Author: John Merlino
Date: 18:24:29 02/11/04
Go up one level in this thread
On February 11, 2004 at 20:40:17, scott farrell wrote: >this is from a game on ICC crafty vs chompsterx > >I think Robert is using his cct6 quad opteron, and chompster wins due to a >blunder by crafty. > >in this position crafty plays rxh3, will a huge scores favouring black (crafty >v19.3 analysis), and when white plays Rh2 it then changes the score to like +4 >for white, a swing of about a queen. > >It took crafty 2:40 (2 mins 40 secs) and 17 ply to see the fail low (on a dual >PIII 1.26 v19.3). > >[d] 8/7p/8/4pp1k/8/r6P/P5R1/6K1 b - - 0 41 Strange. Chessmaster 9000, SKR personality on a P4-2.4, sees that White is won in one second after 41...Rxh3: Time Depth Score Positions Moves 0:00 1/8 2.10 35952 42.Rh2 Rxh2 43.Kxh2 Kg4 44.a4 e4 45.a5 f4 46.a6 e3 47.Kg2 f3+ 48.Kf1 0:00 2/9 2.10 42161 42.Rh2 Rxh2 43.Kxh2 Kg4 44.a4 e4 45.a5 f4 46.a6 e3 47.Kg1 f3 48.Kf1 0:00 3/10 2.22 59716 42.Rh2 Rxh2 43.Kxh2 Kg4 44.a4 e4 45.a5 f4 46.a6 e3 47.Kg2 f3+ 48.Kf1 Kf4 49.a7 0:00 4/11 1.81 81745 42.Rh2 Rxh2 43.Kxh2 Kg4 44.a4 e4 45.a5 f4 46.Kg2 e3 47.Kf1 Kf3 48.Ke1 e2 49.a6 0:00 5/12 1.87 146503 42.Rh2 Rxh2 43.Kxh2 Kg4 44.a4 e4 45.a5 f4 46.Kg2 e3 47.Kf1 Kf3 48.a6 e2+ 49.Ke1 Ke3 50.a7 0:01 6/13 4.11 670607 42.Rh2 Rxh2 43.Kxh2 Kg4 44.a4 e4 45.a5 f4 46.Kg2 e3 47.a6 f3+ 48.Kf1 Kg3 49.a7 e2+ 50.Ke1 h5 51.a8=Q 0:03 7/14 4.36 1115281 42.Rh2 Rxh2 43.Kxh2 e4 44.a4 f4 45.a5 f3 46.Kg3 Kg5 47.a6 h5 48.a7 h4+ 49.Kf2 Kf4 50.a8=Q e3+ 51.Kf1 e2+ 52.Kf2 0:04 8/15 4.56 1758374 42.Rh2 Rxh2 43.Kxh2 e4 44.a4 f4 45.a5 f3 46.Kg3 Kg5 47.a6 h5 48.a7 h4+ 49.Kf2 Kf4 50.a8=Q e3+ 51.Kf1 h3 52.Qb8+ Ke4 53.Qb5 0:07 9/16 4.73 2897015 42.Rh2 Rxh2 43.Kxh2 e4 44.a4 f4 45.a5 Kg4 46.Kg2 e3 47.a6 f3+ 48.Kf1 Kg3 49.a7 e2+ 50.Ke1 h5 51.a8=Q h4 52.Qg8+ Kh3 53.Qg1 0:12 10/17 4.93 4833289 42.Rh2 Rxh2 43.Kxh2 e4 44.a4 f4 45.a5 Kg4 46.Kg2 e3 47.a6 f3+ 48.Kf1 Kg3 49.a7 e2+ 50.Ke1 h5 51.a8=Q h4 52.Qb8+ Kg4 53.Qe5 h3 54.Kf2 0:21 11/18 4.93 8076848 42.Rh2 Rxh2 43.Kxh2 e4 44.a4 f4 45.a5 Kg4 46.Kg2 e3 47.a6 f3+ 48.Kf1 Kg3 49.a7 e2+ 50.Ke1 h5 51.a8=Q h4 52.Qb8+ Kg4 53.Qe5 h3 54.Kf2 0:43 12/19 6.08 15868559 42.Rh2 Rxh2 43.Kxh2 e4 44.a4 f4 45.a5 Kg4 46.Kg2 e3 47.a6 f3+ 48.Kf1 Kg3 49.a7 e2+ 50.Ke1 h5 51.a8=Q h4 52.Qb8+ Kg4 53.Qe5 h3 54.Kf2 e1=Q+ 55.Qxe1 h2 My first suspicion was that this might be a bug in the 6-man tablebase code or data. But that would imply that the KPPPKP file was being used, and I don't think it has even been built yet. :-/ jm
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