From: Reijer Grimbergen yz yamagata-u ac jp> Date: 28 oct 2005 Subject: This week in Shukan Shogi (no. 1113, September 14th 2005) Your free subscription is supported by today's sponsor: ------------------------------------------------------------------- Take our Nationwide Ice Cream Survey today! Receive a FREE* $100=20 Restaurant Gift Card of your choice or $100 worth of Ben &=20 Jerry=92s=AE or H=E4agen-Dazs=AE ice cream for participating! http://click.topica.com/= caad3P6a2i6YsbnuqMaa/Ice Cream Research Survey ------------------------------------------------------------------- In this report the 5th game of the Oi match between Habu and Sato. Sato,= =20 who had lost two games in a row managed to take back the initiative in=20 this match by winning an interesting game. Here is the game with comments: [Black "Sato Yasumitsu, Challenger"] [White "Habu Yoshiharu, Oi"] [Event "46th Oi-sen, Game 5"] [Date "September 5th and 6th 2005"] 1.P7g-7f 00:00:00 00:00:00 2.P8c-8d 00:00:00 00:03:00 3.S7i-6h 00:00:00 00:03:00 4.P3c-3d 00:00:00 00:04:00 5.S6h-7g 00:00:00 00:04:00 6.S7a-6b 00:00:00 00:06:00 7.P5g-5f 00:00:00 00:06:00 8.P5c-5d 00:00:00 00:14:00 9.S3i-4h 00:00:00 00:14:00 10.G6a-5b 00:00:00 00:27:00 11.B8h-7i 00:11:00 00:27:00 12.S3a-3b 00:11:00 00:29:00 13.P3g-3f 00:14:00 00:29:00 14.K5a-4b 00:14:00 00:57:00 15.P2g-2f 00:43:00 00:57:00 16.S6b-5c 00:43:00 01:20:00 17.P2f-2e 00:43:00 01:20:00 18.K4b-3a 00:43:00 01:21:00 19.G6i-7h 01:00:00 01:21:00 20.P6c-6d 01:00:00 01:41:00 21.P2e-2d 02:14:00 01:41:00 22.P2cx2d 02:14:00 01:41:00 23.B7ix2d 02:14:00 01:41:00 24.P*2c 02:14:00 01:41:00 25.B2d-6h 02:14:00 01:41:00 26.S5c-4d 02:14:00 02:45:00 27.N2i-3g 02:52:00 02:45:00 28.P5d-5e 02:52:00 03:05:00 29.P5fx5e 02:54:00 03:05:00 30.G5b-4b 02:54:00 03:07:00 31.K5i-6i 03:06:00 03:07:00 32.R8b-5b 03:06:00 04:17:00 33.P1g-1f 03:36:00 04:17:00 34.P6d-6e 03:36:00 04:34:00 35.G4i-5h 04:16:00 04:34:00 36.S4dx5e 04:16:00 05:01:00 This game started as a Yagura opening, but Habu has tried a new build-up= =20 and at first glance, white seems to be doing pretty good. 36.Sx5e=20 threatens P*5f followed by P6f and black will be overwhelmed in the center.= 37.P*5f! 04:17:00 05:01:00 This move in itself is too simple for praise, but as part of a hard to=20 find plan that completely surprised Habu it is definitely worth an=20 exclamation mark. 38.S5e-4d 04:17:00 05:02:00 Of course 38.Sx5f fails to P*5g, so this is the only move. 39.P4g-4f! 05:07:00 05:02:00 Part two of Sato's plan: a pawn sacrifice. 40.R5bx5f 05:07:00 05:12:00 41.P4f-4e 05:10:00 05:12:00 42.S4d-5c 05:10:00 05:21:00 43.P1f-1e! 05:10:00 05:21:00 This is what Sato had in mind all the time. The white king is well=20 protected on the left side, but the edge is weak. Too weak, as Habu=20 admitted after the game. 44.P7c-7d 05:10:00 05:26:00 45.P1e-1d 05:27:00 05:26:00 46.P1cx1d 05:27:00 05:30:00 47.P*1c 05:27:00 05:30:00 48.B2bx1c 05:27:00 05:47:00 49.B6hx1c+ 05:29:00 05:47:00 50.L1ax1c 05:29:00 05:47:00 51.N3g-2e 05:49:00 05:47:00 52.P7d-7e 05:49:00 05:54:00 The edge attack is very strong and black has the advantage. However,=20 Habu doesn't give up so easily and is trying to build up a counter attack. 53.S4h-4g 06:06:00 05:54:00 54.B*3g 06:06:00 06:07:00 55.R2h-2i 06:32:00 06:07:00 56.P*5g 06:32:00 06:19:00 57.G5h-6h? 06:46:00 06:19:00 White's attack seems pretty strong, but Sato could have made it easier=20 upon himself here with 57.Sx5f Px5h+ Kx5h P*5g Kx5g G*4f K6h Gx5f K7i=20 Px7f Sx7f B5e+ P*1e and black has a big advantage. 57.G5h-6h is based on= =20 an oversight in a very deep analysis by Sato that actually appears on=20 the board. 58.R5f-5d 06:46:00 06:32:00 59.N2ex1c+ 06:47:00 06:32:00 60.N2ax1c 06:47:00 06:32:00 61.L1ix1d 06:47:00 06:32:00 62.P*1b 06:47:00 06:33:00 63.L1dx1c+ 06:47:00 06:33:00 64.P1bx1c 06:47:00 06:33:00 65.P*1d 06:47:00 06:33:00 66.P1cx1d 06:47:00 06:45:00 67.L*5f 06:48:00 06:45:00 68.B3g-4h+ 06:48:00 06:49:00 69.B*1c 06:49:00 06:49:00 70.L*2b 06:49:00 07:13:00 71.B1c-4f+ 06:51:00 07:13:00 In his analysis at the 57th move, Sato thought that he had a huge, maybe= =20 winning advantage here. He had not analyzed deep enough. It is unclear=20 when he saw Habu's next move, but it must have been an unpleasant surprise.= 72.N*5e! 06:51:00 07:14:00 The promoted bishop on 4f must defend the silver on 4g or there is a=20 fork on king and rook. This was Sato's blind spot. He is a bit lucky=20 that this oversight doesn't change much. Black is still ahead. 73.L5fx5e 07:04:00 07:14:00 74.R5dx5e 07:04:00 07:14:00 75.R2i-2h 07:07:00 07:14:00 76.+B4hx4g 07:07:00 07:18:00 77.+B4fx4g 07:07:00 07:18:00 78.L*5d 07:07:00 07:18:00 79.K6i-7i! 07:15:00 07:18:00 This early king escape slows down the white attack considerably. 80.P7ex7f 07:15:00 07:18:00 81.S7gx7f 07:15:00 07:18:00 82.P5g-5h+ 07:15:00 07:18:00 83.G6hx5h 07:17:00 07:18:00 84.P*7g 07:17:00 07:19:00 85.N8ix7g 07:17:00 07:19:00 86.R5ex5h+ 07:17:00 07:20:00 87.+B4gx5h 07:19:00 07:20:00 88.L5dx5h+ 07:19:00 07:20:00 89.R2hx5h 07:19:00 07:20:00 90.B*4f 07:19:00 07:20:00 91.B*6h 07:21:00 07:20:00 92.B4fx6h+ 07:21:00 07:32:00 93.G7hx6h 07:22:00 07:32:00 94.P*5g 07:22:00 07:32:00 95.R5hx5g 07:25:00 07:32:00 96.P*7e 07:25:00 07:36:00 97.N*1c 07:26:00 07:36:00 98.G*1a 07:26:00 07:37:00 Takeichi (6-dan) commented that even though this defends against R*1a,=20 only few professionals would play this move. Freely dropping the gold=20 here is almost certain to kill the white attack. Takeichi said he would=20 definitely have played something like G4b-5b here to open an escape=20 route for the king. It is a token of Habu's burning desire to win that=20 he plays the move that causes his opponent the most headaches rather=20 than the most natural move. 99.N7gx6e 07:29:00 07:37:00 100.P*5b 07:29:00 07:37:00 101.N6ex5c+ 07:33:00 07:37:00 102.P5bx5c 07:33:00 07:37:00 103.P*1b 07:37:00 07:37:00 104.G1ax1b 07:37:00 07:37:00 105.N*2e 07:37:00 07:37:00 106.S*7g! 07:37:00 07:39:00 A little piece of Habu magic. 106.Gx7f Px7f and the white attack=20 suddenly gains speed again. 107.L*3c! 07:40:00 07:39:00 Well judged. Because of the mating threat (R*2a), white can't ignore this. 108.G4bx3c 07:40:00 07:40:00 109.N2ex3c+ 07:41:00 07:40:00 110.B*8h 07:41:00 07:40:00 111.K7i-8i 07:41:00 07:40:00 112.S7g-7h+ 07:41:00 07:41:00 113.K8ix7h 07:45:00 07:41:00 114.B8hx3c+ 07:45:00 07:41:00 115.S7fx7e? 07:50:00 07:41:00 A mistake. Correct was 115.B*6f +Bx6f Px6f and the sideways working of=20 the rook makes it impossible to get to the black king. Again, Sato is=20 lucky that this mistake has no direct influence on the outcome of the=20 game. He just needs to be a little more careful. 116.P*7g 07:50:00 07:47:00 117.K7h-6i 07:50:00 07:47:00 118.L*5e 07:50:00 07:47:00 119.R5g-2g 07:51:00 07:47:00 120.N*6e 07:51:00 07:47:00 121.P6g-6f! 07:53:00 07:47:00 Coolly played. Now black is able to hold off the white attack. 122.N*7f 07:53:00 07:51:00 123.P6fx6e 07:53:00 07:51:00 124.+B3c-1e 07:53:00 07:51:00 125.P*2f 07:58:00 07:51:00 126.+B1e-2d 07:58:00 07:51:00 127.G6h-6g 07:58:00 07:51:00 128.G1bx1c 07:58:00 07:51:00 129.G6gx7f 07:58:00 07:51:00 130.L5e-5g+ 07:58:00 07:53:00 131.N*3e 07:58:00 07:53:00 132.N*4g 07:58:00 07:53:00 133.S*6h 07:59:00 07:53:00 Resigns 07:59:00 07:53:00 This ends the white attack, for example 133.+Lx6h Kx6h and there is no=20 continuation. White has also no proper defense, so Habu resigned here.=20 Sato seemed to be in trouble after losing two games in a row, but this=20 game he showed he has not completely lost the form that brought him to=20 three title matches with Habu. He needs only one more win from two games= =20 to take the Oi title from Habu. --=20 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/ Your free subscription is supported by today's sponsor: ------------------------------------------------------------------- So Much Television, Such Little Time! In Love with Lost(TM) or=20 Devoted to Desperate Housewives(TM)? 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