棋譜集 · 2014-04-01 · fritz11 printout, toshiyuki nishimori, 2013/09/02 2 d43 koyahata,taku...

第 10 回札幌サマーチェス大会

棋　譜　集

2013 年 8 月 17 日（土），18 日（日）札幌市中央区北 2 条西 7 丁目　

かでる２７　1010 室主催：札幌チェスクラブ

第１ラウンド

白黒1 小屋畑　拓 0 − 1 山田　真明2 山田　明弘 1 − 0 阿部　大聖3 佐藤　泰司 0 − 1 西森　敏之4 高安　信行 1 − 0 伊東　克英5 舛井　　開 0 − 1 小林　勝彦6 小林　秀彦 1/2 bye

第 2ラウンド

白黒1 山田　真明 0 − 1 高安　信行2 西森　敏之 0 − 1 山田　明弘3 小林　勝彦 1/2 − 1/2 小林　秀彦4 伊東　克英 0 − 1 小屋畑　拓5 阿部　大聖 1 − 0 佐藤　泰司

6 舛井　　開 1/2 bye

第 3ラウンド

白黒1 山田　明弘 1/2 − 1/2 高安　信行2 山田　真明 1 − 0 小林　勝彦3 小屋畑　拓 0 − 1 西森　敏之4 小林　秀彦 1 − 0 阿部　大聖5 伊東　克英 1 − 0 舛井　　開6 佐藤　泰司 1/2 bye

第 4ラウンド

白黒1 山田　明弘 1 − 0 山田　真明2 高安　信行 1 − 0 小林　秀彦3 西森　敏之 1 − 0 小林　勝彦4 阿部　大聖 1/2 − 1/2 小屋畑　拓5 佐藤　泰司 1 − 0 舛井　　開6 伊東　克英 0 -

第 5 ラウンド

白黒1 高安　信行 1/2 − 1/2 西森　敏之2 小林　秀彦 0 − 1 山田　明弘3 山田　真明 1/2 − 1/2 阿部　大聖4 小林　勝彦 1 − 0 佐藤　泰司5 舛井　　開 1 − 0 小屋畑　拓6 伊東　克英 0 -

第 10 回札幌サマーチェス大会　組み合わせ表／結果

Fritz11 Printout, Toshiyuki Nishimori, 2013/09/02 2

D43Koyahata,Taku 1475Yamada,Shinmei 1860

2013SapporoSummer (1.1)17.08.2013[Fritz 11 (30s)]

D43: Semi-Slav: 5 Bg5 h6 1.d4 c6 2.c4 d5 3.¤c3 ¤f6 4.¤f3 e6 5.¥f4 DiagramXABCDEFGHY8rsnlwqkvl-tr({7zpp+-+pzpp'6-+p+psn-+&5+-+p+-+-%4-+PzP-vL-+$3+-sN-+N+-#2PzP-+PzPPzP"1tR-+QmKL+R!xabcdefghy

l a s t b o o k m o v e dxc4 6.a3Covers b4 b5 7.h3 Secures g4

[ 7.e4 a6= ] 7...¥e7 8.e3

[ 8.e4 0-0= ] 8...0-0 9.¥e2 a6 10.0-0 ¥b7 11.b3

[ 11.£c2 ¤bd7³ ] 11...cxb3

[ 11...¤d5 12.¤xd5 cxd5 13.£b1∓ ]

12.£xb3³ c5 13.dxc5 ¥xc5 14.¦fd1 White threatens to winmaterial: Rd1xd8 £b6

[ 14...£e7 15.£b2³ ] 15.¦d2

[ 15.a4 b4 16.a5 £a7³ ] 15...¤d5 Diagram

[ ¹15...¤c6∓ ]

XABCDEFGHY8rsn-+-trk+(7+l+-+pzpp'6pwq-+p+-+&5+pvln+-+-%4-+-+-vL-+$3zPQsN-zPN+P#2-+-tRLzPP+"1tR-+-+-mK-![xabcdefghy

W h i t e h a s a n a c t i v e p o s i t i o n 16.¦ad1?

[ ¹16.¤xd5 would allow White toplay on ¥xd5 17.¦xd5 exd5

18.£xd5³ ] 16...¤xf4-+ 17.exf4 ¥xf2+ 18.¢h1 ¤c6 19.¤e4

[ 19.£c2 ¥e3 20.¦d7 ¥xf4 21.£e4-+ ]

19...¦ad8 [ 19...¥e3!? might be the shorterpath 20.¦d7 ¥xf4 21.£c2-+ ]

20.¤d6? [ ¹20.¤xf2 ¦xd2 21.¦xd2 £xf2 22.¥xb5∓ ]

20...¤a5-+ 21.£c3 ¥d5 [ ¹21...¥e3 22.¤f5 exf5 23.¦xd8 ¦xd8 24.¦xd8+ £xd8 25.£xe3 g6-+ ]

22.¤b7?? the final mistake, not thatit matters anymore

[ 22.¤f5 exf5 23.¦xd5 ¦xd5 24.¦xd5-+ ]

22...¤xb7 23.¤e5 [ 23.¤d4 does not solve anything ¦c8 24.£b4 ¥e3-+ ]

23...¥e3 24.¦d3 [ 24.¦xd5 does not win a prize exd5 25.£c6 ¤d6 26.£xb6


¥xb6-+ ] 24...¥xf4 25.¦g1

[ 25.¦f1 is not the saving move ¥g5 26.¥f3 ¤c5-+ ]

25...¤c5 26.¦dd1 ¤e4 [ 26...¤e4 27.£f3 ¤f2+ 28.£xf2 £xf2 29.¤f3 ¥xf3 30.¥d3 £g3 31.¥xh7+ ¢h8 32.¦xd8 £xh3# ]

0-1

E68Yamada,Akihiro 1855Abe,Taisei 1458


E68: King's Indian: Fianchetto: 6...Nbd7 7 0-0 e5 8 e4

1.d4 ¤f6 2.c4 g6 3.g3 ¥g7 4.¥g2 d6 5.¤f3 0-0 6.0-0 ¤bd7 7.¤c3 e5 8.e4 c6 9.d5 DiagramXABCDEFGHY8r+lwq-trk+({7zpp+n+pvlp'6-+pzp-snp+&5+-+Pzp-+-%4-+P+P+-+$3+-sN-+NzP-#2PzP-+-zPLzP"1tR-vLQ+RmK-!xabcdefghy

last book move £c7 Black's piececan't move: c8 10.£c2

[ 10.¥e3 a5² ] 10...a5

[ 10...cxd5 11.cxd5 ( ‹11.¤xd5 ¤xd5 12.exd5 ¤b6∓ ) 11...¤c5 12.¤e1= ]

11.h3 Consolidates g4 [ 11.¦e1 cxd5 12.cxd5 ¤c5= ]

11...¤c5 [ 11...cxd5 12.cxd5 b5 13.£e2∓ ]

12.¥e3 ¤e8 [ 12...cxd5 13.¤xd5 ( ‹13.cxd5 ¤cxe4 14.¦fd1 b5∓ ) 13...¤xd5 14.cxd5= ]

13.¤d2 [ 13.¦fd1 ¥f6± ]

13...f5 Black undermines the pawnchain 14.f4

[ 14.¦ad1 ¤e6 15.exf5 ¤d4² ] 14...fxe4

[ 14...exf4 15.¦xf4 ¤f6 16.¦f2= ] 15.¤dxe4

[ ¹15.fxe5 ¦xf1+ 16.¦xf1 ( ‹16.¢xf1 ¥xe5 17.¤dxe4 ¤xe4 18.£xe4 ¥f5³ ) 16...¥xe5 17.¤dxe4± ]

15...¤xe4³ 16.¤xe4 [ 16.£xe4 ¥f5 17.£f3 exf4 18.dxc6 fxe3 19.cxb7 ¦b8 20.£xe3 ¦xb7³ ]

16...cxd5∓ 17.¤g5 £xc4 [ ¹17...¤f6!? 18.fxe5 dxe5 19.¦xf6 ¥xf6 20.¥xd5+ ¢h8∓ ]

18.£xc4² White pins: Qc4xd5 dxc4Black has a new passed pawn: d6

19.¥d5+ White forks: c4+g8. Acomfortable square for the whitebishop ¢h8 20.fxe5 dxe5

[ 20...¦xf1+!? should beconsidered 21.¦xf1 h6 22.¤f7+

¢h7 23.exd6 ¥xh3² ] 21.¦xf8+±

[ 21.¥xc4?! ¤d6 22.¥c5 A) ‹22...¤xc4 23.¥xf8 h6 24.¦f7 hxg5 25.¥xg7+ ( 25.¦xg7?! ¥xh3 26.¦c7 ¦xf8 27.¦xc4 ¢g7² ) 25...¢g8 26.¦e7 ¥xh3 27.¦c1+- ; B) 22...¦xf1+ 23.¥xf1 h6


24.¥xd6 hxg5= ] 21...¥xf8 22.¦f1 DiagramXABCDEFGHY8r+l+nvl-mk({7+p+-+-+p'6-+-+-+p+&5zp-+Lzp-sN-%4-+p+-+-+$3+-+-vL-zPP#2PzP-+-+-+"1+-+-+RmK-!xabcdefghy

¥e7?? an oversight. But Black waslost anyway.

[ ¹22...¥f5 23.g4 ¤c7 24.¥xb7 ¦b8 25.gxf5 ¦xb7 26.fxg6 ¦b8 27.¤f7+ ¢g8 28.¤xe5 ¥g7 29.gxh7+ ¢xh7 30.¤xc4 ¤d5± ]

23.¤f7+ [ 23.¥xc4?! is a useless try h5 24.¦f7 ¥xg5 25.¥xg5 ¥xh3± ]

23...¢g7 [ 23...¢g8 does not help much 24.¤xe5+ ¢h8 25.¤f7+ ¢g8 26.¤d6+ ¥e6 27.¥xe6+ ¢h8 28.¤xe8 ¦d8 29.¦f7 ¦d1+ 30.¢g2 g5 31.¥xg5 ¦g1+ 32.¢xg1 ¥c5+ 33.¢f1 b6 34.¤f6 c3 35.¦xh7# ]

24.¥h6+ ¢g8 25.¤d6+ ¢h8 [ 25...¥e6 does not improveanything 26.¥xe6+ ¢h8 27.¤f7+

¢g8 28.¤g5+ ¢h8 29.¦f7 ¥c5+ 30.¢g2 ¤f6 31.¥g7+ ¢g8 32.¦xb7# ]

26.¤xe8 ¥xh3 [ 26...¥f6 does not save the day 27.¦xf6 ¥e6 28.¦f8+ ¥g8 29.¦xg8# ]

27.¥g7#1-0

B50Sato,Yasuji 1429Nishimori,Toshiyuki 1765


B50: Sicilian: 2...d6, Miscellaneous 1.e4 c5 2.¤f3 d6 3.¥c4 ¤f6 4.e5 dxe5 5.¤xe5 e6 6.0-0DiagramXABCDEFGHY8rsnlwqkvl-tr({7zpp+-+pzpp'6-+-+psn-+&5+-zp-sN-+-%4-+L+-+-+$3+-+-+-+-#2PzPPzP-zPPzP"1tRNvLQ+RmK-!xabcdefghy

last book move. White castles andimproves king safety ¥d6 7.d4

cxd4 8.£xd4 White has a strongking attack. £c7 White has a verya c t i v e p o s i t i o n 9.¤f3 0-0Black castles and improves kingsafety

[ 9...¤c6 10.£h4 ¤e7 11.¥d3= ] 10.¤c3² ¤c6 Black threatens tow i n m a t e r i a l : N c 6 x d 4 11.£h4White has a very active posit ion

¤e7 [ 11...a6² ]

12.¥b3 Loses material [ ¹12.¤b5!? £d7 13.¥d3² ]


12...¤g6 Black threatens to winm a t e r i a l : N g 6 x h 4 13.£c4White has a very active posit ion

£e7 14.¥g5 h6 [ 14...b6!?= ]

15.¥xf6² £xf6 Black has the pairof bishops 16.¤e4 £e7 17.¤xd6

£xd6 18.¦ad1 White threatens towin material: Rd1xd6 £e7 19.¦fe1

b6 20.c3 [ 20.¥a4 ¦b8² ]

20...¥b7= 21.¦e3 [ 21.£g4 ¦ad8= ]

21...¦ac8 [ ¹21...¥xf3!? 22.gxf3 ¦ad8∓ ]

22.£e2 ¤f4 Black threatens to winmaterial: Nf4xe2 23.£e1

[ 23.£f1!?= ] 23...¦fd8³ 24.¥c2 £f6 25.¥e4

[ 25.¦xd8+ ¦xd8 26.h4³ ] 25...¥a6

[ ¹25...¦xd1!? 26.£xd1 ¥xe4 27.¦xe4 ¤xg2 28.¢xg2 £g6+ 29.¤g5 £xg5+ ( ‹29...hxg5 30.¦d4³ ) 30.¦g4 £b5∓ ]

26.¦d4 ¦xd4 27.¤xd4 ¦d8 28.¥c2

[ ¹28.¤c6 ¦d6 29.¤xa7= ] 28...b5

[ 28...¥b7 29.¥e4 ¥d5 30.g3= ] 29.¤c6 White threatens to winmaterial: Nc6xd8

[ 29.g3 ¤h3+ 30.¢g2 ¤g5± ] 29...¦d7

[ ¹29...¦d6 30.¥e4 ¥b7= ] 30.¦f3

[ 30.¤b8!? ¦d6 31.¤xa6 ¦xa6 32.¦e5² ]

30...£g5 Black has a mate threat [ 30...¥b7!? 31.£e4 £g6 32.¦xf4 £xe4 33.¦xe4 ¦d2³ ]

31.¦g3 White threatens to winm a t e r i a l : R g 3 x g 5 £c5

Black threatens to win material:Qc5xc6

[ ¹31...£h5!? looks like a viablealternative 32.¤d4 ¦xd4 33.cxd4

¤e2+ 34.¢h1 ¤xg3+ 35.fxg3 £d5³ ]

32.£e4² f5? [ ¹32...¤g6 and Black could wellhope to p lay on 33.¦xg6 fxg6

34.£xe6+ ¦f7 35.£e8+ £f8= ] 33.£xf4+- £xc6 34.h4 Diagram

[ 34.£xh6 £d6 35.h4 ¥b7+- ]

XABCDEFGHY8-+-+-+k+({7zp-+r+-zp-'6l+q+p+-zp&5+p+-+p+-%4-+-+-wQ-zP$3+-zP-+-tR-#2PzPL+-zPP+"1+-+-+-mK-!xabcdefghy

34...¥b7? [ ¹34...¢f8² and Black can hopeto survive ]

35.£xh6+- b4?? Black has lost hisnerve... understandable when youconsider his position

[ 35...£d6 36.h5 £e7 37.£f4+- ] 36.£e3

[ ¹36.¥b3 finishes off theopponent ¦e7 37.¥xe6+ £xe6

38.¦xg7+ ¦xg7 39.£xe6+ ¢h8 40.f3 bxc3 41.bxc3+- ]

36...bxc3 37.bxc3 £d6 38.¥b3 [ 38.¦g6 f4 39.£xe6+ £xe6 40.¦xe6 ¥d5+- ]

38...¦e7?


[ ¹38...¥d5 39.£d4 e5± ] 39.£d3

[ ¹39.£g5+- and White can lookforward to a comfortable game ]

39...£c7 [ 39...£c7 40.£xf5 ¥d5 41.¥xd5 exd5 42.£xd5+ ¢h8+- ]

0-1

D08Takayasu,Nobuyuki 1532Ito,Katsuhide 1420


D08: Albin Counter Gambit 1.d4 d5 2.c4 e5 3.dxe5 d4 4.¤f3 ¤c6 5.a3 last book move ¥e7 6.g3 DiagramXABCDEFGHY8r+lwqk+ntr({7zppzp-vlpzpp'6-+n+-+-+&5+-+-zP-+-%4-+Pzp-+-+$3zP-+-+NzP-#2-zP-+PzP-zP"1tRNvLQmKL+R!xabcdefghy

Controls h4 ¥g4 7.¥g2 h5 [ 7...£d7 8.¤bd2 0-0-0 9.b4² ]

8.¥f4 [ 8.£b3 ¦b8± ]

8...£d7 9.£b3 ¥xf3 10.¥xf3 0-0-0 11.h4 f6 12.exf6 ¤xf6 13.¤d2 ¦he8 14.0-0 ¥c5 15.£d3 ¤g4

[ 15...¥d6 16.¥g5± ]

16.¤e4 [ 16.¤b3 ¤ge5 17.¥xe5 ¦xe5+- ]

16...¤ge5 [ 16...¥e7 17.¥g2 ¤ge5 18.£b3± ]

17.¤xc5 [ 17.¥xe5 ¦xe5 18.¥g2 ¥f8+- ]

17...¤xd3± 18.¤xd7 ¤xf4 19.gxf4 ¦xd7

[ 19...¢xd7!? 20.¢h2 g6± ] 20.¥xh5+- ¦e6?

[ ¹20...¦f8 21.¥g4 ¦xf4 22.¥xd7+ ¢xd7+- ]

21.¥g4 ¦g6 22.f3 ¢b8 [ 22...¤a5 23.¦ac1 ¤b3+- ]

23.h5 ¦xg4+ 24.fxg4 d3 [ 24...¤a5 doesn't get the cat offthe tree 25.¦ac1+- ]

25.e3 [ ¹25.exd3 and the result of thegame is c lear : Whi te w i l l w in

¢c8+- ] 25...¤a5 26.¦ab1

[ 26.c5!? might be the shorterpath ¤c4 27.¢f2 c6+- ]

26...¤xc4 27.¢f2 [ 27.¦fd1 ¤xe3 28.¦e1 d2 29.¦xe3 d1£+ 30.¦xd1 ¦xd1+ 31.¢g2 b6+- ]

27...¤d2 28.¦bd1 Diagram

(Diagram)

¤c4?? terrible, but the game islost in any case

[ ¹28...¤xf1 29.¦xf1 c5+- ] 29.¦b1 Twofold repetition ¦e7??gives the opponent new chances

[ 29...¤d2 30.g5 c5+- ] 30.¦fe1

[ 30.¦fd1 keeps an even firmergrip ¦d7+- ]


XABCDEFGHY8-mk-+-+-+({7zppzpr+-zp-'6-+-+-+-+&5+-+-+-+P%4-+-+-zPP+$3zP-+pzP-+-#2-zP-sn-mK-+"1+-+R+R+-!xabcdefghy

30...d2 [ 30...c6 31.g5+- ]

31.¦ed1 ¦xe3 [ 31...c5 praying for a miracle 32.g5 ¢c7+- ]

32.¦xd2 ¤xd2 [ 32...¦e8 cannot undo what hasa l r e a d y b e e n d o n e 33.¦d7

¦g8+- ] 33.¦d1 White threatens to winmaterial: Rd1xd2

[ ¹33.¢xe3 ends the debate ¤c4+ 34.¢d3+- ]

33...¦f3+= Black forks: f2+f4 34.¢e2

[ 34.¢e1 ¦xf4 35.¦xd2 ¢c8= ] 34...c6

[ 34...¦xf4!? 35.¦xd2 ¢c8= ] 35.¢xd2 ¦xf4 A rook endgameoccured. 36.¦g1 ¦f2+

[ 36...¢c7 37.¢e3 ¦f8 38.¦d1² ] 37.¢c3

[ 37.¢e3 ¦h2 38.b4 b6+- ] 37...b5

[ 37...¢c7!?² ] 38.g5± ¦h2?? another steptowards the grave

[ ¹38...¢c7± ] 39.h6!+- a devastating blow g6

[ 39...gxh6 40.g6 Passed pawn ] 40.¦g3

[ 40.¦f1 ¢c7 41.¦f6 ¢b6 42.¦xg6 ¦h3+ 43.¢d4 ¦h1+- ]

40...¢b7 [ 40...¢c7 41.¦f3 ¦h5+- ]

41.b4 [ ¹41.¢d4 seems even better a5 42.¢e5 a4+- ]

41...¢b6?? a blunder in a badposition

[ ¹41...c5+- ] 42.¢d4 ¢c7

[ 42...¦h1 is no salvation 43.¢e5 a6 44.¢f6+- ]

43.¢e5 ¦f2 [ 43...c5 the last chance forcounterplay 44.bxc5 ¦f2+- ]

44.¦h3 ¦f5+ 45.¢e6 ¦xg5 [ 45...¦f8 46.h7 a5 47.bxa5 c5 48.h8¦ ¦xh8 49.¦xh8 ¢c6 50.¦h7 b4 51.a6 ¢b5 52.a7 bxa3 53.a8£ a2 54.£xa2 c4 55.¦b7+ ¢c6 56.£b2 c3 57.£b5# ]

46.h7 [ 46.h7 ¦g1 47.h8£ ¦e1+ 48.¢f7 ¦f1+ 49.¢g8 ¦f2 50.£g7+ ¦f7 51.£xf7+ ¢d6 52.¦d3+ ¢e5 53.¦e3+ ¢d4 54.£e7 a5 55.£c5# ]

1-0

C77Masui,Hiraku 1287Kobayashi,Katsuhiko 1501


C77: Ruy Lopez: 3...a6 4 Ba4 Nf6,unusual lines

1.e4 e5 2.¤f3 ¤c6 3.¥b5 a6


4.¥a4 ¤f6 5.¤c3 ¥b4 DiagramXABCDEFGHY8r+lwqk+-tr(7+pzpp+pzpp'6p+n+-sn-+&5+-+-zp-+-%4Lvl-+P+-+$3+-sN-+N+-#2PzPPzP-zPPzP"1tR-vLQmK-+R![xabcdefghy

last book move 6.¥b3 [ 6.0-0 0-0= ]

6...0-0 7.¥d5 [ 7.0-0 d6= ]

7...¤xd5 [ 7...d6 8.¥xc6 bxc6 9.d3³ ]

8.exd5 Black has the pair ofbishops

[ 8.¤xd5 d6= ] 8...¤d4³ Diagram

(Diagram)

9.¤xe5?? [ ¹9.0-0³ would be a reprieve ]

9...¦e8-+ 10.f4 [ 10.d3 doesn't improve anything ¦xe5+ 11.¥e3 ¤b5-+ ]

10...d6 11.£h5 [ 11.0-0 cannot change what is ins to re fo r ? dxe5 12.d3 exf4

13.¥xf4 ¥xc3 14.bxc3 ¤e2+ 15.¢h1 £xd5-+ ]

11...dxe5 12.fxe5 [ 12.0-0 no good, but what else? exf4 13.d3-+ ]

12...¤xc2+ [ ¹12...g6 and Black can

XABCDEFGHY8r+lwq-trk+(7+pzpp+pzpp'6p+-+-+-+&5+-+Pzp-+-%4-vl-sn-+-+$3+-sN-+N+-#2PzPPzP-zPPzP"1tR-vLQmK-+R![xabcdefghy

celebrate victory 13.¤e4 gxh5 14.0-0 ¦xe5 15.d3 ¤xc2 16.¦b1-+ ]

13.¢e2 [ 13.¢d1 is not much help ¤xa1 14.¦f1 g6-+ ]

13...¥xc3 [ 13...g6 14.¢d1 gxh5 15.¢xc2 ¥f5+ 16.d3 ¥xc3 17.¥g5 £xd5 18.¢xc3 £xd3+ 19.¢b4 a5+ 20.¢c5 ¦xe5# ]

14.dxc3 £xd5 15.£h4 £xg2+ 16.¢d3

[ 16.£f2 a fruitless try to alter thecourse of the game ¥g4+ 17.¢d3

£xf2 18.¥d2 ¥f5+ 19.¢c4 £e2+ 20.¢c5 ¦xe5# ]

16...¥f5+ 17.¢c4 £c6+ [ 17...b5+ 18.¢b3 £d5+ 19.£c4 £xc4# ]

18.¢b3 £b5+ [ 18...£b5+ 19.£b4 ¤xb4 20.c4 ¥c2+ 21.¢c3 £xe5+ 22.¢xb4 a5+ 23.¢a3 £c5+ 24.b4 £xb4# ]

0-1


B34Yamada,Shinmei 1860Takayasu,Nobuyuki 1532


B34: Sicilian: Accelerated Dragonwith 5 Nc3: sidelines

1.e4 c5 2.¤f3 ¤c6 3.d4 cxd4 4.¤xd4 g6 5.¤c3 ¥g7 6.¥e3 ¤f6 7.f3 0-0 8.£d2 d5 9.0-0-0DiagramXABCDEFGHY8r+lwq-trk+({7zpp+-zppvlp'6-+n+-snp+&5+-+p+-+-%4-+-sNP+-+$3+-sN-vLP+-#2PzPPwQ-+PzP"1+-mKR+L+R!xabcdefghy

last book move dxe4 10.¤xe4 [ ¹10.¤xc6!? is worthconsiderat ion £xd2+ 11.¦xd2

bxc6 12.¤xe4= ] 10...¤xe4∓ 11.fxe4 Diagram

[ ¹11.¤xc6 £xd2+ 12.¥xd2 ¤xd2 13.¤xe7+ ¢h8 14.¦xd2∓ ( 14.¢xd2? ¦d8+ 15.¥d3 ¥e6-+ )]

(Diagram)

11...¥g4?? Black lets it slip away [ 11...¥xd4 12.¥xd4 ¥g4-+ ( 12...¤xd4?! 13.£xd4 £c7 14.¥c4³ )]

XABCDEFGHY8r+lwq-trk+({7zpp+-zppvlp'6-+n+-+p+&5+-+-+-+-%4-+-sNP+-+$3+-+-vL-+-#2PzPPwQ-+PzP"1+-mKR+L+R!xabcdefghy

12.¤xc6= bxc6 13.£xd8 ¦fxd8 14.¦xd8+ ¦xd8 Black has a matethreat 15.¥c4 ¥d4 16.¥xd4 ¦xd4

17.¥d3 f6 18.¢d2 e5 19.¦f1 ¢f7 20.¢e3 ¢e7 21.b3 a5 22.a3 c5 23.h3 White threatens to winmaterial: h3xg4 ¥e6 24.g4 g5Black has a new backward pawn: f6

25.¦b1 h6 26.c3 White threatensto win material: c3xd4 ¦d6 27.b4

axb4 28.axb4 ¦b6 29.¢d2 cxb4 30.¦xb4 White has a new passedpawn: c3. ¦d6 31.¢c2 h5Black threatens to win material:h5xg4 32.¥e2 hxg4 33.¥xg4

¥xg4 34.hxg4 A rook endgameoccured. ¦d8 35.¦b7+ ¢e6

36.¦b6+ ¢e7 37.¦b1 ¦h8 38.¦g1 [ 38.¦b7+ ¢d6= ]

38...¢d6 39.¦d1+ ¢c5 40.¦f1White threatens to win material:Rf1xf6 ¦h2+ 41.¢d3 ¦h3+

42.¢d2 ¦g3 Black threatens to winmaterial: Rg3xg4 43.¦xf6 ¦xg4Black has a new passed pawn: g5.

44.¢e3 ¦g3+ 45.¦f3??stumbles just before the finish line

[ ¹45.¢d2= had to be tried toavoid defeat ]


45...¦xf3+-+ 46.¢xf3 ¢c40-1

B24Nishimori,Toshiyuki 1765Yamada,Akihiro 1855


B24: Closed Sicilian: 3 g3 sidelines 1.e4 c5 2.¤c3 e6 3.g3 ¤c6 4.¥g2 g6 5.d3 ¥g7 6.¤ge2 ¤ge7 7.0-0 0-0 DiagramXABCDEFGHY8r+lwq-trk+(7zpp+psnpvlp'6-+n+p+p+&5+-zp-+-+-%4-+-+P+-+$3+-sNP+-zP-#2PzPP+NzPLzP"1tR-vLQ+RmK-![xabcdefghy

l a s t b o o k m o v e 8.¥e3White threatens to win material:Be3xc5 ¤d4 9.£d2 ¤ec6

10.¤d1 d5 [ 10...b6 11.c3 ¤xe2+ 12.£xe2= ]

11.c3 Consolidates b4 [ 11.exd5!? might be a viablealternative exd5 12.¤f4= ]

11...¤xe2+³ 12.£xe2 d4Black threatens to win material:d4xe3 13.¥d2 e5 14.f4

[ 14.c4 h5³ ] 14...f5

[ 14...exf4 15.gxf4 f6 16.¤f2∓ ]

15.exf5 [ 15.¦c1 exf4 16.¥xf4 £a5= ]

15...¥xf5 16.¥e4 [ 16.fxe5 ¦e8 17.£f3 ¢h8³ ]

16...£d7 17.¤f2 exf4 18.gxf4 ¦ae8 19.£f3

[ ¹19.c4!?³ deservesconsideration ]

19...¥xe4-+ 20.¤xe4 [ 20.dxe4 dxc3 21.¥xc3 ¤d4 22.¥xd4 ¥xd4-+ ( 22...cxd4?! 23.¤d3= )]

20...b6 [ 20...¤e5 21.£e2 dxc3 22.fxe5 cxd2 23.£xd2 ¥xe5 24.£e2-+ ]

21.£g3 [ 21.c4 ¤e5 22.£e2 ¤g4∓ ]

21...¤e7 [ ¹21...dxc3 22.¥xc3 ¤b4-+ ]

22.¦f3? [ ¹22.c4∓ ]

22...¤f5-+ 23.£h3 c4! Deflection:c4 24.¤g3

[ 24.dxc4 £c6 Double attack ( 24...¦xe4 Deflect ion; 24...£c6Decoy )]

24...£b5 25.¤xf5 ¦xf5 [ 25...£xf5?! 26.£xf5 ¦xf5 27.dxc4³ ]

26.¦b1 [ 26.dxc4 the last chance forcounterplay £xb2 27.¦d1-+ ]

26...dxc3 27.dxc4 [ 27.¥xc3 a fruitless try to alter thecourse of the game ¥xc3 28.dxc4

¥d4+ 29.¢h1 £xc4-+ ] 27...£c5+ 28.¥e3 Diagram

(Diagram)

¦xe3! Decoy: e3 29.¦xe3 [ 29.¦xe3 £d4 Double attack ( 29...£d4 Decoy )]


XABCDEFGHY8-+-+r+k+({7zp-+-+-vlp'6-zp-+-+p+&5+-wq-+r+-%4-+P+-zP-+$3+-zp-vLR+Q#2PzP-+-+-zP"1+R+-+-mK-!xabcdefghy

[ 29.-- ¦e1+ Mate threat ] 29...¥d4 30.¦be1

[ 30.bxc3 otherwise it's curtains atonce ¥xe3+ 31.¢h1 £c6+

32.£g2 £xc4 33.¦f1-+ ] 30...cxb2 31.¢g2 ¥xe3

[ 31...¥xe3 32.£xe3 £xe3 33.¦xe3 b1£ 34.¦e5 ¦xf4 35.¦e1 £xe1 36.h3 £e2+ 37.¢g3 £f2# ]

0-1

B30Kobayashi,Katsuhiko 1501Kobayashi,Hidehiko 1523


B30: Sicilian: 2...Nc6 3 Bb5, lineswithout ...g6

1.e4 c5 2.¤f3 ¤c6 3.¥b5 ¤f6 4.¤c3 e6 5.0-0 ¥e7 Diagram

(Diagram)

last book move 6.d4 cxd4 7.¤xd4 0-0 8.¥g5

[ 8.¥e3 a6 9.¥d3 £c7² ]

XABCDEFGHY8r+lwqk+-tr(7zpp+pvlpzpp'6-+n+psn-+&5+Lzp-+-+-%4-+-+P+-+$3+-sN-+N+-#2PzPPzP-zPPzP"1tR-vLQ+RmK-![xabcdefghy

8...£b6 [ 8...£c7 9.¥xc6 bxc6 10.¦e1³ ]

9.¤xc6 bxc6 10.e5 cxb5 11.exf6 ¥xf6

[Instead of 11...gxf6 12.¥h6 ¢h8 13.¥xf8 ¥xf8 14.£h5± ]

12.¥xf6 gxf6 13.£f3White threatens to win material:Qf3xa8 ¥b7 Black threatens to winmaterial: Bb7xf3 14.£xf6 £c6

[ 14...b4 15.¤e2 ¥e4 16.¤f4² ] 15.£g5+ White forks: b5+g8

[ 15.f3 £b6+ 16.¢h1 £d8± ] 15...¢h8² 16.£f6+ ¢g8 17.£g5+

[ 17.f3 £b6+ 18.¢h1 ¥c6± ] 17...¢h8² Twofold repetition 18.£f6+

[ 18.f3!? £b6+ 19.¢h1² ] 18...¢g8= Diagram

(Diagram)

½-½


XABCDEFGHY8r+-+-trk+(7zpl+p+p+p'6-+q+pwQ-+&5+p+-+-+-%4-+-+-+-+$3+-sN-+-+-#2PzPP+-zPPzP"1tR-+-+RmK-![xabcdefghy

B58Ito,Katsuhide 1420Koyahata,Taku 1475


B58: Classical Sicilian: 6 Be2 1.e4 c5 2.¤f3 d6 3.d4 cxd4 4.¤xd4 ¤c6 5.¥e3 ¤f6 6.¤c3 ¥d7 7.¥e2 a6 8.0-0 g6 Diagram

(Diagram)

last book move 9.£d2 [ 9.¤d5 ¦c8± ( 9...¤xe4?d o e s n ' t l e a d t o a n y t h i n gs i g n i f i c a n t 10.¤xc6 ¥xc6

11.¥b6+- )] 9...h5 10.h3 Secures g4 ¤e5

[ ¹10...¥g7!?² should beinvestigated more closely ]

11.f4± ¤c6 12.f5 ¤e5 13.¦ad1 ¦c8 14.b3

[ 14.fxg6 ¤xg6 15.¦xf6 exf6± ] 14...¦c7?

[ 14...£c7 15.¤d5 ¤xd5 16.exd5² ]

XABCDEFGHY8r+-wqkvl-tr(7+p+lzpp+p'6p+nzp-snp+&5+-+-+-+-%4-+-sNP+-+$3+-sN-vL-+-#2PzPP+LzPPzP"1tR-+Q+RmK-![xabcdefghy

15.¤f3 [ 15.fxg6 fxg6 16.¤d5 ¤xe4+- ]

15...£c8 Black should quicklyconclude development.

[ 15...gxf5 16.exf5 £c8 17.¥d4± ]

16.¥d4± gxf5? [ 16...¥h6 17.£e1 ¥f4 18.fxg6 fxg6 19.¤xe5 ¥xe5 20.¥xe5 dxe5+- ]

17.¤xe5+- dxe5 18.¥xe5 ¦c6? [ ¹18...¦xc3 19.£xc3 £xc3 20.¥xc3 fxe4+- ]

19.exf5 ¦g8 [ 19...¥g7 20.¥f3+- ]

20.¥f3 ¦b6 [ 20...¥g7 is not much help 21.£d4+- ]

21.¤d5 [ ¹21.£d4 secures the point ¦c6 22.¦f2 ¥g7 23.¥xc6 £xc6+- ]

21...¤xd5 22.¥xd5 [ 22.£xd5?! ¦b5 23.£d4 £c5+- ]

22...¥xf5 [ 22...¥h6 23.£d3 ¦g5+- ]

23.¦xf5! Mate attack e6 [ 23...£xf5 24.¥c6+ Mate attack ] [ 23...-- 24.¥xf7# Mate threat ]

24.¥e4


[ ¹24.¦f2 and White hastriumphed ¥c5 25.¥f3 ¥xf2+

26.¢xf2+- ] 24...exf5 25.¥xf5! Mate attack. £c5+

[ 25...£xf5 26.£d8# Mate attack ] [ 25...-- 26.¥d7+ Mate threat ]

26.¢h1 [ ¹26.¥d4!? £xf5 27.¥xb6 ¥c5+ 28.¥xc5 £xc5+ 29.¢h1 ¢f8+- ]

26...¥e7 27.¥d7+ ¢f8 DiagramXABCDEFGHY8-+-+-mkr+(7+p+Lvlp+-'6ptr-+-+-+&5+-wq-vL-+p%4-+-+-+-+$3+P+-+-+P#2P+PwQ-+P+"1+-+R+-+K![xabcdefghy

28.£h6+?? makes life moredifficult

[ ¹28.¥d4 £c7 29.¥xb6 £xb6 30.¦f1± ]

28...¦xh6-+ 29.¥f5 £xe5 [ 29...£xe5 30.a4 ¥d6 31.¢g1 £h2+ 32.¢f2 ¦xg2+ 33.¢e3 £f4+ 34.¢d3 £xf5+ 35.¢e3 ¥c5+ 36.¦d4 ¦e6# ]

0-1

A22Abe,Taisei 1458Sato,Yasuji 1429


A22: English Opening: 1...e5 2 Nc3Nf6

1.c4 e5 2.¤c3 ¤f6 3.¤f3 e4 4.¤g5 DiagramXABCDEFGHY8rsnlwqkvl-tr({7zppzpp+pzpp'6-+-+-sn-+&5+-+-+-sN-%4-+P+p+-+$3+-sN-+-+-#2PzP-zPPzPPzP"1tR-vLQmKL+R!xabcdefghy

last book move d5 [ 4...£e7 5.£c2² ]

5.cxd5± ¤xd5 6.¤gxe4 ¥b4 [ 6...¤c6 7.¤xd5 £xd5 8.¤c3± ]

7.e3 [ 7.£b3 ¥e6 8.¤xd5 ¤c6 9.¤xb4 ¥xb3 10.¤xc6 £h4+- ]

7...0-0 8.¥c4 c6 9.£b3 ¤xc3 10.¤xc3 ¥d6 11.0-0 £c7 12.f4 b5 13.¥e2 ¦e8

[ 13...¥e6 14.£c2± ] 14.¥f3 a5? Diagram

[ ¹14...¥e6 15.£c2 ¤a6± ]

15.¤xb5!+- Deflection: c6 £d7 [ 15...cxb5 16.£d5Double attack ( 16.¥xa8 Pinning ;

16.¥xa8 D e f l e c t i o n; 16.£d5Decoy )]


XABCDEFGHY8rsnl+r+k+(7+-wq-+pzpp'6-+pvl-+-+&5zpp+-+-+-%4-+-+-zP-+$3+QsN-zPL+-#2PzP-zP-+PzP"1tR-vL-+RmK-![xabcdefghy

16.¤xd6 £xd6 17.£c2 [ 17.£c3 and White can alreadyrelax £b4+- ]

17...¦a7 [ 17...¥a6 18.¦e1 ¥d3 19.£c3+- ]

18.b3 ¥b7 19.¥b2 ¤d7 20.¦ac1 ¦a6

[ 20...c5 21.d4 ¥xf3 22.¦xf3 cxd4 23.¥xd4+- ]

21.¥e4 ¤f6 [ 21...g6 is not the saving move 22.f5 ¦b6 23.fxg6 fxg6 24.¦f4+- ]

22.¥xf6 gxf6 [ 22...£xf6 does not solveanything 23.¥xh7+ ¢f8

24.¥e4+- ] 23.¥xh7+ ¢h8

[ 23...¢f8 cannot change destiny 24.¦f3+- ]

24.¦f3 ¥c8 25.¦g3 £d5 [ 25...a4 does not save the day 26.£d1 ¦a5 27.f5 ¥xf5 28.¥xf5 ¦xf5 29.¦c4 £xg3 30.hxg3 axb3 31.£xb3+- ]

26.¥d3 ¦b6 27.¥c4 £d7 [ 27...£h5 is the last straw 28.£c3 c5 29.£xa5 ¦d6+- ]

28.£d1 £f5 29.¥xf7 ¦f8 30.¥g6 £d5 31.£h5+

[ 31.f5 £xf5 32.¦c4 ¦b7 33.¦h4+ ¢g8 34.¥xf5+ ¢f7 35.¥xc8 ¦xc8 36.£g4 ¢e7 37.¦h7+ ¢d6 38.¦xb7 ¦c7 39.£d4+ ¢e6 40.¦xc7 ¢f5 41.¦xc6 a4 42.¦xf6# ]

31...£xh5 32.¥xh5 ¥d7 33.¦c5 a4

[ 33...¦b5 doesn't changeanything anymore 34.¦xb5 cxb5

35.e4+- ] 34.¥d1

[ 34.¥g6 might be the shorter path ¦b5 35.¦c4 ¦fb8 36.¦xa4 ¦b4+- ]

34...¦f7 [ 34...¦b5 cannot change what isin store for ? 35.b4+- ]

35.¦h5+ [ 35.bxa4?! s u c c u m b s t o ¦b1 36.¢f2 ¦xd1± ]

35...¦h7 36.¦xh7+ ¢xh7 37.¥c2+ [ 37.bxa4?! is easily refuted ¦b1 38.¢f1 ¦xd1+ 39.¢e2 ¦a1± ]

37...¢h8 38.¦g6 [ ¹38.bxa4!? makes it eveneasier for White c5+- ]

38...c5 39.e4 a3 [ 39...¦d6 hoping against hope 40.d3 axb3 41.¥xb3 ¦xd3 42.¦xf6 ¦d4+- ]

40.e5 c4 [ 40...¥e8 doesn't get the bull offthe ice 41.¦xf6 ¦b8 42.¢f2+- ]

41.¦xf6 ¦xf6 [ 41...cxb3 doesn't improveanything 42.¥xb3 ( 42.¦xb6??cheese in a trap bxc2 43.¢f2

c1£-+ ) 42...¦b8 43.f5 ¦xb3 44.axb3+- ]

42.exf6 ¥e6


[ 42...¢g8 desperat ion 43.bxc4 ¢f7+- ]

43.bxc4 ¥xc4 44.¥b1 ¢g8 45.¢f2 ¢f7 46.¢e3 ¢xf6 47.g4 ¥e6 48.f5 ¥f7

[ 48...¥c8 does not improveanything 49.¢f4 ¢e7 50.¢e5

¢d8 51.g5 ¢c7 52.f6 ¢b6 53.g6 ¥g4 54.h4 ¢a7 55.f7 ¢b7 56.f8£ ¥e2 57.g7 ¥b5 58.g8£ ¢b6 59.£d6+ ¥c6 60.£b3+ ¢a5 61.¥d3 ¥e4 62.£bxa3# ]

49.¢f4 ¥c4 [ 49...¥e8 is no salvation 50.h4 ¢f7 51.¢e5 ¢g8 52.g5 ¥c6 53.g6 ¢h8 54.f6 ¥e8 55.¢f4 ¢g8 56.h5 ¢f8 57.h6 ¥f7 58.h7 ¢e8 59.gxf7+ ¢d8 60.f8£+ ¢c7 61.£c5+ ¢b8 62.h8£+ ¢b7 63.£hc8# ]

50.h4 White intends g5 ¢g7 [ 50...¢e7 does not win a prize 51.¢e5 ¢e8 52.g5 ¢d7 53.g6 ¥e2 54.f6 ¥b5 55.d4 ¢c7 56.f7 ¢b6 57.f8£ ¢a6 58.g7 ¥c4 59.£d6+ ¢b7 60.£b4+ ¢a7 61.£c5+ ¢b7 62.¥e4+ ¢a6 63.£xc4+ ¢a5 64.g8£ ¢b6 65.£gf7 ¢a5 66.£fc7# ]

51.g5 ¥e2 [ 51...¥f7 doesn't do any good 52.f6+ ¢f8 53.g6 ¥d5 54.d4 ¢g8 55.¢e5 ¥c4 56.d5 ¢f8 57.¥f5 ¢e8 58.f7+ ¢e7 59.d6+ ¢f8 60.¢f6 ¥xf7 61.d7 ¥xg6 62.¥xg6 ¢g8 63.d8£# ]

52.d4 ¥c4 [ 52...¢f8 hardly improvesanything 53.g6 ¥c4 54.¢e5 ¥b5

55.f6 ¥e8 56.¥e4 ¥d7 57.g7+ ¢g8 58.¥d5+ ¥e6 59.¥xe6+ ¢h7 60.g8£+ ¢h6 61.d5 ¢h5

62.£g5# ] 53.h5 White prepares the advanceg6 ¢f7

[ 53...¢f8 cannot undo what hasalready been done 54.h6 ¢e7 55.h7 ¢d6 56.h8£ ¥d5 57.£d8+ ¢c6 58.£c8+ ¢d6 59.£c5+ ¢d7 60.£xd5+ ¢c7 61.£c5+ ¢d7 62.f6 ¢e6 63.¥f5+ ¢f7 64.£e7+ ¢g8 65.£g7# ]

54.h6 ¢g8 [ 54...¢e7 does not help much 55.h7 ¢d6 56.h8£ ¢c7 57.g6 ¥e2 58.£e5+ ¢b7 59.£xe2 ¢b6 60.£c4 ¢b7 61.g7 ¢b6 62.£c5+ ¢a6 63.g8£ ¢b7 64.£gc8# ]

55.g6 ¢h8 [ 55...¢f8 doesn't change theoutcome of the game 56.f6 ¥e6 57.h7 ¢e8 58.h8£+ ¢d7 59.f7 ¥xf7 60.gxf7 ¢c7 61.f8£ ¢b6 62.£c5+ ¢b7 63.£hc8# ]

56.f6 ¢g8 57.h7+ ¢f8 58.h8£+ ¥g8 59.f7

[ 59.f7 ¢e7 60.fxg8£ ¢d6 61.£c8 ¢e7 62.£e5# ] [ 59.£g7+ ¢e8 60.£e7# ]

1-0

B72Yamada,Akihiro 1860Takayasu,Nobuyuki 1532


B72: Sicilian Dragon: 6 Be3, lineswith h3+Bc4 and sidelines

1.¤f3 c5 2.e4 ¤c6 3.d4 cxd4 4.¤xd4 g6 5.¤b3 ¥g7 6.¤c3 d6 7.¥e3 ¤f6 8.¥e2 0-0 Diagram


XABCDEFGHY8r+lwq-trk+(7zpp+-zppvlp'6-+nzp-snp+&5+-+-+-+-%4-+-+P+-+$3+NsN-vL-+-#2PzPP+LzPPzP"1tR-+QmK-+R![xabcdefghy

l a s t b o o k m o v e 9.£d2 ¤g4 10.¥g5 White has a very activeposition £b6 11.0-0-0??re leas ing the p ressu re on theopponent

[ ¹11.0-0² would keep Whitealive ]

11...¤xf2∓ 12.¥e3 ¥xc3 13.bxc3 ¤xe4 14.£d3 ¤f2 Black threatensto win material: Nf2xd3

[ ¹14...£a6 15.£xa6 bxa6∓ ] 15.£d2= ¤e4 Twofold repetition 16.£d3 ¤f2 17.£d2 Diagram

(Diagram)

½-½

XABCDEFGHY8r+l+-trk+({7zpp+-zpp+p'6-wqnzp-+p+&5+-+-+-+-%4-+-+-+-+$3+NzP-vL-+-#2P+PwQLsnPzP"1+-mKR+-+R!xabcdefghy

C45Yamada,Shinmei 1860Kobayashi,Katsuhiko 1501


C45: Scotch Game 1.e4 e5 2.¤f3 ¤c6 3.d4 exd4 4.¤xd4 ¤f6 5.¤xc6 bxc6 6.e5 £e7 7.£e2 ¤d5 8.c4 £b4+ 9.¤d2 ¥a6 Diagram

(Diagram)

last book move 10.g3 [ 10.£e4 ¤b6² ]

10...0-0-0 [ 10...¤b6 11.£e4= ]

11.¥h3 ¤b6 Now all is on c4 12.b3Controls a4 £c3 Black threatens towin material: Qc3xa1

[ 12...h5 13.a3 £c3 14.¦b1² ] 13.¦b1± ¦e8

[ 13...h5 14.¥b2 £c2 15.£e4 £xe4+ 16.¤xe4± ]

14.¥b2 £a5 15.0-0 ¥b4 [ 15...h5!?± ]


XABCDEFGHY8r+-+kvl-tr(7zp-zpp+pzpp'6l+p+-+-+&5+-+nzP-+-%4-wqP+-+-+$3+-+-+-+-#2PzP-sNQzPPzP"1tR-vL-mKL+R![xabcdefghy

16.¦fd1 DiagramXABCDEFGHY8-+k+r+-tr({7zp-zpp+pzpp'6lsnp+-+-+&5wq-+-zP-+-%4-vlP+-+-+$3+P+-+-zPL#2PvL-sNQzP-zP"1+R+R+-mK-!xabcdefghy

¤d5?? the final mistake, not that itmatters anymore

[ ¹16...¥a3 17.¤f3 ¦e7+- ] 17.¤e4 £xa2

[ 17...¥a3 otherwise it's curtainsat once 18.¥xa3 £xa3 19.¥xd7+

¢b8 20.¥xe8 ¦xe8+- ] 18.¦a1 ¥xc4

[ 18...£xb3 there is nothing betterin the position 19.¦xa6 ¤b6+- ]

19.bxc4 [ 19.¦xa2 is a bad alternative ¥xe2 20.¦c1 a6∓ ] [ 19.£xc4 £xa1 20.¦xa1 a5

21.£xc6 ¤b6 22.¥xd7+ ¢d8 23.¥xe8 ¦xe8 24.¦d1+ ¢c8 25.¤d6+ ¥xd6 26.exd6 ¢b8 27.dxc7+ ¢c8 28.£xb6 ¦e1+ 29.¦xe1 ¢d7 30.£b7 a4 31.c8£+ ¢d6 32.¦d1# ]

19...¤c3 20.¤xc3 £xa1 21.¥xa1 [ 21.¥xa1 ¦e6 22.¥xe6 fxe6 23.c5+- ]

1-0

E61Koyahata,Taku 1475Nishimori,Toshiyuki 1765


E61: King's Indian: Early deviationsf o r W h i t e , i n c l u d i n g S m y s l o vSystem

1.d4 ¤f6 2.c4 c5 3.e3 g6 4.¤f3 ¥g7 5.¤c3 cxd4 6.¤xd4 0-0 7.¥e2 DiagramXABCDEFGHY8rsnlwq-trk+({7zpp+pzppvlp'6-+-+-snp+&5+-+-+-+-%4-+PsN-+-+$3+-sN-zP-+-#2PzP-+LzPPzP"1tR-vLQmK-+R!xabcdefghy

l a s t b o o k m o v e d6 8.h3Secures g4 ¤c6 9.¤f3

[ 9.0-0 £b6= ] 9...b6

[ 9...¥f5 10.0-0³ ]


10.¦b1 [ 10.0-0 ¤d7= ]

10...¥f5³ 11.¥d3 ¥xd3 12.£xd3 ¤b4 Black threatens to winmaterial: Nb4xd3

[ 12...¤d7 13.£d2³ ] 13.£d1

[ 13.£e2 ¤d7= ] 13...¦c8³ 14.a3 ¤c6 15.0-0 ¤a5 16.b3 Prevents intrusion on c4 a6Conso l i da tes b5 17.¥b2 £c7

18.¤d5 £b7 [ 18...¤xd5 19.cxd5 £c2 20.¥d4= ]

19.¥d4 White threatens to winmaterial: Bd4xb6

[ ¹19.¥xf6 ¥xf6 20.¤xf6+ exf6 21.£xd6± ]

19...¤xd5³ 20.¥xg7 ¤xe3 [L e s s a d v i s a b l e i s 20...¢xg7 21.cxd5 ( ‹21.£xd5 £xd5 22.cxd5 ¦c3³ ) 21...¦c7 22.e4² ]

21.fxe3 ¢xg7 Black king safetydropped 22.¤g5

[ 22.£d3 ¤c6∓ ] 22...h6∓ 23.¤f3 £e4 24.£e1 ¤c6 25.£c3+ f6 26.¦fe1 e5

[ 26...b5 27.¤d4-+ ] 27.¦bd1 ¦fd8 28.¦e2

[ 28.¤d2 £f5∓ ] 28...g5

[ ¹28...d5!? 29.¦ed2 ¤e7∓ ] 29.¦ed2³ d5 30.¦xd5 ¦xd5

[ 30...¤d4! is an interesting idea 31.¦5xd4 exd4 32.exd4 b5³ ]

31.¦xd5² [ 31.cxd5? ¤e7 32.¤d2 £xg2+ 33.¢xg2 ¦xc3-+ ]

31...£b1+ 32.¢h2 £f5 33.£d2 ¦c7 Diagram 34.£d3?? a transit from better toworse

[ 34.c5 bxc5 35.¦xc5= ]

XABCDEFGHY8-+-+-+-+(7+-tr-+-mk-'6pzpn+-zp-zp&5+-+Rzpqzp-%4-+P+-+-+$3zPP+-zPN+P#2-+-wQ-+PmK"1+-+-+-+-![xabcdefghy

34...£e6?? lets it slip away [ ¹34...£xd3 secures the point 35.¦xd3 e4-+ ]

35.¦d6 £e7 [ 35...e4 36.¦xe6 exd3 37.¦d6± ]

36.e4 [ ¹36.£d5 £e8 37.¤d2+- ]

36...¢f7?? another bit of territorylost

[ ¹36...¤b8± ] 37.£d5++- ¢g7 38.£d2

[ ¹38.¦xc6 it becomes clear thatWhite will call all the shots ¦xc6

39.£xc6+- ] 38...¢g6

[ 38...£f7 39.£d3± ] 39.b4

[ 39.¢g3 ¤d4 40.¦xb6 ¤xf3 41.gxf3 ¦d7± ]

39...¢g7 [ 39...¤d4 40.¦xb6 ¤xf3+ 41.gxf3² ]

40.c5 [ ¹40.£d5!? ¤d4 41.¦xb6± ]

40...bxc5² 41.bxc5 ¤a7 42.£c1?? ruins a very nice position

[ 42.£d5 ¤c8 43.¦d8 £f7² ] 42...¤b5 Black threatens to winmaterial: Nb5xd6


[ ¹42...£xd6! and the result of thegame is c lear : B lack w i l l w in

43.£xg5+ hxg5 44.cxd6 ¦d7-+ ] 43.¦d5= An ideal square for thewhite rook. ¦c6 Attacks the isolanion c5

[ 43...¤d4 44.£c4 ¤e6= ] 44.£d1?? White lets it slip away

[ 44.£d2 ¦c7 ( 44...¦xc5??capturing this pawn is a mistake

45.¦d7 ¦c7 46.¦xe7+ ¦xe7 47.a4+- ) 45.c6 ¢g6± ( 45...¦xc6?? 46.¦d7 ¢f8 47.¦xe7 ¢xe7 48.£d5+- )]

44...¦c7?? forfeits the advantage [ 44...¤c3!? 45.¦d7 ¤xd1 46.¦xe7+ ¢f8³ ]

45.£c1 Twofold repet i t ion £e6Diagram

[ 45...¦c6 46.£d2 ¢g6± ( 46...¦xc5?? That pawn ispoisoned 47.¦d7 ¦c7 48.¦xe7+

¦xe7 49.a4+- )]

XABCDEFGHY8-+-+-+-+(7+-tr-+-mk-'6p+-+qzp-zp&5+nzPRzp-zp-%4-+-+P+-+$3zP-+-+N+P#2-+-+-+PmK"1+-wQ-+-+-![xabcdefghy

46.£d1?? White loses the upperhand

[ ¹46.£b2± ] 46...¤c3-+ 47.£b3

[ 47.¦d6

A) 47...¦xc5?! 48.£d3 ( ‹48.¦xe6 ¤xd1 49.¦xa6 ¦c4∓ ) 48...£e8 49.¦xa6= ; B) 47...¤xd1 48.¦xe6 a5∓ ]

47...¤xd5 [ 47...¤xe4!? 48.c6 ¤c5 49.£b8 £xc6 50.¦d8-+ ]

48.exd5∓ £c8 [ ¹48...£d7 49.c6 £d6∓ ]

49.c6= Pushes the passed pawn ¢g6

[ 49...h5!?= ] 50.¤d2² £f5?

[ 50...£d8² ] 51.¤f3?? stumbles just before thefinish line

[ 51.d6 £f4+ 52.¢h1+- ] 51...e4 Black threatens to winm a t e r i a l : e 4 x f 3 52.¤d4White threatens to win material:Nd4xf5 £f4+?? allows theopponent back into the game

[ ¹52...£e5+ 53.£g3 £xd5 54.£xc7 £xd4= ]

53.¢h1?? there were better waysto keep up the pressure

[ 53.£g3 £d2 54.d6 ¦xc6 ( 54...£xd4 55.dxc7 £d5 56.c8£ £f7 57.c7 a5 58.£h8 a4 59.c8£ £f8 60.£cxf8 e3 61.£hxf6+ ¢h5 62.£8xh6# ) 55.¤xc6 e3 56.¤e7+ ¢f7+- ]

53...£f2?? with this move Blackloses his initiative

[ ¹53...¦c8 54.¤e6 £e5∓ ] 54.d6+- £f1+

[ 54...£xd4 55.dxc7 £a1+ 56.¢h2 £e5+ 57.¢g1 £xc7 58.£g8+ ¢f5 59.£d5+ ¢g6 60.£xe4+ ¢g7+- ]

55.¢h2 £f4+ 56.¢h1 [ ¹56.£g3!? seems even better £xg3+ 57.¢xg3 ¦c8+- ]


56...£xd6?? spoils everything. [ 56...£c1+ 57.¢h2 £f4+ 58.£g3 ¦c8+- ]

57.£c2 [ ¹57.£g8+ finishes off theopponent ¦g7 58.£xg7+ ¢xg7

59.¤f5+ ¢f8 60.¤xd6+- ] 57...£xd4-+ 58.¢h2 £d6+ 59.¢h1 £xc6

[ 59...f5 60.£e2 ¦xc6 61.£e3 £c7 62.£g1 ¦c1 63.h4 ¦xg1+ 64.¢xg1 £c1+ 65.¢h2 e3 66.h5+ ¢xh5 67.g4+ ¢xg4 68.¢g2 £d2+ 69.¢g1 e2 70.¢f2 e1£# ]

60.£e2 £c1+ 61.¢h2 £f4+ 62.g3 £f3 63.£d2

[ 63.£xf3 does not win a prize exf3 64.¢g1 ¢f5 65.a4 ¦c2 66.g4+ ¢f4 67.¢f1 ¢g3 68.¢e1 f2+ 69.¢d1 ¦a2 70.h4 f1£# ]

63...£d3 64.£b2 [ 64.£g2 doesn't change theoutcome of the game ¦c2 65.a4

¦xg2+ 66.¢xg2 £f3+ 67.¢g1 e3 68.h4 £xg3+ 69.¢h1 e2 70.h5+ ¢xh5 71.a5 e1£# ]

64...¦c2+ [ 64...¦c2+ 65.£xc2 £xc2+ 66.¢g1 e3 67.h4 £f2+ 68.¢h1 e2 69.h5+ ¢f7 70.g4 e1£# ]

0-1

B22Kobayashi,Katsuhiko 1501Abe,Taisei 1458


B22: Sicilian: 2 c3 1.e4 c5 2.c3 d5 3.exd5 £xd5 4.¤f3 ¥g4 5.¥e2 ¤f6 6.0-0 e6

7.d4 cxd4 8.cxd4 ¤c6 9.¤c3 £d8 10.¥e3 ¥e7 DiagramXABCDEFGHY8r+-wqk+-tr(7zpp+-vlpzpp'6-+n+psn-+&5+-+-+-+-%4-+-zP-+l+$3+-sN-vLN+-#2PzP-+LzPPzP"1tR-+Q+RmK-![xabcdefghy

last book move 11.¦c1 [ 11.h3 ¥h5² ]

11...0-0= 12.£d2 White has anactive position ¦c8 13.¦fd1 ¤d5

14.¤xd5 exd5 [ 14...£xd5 15.h3 ¥h5 16.¥c4= ]

15.£e1 [ 15.¤e5 ¥b4 16.£d3 ¥xe2 17.£xe2 ¥d6= ]

15...¥f6 16.¤e5 ¤xe5 [ 16...¥xe2 17.£xe2 ¤xe5 18.¦xc8 £xc8 19.dxe5 ¥xe5 20.¦xd5= ]

17.dxe5 ¦xc1 [ 17...¥xe2 18.¦xc8 £xc8 19.¦c1² ]

18.¥xc1 [ 18.¦xc1 ¥xe2 19.exf6 d4 20.fxg7 ¦e8 21.£xe2 £e7± ]

18...¥xe2² 19.£xe2 Black has anew passed pawn: d5 ¦e8 20.£b5White threatens to win material:Qb5xd5

[ ¹20.f4!?± ] 20...¦xe5= 21.£xb7 £e8Black has a mate threat 22.¢f1 a5

[ 22...d4 23.b3³ ]


23.¥e3 [ 23.¥f4 ¦e2 24.£a6 ¦e4² ]

23...h6 Prevents intrusion on g5 24.¦c1

[ 24.b3 £e6= ] 24...¦e7 Black threatens to winmaterial: Re7xb7

[ 24...£a4 25.£b3 £xb3 26.axb3³ ]

25.£b6 Diagram [ 25.£xd5 ¥xb2 26.¦c4 ¦e5= ]

XABCDEFGHY8-+-+q+k+({7+-+-trpzp-'6-wQ-+-vl-zp&5zp-+p+-+-%4-+-+-+-+$3+-+-vL-+-#2PzP-+-zPPzP"1+-tR-+K+-!xabcdefghy

White threatens to win material:Qb6xa5 25...¢h7

[ 25...£d7 26.b3 d4 27.¥d2³ ] 26.£xa5 ¥xb2 White has a newp a s s e d p a w n : a 2 . 27.¦b1White threatens to win material:Rb1xb2 ¥e5 28.g3 Covers f4

[ 28.£xd5!? deservesconsideration ¥xh2 29.g3 ¥xg3

30.£d3+ g6 31.¥c5² ] 28...d4³ Black threatens to winmaterial: d4xe3 29.¥d2 ¥f6

[ 29...£c6!? 30.¢g1 £f3³ ] 30.£f5+= ¢g8 31.£d3 £a8Black has a mate threat 32.¢g1

£e8 33.¥f4 ¥e5 [ ¹33...¦e1+!? would keep Black

i n t h e g a m e 34.¦xe1 £xe1+ 35.¢g2 £e6³ ]

34.¥xe5± ¦xe5 35.£xd4 ¦e1+ [ 35...¢h7 36.¦a1± ]

36.¦xe1 £xe1+ 37.¢g2 £e2? [ 37...£e8!? 38.a4 £c6+ 39.¢f1 £c1+ 40.¢e2 £c2+ 41.¢f3 £b3+ 42.¢g2 £b7+ 43.f3 £b3± ]

38.a4 [ 38.£d8+!? ¢h7 39.£a8 h5+- ]

38...£a6 39.£d7 £g6??shortens the misery for Black

[ ¹39...£a8+ 40.¢g1 £a5+- ] 40.£d4

[ ¹40.£b7 and White hasprevailed £f5 41.£a8+ ¢h7

42.a5+- ] 40...£c6+

[ 40...£a6 41.£e4+- ] 41.¢g1

[ ¹41.¢f1!? g6 42.h4 £h1+ 43.¢e2+- ]

41...£c1+= 42.¢g2 £c6+ 43.¢h3 £e6+ 44.£g4 £a6 45.£d1 £e6+

[ 45...£a8 46.£d7± ] 46.¢g2+- £c6+ 47.¢g1 £b6??Black falls apart

[ 47...£a8 48.£d7 £a5 49.£c8+ ¢h7 50.£e8+- ]

48.£c2 [ ¹48.£d5 and White takes homethe point £a6 49.a5+- ]

48...£e6 [ ¹48...£a5+- ]

49.£d1 £b6 50.£e1 [ 50.£d5 makes it even easier forWhite £a6 51.a5 ¢h7+- ]

50...£c6 [ ¹50...¢f8+- ]

51.a5 £b5 52.£a1 £a6 53.£e5 [ ¹53.£a3+- and White canalready relax ]


53...£d3?? terrible, but the game islost in any case

[ ¹53...¢f8+- ] 54.£e8+

[ ¹54.£b8+ and White wins ¢h7 55.£b7 h5+- ]

54...¢h7 55.£a8 [ ¹55.£c6 and White has it in thebag h5 56.h4+- ]

55...£c3 [ 55...h5 56.£b7 h4 57.£xf7 £b5+- ]

56.a61-0

B32Ito,Katsuhide 1420Masui,Hiraku 1287


B 3 2 : S i c i l i a n : L ö w e n t h a l a n dKalashnikov Variations

1.e4 c5 2.¤f3 ¤c6 3.d4Diagram

(Diagram)

last book move £b6? [ 3...cxd4!? should be examinedmore closely 4.¤xd4 e5 5.¤xc6

bxc6= ] 4.dxc5

[ 4.d5 ¤d4± ] 4...£xc5 5.¤c3 e5

[ 5...¤f6 6.¥d3± ] 6.¤d5

[ 6.¤b5 £b6 7.¥e3 £a5+ 8.c3 d6+- ]

6...£a5+ 7.c3 d6 8.b4 £d8 9.¥e2

[ 9.¥c4!? h6± ]

XABCDEFGHY8r+lwqkvlntr({7zpp+pzppzpp'6-+n+-+-+&5+-zp-+-+-%4-+-zPP+-+$3+-+-+N+-#2PzPP+-zPPzP"1tRNvLQmKL+R!xabcdefghy

9...¤f6± 10.0-0 [ 10.£d3!?± ]

10...¤xe4² 11.¤g5White threatens to win material:Ng5xe4 ¥f5

[ 11...¤xg5!? is interesting 12.¥xg5 ¥e7= ]

12.¥d3 [ 12.£d3 ¤xg5 13.£xf5 ¤e6± ]

12...¤xg5 DiagramXABCDEFGHY8r+-wqkvl-tr(7zpp+-+pzpp'6-+nzp-+-+&5+-+Nzplsn-%4-zP-+-+-+$3+-zPL+-+-#2P+-+-zPPzP"1tR-vLQ+RmK-![xabcdefghy

13.¥xg5?? gives the opponentnew chances

[ ¹13.¥xf5 ¤e6 14.£g4² ] 13...f6?? what a pity, victory was insight


[ ¹13...£xg5 14.¤c7+ ¢d7 15.¤xa8 ¥e7∓ ]

14.¥xf6 [Not 14.¥xf5 fxg5 15.£h5+ g6 16.¥xg6+ hxg6 17.£xh8 ¤e7 18.¤f6+ ¢f7+- ]

14...gxf6 15.£h5+ [ 15.¥xf5!? keeps an even firmergrip ¥g7 16.¥e6 h5+- ]

15...¥g6 16.¥xg6+ hxg6 17.£xg6+

[ ¹17.£xh8!? ¢f7 18.£h4+- ] 17...¢d7± 18.£f5+ ¢e8 19.¤xf6+ ¢e7?

[ ¹19...¢f7 20.¤e4+ ¢e8± ] 20.¤d5++- ¢e8 21.f4

[ ¹21.£e6+ keeps an even firmergrip ¥e7 22.b5+- ]

21...¤e7± 22.¤f6+ ¢f7 23.£g4 ¥g7??

[ 23...£c8 24.£f3 A) 24...¢xf6 25.fxe5+ ¢g6 26.£f7+ ( 26.exd6?!is easily refuted £f5 27.£e2

£h5 28.£e4+ ¢g7 29.dxe7 £xh2+ 30.¢f2 £h4+ 31.£xh4 ¦xh4+- ) 26...¢h6 27.¦f6+ ( 27.exd6?! is impossible ¤g6 28.¦f6 £g4= ) 27...¢g5 28.¦f3+- ; B) 24...e4 25.¤xe4 £c6+- ]

24.fxe5+- dxe5 25.¤h5+ ¢e8 [ 25...¤f5 cannot change what isi n s t o r e f o r ? 26.¦xf5+ ¢e7

27.£xg7+ ¢d6 28.£xe5+ ¢d7 29.£g7+ ¢e6 30.£f7+ ¢d6 31.¦c5 ¦xh5 32.¦d1+ ¦d5 33.¦dxd5# ]

26.¤xg7#1-0

D02Yamada,Akihiro 1855Yamada,Shinmei 1860


D02 : 1 d4 d5 2 N f3 s i de l i nes ,including 2...Nf6 3 g3 and 2...Nf6 3Bf4

1.d4 d5 2.¤f3 ¤f6 3.¥f4 c6 4.e3 DiagramXABCDEFGHY8rsnlwqkvl-tr({7zpp+-zppzpp'6-+p+-sn-+&5+-+p+-+-%4-+-zP-vL-+$3+-+-zPN+-#2PzPP+-zPPzP"1tRN+QmKL+R!xabcdefghy

last book move e6 [ 4...£b6 5.b3= ]

5.¥d3 ¥e7 6.0-0 White castlesa n d i m p r o v e s k i n g s a f e t y 0-0

7.¤bd2 ¤bd7 [ 7...¤h5 8.¥e5² ]

8.c3 Black's piece can't move: c8 ¤h5 9.¥g3

[ 9.£c2 f5² ] 9...¤xg3= 10.hxg3 Black has thepair of bishops £c7 11.b4 e5

12.dxe5 ¤xe5 13.¤xe5 £xe5 14.£c2 g6 Secu res f 5 15.¤f3White threatens to win material:Nf3xe5 £c7 16.¦ab1 ¥f6 17.¤d4

a6 Covers b5 18.¤b3 ¥e7 19.£d2 ¥e6 20.¤d4 ¥f6 21.¦fc1 ¦ad8 22.¤b3 ¥e7 23.£e2 ¦fe8 24.a4


¥f8 25.¤d4 ¥g7 26.£f3 £d7 27.£e2 ¦a8 28.¤b3 ¥f8 29.a5White gains space ¦ad8 30.£c2

£c7 31.¦d1 ¥g4 Black threatensto win mater ia l : Bg4xd1 32.¦dc1

¥e6 Twofold repetition 33.¦b2 [ 33.¦d1 ¥g7³ ]

33...£d7 34.¦cb1 [ 34.¦bb1 ¥d6³ ]

34...¦b8 35.£d2 ¦ed8 36.¤c5 ¥xc5

[ 36...£d6 37.¥e2= ] 37.bxc5 Black has a new backwardpawn: b7 £e7 38.¥xa6 £xc5

39.¥xb7 DiagramXABCDEFGHY8-tr-tr-+k+({7+L+-+p+p'6-+p+l+p+&5zP-wqp+-+-%4-+-+-+-+$3+-zP-zP-zP-#2-tR-wQ-zPP+"1+R+-+-mK-!xabcdefghy

¥f5?? [ ¹39...£xa5 the rescuing straw 40.¥xc6 ¦xb2 41.£xb2 ¦c8= ]

40.¦a1+- ¥c8 41.a6 ¥xb7 [ 41...£a7 42.¥xc6 ¥xa6 43.¦xb8 ¦xb8 44.¥xd5 ¦b6+- ]

42.¦xb7 [ ¹42.a7 and White wins ¦bc8 43.¦xb7+- ]

42...¦xb7= 43.axb7 £b6Black threatens to win material:Qb6xb7 44.¦a8 ¦f8 45.¦xf8+

¢xf8 A queen endgame occured 46.£d4 White threatens to win

material: Qd4xb6 £xb7 47.£h8+White forks: f8+h7 ¢e7 48.£xh7

£b3 Black threatens to winmaterial: Qb3xc3

[ 48...£b1+!? 49.¢h2 £b2= ] 49.£h4+² ¢d7 50.£g4+ ¢d8 51.£d4 £b7 52.c4 £b1+ 53.¢h2 £b4?

[ ¹53...£f5± ] 54.£f6++- ¢c7?? Black falls apart

[ 54...£e7 55.£xc6 dxc4 56.£xc4 £b7+- ]

55.£xf7+ ¢c8 [ 55...¢b6 doesn't do any good 56.cxd5 £g4 57.£f3+- ]

56.cxd5 c5 [ 56...cxd5 a last effort to resistthe inevitable 57.£xg6 £f8+- ]

57.d6 £a5 58.d7+ [ 58.d7+ ¢c7 59.£e7+- ]

1-0

E97Takayasu,Nobuyuki 1532Kobayashi,Hidehiko 1523


E97: King's Indian: Classical MainLine (6...e5 7 0-0 Nc6): 8 Be3 and 8d5 Ne7, not 9 Ne1

1.d4 ¤f6 2.c4 g6 3.¤c3 ¥g7 4.e4 d6 5.¤f3 0-0 6.¥e2 e5 7.0-0 ¤c6 8.d5 ¤e7 9.b4 ¤d7 10.¦e1 f5 11.¤g5 ¤f6 12.¥f3 h6 13.¤e6 ¥xe6 14.dxe6 Diagram

(Diagram)

last book move. White has the pairof bishops £c8 15.¤d5 ¤exd5

[ 15...£d8 16.b5² ]


XABCDEFGHY8r+-wq-trk+({7zppzp-sn-vl-'6-+-zpPsnpzp&5+-+-zpp+-%4-zPP+P+-+$3+-sN-+L+-#2P+-+-zPPzP"1tR-vLQtR-mK-!xabcdefghy

16.cxd5± [ 16.exd5?! e4 17.¥e2 ¤xd5 18.£xd5 ¥xa1 19.e7+ ¦f7= ]

16...fxe4 17.¥xe4 ¤xe4 18.¦xe4 £d8

[ 18...c6 19.¦c4± ] 19.¥e3 £e7

[ 19...c6+- ] 20.£d2

[ 20.¦c1 c6 21.dxc6 ¦ac8+- ] 20...£f6?

[ ¹20...c6± ] 21.¦c1+- £f5

[ 21...¦ac8 22.f3+- ] 22.f3 ¦fc8

[ 22...c6 23.dxc6 £xe6 24.cxb7+- ]

23.b5 [ ¹23.¥xh6!? keeps an evenfirmer grip ¦ab8+- ]

23...a6 24.a4 [ 24.bxa6 keeps an even firmergrip ¦xa6 25.¥xh6 b5+- ]

24...c6 [ 24...axb5 25.axb5 c6 26.b6+- ]

25.bxc6 [ ¹25.dxc6!? and White canalready relax bxc6 26.b6 d5+- ]

25...bxc6 26.¦xc6

[ 26.¦ec4!? c5+- ] 26...¦xc6± 27.dxc6 £xe6 28.£c2 d5 29.¦b4 d4 30.¥d2 ¥f8 31.¦b7 ¦c8 32.¦b6 Diagram

[ ¹32.c7 ¢f7 33.¦b8+- ]

XABCDEFGHY8-+r+-vlk+({7+-+-+-+-'6ptRP+q+pzp&5+-+-zp-+-%4P+-zp-+-+$3+-+-+P+-#2-+QvL-+PzP"1+-+-+-mK-!xabcdefghy

White threatens to win material:Rb6xa6 32...£d6??

[ ¹32...d3 would bring relief 33.£c1 e4 34.fxe4 £xe4 35.¦xa6 ¥b4= ]

33.a5 [ 33.£c4+ ¢h8 34.¦b7 ¥e7+- ( 34...£xc6?? it may looktempting but Black must resistcapturing the pawn 35.£f7 £xb7

36.£xb7+- )] 33...d3 34.£c4+ ¢h8 35.¦xa6

[ ¹35.¢f1 might be the shorterpath £d4 36.£e6 £a1+ 37.¢f2

£d4+ 38.¢g3+- ] 35...£b8?? terrible, but the game islost in any case

[ 35...h5+- ] 36.¦b6

[ 36.£xd3?! s u c c u m b s t o ¦d8 37.£c3 ¦xd2 38.£xd2 ¥c5+ 39.¢f1 £b5+ 40.£e2 £b1+ 41.£e1 £d3+ 42.£e2 £b1+


43.£e1 £d3+ 44.£e2 £b1+= ] 36...£d6 37.¦b7

[ ¹37.¢f1+- seems even better ] 37...£a3?? the pressure is toomuch, Black crumbles

[ ¹37...£c5+ 38.£xc5 ¥xc5+ 39.¢f1 ¦xc6+- ]

38.£f7 ¥c5+ [ 38...¥e7 does not improveanything 39.¦xe7 £c5+ 40.¢f1

£xe7 41.£xe7 g5 42.£xe5+ ¢g8 43.£e6+ ¢g7 44.£xc8 h5 45.c7 h4 46.¥c3+ ¢g6 47.£g8+ ¢h6 48.£g7+ ¢h5 49.£h7# ]

39.¢f1 £a1+ [ 39...¥e7 hardly improvesanything 40.¦xe7 £xe7 41.£xe7 g5 42.£xe5+ ¢g8 43.£e6+ ¢g7 44.£xc8 ¢f6 45.c7 h5 46.£d8+ ¢e5 47.¥c3+ ¢e6 48.c8£+ ¢f7 49.£f5# ]

40.¥e1 [ 40.¥e1 £xe1+ 41.¢xe1 d2+ 42.¢d1 ¦c7 43.£xc7 ¥e7 44.£xe7 ¢g8 45.£g7# ]

1-0

C87Nishimori,Toshiyuki 1765Kobayashi,Katsuhiko 1501


C87: Closed Ruy Lopez: Steinitz-type lines after 6 Re1 d6

1.e4 e5 2.¤f3 ¤c6 3.¥b5 a6 4.¥a4 ¤f6 5.0-0 d6 6.¦e1 ¥e7 7.h3 0-0 8.c3 b5 9.¥c2 ¥b7 10.d4 exd4 11.cxd4 ¤b4Diagramlast book move 12.¤bd2

[ 12.¥b3 0 ]

XABCDEFGHY8r+-wq-trk+(7+lzp-vlpzpp'6p+-zp-sn-+&5+p+-+-+-%4-sn-zPP+-+$3+-+-+N+P#2PzPL+-zPP+"1tRNvLQtR-mK-![xabcdefghy

12...¤xc2 13.£xc2 Black has thepair of bishops ¦e8 14.¤f1 ¤xe4

[ ¹14...c5= would keep Black inthe game ]

15.¦xe4± ¥xe4 16.£xe4 ¥f6 17.£d3 c5 18.¥e3

[ 18.¤e3 ¦c8± ] 18...c4 19.£c3 ¦a7 20.¤g3

[ 20.¥f4 ¦e4 21.¥d2 ¦b7± ] 20...g6 21.a4 ¦ae7

[ 21...¦b7 22.axb5 axb5 23.¦a6± ]

22.axb5 axb5 23.£b4 £b6 24.¤e2 ¦a7

[ 24...¦xe3 25.fxe3 ¦xe3 26.£d2+- ]

25.¦xa7 £xa7 26.£xb5 £a1+ [ 26...¦b8 27.£xc4 £a1+ 28.¢h2 £xb2 29.¤c3+- ]

27.¢h2 ¦c8 [ 27...£a8 28.£xc4 ¦c8 29.£d3+- ]

28.¤c3 ¢g7 [ 28...£a7 29.¤d5 ¥g7 30.¥f4+- ]

29.¤d2 [ ¹29.¤e4 makes it even easierfor White £a7 30.¤xd6+- ]

29...d5


[ 29...£a8+- ] 30.¤xd5 £a2 Diagram

[ 30...¥h4 there is nothing elseanyway 31.¤f3 £a7 32.¤xh4

£b8+ 33.£xb8 ¦xb8+- ]

XABCDEFGHY8-+r+-+-+(7+-+-+pmkp'6-+-+-vlp+&5+Q+N+-+-%4-+pzP-+-+$3+-+-vL-+P#2qzP-sN-zPPmK"1+-+-+-+-![xabcdefghy

31.¤xf6 ¢xf6 32.£e5#1-0

A28Abe,Taisei 1458Koyahata,Taku 1475


A28: English Opening: Four KnightsVariation

1.c4 e5 2.¤c3 ¤f6 3.¤f3 ¤c6 4.e3 d5 5.cxd5 ¤xd5 6.¥b5 ¤xc3 7.bxc3 Diagram

(Diagram)

l a s t b o o k m o v e £f6 8.h3Consolidates g4

[ 8.d4 ¥d6 9.d5 a6= ] 8...¥d7 9.d4 ¥d6 10.e4

[ 10.¥d3 £e7 11.e4 0-0² ]

XABCDEFGHY8r+lwqkvl-tr({7zppzp-+pzpp'6-+n+-+-+&5+L+-zp-+-%4-+-+-+-+$3+-zP-zPN+-#2P+-zP-zPPzP"1tR-vLQmK-+R!xabcdefghy

10...exd4 11.cxd4 ¥b4+ [ 11...0-0 12.e5 ¥b4+ 13.¥d2² ]

12.¥d2 [ 12.¢f1 a6 13.¥a4 £e7² ]

12...£e7 [ ¹12...¥xd2+!? would keep Blackalive 13.£xd2 0-0-0= ]

13.¥d3 f5 14.e5 White has a newprotected passed pawn: e5. Whitehas an active position

[ 14.0-0 ¥xd2 15.£xd2± ( 15.¤xd2?! 0-0-0= )]

14...¥e6² 15.0-0 ¥xd2 16.£xd2 [Inferior is 16.¤xd2 0-0-0∓ ]

16...0-0-0 17.¥e2 [ 17.£e3 ¦hf8 18.¥b5 ¥d5 19.¥xc6 ¥xc6² ]

17...£b4 Increases the pressure onthe backward pawn 18.£xb4 ¤xb4

19.a4 [ 19.¦fd1 h6= ]

19...¤c2 Black threatens to winmaterial: Nc2xa1

[ 19...¤c6 20.¦ad1 ¥d5 21.¢h2∓ ]

20.¦ad1= ¦d7 [ 20...¥d5 21.¥d3 ¥xf3 22.¥xf5+ ¢b8 23.¥xc2 ¥xd1 24.¦xd1³ ]

21.¥d3


[ 21.¦d2 ¤b4² ] 21...¤xd4 22.¤xd4 ¦xd4 23.¥xf5DiagramXABCDEFGHY8-+k+-+-tr({7zppzp-+-zpp'6-+-+l+-+&5+-+-zPL+-%4P+-tr-+-+$3+-+-+-+P#2-+-+-zPP+"1+-+R+RmK-!xabcdefghy

White pins: Bf5xe6 ¥xf5?? [ ¹23...¦xd1 is a viable option 24.¥xe6+ ¦d7= ]

24.¦xd4+- ¦d8 [ 24...c5 25.¦d6+- ]

25.¦fd1 ¦xd4 26.¦xd4 c5 27.¦d5 b6 28.a5! Deflection: a5 ¢c7

[ 28...bxa5 29.¦xc5+D o u b l e a t t a c k ( 29.¦xc5+Deflection ; 29.¦xc5+ Decoy )]

29.g4 ¥d7 [ 29...¥e4 30.axb6+ axb6 31.¦d2+- ]

30.axb6+ axb6 31.¦d3 [ 31.f4!? and White can alreadyrelax g6+- ]

31...b5 [ 31...g5 32.¦d2+- ]

32.¦e3 [ 32.¢f1 c4 33.¦d4 g5+- ]

32...¥e6 33.f4 g6 34.f5 [ ¹34.¢f2+- a shame that Whiteoverlooked this excellent chance ]

34...gxf5² 35.gxf5 ¥xf5 36.e6Don't underestimate that pawn. .

¥g6 37.e7 ¥e8?

[ ¹37...¢d7² and Black is still inthe game ]

38.¦d3+- ¥d7 39.¦e3 ¥e8½-½

B30Sato,Yasuji 1429Masui,Hiraku 1287


B30: Sicilian: 2...Nc6 3 Bb5, lineswithout ...g6

1.e4 c5 2.¤f3 ¤c6 3.¥c4DiagramXABCDEFGHY8r+lwqkvlntr({7zpp+pzppzpp'6-+n+-+-+&5+-zp-+-+-%4-+L+P+-+$3+-+-+N+-#2PzPPzP-zPPzP"1tRNvLQmK-+R!xabcdefghy

l a s t b o o k m o v e ¤f6 4.e5White threatens to win material:e5xf6 ¤g4 Black threatens to winmaterial: Ng4xe5 5.0-0

[ ¹5.£e2!?² and White could wellhope to play on ]

5...¤gxe5³ 6.¤xe5 White has am a t e t h r e a t ¤xe5 7.¥d5 d6

8.¦e1 e6 9.¥b3 ¥d7 10.f4 £b6 [ 10...¤c6 11.f5 £f6 12.fxe6 fxe6 13.c3∓ ]

11.¥xe6? [ ¹11.fxe5!? would allow White to


play on c4+ 12.d4 cxb3 13.axb3 dxe5 14.¦xe5= ]

11...¥xe6-+ 12.fxe5 c4+ 13.¢h1 dxe5 14.¤c3 £d4

[ 14...f6!? 15.b3-+ ] 15.¦e4 £d6 16.b3 £c5

[ 16...f5 17.¦e1 0-0-0 18.bxc4 ¥xc4 19.d3∓ ]

17.¥b2 ¥f5?? throwing away theadvantage

[ ¹17...¥d6 18.¦e1 ¥c7∓ ] 18.¤a4 £c8 19.¦xc4

[ 19.¦xe5+ ¥e6 20.£g4 £c6± ] 19...£e6 20.¤c5

[ ¹20.£f3!? f6 21.¦f1± ] 20...¥xc5= 21.¦xc5 DiagramXABCDEFGHY8r+-+k+-tr({7zpp+-+pzpp'6-+-+q+-+&5+-tR-zpl+-%4-+-+-+-+$3+P+-+-+-#2PvLPzP-+PzP"1tR-+Q+-+K!xabcdefghy

e4?? [ ¹21...f6= saving the game ]

22.¦e5+- £xe5 23.¥xe5 f6 [ 23...0-0 is not the saving move 24.£e2 ¥g6 25.¥c3+- ]

24.¥d4 [ 24.£f1 and White can alreadyrelax ¥d7 25.¥f4 0-0 26.£c4+

¢h8 27.£xe4 ¥c6+- ] 24...0-0-0

[ 24...0-0 doesn't get the cat offthe tree 25.£h5 ¥g6 26.£d5+

¦f7 27.c4+- ]

25.¥xa7 g6 [ 25...¦d6 cannot undo what hasalready been done 26.a4+- ]

26.£e2 ¦he8 [ 26...¦d6 27.g4 ¥e6 28.¥c5+- ( 28.£xe4?! is a bad alternative ¥d5 29.£xd5 ¦xd5= )]

27.£c4+ ¢d7 28.£b5+ [ ¹28.¥b6!? might be the shorterpath ¦c8 29.£d5+ ¢e7

30.¥c5+ ¦xc5 31.£xc5+ ¢e6 32.£c4+ ¢d6+- ]

28...¢e7 29.£xb7+ ¦d7 30.£b4+ ¢f7 31.¥e3 ¦c8

[ 31...¦c7 does not win a prize 32.c4+- ]

32.c4 ¥e6 33.g3 [ ¹33.¦f1 seems even better ¥f5+- ]

33...f5 [ 33...¦cc7 does not help much 34.£b6+- ]

34.a4 ¦dd8 [ 34...¦e7 doesn't changeanything anymore 35.a5 ¥d7

36.a6+- ] 35.a5

[ ¹35.£b7+ seems even better ¥d7 36.¥g5+- ]

35...¦g8 36.a6 [ 36.£b7+ ¥d7 37.£xd7+ ¢f8 38.¥h6+ ¦g7 39.¥xg7+ ¢g8 40.¥h6 ¦xc4 41.£g7# ]

36...¦ce8 37.a7 ¥d7 38.£b7White prepares a8 ¢e6

[ 38...f4 doesn't change theoutcome of the game 39.£xd7+

¦e7 40.£d5+ ¦e6 41.a8¦ ¦xa8 42.¦xa8 fxe3 43.¦a7+ ¢f6 44.£d8+ ¦e7 45.¦xe7 exd2 46.£f8+ ¢g5 47.£f4+ ¢h5 48.¦xh7# ]

39.£d5+


[ 39.¥g5 ¢d6 40.¦a6+ ¥c6 41.¥f6 ¦e5 42.¦xc6# ]

39...¢e7 [ 39...¢f6 cannot change what isi n s t o r e f o r ? 40.£xd7 ¦e7

41.¦a6+ ¢f7 42.£d5+ ¢g7 43.£d4+ ¦e5 44.£xe5+ ¢f8 45.a8£+ ¢f7 46.¦a7# ]

40.¥c5+ [ 40.¥g5+ ¢f8 41.£d6+ ¢f7 42.£f6# ]

40...¢d8 [ 40...¢f6 cannot change destiny 41.£xd7 ¦e6 42.¥d4+ ¢g5 43.£xh7 ¦h8 44.£xh8 ¢g4 45.¢g2 f4 46.£h4+ ¢f5 47.£xf4# ]

41.a8£+ ¢c7 42.¦a7#1-0

A58Taskayasu,Nobuyuki 1532Nishimori,Toshiyuki 1765


A58: Benko/Volga Gambit: Lineswith 5 bxa6

1.d4 ¤f6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 ¥xa6 6.¤c3 g6 7.g3 d6 8.¥g2 ¥g7 9.¤f3 0-0 10.0-0 ¤bd7 11.£c2 £c7 12.¦d1 ¦fb8 13.¦b1 Diagram

(Diagram)

l a s t b o o k m o v e ¤b6 14.b3Cont ro ls a4+c4 £b7 d5 drawsheavy fire 15.¥e3

[ 15.¤g5 h6 16.¤ge4 ¤bd7± ( 16...¤fxd5?? That pawn ispoisoned 17.¤xd5 ¤xd5

XABCDEFGHY8rtr-+-+k+({7+-wqnzppvlp'6l+-zp-snp+&5+-zpP+-+-%4-+-+-+-+$3+-sN-+NzP-#2PzPQ+PzPLzP"1+RvLR+-mK-!xabcdefghy

18.¦xd5+- )] 15...£d7

[ 15...¤fxd5!? 16.¤xd5 ¤xd5= ] 16.h3

[ 16.¥f4 ¤h5 17.¥d2 c4± ] 16...¥b7² 17.¤g5

[ 17.¤h4!?² is interesting ] 17...h6= 18.¤ge4 ¤xe4 19.¤xe4

[ ¹19.¥xe4 £xh3 20.¤b5= ] 19...£b5

[ ¹19...¤xd5!? and Black canhope to survive 20.¦xd5 ¥xd5

21.¤f6+ ¥xf6 22.¥xd5 ¢g7 ( 22...£xh3? is nothing becauseof 23.£xg6+ ¢h8 24.¥xf7+- )

23.¥xa8 ¦xa8= ] 20.¤c3 ¥xc3

[ 20...£a5!? 21.¥d2 £a3± ] 21.£xc3 ¦xa2 22.¥xh6 f6 23.¦d2 ¦ba8

[ 23...¦xd2 A) 24.¥xd2?! ¥xd5 25.£c2 ¥f7= ( 25...£xe2?? that pawnis deadly bait and wil l causeBlack grave problems 26.£xg6+

¢h8 27.¦e1 £xe1+ 28.¥xe1+- ); B) 24.£xd2 ¢h7 25.¥f4± ]

24.¥f3


[ 24.£e3 ¦a1 25.¦xa1 ¦xa1+ 26.¢h2 £e8+- ]

24...¦8a3 [ 24...¤d7 25.¥g4± ]

25.£d3 [ ¹25.£e3!? ¦a1 26.¦xa1 ¦xa1+ 27.¢g2+- ]

25...£xd3² 26.¦xd3 [Weaker is 26.exd3 ¥xd5 27.¦xa2 ¦xa2³ ]

26...¥a6 Black threatens to winm a t e r i a l : B a 6 x d 3 27.¦e3White threatens to win material:Re3xe7 ¢f7 28.h4 ¤d7 29.h5

[ 29.¥f4 ¤e5= ] 29...¤e5 30.hxg6+ ¢xg6 31.¥f4 ¤xf3+ 32.exf3 DiagramXABCDEFGHY8-+-+-+-+({7+-+-zp-+-'6l+-zp-zpk+&5+-zpP+-+-%4-+-+-vL-+$3trP+-tRPzP-#2r+-+-zP-+"1+R+-+-mK-!xabcdefghy

O p p o s i t e c o l o u r e d b i s h o p sappeared ¢f7

[ ¹32...¦a1 33.¦xa1 ¦xa1+ 34.¢g2 ¢f7= ]

33.b4?? hands over the advantageto the opponent

[ ¹33.¦be1!? ¢g6 34.¦xe7± ] 33...c4?? not a good decision,because now the opponent is rightback in the game

[ ¹33...¦xe3 and Black couldh a v e g a i n e d t h e a d v a n t a g e

34.fxe3 ¥d3-+ ] 34.¦xa3 ¦xa3 35.b5White threatens to win material:b5xa6

[ 35.¢g2 ¥b7³ ] 35...¥b7

[ 35...¦b3!? 36.¦xb3 cxb3³ ] 36.b6= He broke from his leash ¦b3

[Inferior is 36...¥xd5 37.b7 ¥xb7 38.¦xb7 ¦a1+ 39.¢g2± ]

37.¦xb3 cxb3 A bishop endgameoccured. 38.¥c1 ¥xd5 39.f4 ¢e6

40.¢f1 ¢d7 41.¥b2 ¢c6 42.¥d4 ¢b5 43.¢e2 ¥b7 Blocks the pawnon b6 44.g4 ¢c4 Black threatensto w in mater ia l : Kc4xd4 45.¥b2The bishop blocks b3 ¢d5 46.¢d3

¥a6+ 47.¢c3 White threatens towin material: Kc3xb3 ¢c6 48.g5

fxg5 49.fxg5 ¢xb6 50.g6Black has to watch this pawn ¥c8

51.¢xb3 ¢c5 52.¢c3 ¢d5 53.¢d3 L o s e s m a t e r i a l ¥f5+Black forks: d3+g6 54.¢e3 ¥xg6

55.f4 ¥f5 56.¥d4½-½

C05Kobayashi,Hidehiko 1523Yamada,Shinmei 1860


C05: French Tarrasch: 3...Nf6 4 e5Nfd7, 5 f4 and 5 Bd3 sidelines

1.e4 e6 2.d4 d5 3.¤d2 c5 4.c3 ¤c6 5.¤gf3 cxd4 6.cxd4 ¤f6 7.¥d3 ¥e7 8.0-0 dxe4 9.¤xe4 0-0 Diagramlast book move. Black castles andimproves king safety 10.¥g5 ¤xd4


XABCDEFGHY8r+lwq-trk+(7zpp+-vlpzpp'6-+n+psn-+&5+-+-+-+-%4-+-zPN+-+$3+-+L+N+-#2PzP-+-zPPzP"1tR-vLQ+RmK-![xabcdefghy

11.¤xf6+ [ 11.¤xd4 £xd4 12.£c2 h6= ]

11...¥xf6³ 12.¥xf6 ¤xf3+ [ 12...£xf6? catches the eye, but 13.¤xd4 ¥d7 14.¤b3+- ] [ 12...gxf6?? the bishop mustn'tb e t o u c h e d 13.¤xd4 f5

14.¤f3+- ] 13.£xf3 £xf6 14.£xf6 gxf6 15.¦ac1 ¦d8 16.¦fd1 ¥d7 17.¢f1

[ 17.¥e4 ¦ab8³ ] 17...¥c6∓ 18.¢e2 f5

[ 18...¥xg2? is a blank shot 19.¦g1+- ]

19.¢e3 ¦d7 20.¦d2 ¦ad8 [ 20...¥xg2? is no good becauseof 21.¦g1+- ]

21.¦cd1 ¢g7 22.f4 a5 23.g3 ¢f6 24.¥c4

[ 24.¥c2 ¦xd2 25.¦xd2 ¦xd2 26.¢xd2 ¢e7∓ ]

24...b5 [ 24...¦xd2 25.¦xd2 ¦xd2 26.¢xd2-+ ]

25.¦xd7 ¦xd7 [L e s s a d v i s a b l e i s 25...¥xd7 26.¥xb5 ¢e7 27.¦xd7+ ¦xd7 28.¥xd7 ¢xd7 29.b3² ]

26.¦xd7 ¥xd7 27.¥f1 e5 [ 27...¢e7 28.a3∓ ]

28.fxe5+³ ¢xe5 29.¥g2 b4B lack w ins space 30.a3 ¥e6

31.¥b7 ¥d5 Black threatens to winmater ia l : Bd5xb7 32.¥a6 ¥e4

33.¥c4 White threatens to winm a t e r i a l : B c 4 x f 7 ¥d5Black threatens to win material:Bd5xc4 34.¥b5

[ 34.¥a6!?= ] 34...h6 35.¥d3 ¥e6 36.¥a6 ¢d5 37.¢d3 ¢c5 38.h4 White has an e w b a c k w a r d p a w n : g 3 ¥d5

39.¥c8 ¥e4+ 40.¢d2 [ 40.¢e3 ¢c4 41.axb4 ¢xb4∓ ]

40...¢c4 [ ¹40...bxa3!? 41.bxa3 ¢c4-+ ]

41.axb4 axb4 42.¥d7 ¢b3Black threatens to win material:Kb3xb2 43.¢c1 ¢c4 44.¢d2Twofold repetition ¢d4 45.¥e8?

[ ¹45.¢e2³ and White could wellhope to play on ]

45...¥d5-+ 46.¥b5 ¢e4 47.¢e2 f4 48.¥d3+?? White crumbles inface of a dire situation

[ 48.¢f2 ¥e6 49.gxf4 ¢xf4-+ ] 48...¢e5 Diagram

[ ¹48...¢d4-+ nails it down ]

(Diagram)

49.¢f2?? the pressure is too much,White crumbles

[ ¹49.g4∓ ] 49...¢d4-+ 50.¥c2

[ 50.¥b5 there is nothing better inthe position fxg3+ 51.¢xg3-+ ]

50...fxg3+ 51.¢xg3 ¢e3 52.¢g4 ¥f3+

[ 52...¥e4 53.¥b3 f5+ 54.¢h5


XABCDEFGHY8-+-+-+-+(7+-+-+p+-'6-+-+-+-zp&5+-+lmk-+-%4-zp-+-zp-zP$3+-+L+-zP-#2-zP-+K+-+"1+-+-+-+-![xabcdefghy

f4-+ ] 53.¢f5 ¢d2 54.¥b3 ¥h5 55.¥d5?? solves nothing

[ 55.¢f6 ¢c1 56.¢g7 ¢xb2 57.¥d5-+ ]

55...¢c2-+ 56.b3 [ 56.¢f6 ¥e2 57.¢e5 ¢xb2 58.¢d4-+ ]

56...¢c3 57.¢f4 ¥g6 58.¥c4 [ 58.¢g3 doesn't change theoutcome of the game f6 59.¢g4

¥c2-+ ] 58...f6 59.¥e6

[ 59.¢g4-+ a last effort to resistthe inevitable ]

59...¥c2 60.¢g4 ¥xb3 61.¥f5 ¥d1+ 62.¢f4 b3 63.¥e6 b2 64.¥a2 ¥c2 65.¢g4 ¥g6 66.¢f4 ¢d4 67.h5 ¥c2

[ 67...¥c2 68.¥d5 ¢xd5 69.¢g3 b1£ 70.¢f2 ¥e4 71.¢e2 £a2+ 72.¢e1 ¥d3 73.¢d1 £f2 74.¢c1 £c2# ] [ 67...¥e4 68.¥g8 b1£ 69.¥h7 £f1+ 70.¢g4 £g2+ 71.¢h4 f5 72.¥xf5 £f2+ 73.¢g4 ¥xf5# ]

0-1

D71Yamada,Shinmei 1860Abe,Taisei 1458


D71: Fianchetto Grünfeld: 3 g3 d5sidelines and 5 cxd5 (without Nf3)

1.d4 ¤f6 2.c4 g6 3.¤c3 d5 4.cxd5 ¤xd5 5.g3 ¤xc3 6.bxc3 ¥g7 7.¥g2 c5 8.e3 0-0 9.¤e2DiagramXABCDEFGHY8rsnlwq-trk+({7zpp+-zppvlp'6-+-+-+p+&5+-zp-+-+-%4-+-zP-+-+$3+-zP-zP-zP-#2P+-+NzPLzP"1tR-vLQmK-+R!xabcdefghy

last book move £c7 10.0-0 ¦d8 11.£b3 ¤d7

[ 11...¤c6 12.¤f4= ] 12.¥b2

[ 12.¥a3 e5² ] 12...¦b8 13.¦ac1

[ 13.¤f4 ¤f6= ] 13...b6

[ 13...b5 14.¦fe1= ] 14.¦fd1 e6 Prevents intrusion ond5 15.c4 ¥b7

[ 15...cxd4 16.exd4 ( ‹16.¥xd4 e5 17.¥b2 ¤c5³ ) 16...¥b7 17.¤c3 ¥xg2 18.¢xg2= ]

16.¥xb7 [ 16.d5 ¥xb2 17.d6 £c8 18.£xb2 ¥xg2 19.¢xg2 a6² ]


16...£xb7= 17.d5 White gets morespace ¤f6

[ 17...exd5 18.¦xd5 ¤f6 19.¥xf6 ¥xf6 20.¤f4² ]

18.¥xf6 [ 18.¥e5!? ¦bc8 19.£b2± ]

18...¥xf6= 19.dxe6 fxe6 20.£c2 ¥e5 21.¤c3 ¥xc3 22.£xc3 £f3 23.¦d3 ¦xd3 24.£xd3 ¦f8 25.¦c2 £f6 26.¦d2 £e7 27.¢f1 ¢g7 28.£d6 £xd6 29.¦xd6A r o o k e n d g a m e o c c u r e d ¢f6

30.¦d7 ¦f7 31.¦xf7+ ¢xf7 32.f4 ¢f6 33.e4 e5 34.¢e2 g5

[ 34...¢e6 35.¢e3² ] 35.f5

[ 35.fxg5+ ¢xg5 36.h3 ¢f6+- ] 35...h5 36.a4 a5 37.h3 g4 38.¢e3

[ 38.h4 ¢e7± ] 38...¢g5

[ ¹38...gxh3!? would allow Blackto play on 39.¢f2 ¢g5= ]

39.¢f2 [ ¹39.h4+!? ¢f6 40.¢d3± ]

39...¢f6 Diagram

(Diagram)

½-½

XABCDEFGHY8-+-+-+-+(7+-+-+-+-'6-zp-+-mk-+&5zp-zp-zpP+p%4P+P+P+p+$3+-+-+-zPP#2-+-+-mK-+"1+-+-+-+-![xabcdefghy

C78Kobayashi,Katsuhiko 1501Sato,Yasuji 1429


C78: Ruy Lopez: Archangelsk andMöller Defences

1.e4 e5 2.¤f3 ¤c6 3.¥b5 a6 4.¥a4 ¤f6 5.0-0 ¥c5 6.¦e1Diagram

(Diagram)

last book move. White's piece can'tmove: c1 ¤g4 Black threatens tow i n m a t e r i a l : N g 4 x f 2 7.¦f1White's piece can't move: c1 0-0

8.¥xc6 bxc6 9.d4 [ ¹9.h3!? must definitely beconsidered ¤f6 10.¤xe5 ¤xe4

11.d4= ] 9...exd4∓ 10.¤xd4

[ 10.c3 dxc3 11.¤xc3 £e7∓ ] 10...¤e5

[ ¹10...d5!? 11.exd5 £xd5∓ ] 11.¥e3 ¥b6 12.¤c3 c5


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

[ 12...¦e8 13.h3= ] 13.¤b3 Diagram

[ 13.¤f3 ¤xf3+ 14.£xf3² ]

XABCDEFGHY8r+lwq-trk+({7+-zpp+pzpp'6pvl-+-+-+&5+-zp-sn-+-%4-+-+P+-+$3+NsN-vL-+-#2PzPP+-zPPzP"1tR-+Q+RmK-!xabcdefghy

13...c4 [ ¹13...d6= and Black is still in thegame ]

14.¥xb6+- cxb6 15.£d5 cxb3 [ 15...¤c6 16.¤d4+- ]

16.£xa8 bxc2 17.£d5 d6 18.£d2 f5 19.£xc2 f4

[ 19...b5 20.a4+- ] 20.£b3+ ¢h8 21.f3 £g5 22.¤d5

[ 22.£xb6 makes it even easierfor White ¤c4 23.£a7 ¤xb2+- ]

22...b5 23.¤b6 ¥b7 24.£a3 [ 24.£c3 £d8 25.£d4 ¦f6+- ]

24...¦d8? [ ¹24...£d8!? 25.¤d5 ¥xd5 26.exd5 £b6+ 27.¢h1 ¤c4+- ]

25.¦ad1+- ¦f8? [ 25...£e7 26.¦c1 g5+- ]

26.£xd6 ¦f7 [ 26...¢g8+- otherwise it'scurtains at once ]

27.£d8+ £xd8 28.¦xd8+ ¦f8 29.¦xf8#1-0

D20Masui,Hiraku 1287Koyahata,Taku 1429


D20: Queen's Gambit Accepted: 3e3 and 3 e4

1.d4 d5 2.c4 dxc4 3.e4 b5 4.¤c3 a6 Diagram

(Diagram)

last book move 5.b3 [ 5.¥e2 e6= ]

5...cxb3 [ 5...b4!? is an interestingalternative 6.¤d5 e6∓ ]

6.axb3= e6 Consolidates d5 [ ¹6...¥b7!?= is noteworthy ]

7.¥xb5+± ¥d7 8.¥xd7+ ¤xd7 9.d5

[ 9.¤ge2 ¥d6± ] 9...e5

[ 9...¤gf6 10.¤ge2 exd5 11.¤xd5 ¤xe4 12.0-0² ]

10.¥b2 ¥b4 The bishop likes it onb4 11.¤ge2 ¤c5


XABCDEFGHY8rsnlwqkvlntr(7+-zp-zppzpp'6p+-+-+-+&5+p+-+-+-%4-+pzPP+-+$3+-sN-+-+-#2PzP-+-zPPzP"1tR-vLQmKLsNR![xabcdefghy

[ 11...¤gf6!? must be considered 12.0-0 0-0² ]

12.0-0± ¤f6 13.f3 [ 13.¤a2 £b8 14.¤g3 ¤cd7 15.¤xb4 £xb4+- ]

13...£e7 Diagram [ ¹13...£b8² ]

XABCDEFGHY8r+-+k+-tr(7+-zp-wqpzpp'6p+-+-sn-+&5+-snPzp-+-%4-vl-+P+-+$3+PsN-+P+-#2-vL-+N+PzP"1tR-+Q+RmK-![xabcdefghy

14.¥a3?? White loses the upperhand

[ ¹14.¤a2 White has a promisingposition ¤cd7 15.¤xb4 £xb4

16.¥a3+- ] 14...¦b8

[ 14...¥xa3 15.d6 cxd6

16.¦xa3∓ ] 15.£c2 Diagram

[ ¹15.¥xb4 ¦xb4 16.¤a4 ¤xb3 17.¦b1² ]

XABCDEFGHY8-tr-+k+-tr({7+-zp-wqpzpp'6p+-+-sn-+&5+-snPzp-+-%4-vl-+P+-+$3vLPsN-+P+-#2-+Q+N+PzP"1tR-+-+RmK-!xabcdefghy

15...a5?? gives the opponent newchances

[ ¹15...¥xa3 16.¦xa3 ¤cxe4 17.¤xe4 £xa3 18.£c6+ ¢f8∓ ]

16.¥xb4± axb4 17.¤a4 ¤xa4 18.£c6+ White forks: a4+e8

[ 18.¦xa4 0-0± ] 18...£d7

[ 18...¤d7 19.¦xa4 £c5+ 20.¢h1 £xc6 21.dxc6² ]

19.£xa4± £xa4 20.¦xa4 [ 20.bxa4?! ¢e7= ]

20...¤d7 [ 20...¢e7!?± ]

21.¦c1+- ¦b7? [ 21...¢d8 22.¦a7 ¦c8 23.¦c4+- ]

22.¦c4?? there were better ways tokeep up the pressure

[ ¹22.¦a8+ and White wins ¦b8 23.¦xb8+ ¤xb8 24.¦xc7+- ]

22...¤b6 23.¦axb4 ¢d7 24.¦c3 ¦hb8

[ 24...¦a8 25.¦c2± ]


25.f4 f6 26.¦d3 [ 26.fxe5!? fxe5 27.¤c1 ¢e8+- ]

26...¢d6± 27.¦c3 ¦a8 [ 27...¢d7 28.fxe5 fxe5+- ]

28.¢f2+- ¦a2 29.fxe5+ ¢xe5??leading to a quick end

[ ¹29...fxe5 30.¦b5 ¢e7+- ] 30.¦c6 ¦b2

[ 30...¤xd5 the last chance forcounterplay 31.¦xb7 ¢xe4+- ]

31.¦e6#1-0

○○○○○○　第 10 回札幌サマーチェス大会　最終結果　○○○○○○

（注 1）組み合わせは，コンピュータで SwissManager 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）全参加者のうち上位 3 位までをオープンクラスとして表彰し，レイティング 4 〜 7 位を

A クラスとし，レイティング 8 〜 11 位を B クラスとして，表彰しました。

氏名 Rating 1R 2R 3R 4R 5R 順位

1 山田　真明 1860 B7 1 W4 1 W6 2 B2 2 W8 2.5 4

2 山田　明弘 1855 W81 B3 2 W42.5 W1 3.5 B5 4.5 1

3 西森　敏之 1765 B9 1 W2 1 B7 2 W6 3 B4 3.5 3

4 高安　信行 1532 W10 1 B1 2 B2 2.5 W5 3.5 W3 4 2 (A1 位 )

5 小林　秀彦 1523 bye 0.5 B6 1 W8 2 B4 2 W2 2 6 (A3 位 )

6 小林　勝彦 1501 B11 1 W5 1.5 B1 1.5 B3 1.5 W9 2.5 4 (A2 位 )

7 小屋畑　拓 1475 W1 0 B10 1 W3 1 B8 1.5 B11 1.5 8

8 阿部　大聖 1458 B2 0 W9 1 B5 1 W7 1.5 B1 2 6 (B1 位 )

9 佐藤　泰司 1429 W3 0 B8 0 bye 0.5W11 1.5 B6 1.5 8 (B2 位 )

10伊東　克英 1420 B4 0 W7 0 W11 1 - 1 - 1 11

11 舛井　　開 1287 W6 0 bye 0.5 B10 0.5 B9 0.5 W7 1.5 8 (B2 位 )

第 10 回札幌サマーチェス大会棋譜集

主　催：　札幌チェスクラブ日　時：　2013 年 8 月 17, 18 日Ｔ　Ｄ：　金丸知司（日本チェス協会 3 段，札幌チェスクラブ代表）場　所：　札幌市中央区北２条西７丁目　「かでる２７」ソフト：　組み合わせ　SwissManager　（小屋畑拓，西森敏之，山田明弘）　　　：　解析，印刷　Fritz11　（西森敏之）制　作：　札幌チェスクラブ（西森敏之）

棋 譜 集 · 2014-04-01 · fritz11 printout, toshiyuki nishimori, 2013/09/02 2 d43 koyahata,taku...

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棋譜集 · 2014-04-01 · fritz11 printout, toshiyuki nishimori, 2013/09/02 2 d43 koyahata,taku...