Author: Jon Dart
Date: 12:06:18 10/03/02
I have recently finished running a 20 game match between Arasan 6.0.1 and GnuChess 4.0 (the version that comes with Winboard). Time control was 40/40 on a 1.8GHz P4 Xeon system, with ponder off. Arasan had 64MB for hashtables, and also had access to 4 man tablebases, with 4MB for the tablebase cache. I ran gnuchess with "-T 2000000" for the hash table size. I'm not quite sure what the conversion to bytes is, but Gnu was using about 56MB total RAM. Games are available at http://www.arasanchess.org/gnumatch.zip. I was a little surprised at the result (+13 -3 =4 for Arasan), because GnuChess 4.0 is not bad at all and in the past has been a respectable opponent. I think one of the factors may have been tablebases - It looked like GnuChess was regularly outplayed in the endgame (the first match game is a good example). In round 18, Arasan saw mate in 37 at move 133. But I'm not sure it would have lost even without TBs - maybe Gnu would have some more draws, though. --Jon
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