Author: Robert Hyatt
Date: 07:07:27 05/13/01
Go up one level in this thread
On May 13, 2001 at 03:50:15, Gian-Carlo Pascutto wrote: >...when it could happen to you. > >On ICC my program reached the following position: > >[D]2k2r2/2P3R1/1P6/P7/8/1K6/8/8 w - - 0 56 > >Convinced it was winning, it now played a6?? >after which black draws easily. > >I remember having seen this theme before in problems, >but not in a real game. Ouch! > >Most other programs don't seem to have a clue about >this position either, though :) > >-- >GCP It's a null-move killer because it is based on zugzwang problems. White is up material + whatever bonuses it gets for three connected passers, which is quite a bit normally. Which means that any null move done will think white is simply winning. The sequence of checks to reach the draw is also quite long which aggravates things...
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