Computer Chess Club Archives




Subject: Explosion in WAC 102

Author: David Rasmussen

Date: 08:44:39 01/11/02

[D]2Q2n2/2R4p/1p1qpp1k/8/3P3P/3B2P1/5PK1/r7 w - - 0 1

In the above position, my search tree explodes because of extensions. It takes >
3 minutes and 42 million nodes to finish an 8 ply search. How does your program

Any good ideas on how to limit extensions in such a position.

P.S. Solving the position is no problem. It is a simple mate in 5 plies, and is
found very early on at depth 1 or 2 or so. Still, there must be something
unsound about my extensions, or at least room for improvement, when this
position makes the tree explode.


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Last modified: Thu, 07 Jul 11 08:48:38 -0700

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