Author: Uri Blass
Date: 14:51:48 05/04/04
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On May 04, 2004 at 12:40:33, Marc Bourzutschky wrote: >On May 04, 2004 at 10:44:43, Tord Romstad wrote: > >>When there is little thinking time left, my engine annoyingly often fails to win >>KQKR endgames. Are there any simple but effective eval tricks which can help to >>play such endgames well without searching very deeply? >> >>Tord > >This ending is tough because it appears to be inherently tactical, so even with >good heuristics you'll need a minimum amount of look ahead to see whether a rook >separated from the king can be forked (check extensions!). On a 16x16 board >this ending is no longer a win for the queen, further supporting the idea that >there is probably no general strategy. > >-Marc In both cases it is dependent in the initial position. There are drawn positions because of perepetual check in 8*8 board when it is impossible to capture the rook because of stalemate and there are winning position for the queen in 16*16 board when it is possible to capture the rook by a fork. Uri
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