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Subject: Re: Endgame Trap

Author: Oliver Roese

Date: 12:41:45 07/17/02

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On July 16, 2002 at 15:03:48, Gian-Carlo Pascutto wrote:

>From a game Sjeng-Hiarcs
>
>[D]8/8/6b1/1k6/p2K4/P7/1P6/8 b - - 0 71
>
>My engine statically says this is a draw (bishop + wrong pawn).
>
>In reality, black mates in 23 or less.
>
>Makes my search go bonkers (and for some other programs as well)
>
>Sjeng 12.14 Maastricht - Hiarcs 7.32
>8/8/6b1/1k6/p2K4/P7/1P6/8 b - - 0 1
>
...
>71...Bf7 72.Kc3 Kc5 73.Kd3 Kd5 74.Kc3 Ke4 75.b3 axb3
>  -+  (-#23)   Depth: 20/38   00:00:06  4793kN, tb=113744
>

This topic is a strong candidate for the CCC-FAQ (which is unknown
to exist currently however). Just kidding :)

The point in positions of this kind is:
Can the defender reach the corner?
If so the game is a draw immedeatly.
If not he is doomed to loose.

Oliver



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