Author: blass uri
Date: 10:28:24 07/26/00
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On July 26, 2000 at 12:44:56, Jonathan Lee wrote: >Here's the position: >White pawns on a5, b2, and c4 >White rook c7, White king d4 >Black rook e2, Black king a6 >White to move: >For the first 11 or 12 half moves, the computer moves pawn b2-b4, but that's a >stalemate. >This is an example of inefficiency (relatively speaking). >This position was given to me by Master Mark Ryan (not Mark Ryan on this CCC at >Vancouver, Canada). >Does anybody have a chess engine that can make this position run much faster >(disregarding hardware)? >Jonathan (49th message) Hiarcs6 can reject b4 in 9 plies(it does not see the draw but there is a score drop at depth 9 and it changes its mind). Hiarcs7.32 needs 11 plies to see the draw at depth 11 and there is no score drop in previous plies. Uri
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