on b4

[ 17.£d3 ¥d6 18.¦xe8+ £xe8³ ] 17...b4


[ 17...¥d6 18.¦xe8+ £xe8 19.£d3³ ]

18.axb4 [ 18.¤e5!? ¥d7 19.¥f5² ]

18...¤xb4 White has an active position [ 18...¥d7 19.£d1³ ]

19.¥b1 [ 19.¥a4 c6= ]

19...¤c6 20.£d3 Diagram [ ¹20.£c2 ¥b7 21.¤h5= ]

XABCDEFGHY8r+lwqr+k+({7+-zp-vlpzp-'6p+n+-sn-zp&5+-+p+-+-%4-+-zP-+-+$3+-+Q+NsNP#2-zP-+-zPP+"1tRLvL-tR-mK-!xabcdefghy

20...¥e6?? not a good decision,because now the opponent is rightback in the game

[ ¹20...¥d6!?∓ ] 21.¤h5

[ ¹21.¦xe6 fxe6 22.¥xh6± ] 21...g6?? hands over the advantage tothe opponent

[ 21...¥b4 22.¤e5 ¤xe5 23.¤xf6+ ( ‹23.¦xe5 ¥d6∓ ) 23...£xf6 24.£h7+ ( ‹24.¦xe5 ¥d6 25.£h7+ ¢f8∓ ) 24...¢f8 25.dxe5² ]

22.¤xf6+ [ ¹22.¦xe6 and White takes homethe point ¤xh5 23.¦xc6+- ]

22...¥xf6= The isolani on d4 becomesa target 23.¥xh6 ¥f5 Black threatensto win material: Bf5xd3 24.£d2

[ ¹24.¦xe8+!? is noteworthy £xe8 25.£c3= ]

24...¦xe1+³ 25.£xe1 ¥xb1 26.¦xb1 [ 26.£c3 ¤xd4 Decoy: d4 27.¤xd4 ¥e4³ ]

26...¤xd4∓ [Inferior is 26...¥xd4 27.¦c1 £d6 28.¦xc6 £xc6 29.¤xd4± ]

27.¤xd4 ¥xd4 28.£d1 [ 28.b4 £d6∓ ]

28...c5 29.¥e3 ¥xe3 30.fxe3 £g5 31.¢f2?

[ ¹31.£c1 £e7 32.¦a1∓ ] 31...¦e8-+ 32.£d2?? the final mistake,not that it matters anymore

[ 32.£c1 £f5+ 33.¢g1 ¦xe3-+ ] 32...d4! Deflection: e3 33.¦e1

[ 33.exd4 £f5+ Double attack ( 33...£xd2+ Pinning ; 33...£xd2+Deflection ; 33...£xd2+ Decoy )]

[ 33.-- dxe3+ Mate threat ] 33...£f5+ 34.¢g1 £e4 35.¢f2 £f5+½-½

A47Kobayashi,KatsuhikoAbe,Taisei


A47: 1 d4 Nf6 2 Nf3 b6: Torre, Londonand Colle Systems

1.¤f3 ¤f6 2.d4 e6 3.g3 b6 4.¥g2 ¥b7 Diagram

(Diagram)

last book move 5.¤c3 ¥b4 6.0-0 ¥xc3 7.bxc3 d5 8.¥g5

[ 8.a4 ¤c6² ] 8...¤bd7 9.¤e5 h6 10.¤xd7 ¢xd7Black loses the right to castle

[ 10...hxg5 11.¤e5= ] 11.¥f4² ¤h5 12.¥d2 £e7 13.e4 ¤f6 Black threatens to win material:Nf6xe4 14.e5 White threatens to win


XABCDEFGHY8rsn-wqkvl-tr(7zplzpp+pzpp'6-zp-+psn-+&5+-+-+-+-%4-+-zP-+-+$3+-+-+NzP-#2PzPP+PzPLzP"1tRNvLQmK-+R![xabcdefghy

material: e5xf6 ¤e8? [ ¹14...¤e4² and Black could wellhope to play on ]

15.c4!+- Deflection: d5 ¥a6? [ 15...dxc4 16.¥xb7 Pinning ( 16.¥xb7 Deflection )]

16.cxd5 ¥xf1 17.dxe6+ [Worse is 17.¥xf1 exd5 18.¥h3+ ¢d8+- ] [ 17.¢xf1?! ¦b8+- ]

17...fxe6 18.¥xa8 [ 18.¥xf1?! ¦d8 19.£f3 c6+- ] [Weaker is 18.¢xf1 ¦b8+- ]

18...¥b5 [ 18...¥c4 cannot undo what hasalready been done 19.£f3 ¢d8

20.£c3+- ] 19.¥g2

[ ¹19.a4 might be the shorter path ¥c4 20.£f3 ¢d8+- ]

19...h5 [ 19...¥c4 20.a4+- ]

20.d5 [ ¹20.£f3 finishes off the opponent ¦f8 21.£b3+- ]

20...exd5 21.¥h3+ [ 21.¥c3 and White can already relax £c5 22.£d2 ¢c8+- ]

21...¢d8? Diagram [ ¹21...¢c6 22.¥c3 ¥c4+- ]

XABCDEFGHY8-+-mkn+-tr(7zp-zp-wq-zp-'6-zp-+-+-+&5+l+pzP-+p%4-+-+-+-+$3+-+-+-zPL#2P+PvL-zP-zP"1tR-+Q+-mK-![xabcdefghy

22.¥g5!! Decoy: d7 £xg5 [ 22...£xg5 23.£xd5+Double attack ( 23.£xd5+ Decoy )]

[ 22...-- 23.£xd5+ Mate threat ] 23.£xd5+ ¤d6

[ 23...¢e7 24.£xb5 ¢f8+- ] 24.£a8+ ¢e7 25.exd6+

[ 25.exd6+ ¢f7 26.£xh8+- ]1-0

C65Ito,KatsuhideMasui,Iroha


C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5

1.e4 e5 2.¤f3 ¤c6 3.¥b5 ¥c5 4.0-0 ¤f6 5.¦e1 Diagram

(Diagram)

last book move 0-0 [ 5...a6 6.¥xc6 dxc6 7.h3= ( ‹7.¤xe5 £d4 8.¤f3 £xf2+ 9.¢h1 ¥g4³ )]

6.c3 Covers b4 a6 [ 6...d6 7.d4 ¥b6 8.h3= ]

7.¥a4


XABCDEFGHY8r+lwqk+-tr({7zppzpp+pzpp'6-+n+-sn-+&5+Lvl-zp-+-%4-+-+P+-+$3+-+-+N+-#2PzPPzP-zPPzP"1tRNvLQtR-mK-!xabcdefghy

[ ¹7.¥xc6!? is an interestingalternative bxc6 8.¤xe5± ]

7...b5= Black threatens to win material:b5xa4 8.¥c2 d6

[ 8...d5!? 9.d4 dxe4 10.dxc5 exf3 11.£xf3 ¥b7= ]

9.h3= Controls g4 ¥e6? [ ¹9...¥b6!?= is a viable option ]

10.d4± DiagramXABCDEFGHY8r+-wq-trk+({7+-zp-+pzpp'6p+nzplsn-+&5+pvl-zp-+-%4-+-zPP+-+$3+-zP-+N+P#2PzPL+-zPP+"1tRNvLQtR-mK-!xabcdefghy

¥c4?? solves nothing [ ¹10...exd4 11.cxd4 ¥b4± ]

11.dxc5+- ¦e8 [ 11...dxc5 doesn't change anythinganymore 12.¤bd2 ¥e6 13.¤g5+- ]

12.b3 ¥e6 13.b4 [ 13.cxd6 seems even better cxd6 14.a4 £e7+- ]

13...£c8 [ 13...dxc5 is not the saving move 14.£xd8 ¦exd8 15.bxc5+- ]

14.cxd6 £d8 [ 14...cxd6 cannot undo what hasalready been done 15.¥g5+- ]

15.dxc7 £xc7 16.¤g5 [ 16.a4!? keeps an even firmer grip ¦ed8 17.£e2 ¥c4+- ]

16...¦ed8 17.£f3 [ ¹17.¤d2 makes it even easier forWhite ¥c4+- ]

17...¦d7 [ 17...¤xb4 hoping against hope 18.cxb4 £xc2 19.¤xe6 fxe6+- ]

18.¤xe6 fxe6 19.¥b3 £d8 [ 19...¤d8 does not improve anything 20.a4 ¦b8 21.axb5 axb5 22.¥g5+- ]

20.¥xe6+ ¢f8 [ 20...¢h8 is no salvation 21.¥xd7 £xd7 22.¦d1+- ]

21.¥xd7 £xd7 22.¦d1 £e8 [ 22...£f7 doesn't change theoutcome of the game 23.a4 bxa4

24.¥g5+- ] 23.¥g5 ¢g8

[ 23...£h5 does not win a prize 24.£xh5 ¤xh5 25.a4+- ]

24.¥xf6 £g6 25.¥h4 £h6 26.¦d7 [ 26.£g4!? might be the shorter path ¦f8 27.a4 bxa4 28.¦xa4 ¤b8+- ]

26...£c1+ 27.¦d1 White threatens towin material: Rd1xc1

[ 27.¢h2 and White can alreadyrelax £f4+ 28.£g3 ¦a7 29.£xf4

exf4 30.¦xa7 ¤xa7+- ] 27...£h6 28.¤a3

[ ¹28.£g4 and the rest is a matter oftechnique ¦f8 29.a4 bxa4 30.¦xa4

¤b8+- ] 28...£xh4 29.¦d7 £h6

[ 29...¦f8 is not much help 30.£e3 £f4 31.£xf4 exf4 32.¦ad1+- ]


30.¦ad1 ¤b8 31.¦d8#1-0

A01Masui,HirakuShibuya,Kaisei


A01: Nimzowitsch-Larsen Opening 1.b3 e5 2.¥b2 ¤c6 3.e3 a6DiagramXABCDEFGHY8r+lwqkvlntr(7+pzpp+pzpp'6p+n+-+-+&5+-+-zp-+-%4-+-+-+-+$3+P+-zP-+-#2PvLPzP-zPPzP"1tRN+QmKLsNR![xabcdefghy

last book move 4.¤f3 d6 [ 4...e4 5.¤e5= ]

5.d4² exd4 6.¤xd4 ¤xd4 [ 6...¤f6 7.¥d3= ]

7.¥xd4 [ 7.£xd4 ¤f6² ]

7...¤f6= 8.¥c4 [ 8.¥e2 ¥e7= ]

8...g6 [ 8...d5 9.¥e2= ]

9.£f3 White threatens to win material:Qf3xf6 ¥g7 10.h3 Secures g4 0-0Black castles and improves king safety

11.0-0 c6 Consolidates b5+d5 12.¤d2 d5 Black threatens to win material:d5xc4 13.¥d3 ¦e8 Diagram

14.e4?? throwing away the advantage [ ¹14.¦ae1= is the best chance ]

XABCDEFGHY8r+lwqr+k+(7+p+-+pvlp'6p+p+-snp+&5+-+p+-+-%4-+-vL-+-+$3+P+LzPQ+P#2P+PsN-zPP+"1tR-+-+RmK-![xabcdefghy

14...dxe4-+ 15.¤xe4 [ 15.¥xf6 exf3 16.¥xd8 fxg2 17.¦fe1 ¦xd8 18.¦ab1-+ ]

15...£xd4 16.¤xf6+ £xf6 17.£xf6 ¥xf6 18.¦ae1 ¥d7 19.¦d1 ¦ad8 20.c4

[ 20.¦fe1 doesn't get the cat off thetree ¥e6-+ ]

20...b5 [ 20...¢g7 keeps an even firmer grip 21.a3-+ ]

21.cxb5 cxb5 22.¦fe1 ¦xe1+ 23.¦xe1 ¦e8

[ 23...¥c6 might be the shorter path 24.¦c1 ¦d6 25.¢f1-+ ]

24.¦d1 ¢g7 25.¥xg6 hxg6 [Instead of 25...fxg6 26.¦xd7+ ¦e7 27.¦d2-+ ]

26.¦xd7 ¦e2 27.a4 ¥e5 [ ¹27...bxa4 and Black can alreadyrelax 28.bxa4 ¦a2 29.f3-+ ]

28.¢f1 bxa4 [ ¹28...¦b2 might be the shorter path 29.axb5 axb5 30.¦d5-+ ]

29.bxa4?? causes even greaterproblems.

[ ¹29.¢xe2 a3 30.¦a7∓ ] 29...¦a2-+ 30.¦d5 ¥c7 31.¦d4 ¥b6 32.¦f4 g5 33.¦f5

[ 33.¦g4 a fruitless try to alter thecourse of the game ¦xf2+ 34.¢e1


¢f6-+ ] 33...¢g6 34.g4

[ 34.¦d5 cannot change destiny ¦xf2+ 35.¢e1 f6-+ ]

34...¦xa4 35.¦d5 ¦a1+ 36.¢g2 a5 [ ¹36...f6-+ secures victory ]

37.¦d6+= White forks: b6+g6 ¢g7 38.¦xb6 a4 39.¦a6 a3 Pushes thepassed pawn 40.¢g3 a2 41.¢g2 f6

42.f3 ¢f7 43.¢f2?? [ 43.¦a7+ ¢f8³ ]

43...¢g6 [ 43...¦h1 makes it even easier forBlack 44.¦xa2 ¦h2+ 45.¢g3 ¦xa2

46.h4-+ ] 44.¦a5??

[ 44.¢g2 ¢g7³ ] 44...¢f7 45.¢e2?? instead of simplywinning the game

[ ¹45.¦a6= would hold out ] 45...¢e7

[ 45...¦g1 seems even better 46.¦a7+ ¢g6 47.¢f2-+ ]

46.¢d2 [ 46.¦a7+ does not help much ¢d6 47.¦a6+ ¢d5 48.¢f2-+ ( 48.¦xf6 ¦e1+ 49.¢xe1 a1£+ 50.¢f2 £xf6 51.¢g2 £f4 52.h4 gxh4 53.¢g1 £xf3 54.¢h2 h3 55.g5 £g2# )]

46...¢f7 47.¦a6?? ruins a clearlysuperior position

[ 47.¢e2 ¦g1 48.¦a8 ¢g6-+ ] 47...¢g6

[ 47...¦h1 keeps an even firmer grip 48.¦a8-+ ]

48.¦a5?? [ 48.¢c2 ¦f1 49.¦xa2 ¦xf3³ ]

48...¢f7 Twofold repetition [ ¹48...¦g1-+ and the result of thegame is clear: Black will win ]

49.¢c2 ¦h1 Black threatens to winmaterial: Rh1xh3 50.¦xa2 ¦xh3

51.¦a3 ¢g6 52.¢d2 f5 53.¦a6+ ¢f7 54.¦a7+ ¢f6 55.¦a6+ ¢e7 56.¦a7+ ¢f6 57.¦a6+ ¢f7

Twofold repetition 58.¢e2 fxg4 59.fxg4 ¦g3 60.¦a7+ ¢f6 61.¦a6+ ¢e5 62.¦a5+ ¢f4 Black threatens towin material: Kf4xg4 63.¦a4+ ¢e5

64.¦a5+ ¢f6 65.¦a6+Twofold repetition ¢e7 66.¦a7+ ¢d6

67.¦a6+ ¢c7 68.¦a4 ¢d6 69.¢f2White threatens to win material:Kf2xg3 ¦b3 70.¦a6+ ¢e5 71.¢g2

¦b2+ 72.¢g3½-½

B19Ito,KatsuhideManabe,Hiroaki


B19: Classical Caro-Kann: 4...Bf5 mainline

1.e4 c6 2.d4 d5 3.¤c3 dxe4 4.¤xe4 ¥f5 5.¤g3 ¥g6 6.h4 h6 7.¤f3 ¤f6 8.¥d3 ¥xd3 9.£xd3 e6 10.¥f4 ¤bd7 11.0-0-0 £a5 12.¢b1 ¥e7 DiagramXABCDEFGHY8r+-+k+-tr(7zpp+nvlpzp-'6-+p+psn-zp&5wq-+-+-+-%4-+-zP-vL-zP$3+-+Q+NsN-#2PzPP+-zPP+"1+K+R+-+R![xabcdefghy

last book move. White has an activeposition 13.¦he1 0-0-0 14.¤f5??White is ruining his position

[ 14.¦e2 ¤d5 15.¥d2 £c7² ] 14...¥b4?? gives the opponent


counterplay [ ¹14...£xf5 Black missed thisexcellent chance 15.£xf5 exf5

16.¦xe7 ¤d5 17.¦xd7 ¦xd7-+ ] 15.c3

[ ¹15.¤d6+!? is worthy ofconsideration ¥xd6 16.¥xd6² ]

15...£xf5³ 16.£xf5 exf5 17.cxb4 ¤d5 Black threatens to win material:Nd5xf4. The knight is not easily drivenfrom d5 18.¥d6

[ 18.¥e5 ¤7f6³ ] 18...¦he8

[ 18...¤7f6 19.¥e7 ¦dg8 20.¥xf6 gxf6 21.g3∓ ]

19.¤e5= ¤xe5 DiagramXABCDEFGHY8-+ktrr+-+(7zpp+-+pzp-'6-+pvL-+-zp&5+-+nsnp+-%4-zP-zP-+-zP$3+-+-+-+-#2PzP-+-zPP+"1+K+RtR-+-![xabcdefghy

20.¥xe5? [ ¹20.dxe5 and White can hope tolive a6 21.a4= ]

20...f6-+ 21.¥h2 ¤xb4 22.¦xe8 ¦xe8 23.¥d6 ¤d5 24.¢c1 ¢d7 25.¥h2

[ 25.¥a3 g6-+ ] 25...¦e2 26.¦d2 ¦e4 27.¢d1

[ 27.g3 ¦e1+ 28.¦d1 ¦xd1+ 29.¢xd1 ¤b4-+ ]

27...¦xh4 28.¥b8 a6 29.¦e2 [ 29.¢e2 is not the saving move ¦e4+ 30.¢d3 ¦e8-+ ]

29...¦xd4+ 30.¢e1 ¦e4 31.¥a7 [ 31.f3 doesn't change anything

anymore ¦xe2+ 32.¢xe2 h5-+ ] 31...¤f4 32.¦xe4 fxe4 33.g3

[ 33.¢f1 does not improve anything ¤d3-+ ]

33...¤d3+ 34.¢d2 [ 34.¢e2 doesn't do any good ¤xb2 35.¥c5 ¢e6-+ ]

34...¤xb2 35.¢c3 [ 35.¥c5 does not solve anything ¤c4+ 36.¢e2 ¤d6-+ ]

35...¤a4+ [ 35...¢c7 makes it even easier forBlack 36.¢d4 b6 37.¢xe4-+ ]

36.¢b4 [ 36.¢b3 does not save the day b5-+ ]

36...b5 37.¢a5 [ 37.¢b3 doesn't get the bull off theice c5 38.¥b8 c4+ 39.¢b4 g5-+ ]

37...¤c3 [ ¹37...c5 and Black can celebratevictory 38.g4 ¢c6 39.¥b8-+ ]

38.a3 ¤b1 39.¥c5 [ 39.¢b4 doesn't improve anything h5 40.¢c5 ¤xa3-+ ]

39...¤d2 [ 39...h5!? seems even better 40.a4 g5 41.¥a7-+ ]

40.¢xa6 [ 40.¥f8 g5 41.¥xh6 ¤c4+ 42.¢xa6 ¢e7-+ ]

40...¢e6 [ 40...h5 and Black can already relax 41.¥d4-+ ]

41.¢b6 [ 41.¥f8 cannot change what is instore for ? f5 42.¢b6 f4 43.gxf4

¤c4+ 44.¢xc6 h5-+ ] 41...¢d5 42.¥b4

[ 42.¥f8 praying for a miracle ¤c4+ 43.¢a6-+ ]

42...¤c4+ 43.¢c7 c5 44.¥c3 ¤xa3 [ 44...¤xa3 45.¢b7 b4-+ ]

0-1


C62Nishimori,ToshiyukiTakeda,Keigo


C62: Ruy Lopez: Steinitz Defence 1.e4 e5 2.¤f3 ¤c6 3.¥b5 d6 4.0-0 ¥g4 5.c3 ¤f6 6.d3 ¥e7 7.¤bd2 0-0 8.¦e1 DiagramXABCDEFGHY8r+-wq-trk+({7zppzp-vlpzpp'6-+nzp-sn-+&5+L+-zp-+-%4-+-+P+l+$3+-zPP+N+-#2PzP-sN-zPPzP"1tR-vLQtR-mK-!xabcdefghy

last book move £d7 9.¤f1 a6 10.¥a4 b5 Black threatens to winmaterial: b5xa4 11.¥b3 ¥xf3

[ 11...d5!?= looks like a viablealternative ]

12.£xf3² White has the pair of bishops £g4? Diagram

[ 12...a5 13.a4 b4 14.¤e3± ]

(Diagram)

13.£e3?? hands over the advantageto the opponent

[ ¹13.£xg4 White had this greatchance ¤xg4 14.¥d5+- ]

13...¤h5 [ 13...a5 14.h3 £d7 15.£g3² ]

14.¥d5 White threatens to winmaterial: Bd5xc6

[ 14.¤g3 ¤xg3 15.£xg3 £xg3

XABCDEFGHY8r+-+-trk+(7+-zp-vlpzpp'6p+nzp-sn-+&5+p+-zp-+-%4-+-+P+q+$3+LzPP+Q+-#2PzP-+-zPPzP"1tR-vL-tRNmK-![xabcdefghy

16.hxg3 ¤a5² ] 14...¤f4² Black has a mate threat 15.¤g3 ¤xd5 16.exd5 ¥g5??

[ ¹16...¤b8² this is the best bet tosave the position ]

17.£xg5+- £xg5 18.¥xg5 ¤b8 19.a4 bxa4

[ 19...¤d7 a fruitless try to alter thecourse of the game 20.¤f5+- ]

20.¦xa4 ¤d7 21.¦ea1 [ ¹21.b4 and White can alreadyrelax f5 22.¥d2 h5+- ]

21...¤b8 [ 21...f6 doesn't do any good 22.¥d2 ¤c5 23.¦4a3 ¤xd3 24.b4+- ]

22.b4 ¦c8 [ 22...f5 doesn't get the bull off theice 23.¥d2+- ]

23.b5! Deflection: a6 a5 [ 23...axb5 24.¦a5 Double attack ( 24.¦xa8 Pinning ; 24.¦xa8Deflection ; 24.¦a5 Decoy )]

24.¦xa5 ¦xa5 25.¦xa5 ¤d7 [ 25...f6 doesn't change the outcomeof the game 26.¥d2 ¤d7 27.¦a7+- ]

26.¢f1 [ 26.¤f5!? seems even better ¦b8 27.¤e7+ ¢f8+- ]

26...h6 [ 26...g6 does not win a prize 27.¦a7 f5 28.¢e2+- ]


27.¥d2 ¤b6 [ 27...¤c5 doesn't get the cat off thetree 28.¢e2+- ]

28.c4 ¦a8 [ 28...¢h7 does not help much 29.¦a6+- ]

29.¦xa8+ [ 29.¦a6!? and White can alreadyrelax g6+- ]

29...¤xa8 30.¥a5 ¢f8 31.¢e2 ¢e8 [ 31...g6 hardly improves anything 32.d4! Decoy: d4 exd4 33.¢d3+- ]

32.¤e4 [ ¹32.¤f5!? makes it even easier forWhite g6 33.¤xh6 ¢e7+- ]

32...¢d7 33.¢e3 g6 [ 33...f5 doesn't improve anything 34.¤c3+- ]

34.g4 ¢d8 [ 34...¢e7 cannot undo what hasalready been done 35.f4 f6

36.¢f3+- ] 35.h4

[ ¹35.¤xd6 might be the shorterpath ¢e7 36.¤b7 f5+- ]

35...f5 [ 35...¢d7+- is still a small chance ]

36.gxf5 gxf5 37.¤f6 ¢e7 38.¤g8+ ¢f7 39.¤xh6+ ¢g6 40.¤xf5!an unpleasant surprise ¢xf5 41.¢f3

¢g6 42.¢g4 ¢h6 43.¥d2+ [ 43.c5 ¢g7 44.¥xc7 ¤xc7+- ]

43...¢g6 44.f4 exf4 45.¥xf4 ¢f6 46.¥e3 ¢g6

[ 46...¢e7 does not save the day 47.h5 c6 48.dxc6 ¤c7 49.b6 ¤e8 50.¥g5+ ¢f8 51.c7 ¤xc7 52.bxc7 ¢f7 53.c8£ d5 54.£f5+ ¢g8 55.¥h6 dxc4 56.£d7 cxd3 57.£g7# ]

47.¥d4 ¢h6 [ 47...¢f7 cannot change what is instore for ? 48.h5 c6 49.dxc6 d5

50.b6 dxc4 51.b7 ¤c7 52.b8£ cxd3 53.£xc7+ ¢f8 54.¥f6 d2

55.£e7+ ¢g8 56.£g7# ] 48.h5 ¢h7 49.¢g5

[ 49.¢g5 c5 50.dxc6 ¤c7 51.¢f5 ¢h6 52.b6 ¤e6 53.¢xe6 ¢xh5 54.b7 ¢g4 55.b8£ ¢f4 56.£xd6+ ¢f3 57.£h2 ¢g4 58.£g2+ ¢f4 59.£h3 ¢g5 60.¥e3+ ¢g6 61.£h6# ]

1-0

C55Sato,YasujiKobayashi,Katsuhiko



1.e4 e5 2.¤f3 ¤c6 3.¤c3 ¤f6 4.¥c4 ¥e7 5.0-0 0-0 6.¦e1 d6 7.h3 ¥d7 8.d4 exd4 9.¤xd4 DiagramXABCDEFGHY8r+-wq-trk+({7zppzplvlpzpp'6-+nzp-sn-+&5+-+-+-+-%4-+LsNP+-+$3+-sN-+-+P#2PzPP+-zPP+"1tR-vLQtR-mK-!xabcdefghy

last book move ¤xd4 10.£xd4 c5 11.£d3 ¦e8 12.£f3

[ 12.¥f4 £a5± ] 12...¥e6 13.¤d5

[ 13.¥b5 ¤d7± ] 13...¤xd5² 14.exd5 ¥d7 Black has acramped position 15.¥d3 ¥f6

16.¦xe8+ £xe8 17.£e4 [ ¹17.¥f4 and White hangs on £e7


18.£g3² ] 17...£xe4∓ 18.¥xe4 ¦e8 19.f3 ¥d4+ 20.¢f1 ¥b5+ 21.¢e1?? cause moregrief

[ ¹21.¥d3 ¥xd3+ 22.cxd3∓ ] 21...f5-+ 22.c3 ¥f6

[ 22...fxe4?! is clearly worse 23.cxd4 exf3+ 24.¢f2 fxg2 25.¢xg2-+ ]

23.a4 [ 23.¥f4 doesn't get the cat off thetree fxe4 24.¢f2 exf3 25.¢xf3 ¥e5

26.¥xe5 ¦xe5-+ ] 23...¥d7

[ ¹23...¥c4!? seems even better 24.¥f4 fxe4 25.¢f2 exf3 26.¢xf3 ¥xd5+ 27.¢f2-+ ]

24.¢f2 fxe4 25.f4 [ 25.¥f4 doesn't do any good ¥h4+ 26.¢e2 exf3+ 27.¢xf3 ¦f8-+ ]

25...¥h4+ [ 25...¢f7 seems even better 26.¦a3-+ ]

26.g3 [ 26.¢e2 does not improve anything g6-+ ]

26...¥f6 27.h4 [ 27.g4 cannot change destiny g6-+ ]

27...¥g4 28.a5 ¢f7 29.¦a4 [ 29.¥e3 does not save the day ¦e7-+ ]

29...¥d1 30.¦a3 ¥c2 31.b4 [ 31.¢e3 cannot undo what hasalready been done ¥d3-+ ]

31...cxb4 32.cxb4 ¥d4+ [ ¹32...¥d3!? keeps an even firmergrip 33.¥e3 a6 34.¦a2-+ ]

33.¥e3 ¥xe3+ 34.¢xe3 ¦c8 35.¢d4 ¥d3 36.¦c3

[ 36.b5-+ the last chance forcounterplay ]

36...¦xc3 37.¢xc3 ¢f6 38.g4 ¥e2 [ 38...h5 39.a6 bxa6 40.gxh5-+ ]

39.¢d4 ¥d3 Diagram 40.¢e3?? lets it slip away

[ 40.¢c3 h5 41.gxh5-+ ]

XABCDEFGHY8-+-+-+-+(7zpp+-+-zpp'6-+-zp-mk-+&5zP-+P+-+-%4-zP-mKpzPPzP$3+-+l+-+-#2-+-+-+-+"1+-+-+-+-![xabcdefghy

40...h6 [ 40...h5!? makes it even easier forBlack 41.f5-+ ]

41.¢d4 g5 42.hxg5+ [ 42.fxg5+ does not solve anything hxg5 43.h5 a6-+ ]

42...hxg5 43.f5 ¥b1 44.b5 [ 44.¢e3 doesn't get the bull off theice ¢e5-+ ]

44...¥d3 45.b6 axb6 46.axb6 ¥b1 47.¢e3 ¢e5 48.¢e2

[ 48.¢d2 does not win a prize ¥a2 49.¢e3 ¥b3 50.¢e2 ¢d4 51.¢d2 e3+ 52.¢e2 ¥xd5 53.f6 ¥f7 54.¢f1 ¢d3 55.¢g2 ¥d5+ 56.¢g3 e2 57.¢f2 ¢d2 58.¢g1 e1£+ 59.¢h2 £f2+ 60.¢h3 £h4# ]

48...¢xd5 49.f6 [ 49.¢f2 cannot change what is instore for ? ¢e5 50.f6 ¢xf6 51.¢g2 ¥d3 52.¢f2 ¢e6 53.¢g2 ¢d5 54.¢g3 ¢c5 55.¢g2 e3 56.¢f3 ¢d4 57.¢g2 ¢c3 58.¢f3 e2 59.¢f2 ¢d2 60.¢g3 e1£+ 61.¢g2 ¥e4+ 62.¢h2 ¢e3 63.¢h3 £h4# ]

49...¢e6 50.f7 ¢xf7 51.¢e3 [ 51.¢d2 a fruitless try to alter thecourse of the game ¢e7 52.¢d1

¢e6 53.¢e2 ¥d3+ 54.¢f2 ¢e5 55.¢e3 ¥c4 56.¢d2 ¥f1 57.¢d1 e3 58.¢c2 ¢d4 59.¢b2 ¥b5


60.¢b1 ¢c3 61.¢a2 e2 62.¢a3 e1£ 63.¢a2 d5 64.¢a3 £a1# ]

51...¢e6 52.¢d4 [ 52.¢f2 cannot change destiny ¢e5 53.¢f1 ¥d3+ 54.¢e1 e3 55.¢d1 ¢d4 56.¢e1 ¢c3 57.¢d1 e2+ 58.¢e1 ¢c2 59.¢f2 ¢d2 60.¢g3 e1£+ 61.¢g2 ¥e4+ 62.¢h2 ¢e3 63.¢h3 £h4# ]

52...¥d3 53.¢e3 [ 53.¢c3 does not solve anything ¢e5 54.¢d2 ¢d4 55.¢d1 e3 56.¢e1 ¢c4 57.¢d1 ¢c3 58.¢e1 e2 59.¢f2 ¢d2 60.¢g3 e1£+ 61.¢h3 ¥f1+ 62.¢h2 £e4 63.¢g3 £f4# ]

53...¢d5 54.¢d2 [ 54.¢f2 is no salvation ¢d4 55.¢g1 e3 56.¢g2 ¢c3 57.¢f3 e2 58.¢f2 ¢d2 59.¢f3 e1£ 60.¢g2 ¥e4+ 61.¢h2 ¢e3 62.¢h3 £h4# ]

54...¢c5 [ 54...¢c5 55.¢e3 d5 56.¢f2 d4 57.¢g3 e3 58.¢f3 ¥g6 59.¢g2 ¥h7 60.¢f3 ¥c2 61.¢e2 ¢c4 62.¢f3 ¢c3 63.¢e2 ¥e4 64.¢e1 ¥d3 65.¢d1 ¥b5 66.¢e1 ¥c4 67.¢d1 d3 68.¢e1 d2+ 69.¢d1 e2# ] [ 54...¢d4 55.¢e1 e3 56.¢d1 ¢c3 57.¢c1 ¥e2 58.¢b1 ¥c4 59.¢c1 e2 60.¢b1 e1£# ]

0-1

A01Abe,TaiseiShibuya,Kaisei


A01: Nimzowitsch-Larsen Opening 1.b3 e5 2.¥b2 ¤c6 3.e3 a6Diagramlast book move 4.g3 ¥c5

XABCDEFGHY8r+lwqkvlntr(7+pzpp+pzpp'6p+n+-+-+&5+-+-zp-+-%4-+-+-+-+$3+P+-zP-+-#2PvLPzP-zPPzP"1tRN+QmKLsNR![xabcdefghy

[ 4...¤f6 5.¤e2³ ] 5.f4

[ 5.¤f3 £e7= ] 5...f6

[ 5...d6 6.¥g2 ¤f6 7.¤e2³ ] 6.fxe5

[ 6.¤c3 d5= ] 6...fxe5

[ 6...¤xe5? 7.d4 ¥b4+ 8.c3+- ] 7.¥xe5 ¤xe5 Black wins a piece 8.£h5+ White forks: e8+e5 ¢f8

[ ¹8...¤g6 and Black could wellhope to play on 9.£xc5 b6= ]

9.£xe5± ¥e7 [ 9...d5 10.¤c3 ¤f6 11.¥g2± ]

10.¤c3 d6 11.£f4+ ¤f6 12.¥g2 [ 12.¤f3 d5+- ]

12...£e8 [ 12...g6 13.¤ge2± ]

13.¤d5 [ 13.¤ge2 c6+- ]

13...¥d8 14.¤xf6 [ 14.¤f3 £e6 15.¤g5 £e5+- ]

14...¥xf6 15.0-0-0 [ 15.¤f3!? £g6± ]

15...£e5± 16.£xe5 ¥xe5 17.¦f1+ ¥f6 18.¤e2 ¢e8 19.¤f4 ¦f8 20.¦f2 ¦b8 21.¦hf1 ¥d7?

[ ¹21...¥g5!?+- ] 22.¤d5 ¥e6

[ 22...c6 23.¤xf6+ ( 23.¦xf6?! gxf6


24.¤f4 ¢d8= ) 23...gxf6 24.¦xf6 ¦xf6 25.¦xf6+- ]

23.¤xf6+ [ 23.¦xf6?! gxf6 24.¤xc7+ ¢d7± ]

23...gxf6 24.¦xf6 ¦xf6 25.¦xf6 ¥g8 26.¥e4 ¢d7 Diagram

[ 26...d5 27.¥d3+- ]

XABCDEFGHY8-tr-+-+l+(7+pzpk+-+p'6p+-zp-tR-+&5+-+-+-+-%4-+-+L+-+$3+P+-zP-zP-#2P+PzP-+-zP"1+-mK-+-+-![xabcdefghy

27.¥xh7! Decoy: h7 ¥xh7 [ 27...¢e7 is not the saving move 28.¦h6 ¥e6 29.¥g6+- ]

28.¦f7+ ¢e6 [ 28...¢c6 is not much help 29.¦xh7 ¦f8 30.e4+- ]

29.¦xh7 b5 30.¦h4 ¢e5 31.¦f4 ¦g8 32.¢d1 ¦g5

[ 32...c5 is no salvation 33.¢e2+- ] 33.¢e2 ¦f5

[ 33...¦g6+- what else? ] 34.¦xf5+ ¢xf5 35.¢f3 d5 36.h4 ¢g6 37.g4

[ 37.b4 keeps an even firmer grip ¢f5+- ]

37...¢f6 38.¢f4 White prepares theadvance g5 ¢g6 39.h5+ ¢h6

40.¢f5 [ ¹40.b4+- might be the shorterpath ]

40...c6 41.b4 ¢g7 42.g5 ¢h7 43.¢f6 ¢g8

[ 43...a5 doesn't improve anything

44.bxa5 ¢g8 45.a6 ¢f8 46.a7 ¢e8 47.a8£+ ¢d7 48.£b7+ ¢d8 49.¢e6 ¢e8 50.£e7# ]

44.g6 c5 [ 44...¢f8 does not help much 45.g7+ ¢e8 46.g8£+ ¢d7 47.h6 ¢c7 48.h7 ¢b7 49.£f7+ ¢b6 50.h8£ c5 51.£c8 cxb4 52.£cc7# ]

45.bxc5 a5 [ 45...¢f8 doesn't change anythinganymore 46.g7+ ¢e8 47.g8£+

¢d7 48.h6 ¢c7 49.h7 d4 50.£e6 d3 51.h8£ dxc2 52.£hc8# ]

46.c6 d4 [ 46...b4 doesn't change the outcomeof the game 47.c7 b3 48.c8£# ]

47.c7 [ 47.c7 dxe3 48.c8£# ]

1-0

B10Masui,IrohaMasui,Hiraku


B10: Caro-Kann: 2 d3 and 2 c4 1.e4 c6 2.¥c4 d5 3.exd5 cxd5Diagram

(Diagram)

last book move 4.¥b3 e5 White has acramped position. White's piece can'tmove: c1 5.¤f3 White threatens to winmaterial: Nf3xe5

[ 5.d4 exd4 6.£xd4 ¤f6= ] 5...e4³ Black threatens to win material:e4xf3 6.¤d4 White has a crampedposition. White's piece can't move: c1

¥c5 Black threatens to win material:Bc5xd4 7.¤b5

[ ¹7.¤e2!?³ must be considered ]


XABCDEFGHY8rsnlwqkvlntr(7zpp+-zppzpp'6-+-+-+-+&5+-+p+-+-%4-+L+-+-+$3+-+-+-+-#2PzPPzP-zPPzP"1tRNvLQmK-sNR![xabcdefghy

7...¤f6∓ 8.0-0 0-0 [ 8...¥g4 9.£e1 0-0 10.h3-+ ]

9.d3∓ ¥g4 10.£e1 [ 10.£d2!? ¤c6 11.dxe4 dxe4 12.¤1c3∓ ]

10...exd3 11.cxd3 ¦e8 12.£d2?Diagram

[ ¹12.£c3 ¥b6 13.¥g5-+ ]

XABCDEFGHY8rsn-wqr+k+({7zpp+-+pzpp'6-+-+-sn-+&5+Nvlp+-+-%4-+-+-+l+$3+L+P+-+-#2PzP-wQ-zPPzP"1tRNvL-+RmK-!xabcdefghy

12...£b6?? allows the opponent backinto the game

[ 12...¥e2!? and Black can alreadyrelax 13.¤1c3 ¥xf1 14.¢xf1-+ ]

13.¥a4? [ 13.d4 ¥e7 14.¤1c3 a6∓ ]

13...¥e2 [ ¹13...¤c6 14.d4 ¥b4-+ ]

14.¦e1?? another bit of territory lost [ ¹14.¤5c3 ¥xf1 15.¥xe8 ¥xg2 16.¤a4∓ ]

14...¥xf2+-+ 15.¢h1 ¥xe1 16.£xe1 ¥xd3 17.£d2 £f2

[ ¹17...¤e4 might be the shorterpath 18.h3 ¤xd2 19.¥xd2 ¥xb5-+ ]

18.¤5c3 [ ¹18.£xf2 finishes off the opponent ¦e2 19.£h4+- ]

18...¦e1+ [ 18...£f1# ]

19.£xe1 £xe1#0-1

B02Kobayashi,KatsuhikoManabe,Hiroaki


B02: Alekhine's Defence: ChaseVariation and lines with early Nc3

1.e4 ¤f6 2.¤c3 d5 3.exd5 ¤xd5 4.¤xd5 £xd5 5.¤f3 ¥g4 6.¥e2 e6 7.0-0 ¥e7 8.d4 0-0 DiagramXABCDEFGHY8rsn-+-trk+(7zppzp-vlpzpp'6-+-+p+-+&5+-+q+-+-%4-+-zP-+l+$3+-+-+N+-#2PzPP+LzPPzP"1tR-vLQ+RmK-![xabcdefghy

last book move. Black castles andimproves king safety 9.c4White threatens to win material: c4xd5

£d8 10.¥e3 ¤d7


[ 10...¤c6 11.¦c1² ] 11.b3 c5 12.£d2 cxd4 13.£xd4

[ ¹13.¤xd4!? is an interestingalternative ¥xe2 14.£xe2² ]

13...¥xf3³ 14.¥xf3 White has the pairof bishops

[Less advisable is 14.gxf3 ¥f6 15.£e4 ¥xa1 16.¦xa1 £c7∓ ]

14...¥f6 Black threatens to winmaterial: Bf6xd4 15.£e4 ¥xa1

16.¦xa1 Black wins the exchange £f6Black has a mate threat 17.¦d1

[ 17.¥d4 e5 18.¥c3 b6³ ] 17...¤e5∓ DiagramXABCDEFGHY8r+-+-trk+(7zpp+-+pzpp'6-+-+pwq-+&5+-+-sn-+-%4-+P+Q+-+$3+P+-vLL+-#2P+-+-zPPzP"1+-+R+-mK-![xabcdefghy

18.¥d4? [ ¹18.£xb7!? ¦ad8 19.¦c1∓ ]

18...¤xf3+-+ 19.gxf3 £g6+ 20.¢f1 [ 20.£xg6 hxg6 21.¥e3 ¦fd8-+ ]

20...£xe4 21.fxe4 ¦fd8 22.¢e2 f6 23.f4 ¦d7 24.e5?? an oversight. ButWhite was lost anyway.

[ 24.¦d2 ¢f7-+ ] 24...¢f7

[ ¹24...¦ad8 and Black has prevailed 25.¢e3 g5 26.¦g1 ¦xd4 27.exf6-+ ]

25.¢e3 [ 25.¥c3 ¦xd1 26.¢xd1 g5 27.fxg5 ¦d8+ 28.¢e2 fxg5-+ ]

25...¦ad8 26.¦d2 [ 26.h4 ¢g6 27.c5-+ ]

26...g5 27.fxg5 fxe5 [ ¹27...f5 nails it down 28.c5 ¢g6-+ ]

28.¦f2+ ¢g6 29.¥xe5 [ 29.¥xa7 ¦d1 30.¢e4 ¦e1+ 31.¥e3 ¦d4+ 32.¢f3-+ ]

29...¦d3+-+ 30.¢e4 ¦d2 31.¦f6+ ¢xg5 32.h4+?

[ 32.¦xe6 ¦e2+ 33.¢f3 ¦xa2 34.¥f4+ ¢f5 35.¦e5+ ¢f6-+ ]

32...¢xh4 [ ¹32...¢g4 seems even better 33.¦f4+ ¢h5-+ ]

33.¦xe6?? the final mistake, not that itmatters anymore

[ ¹33.¥f4 ¦8d4+ 34.¢f3 ¦2d3+ 35.¥e3-+ ]

33...¢g4 34.¥f6 [ 34.¥f4 otherwise it's curtains atonce ¦8d4+ 35.¢e5 ¦xf4

36.¦h6-+ ] 34...¦e2#0-1

A48Abe,TaiseiNishimori,Toshiyuki


A48: 1 d4 Nf6 2 Nf3 g6: Torre, Londonand Colle Systems

1.d4 ¤f6 2.¤f3 g6 3.¥g5 ¥g7 4.¥xf6 ¥xf6 5.e4 Diagram

(Diagram)

last book move c5 6.e5White threatens to win material: e5xf6

¥g7 7.c3 Black's piece can't move: c8 [ 7.dxc5 ¤c6= ]

7...0-0 8.¥c4 [ 8.dxc5 ¤c6³ ]

8...cxd4∓ 9.cxd4 ¤c6 10.0-0 d5


XABCDEFGHY8rsnlwqk+-tr({7zppzppzpp+p'6-+-+-vlp+&5+-+-+-+-%4-+-zPP+-+$3+-+-+N+-#2PzPP+-zPPzP"1tRN+QmKL+R!xabcdefghy

[ 10...d6!?∓ ] 11.¥e2³ £b6 Black threatens to winmaterial: Qb6xb2 12.£d2

[ 12.¤c3!?³ deserves consideration ] 12...¥g4∓ 13.¦d1 ¦ac8

[ 13...f6 14.¤c3 e6 15.¤a4∓ ] 14.¤a3

[ 14.¤c3!? should be investigatedmore closely e6 15.h3 ¥xf3

16.¥xf3³ ] 14...¤b4∓ 15.¤e1 ¥f5 Diagram

[ ¹15...¥xe2 16.£xe2 f6 17.exf6 ¦xf6∓ ]

(Diagram)

16.¥d3?? [ ¹16.¤b5 is just about the onlychance ¤c6 17.¦ac1³ ]

16...¤xd3-+ 17.¤xd3 £xd4 18.¤b5 £b6 19.¤c3 ¦fd8 20.£e2 h5 21.¤f4

[ 21.h3 ¥xd3 22.¦xd3 d4-+ ] 21...e6 22.¤b5

[ 22.h3 ¦c4 23.¤d3-+ ] 22...¥g4

[ 22...¥g4 23.£d3 ¥xd1 24.¦xd1 ¥xe5-+ ]

0-1

XABCDEFGHY8-+r+-trk+(7zpp+-zppvlp'6-wq-+-+p+&5+-+pzPl+-%4-sn-zP-+-+$3sN-+-+-+-#2PzP-wQLzPPzP"1tR-+RsN-mK-![xabcdefghy

B33Takeda,KeigoIto,Katsuhiko


B33: Sicilian: Pelikan and SveshnikovVariations

1.e4 c5 2.¤f3 ¤c6 3.d4 cxd4 4.¤xd4 ¤f6 5.¤c3 e5 6.¤f3 ¥b4DiagramXABCDEFGHY8r+lwqk+-tr(7zpp+p+pzpp'6-+n+-sn-+&5+-+-zp-+-%4-vl-+P+-+$3+-sN-+N+-#2PzPP+-zPPzP"1tR-vLQmKL+R![xabcdefghy

last book move. White has a veryactive position 7.¥d3 d5 8.exd5

¤xd5 9.¥d2 0-0 10.h3?? Covers g4 [ 10.0-0 ¥xc3 11.¥xc3 ¤xc3


12.bxc3 £a5³ ] 10...¤f4?? gives the opponentcounterplay

[ ¹10...¥xc3 Black would havegained the upper hand 11.bxc3 e4

12.¥xe4 ¦e8-+ ] 11.¥xf4= exf4 Black has the pair ofbishops. 12.0-0 White castles andimproves king safety ¦e8

[ 12...¥xc3 13.bxc3 £f6 14.¤d4= ] 13.£d2 White threatens to winmaterial: Qd2xf4 ¥d6

[ 13...£f6 14.¤d5 ¥xd2 15.¤xf6+ gxf6 16.¤xd2= ]

14.¤d5 [ 14.¦ad1!?± ]

14...¤e5= 15.¤xe5 [ 15.¤xf4?? the pawn must be leftalone, otherwise White will bepunished ¤xf3+ 16.gxf3 £g5+

17.¢h1 ¥xf4-+ ] 15...¥xe5 16.c3 Consolidates d4

[ 16.¥b5 ¦e6 17.¦ad1 g6= ] 16...£d6

[ 16...£g5 17.¢h1∓ ] 17.¥c4

[ 17.¥e4 £d8= ] 17...b6

[ 17...¥xh3 18.gxh3 £g6+ 19.¢h1 £e4+ 20.f3 £xc4 21.¦fe1-+ ]

18.£c2 [ 18.£d3 ¥b7= ]

18...¥b7 [ 18...f3 19.£d3 fxg2 20.¦fe1∓ ]

19.¦ad1 [ 19.£d3 ¦ad8 20.¦ad1 £e6= ]

19...£c5 Black threatens to winmaterial: Qc5xc4

[ 19...f3 20.gxf3 £c6 21.£d3= ] 20.¥b3 ¦ad8 21.c4

[ 21.£e4 ¢f8³ ] 21...b5 Diagram

[ ¹21...f3∓ ]

22.cxb5??

XABCDEFGHY8-+-trr+k+(7zpl+-+pzpp'6-+-+-+-+&5+pwqNvl-+-%4-+P+-zp-+$3+L+-+-+P#2PzPQ+-zPP+"1+-+R+RmK-![xabcdefghy

[ ¹22.¦fe1= was much better ] 22...£xc2-+

[ 22...¦xd5?! is clearly inferior 23.£xc5 ¦xc5 24.¦d7-+ ]

23.¥xc2 ¥xd5 24.b3 f3 25.gxf3 [ 25.¦d3 is not the saving move ¥b7 ( 25...fxg2?! is clearly worse 26.¦fd1= ) 26.gxf3 ¦xd3 27.¥xd3 ¥xf3-+ ]

25...¥xf3 26.¦xd8 ¦xd8 27.¦e1 f6 [ 27...¥f4 makes it even easier forBlack 28.¥f5 h5 29.¥c2-+ ]

28.¦e3 ¥a8 29.¥e4 ¦d1+ 30.¢g2 ¥xe4+ 31.¦xe4 ¦d2 32.¦a4

[ 32.a4 cannot change what is instore for ? ¥d4 33.¢f1 ¥xf2-+

( 33...¦xf2+?! 34.¢e1 ¥b6 35.a5-+ )]

32...¥d4 33.¢g3 [ 33.¦a6 is not much help ¥b6-+ ]

33...¥xf2+ 34.¢f3 ¥b6 35.a3 [ 35.h4 doesn't do any good ¢f7-+ ]

35...¦d3+ 36.¢e4 [ 36.¢g2 is no salvation ¦xb3 37.¦a6 f5-+ ]

36...¦xh3 37.b4 [ 37.¦c4-+ there is nothing elseanyway ]

37...¦e3+ 38.¢d5 f5 39.¢c6 f4 40.¢b7

[ 40.¦a6 does not win a prize f3


41.¢d5 f2 42.¦xb6 axb6 43.¢d6 f1£ 44.¢c6 £c4+ 45.¢xb6 £c8 46.a4 ¦e6+ 47.¢a7 £c7+ 48.¢a8 ¦e8# ]

40...f3 41.¦a6 [ 41.¦xa7 does not improve anything ¥xa7 42.b6 ¥xb6 43.¢xb6 f2 44.¢c5 f1£ 45.b5 ¦c3+ 46.¢b4 ¦c4+ 47.¢a5 £f8 48.a4 £d6 49.b6 £d5+ 50.¢a6 ¦xa4# ]

41...f2 42.¦xb6 axb6 43.¢xb6 [ 43.¢a6 cannot undo what hasalready been done ¦e6 44.¢b7 f1£

45.a4 £f7+ 46.¢a6 £c7 47.a5 bxa5+ 48.b6 £xb6# ]

43...f1£ 44.¢c6 [ 44.a4 does not solve anything ¦e6+ 45.¢c5 £d3 46.b6 ¦d6 47.b7 £d5# ]

44...£f6+ [ 44...£f6+ 45.¢c5 £e5+ 46.¢c6 ¦c3+ 47.¢d7 ¢f7 48.b6 £d5# ]

0-1

A01Masui,HirakuSato,Yasuji


A01: Nimzowitsch-Larsen Opening 1.b3 e5 2.¥b2 ¤c6 3.e3 ¤f6 4.¥b5 d6 5.¤f3 Diagram

(Diagram)

last book move ¥g4 [ 5...¥e7 6.¤c3³ ]

6.h3 White threatens to win material:h3xg4 ¥h5 7.d4 e4 8.d5 exf3

[ ¹8...a6 9.dxc6 axb5 10.cxb7 ¦b8= ]

9.gxf3?? there were better ways tokeep up the pressure

XABCDEFGHY8r+lwqkvl-tr({7zppzp-+pzpp'6-+nzp-sn-+&5+L+-zp-+-%4-+-+-+-+$3+P+-zPN+-#2PvLPzP-zPPzP"1tRN+QmK-+R!xabcdefghy

[ ¹9.g4 ¥g6 10.dxc6± ] 9...a6-+ 10.dxc6 axb5 11.cxb7 ¦b8 12.a4 ¦xb7 13.a5

[ 13.¤c3 bxa4 14.¤d5 ¤e4 15.¦xa4 ¤c5-+ ]

13...¥e7 [ 13...¦a7 seems even better 14.¦g1-+ ]

14.a6 ¦a7 15.¥d4 [ 15.¦g1 £a8 16.¦xg7-+ ]

15...c5 16.¥xf6 [ 16.¥b2 cannot change what is instore for ? 0-0 17.¦g1 £a8-+ ]

16...¥xf6 17.¦a2 0-0 [ 17...£a8 might be the shorter path 18.£xd6 ¦d7 19.£f4 ¥xf3 20.0-0-+ ]

18.£d3 [ 18.£d5 does not help much ¥g6-+ ]

18...b4 [ 18...¥xf3 keeps an even firmer grip 19.¦g1 ¥c6 20.¤c3-+ ]

19.¤d2 ¥c3 20.£f5 Diagram [ 20.£d5 does not win a prize £h4 21.¦g1 £xh3-+ ]

(Diagram)

20...¥xd2+ [ ¹20...£h4 ends the debate


XABCDEFGHY8-+-wq-trk+({7tr-+-+pzpp'6P+-zp-+-+&5+-zp-+Q+l%4-zp-+-+-+$3+Pvl-zPP+P#2R+PsN-zP-+"1+-+-mK-+R!xabcdefghy

21.¦h2-+ ] 21.¢xd2 ¥g6 22.£g4

[ 22.£d5 doesn't get the cat off thetree £c8 23.h4 ¦e8-+ ( ‹23...¦xa6

24.¦xa6 £xa6 25.h5 ¥xc2 26.¢xc2-+ )]

22...£b6 [ 22...£f6 makes it even easier forBlack 23.¢e2 d5 24.£f4-+ ]

23.£c4 [ 23.¦ha1 cannot undo what hasalready been done d5 24.£f4

¦fa8-+ ] 23...¦d8

[ 23...d5 and Black can already relax 24.£f4-+ ]

24.e4 [ 24.£d5 does not save the day ¦xa6 25.¦ha1 ¦a3-+ ]

24...£c6 [ 24...¥h5 and Black can alreadyrelax 25.£d3 d5 26.exd5 £h6+

27.£e3 ¦xa6 28.£xh6 ¦xh6 29.f4-+ ]

25.¢c1 [ 25.¦d1 doesn't change the outcomeof the game ¦da8-+ ]

25...d5 [ 25...¦da8 seems even better 26.¢d2-+ ]

26.exd5

[ 26.¦d1 doesn't change anythinganymore d4-+ ( 26...dxc4??is refuted decisively by mate in 2

27.¦xd8+ £e8 28.¦xe8# )] 26...¦xd5 27.¦e1 f6

[ ¹27...h6!? keeps an even firmergrip 28.¦a5-+ ]

28.¦a5 ¥f7 29.£b5 £xb5 30.¦xb5 g5

[ 30...¥h5 might be the shorter path 31.¦e6 ¥xf3 32.¢b2-+ ]

31.¦b8+ [ 31.¦b6 c4! finishing him off 32.bxc4 ¦a5 33.¦xb4 ¦a1+ 34.¦b1 ¦1xa6-+ ]

31...¢g7 32.¦b6 ¥h5 [ ¹32...c4 makes it even easier forBlack 33.bxc4 ¦a5 34.¢b2 ¦5xa6

35.¦xb4-+ ] 33.¦b7+?

[ ¹33.f4-+ ] 33...¦xb7 34.axb7 ¦d8 35.¦e7+ ¢h6

[ ¹35...¢g6 keeps an even firmergrip 36.f4 gxf4 37.¢b2-+ ]

36.¦c7 [ 36.f4 doesn't improve anything gxf4 37.¦e4 ¥f3 38.¦xf4 ¥xb7 39.¦xf6+ ¢g7-+ ]

36...¥xf3 37.¦c8 [ 37.¦xc5 is not the saving move ¥xb7 38.¦c4 ¥g2-+ ]

37...¦d1+ 38.¢b2 ¥xb7 39.¦xc5 ¦d2 40.¦c4 ¦xf2 41.¦xb4 ¥g2 42.¦d4

[ 42.h4 doesn't do any good ¢h5 43.hxg5 fxg5-+ ]

42...¥xh3 43.b4 [ 43.¢c3 hardly improves anything g4-+ ]

43...¦f4 44.¢c3 [ 44.¦d3 is the last straw ¦xb4+ 45.¢c3-+ ]

44...¦xd4 45.¢xd4 ¥f1 46.c4 g4 47.c5 g3 48.¢e3 ¢g5 49.¢f3 ¢h4


50.c6 ¢h3 Black intends g2 51.c7 [ 51.¢e3 doesn't change theoutcome of the game g2 52.¢f2

¢h2 53.¢e3 g1£+ 54.¢d2 £d4+ 55.¢c2 ¥d3+ 56.¢b3 ¥c4+ 57.¢c2 £d3+ 58.¢b2 £d2+ 59.¢b1 ¥b3 60.b5 £c2+ 61.¢a1 £a2# ]

51...¥a6 52.b5 [ 52.¢e3 doesn't get the cat off thetree g2 53.¢e4 g1£ 54.¢d5 £b6

55.b5 £xb5+ 56.¢d6 ¥b7 57.¢e7 £c6 58.c8£+ ¥xc8 59.¢f7 £c7+ 60.¢xf6 ¢g3 61.¢g5 £d6 62.¢h5 £g6# ]

52...¥b7+ 53.¢e2 g2 54.c8£+ [ 54.¢d1 hardly improves anything g1£+ 55.¢c2 £h2+ 56.¢c1 £xc7+ 57.¢d2 £a5+ 58.¢d3 £xb5+ 59.¢d4 £b4+ 60.¢d3 ¢g2 61.¢c2 ¥e4+ 62.¢c1 ¢f2 63.¢d1 £e1# ]

54...¥xc8 55.b6 [ 55.¢f2 a fruitless try to alter thecourse of the game ¢h2 56.¢e2

g1£ 57.¢d2 £g5+ 58.¢d3 £xb5+ 59.¢c2 £c5+ 60.¢d2 £d4+ 61.¢c2 ¥f5+ 62.¢b3 £c5 63.¢b2 £b4+ 64.¢c1 £c3+ 65.¢d1 ¥g4# ]

55...¥b7 [ 55...g1£ 56.¢d2 £xb6 57.¢c3 £c6+ 58.¢d3 ¥f5+ 59.¢e3 £c3+ 60.¢f2 £d2+ 61.¢f3 £e1 62.¢f4 £f2# ]

56.¢d3 [ 56.¢f2 doesn't improve anything ¢h2 57.¢e3 g1£+ 58.¢d2 £f2+ 59.¢c3 £xb6 60.¢d2 £b3 61.¢c1 £c3+ 62.¢b1 £d2 63.¢a1 £c1+ 64.¢a2 ¥d5# ]

56...g1£ 57.¢c4 [ 57.¢c3 does not save the day £c5+ 58.¢d3 £xb6 59.¢c4 ¢g3 60.¢c3 £c5+ 61.¢b2 £b4+ 62.¢c1 £c3+ 63.¢b1 £d2 64.¢a1

£c1+ 65.¢a2 ¥d5# ] 57...£xb6 58.¢c3

[ 58.¢d3 doesn't get the bull off theice £b3+ 59.¢d4 £c2 60.¢e3

£c3+ 61.¢e2 ¢g2 62.¢d1 ¥f3# ] 58...¢g3

[ 58...£c5+ 59.¢d3 ¢g3 60.¢d2 ¢f3 61.¢d3 ¥e4+ 62.¢d2 ¢f2 63.¢d1 £c2# ]

59.¢d3 [ 59.¢c4 does not help much ¢g2 60.¢d3 £b4 61.¢c2 ¥e4+ 62.¢d1 £c3 63.¢e2 ¥f3# ]

59...£b4 60.¢e2 [ 60.¢c2 cannot change destiny ¥e4+ 61.¢d1 ¢f2 62.¢c1 h5 63.¢d1 £e1# ]

60...£c3 61.¢d1 [ 61.¢f1 doesn't change anythinganymore £d2 62.¢g1 £f2# ]

61...¥f3#1-0

C55Shibuya,KaiseiMasui,Iroha



1.e4 e5 2.¤f3 ¤f6 3.¤c3 ¤c6 4.¥c4 d6 Diagram

(Diagram)

last book move 5.0-0 [ 5.¤g5!? d5 6.exd5± ]

5...¥g4² 6.¥xf7+?? not a gooddecision, because now the opponent isright back in the game

[ ¹6.h3 the only rescuing move ¥h5 7.d3² ]

6...¢xf7-+ 7.¤g5+


XABCDEFGHY8r+lwqkvl-tr(7zppzp-+pzpp'6-+nzp-sn-+&5+-+-zp-+-%4-+L+P+-+$3+-sN-+N+-#2PzPPzP-zPPzP"1tR-vLQmK-+R![xabcdefghy

[ 7.h3 ¥xf3 8.£xf3 ¤d4-+ ] 7...¢g8 8.£e1

[ 8.f3 is no salvation ¥c8-+ ] 8...¤a5

[ ¹8...h6 seems even better 9.f3 ¥d7 10.¤h3-+ ]

9.d3 ¤d7?? gives the opponent newchances

[ ¹9...h6 makes sure everything isclear 10.f3 ¥d7-+ ( 10...hxg5?!

11.fxg4 ¤xg4 12.h3-+ )] 10.¤d5 DiagramXABCDEFGHY8r+-wq-vlktr({7zppzpn+-zpp'6-+-zp-+-+&5sn-+Nzp-sN-%4-+-+P+l+$3+-+P+-+-#2PzPP+-zPPzP"1tR-vL-wQRmK-!xabcdefghy

¤b6?? throwing away the advantage [ ¹10...c6 11.f3 h6 12.fxg4 hxg5³ ]

11.£xa5+- ¥e2?? leading to a quickend

[ ¹11...c6 12.¤xb6 axb6+- ]

12.¤xb6 cxb6 [ 12...c6 desperation 13.£d2 ¥xf1 14.¤xa8 ¥xg2+- ]

13.£d5#0-1

○○○○○　第 7 回札幌オータムチェス大会　最終結果　○○○○○

（注 1）組み合わせは，コンピュータソフトを使用して行いました。（注 2）持ち時間は，フィッシャー方式で最初に 40 分，1 手毎に 30 秒加算としました。（注 3）タイ・ブレークは行いませんでした。（注 4）表彰は全員参加のオープンクラスと，レイティングによって A クラスと B クラスを設定しました。

氏名 Rating 1R 2R 3R 4R 5R 順位表彰

1 西森　敏之 1690 B5 1 W4 2 B3 2 W93 B6 4 2 準優勝 2 佐藤　泰司1540 W61 B3 1 B91.5 W41.5 B72.5 5 3 眞鍋　宏章 1504 B7 1 W22 W13 B5 4 B4 5 1 優勝 4 小林　勝彦 1495 W81 B1 1 W6 2 B2 2 W3 3 3 第三位

5 伊東　克英 1380 W10 B8 1 W102 W3 2 B9 3 3 第三位 (A1 位 ) 6 阿部　大聖 1288 B2 0 W71 B4 1 W8 2 W1 2 6 (A2 位 ) 7 舛井　　開 1197 W30 B6 0 W80.5 B101.5 W21.5 8 (A3 位 )

8 渋谷　快成 1091 B4 0 W50 B70.5 B60.5W101.5 8 (B2 位 ) 9 竹田　啓悟 900 bye0.5 B101.5 W21.5 B1 2 W5 2 6 (B1 位 )10舛井　　開 804 bye0.5 W90.5 B50.5 W70.5 B80.5 10 (B3 位 )

第 7 回札幌オータムチェス大会棋譜集

主　　　催：札幌チェスクラブ（代表：金丸知司）日　　　時： 2012 年 10 月 6, 7 日Ｔ　　　Ｄ：金丸知司（札幌チェスクラブ），山田明弘（函館チェスクラブ）組み合わせ：コンピュータ（西森敏之，山田明弘）場　　　所：札幌市中央区北２条西７丁目　「かでる２７」ソ　フ　ト：フリッツ 11（解析），フリッツ 11（印刷）制　　　作：札幌チェスクラブ（西森敏之，山田明弘）

A

B

Documents

第7回 札幌オータムチェス大会 - koyahatataku.com · C89: Closed Ruy Lopez: Marshall Attack 1.e4 e5 2.¤f3 ¤c6 3.¥b5 a6 4.¥a4 ¤f6 5.0-0 ¥e7 6.¦e1 b5 7.¥b3 0-0 8.c3

第7回札幌オータムチェス大会 - koyahatataku.com · C89: Closed Ruy Lopez: Marshall Attack 1.e4 e5 2.¤f3 ¤c6 3.¥b5 a6 4.¥a4 ¤f6 5.0-0 ¥e7 6.¦e1 b5 7.¥b3 0-0 8.c3