Author: Colin Frayn
Date: 02:23:42 08/13/00
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On August 13, 2000 at 05:17:29, Colin Frayn wrote: >Take this position for example; > >[D]4Q3/2p3p1/7p/p1k1B3/2p1P2P/2P3P1/1r2q3/6K1 w - - > >which ColChess searches *fully* to depth 13 ply in just over 3 seconds on my >p3-450. It is a mate in 9. Crafty sees the mate quite early because of its >advanced extensions, but after 30 seconds had still only just reached 11 ply in >its search. There are probably better examples where Crafty can't see the mate, >and I unfortunately can't remember the board setup before this position, which I >know to be one of them. OK I found the game. This is one position. Unfortunately Crafty again sees the mate using its impressive extension code, but ColChess manages to search 18 full ply *completely* plus seeing the mate immediately at 19 ply in 46.7 seconds. After this time, Crafty has just started searching the 13th ply. See how Faile does. [D]6Q1/2p3p1/5k1p/p3n3/2pBP2P/2P3P1/1r2q3/6K1 w - - Qf8+ is mate in 12. Cheers, Col
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