From: Reijer Grimbergen yz yamagata-u ac jp> Date: 04 sep 2006 Subject: This week in Shukan Shogi (no. 1158, August 2nd 2006) And here is the second game of the Oi match between Habu and Sato. Again won by Habu, even though he needed a little less magic than in the first game. Here is the game with comments: [Black "Habu Yoshiharu, Oi"] [White "Sato Yasumitsu, Challenger"] [Event "47th Oi-sen, Game 2"] [Date "July 27th and 28th 2006"] 1.P7g-7f 00:00:00 00:00:00 2.P3c-3d 00:00:00 00:01:00 3.P2g-2f 00:01:00 00:01:00 4.P4c-4d 00:01:00 00:01:00 5.P2f-2e 00:04:00 00:01:00 6.B2b-3c 00:04:00 00:01:00 7.S3i-4h 00:04:00 00:01:00 8.R8b-2b 00:04:00 00:01:00 9.K5i-6h 00:23:00 00:01:00 10.K5a-6b 00:23:00 00:01:00 11.K6h-7h 00:26:00 00:01:00 12.K6b-7b 00:26:00 00:01:00 13.G4i-5h 00:44:00 00:01:00 14.S3a-4b 00:44:00 00:03:00 15.P9g-9f 00:55:00 00:03:00 16.K7b-8b 00:55:00 00:15:00 17.P5g-5f 01:00:00 00:15:00 18.L9a-9b 01:00:00 00:38:00 The anaguma is a surprise, because Sato has been playing very positively, especially against Habu. The anaguma often leads to a waiting game, hoping for a mistake by the opponent and then winning in the counter attack with the stronger castle. However, Sato has thought of a positive way to play the anaguma with the furibisha side. 19.B8h-7g 01:08:00 00:38:00 20.K8b-9a 01:08:00 00:38:00 21.K7h-8h 01:08:00 00:38:00 22.S7a-8b 01:08:00 00:38:00 23.L9i-9h 01:26:00 00:38:00 24.G6a-7a 01:26:00 00:57:00 25.K8h-9i 01:26:00 00:57:00 26.P4d-4e!? 01:26:00 01:25:00 Offering the exchange of the bishop is against the general rule that the furibisha side should aim at exchanging rooks, while the ibisha side should aim at exchanging bishops. Sato has obviously prepared this at home and concluded that with the anaguma and opposing rook, there is no problem to exchange bishops. With a bishop in hand, there are all kinds of options to move forward. No waiting game by white in this game. 27.B7gx3c+ 01:51:00 01:25:00 Of course, Habu doesn't back off. 28.N2ax3c 01:51:00 01:29:00 29.S7i-8h 01:51:00 01:29:00 30.P9c-9d 01:51:00 01:45:00 31.S4h-5g 01:52:00 01:45:00 32.S4b-4c 01:52:00 02:04:00 33.P3g-3f 02:04:00 02:04:00 34.G4a-5b 02:04:00 02:05:00 35.S5g-6f 02:08:00 02:05:00 36.R2b-2a 02:08:00 02:16:00 37.G6i-7i 02:20:00 02:16:00 38.P6c-6d 02:20:00 02:39:00 39.P5f-5e 03:14:00 02:39:00 40.P6d-6e!? 03:14:00 03:28:00 This doesn't look like a pawn sacrifice, but like giving a pawn for free. Everybody in the press room expected Habu to take this pawn quickly, but that is not what happened. He took 58 minutes in this position and then sealed the move. Chief arbiter Katsuura (9-dan) expressed the thoughts of everyone: "I know what move is in the envelope: there can't be anything else than Sx6e". 41.S6f-5g 04:12:00 03:28:00 Habu made Katsuura eat his words, but things are not so simple. After 41.Sx6e 42.R6a the professionals in the press room thought that black had a good position after 43.N7g, but Habu said that he was very worried about weakening the anaguma like this and was not confident that his position was good after N7g. Sato seemed to agree, as both players had mainly thought about retreating with 43.S5f after R6a. Then 44.B*3a R2f B8d+ P2d Px2d Rx2d +B7d G5g +Bx5f Gx5g R6g+ B*7h +Rx4g threatens (among other things) P*6g and seems good for white. This is the reason why Habu didn't take the pawn on 6e. 42.G5b-4b 04:12:00 04:29:00 43.G5h-6h 04:34:00 04:29:00 44.S4c-4d 04:34:00 04:31:00 45.S5g-5f 04:45:00 04:31:00 46.P6e-6f 04:45:00 04:34:00 47.B*7g 04:50:00 04:34:00 48.P2c-2d 04:50:00 05:10:00 49.B7gx6f 05:51:00 05:10:00 50.P2dx2e 05:51:00 05:12:00 51.P5e-5d 05:51:00 05:12:00 52.G4b-4c 05:51:00 05:12:00 53.S5f-5e 05:51:00 05:12:00 54.S4dx5e 05:51:00 05:15:00 55.B6fx5e 05:52:00 05:15:00 56.P5cx5d? 05:52:00 06:07:00 Obvious move against the threat Px5c+ Gx5c Bx3c+, but an important mistake. As Sato pointed out after the game, 56.B*2d was correct. This defends the knight on 3c and also attacks the anaguma. For example, 57.B7g Gx5d P3e P4f Px4f R4a Px3d Bx4f R4h P*4g Rx4g Rx4e and the position is unclear. Bx6h+ is a strong threat which is probably best resolved by Rx4f Rx4f, but when white gets a rook in hand black can get into serious trouble, especially if white can prolong the game. The shape of G5d-P5c is usually bad, but in this case very effective against bishops attacking the anaguma (squares 4d and 5c are the focal points if the white pawn is on 5d instead of 5c). 57.B5e-6f 05:57:00 06:07:00 58.B*6d 05:57:00 06:12:00 59.R2h-1h 06:05:00 06:12:00 60.G4c-4b 06:05:00 06:17:00 61.P3f-3e 06:09:00 06:17:00 62.R2a-2d 06:09:00 06:18:00 63.S*4d 06:24:00 06:18:00 Sato underestimated the strength of this move. Black has a clear advantage now. 64.P*6e 06:24:00 06:45:00 65.B6f-7g 06:28:00 06:45:00 66.S*5e 06:28:00 07:02:00 67.S4dx5e 06:36:00 07:02:00 68.P5dx5e 06:36:00 07:02:00 69.S*5d 06:37:00 07:02:00 70.S*7d 06:37:00 07:15:00 71.P6g-6f 06:42:00 07:15:00 72.P6ex6f 06:42:00 07:26:00 73.P*6e 06:44:00 07:26:00 74.P3dx3e 06:44:00 07:30:00 75.P6ex6d 07:05:00 07:30:00 76.R2dx5d 07:05:00 07:30:00 77.P7f-7e 07:05:00 07:30:00 78.S7d-6e 07:05:00 07:32:00 79.P6d-6c+ 07:05:00 07:32:00 80.P5e-5f 07:05:00 07:33:00 81.B*2a 07:16:00 07:33:00 82.S*3b 07:16:00 07:36:00 83.B2ax3b+ 07:16:00 07:36:00 84.G4bx3b 07:16:00 07:36:00 85.S*7b 07:16:00 07:36:00 86.G7ax7b 07:16:00 07:51:00 87.+P6cx7b 07:16:00 07:51:00 88.B*4d 07:16:00 07:51:00 89.P7e-7d! 07:25:00 07:51:00 The decisive move. The black bishop that was passively waiting on 7g, now enters into the attack, which becomes unstoppable. Strong castle and unstoppable attack, the game is over. 90.P7cx7d 07:25:00 07:58:00 91.B7g-8f 07:28:00 07:58:00 92.P7d-7e 07:28:00 07:58:00 93.B8fx7e 07:35:00 07:58:00 94.R5d-7d 07:35:00 07:58:00 95.+P7bx8b 07:35:00 07:58:00 96.K9ax8b 07:35:00 07:58:00 97.G*8e 07:35:00 07:58:00 98.R7d-7a 07:35:00 07:58:00 99.S*5c 07:36:00 07:58:00 100.P5f-5g+ 07:36:00 07:59:00 101.G6hx5g 07:39:00 07:59:00 102.P*7h 07:39:00 07:59:00 103.G7ix7h 07:42:00 07:59:00 104.P*5f 07:42:00 07:59:00 105.S5cx4d= 07:42:00 07:59:00 106.P5fx5g+ 07:42:00 07:59:00 107.B7e-5c+ 07:42:00 07:59:00 108.P6f-6g+ 07:42:00 07:59:00 109.+B5cx7a 07:42:00 07:59:00 110.K8bx7a 07:42:00 07:59:00 111.R*5b 07:42:00 07:59:00 Resigns 07:42:00 07:59:00 Sato has been unable to find a place to resign. Black threatens mate with B*5c and if G*7b then the simple Rx3b+ is winning. On the other hand, even if white plays +Px7h then after Rx7h black is still absolutely safe. Sato again showed positive play in this game, but after the opening he was outplayed by Habu who takes a 2-0 lead. Sato now must win the next game to keep this match interesting. -- Reijer Grimbergen Department of Informatics, Yamagata University Jonan 4-3-16, Yonezawa, 992-8510 Japan Tel: +81-(0)238-26-3740 FAX: +81-(0)238-26-3299 http://gamelab.yz.yamagata-u.ac.jp/ --^---------------------------------------------------------------- This email was sent to: shogi-l shogi net EASY UNSUBSCRIBE click here: http://topica.com/u/?a2i6Ys.bnuqMa.c2hvZ2kt Or send an email to: shogi-unsubscribe topica com For Topica's complete suite of email marketing solutions visit: http://www.topica.com/?p=TEXFOOTER --^----------------------------------------------------------------