Author: Tord Romstad
Date: 07:48:23 11/21/05
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On November 21, 2005 at 10:42:43, Mike Hood wrote: >One side-effect of EGTB's is that computers have a tendency to make "non-human" >moves. This is especially apparent when using a full set of 4-piece EGTB's, with >no 5-piece EGTB's. I have witnessed KRNB-KP endgames where White exchanges its >rook for the pawn in order to get into a comfortable KNB-K tablebase with a mate >in 30 or more. Very few humans would take a risk like that. Even a very good >human player would manoeuvre his pieces carefully to capture the pawn without an >exchange, then use his rook as the main mating piece. Neither approach is wrong. You are right, in this case it doesn't matter. The problem is when the program is losing. It would prefer to be on the losing side of a KPPPPPK endgame rather than the losing side of a KNNKP endgame. There is no doubt that almost any human player would easily win the KPPPPPK endgame, while very few of us would win the KNNKP endgame. Tord
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