Author: José Carlos
Date: 15:46:33 04/27/04
Go up one level in this thread
On April 27, 2004 at 18:42:03, José Carlos wrote: >On April 27, 2004 at 15:06:29, Gerd Isenberg wrote: > >>On April 27, 2004 at 03:33:26, Bas Hamstra wrote: >> >>>About double nullmove: I tested this in some pawnendgames to see if it could >>>handle zuzwang problems, but I don't see it perform any better than normal >>>nullmove. Can Vincent or you post a position where double null outperforms >>>normal null? I agree the idea is elegant, but I just don't see it work. >>> >>>Bas. >> >> >>Hi Bas, >> >>i don't use double nullmove, but a verification search with same R, if nullmove >>fails high. Some of my favorite zugzwang positions: >> >>CTT4-11 Crafty-IsiChess: >>[D] 8/8/1p1r1k2/p1pPN1p1/P3KnP1/1P6/8/3R4 b - - ; bm Nxd5 > > I recall this position from past discussions here. It's really interesting. >Going one step further shows clearly a big hole in my search. In this position: >[D]8/8/1p1r1k2/p1pPN1p1/P3KnP1/1P6/8/3R4 b - - Sorry, I meant the position after Nxd5. José C.
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