Author: Robert Hyatt
Date: 13:02:56 01/22/01
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On January 22, 2001 at 14:55:49, Peter Berger wrote: >A tough position it seems . > >Although none of them is "mine" , a try : > >"Bringer" > >0:00:00.1 ( 4/12) 3891 4.87 f6-e6 d7-f7 f5-f6 >0:00:00.2 ( 5/13) 17765 4.83 f6-e6 d7-f7 h2-h4 a5-a4 e6xf7 g8xf7 >e5-e6 f7-e7 h4-h5 >0:00:00.5 ( 6/15) 58783 4.72 f6-e6 d7-f7 h2-h4 a5-a4 e6xf7 g8xf7 >e5-e6 f7-e7 >0:00:00.7 ( 6/16) 86563 4.73 f6-g6 >0:00:01.9 ( 7/18) 212939 4.72 f6-g6 g8-f8 g6-h6 f8-g8 h6-e6 >0:00:05.1 ( 8/23) 645145 4.74 f6-g6 g8-f8 g6-h6 f8-g8 h6-e6 >0:00:13.4 ( 9/27) 1869222 4.61 f6-g6 g8-f8 g6-h6 f8-g8 h6-e6 >0:00:17.1 ( 9/27) 2428949 4.63 f6-e6 d7xe6 f5xe6 g8-f8 >0:00:29.8 (10/30) 4346163 4.23 f6-e6 d7xe6 >0:00:30.8 (10/30) 4559520 3.83 f6-e6 d7xe6 >0:00:32.7 (10/30) 4871934 1.97 f6-e6 d7xe6 f5xe6 g8-f8 d5-d6 c7xd6 >e5xd6 a5-a4 h1-g1 b4-b3 a2xb3 a4-a3 d6-d7 >0:00:41.8 (10/30) 6179798 1.98 f6-g6 >0:00:42.7 (10/30) 6346445 2.48 f6-g6 >0:01:34.8 (10/36) 13206630 2.49 e5-e6 >0:01:44.8 (10/36) 14944128 2.99 e5-e6 >0:02:03.3 (10/36) 17506577 3.00 f6-g5 >0:02:28.9 (10/36) 21440299 3.35 f6-g5 g8-f8 d5-d6 >0:03:57.7 (11/36) 34278234 3.26 f6-g5 g8-f8 d5-d6 > >So , Bringer might be lucky and avoid it at fast blitz time control but needs 43 >secs to avoid it for the right reasons it seems . > >In fact this position is a hard challenge for the commercials, too : > >"Century 3" > >00:00:24 11.00 10.63 1.De6+ Dxe6 2.fxe6 Kf8 3.d6 cxd6 > 4.exd6 a4 5.d5 a3 6.d7 Ke7 7.h4 > b3 8.d6 Kd8 (23) (0.00) > >00:00:50 12.00 8.02 1.De6+ Dxe6 2.fxe6 Kf8 3.d6 cxd6 > 4.exd6 a4 5.d5 a3 6.d7 Ke7 7.h3 > b3 8.d6 Kxe6 9.d8 (32) (0.00) > >00:03:00 13.00 0.44 1.De6+ Dxe6 2.fxe6 Kf8 3.Kg2 a4 > 4.d6 (159) (0.00) > >No news after 15 minutes , so probably Rebel can't avoid it at tournament time >control . > >Both tried on PIII500 . > >pete The problem is endgame knowledge. A program _ought_ to know that if you have a passer, then trade pieces to reach a won ending. Only in this case, that heuristic back-fires as it is black who ends up winning. This is a _tough_ exception to handle... although a GM would tell you instantly "No I won't trade queens..." And no, there is no point in starting another "is the computer a GM?" thread. So long as they can fall for these positions, the answer is pretty obvious.
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