Author: Uri Blass
Date: 01:37:01 04/24/02
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On April 24, 2002 at 01:48:49, Russell Reagan wrote: >On April 24, 2002 at 00:20:59, Robert Hyatt wrote: > >>On April 23, 2002 at 22:35:02, david wight wrote: >> >>>does anyone know what was the longest chess game between chess computers and if >>>you know can you tell me where i my get a print out of it?thanks very much.dave. >> >> >>Crafty played at least one game that went beyond 500 moves. It played >>more than one that went way over 200 against a player "SKIPPER" (a human) >>on ICC. At one point winboard/xboard had a 500 ply (250 move) limit for >>the internal move list. Skipper blew that in a 3 0 game... (he was >>a human, remember, not a computer)... > >Do I understand this right? Skipper played more than 250 moves in less than 180 >seconds? That means the slowest average would be 0.72 seconds per move, and in >practical play he would have probably played faster than this to go OVER the 250 >move limit in LESS than 3 minutes. I guess that the reason is that ICC allows to move the mouse in the opponent time. I believe that he is going to have bigger problems to play 250 moves in less than 180 seconds if Crafty plays all the moves in 0.1 seconds but unfortunately crafty did not use this anti human trick. I suspect that this trick may be a good trick against humans in closed positions. It may be interesting to see what happens in 3 0 games if computers start to use this trick after 20 plies with no conversions against humans when they always care to do the game as long as possible by pushing a pawn or capturing in the 99 or the 100 ply(if the opponent is in big time trouble they should do it even if the price is losing a piece). This trick cannot work in games with increasments or for long time control but for 3 0 games I suspect that avoiding closed positions is not needed for beating humans. Uri
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