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Subject: What is the reason that crafty needs 10 plies to find Nf5

Author: blass uri

Date: 10:29:11 04/29/00


This position is from the game insomniac0.63-chessmaster6000

[D]6k1/pp2nppp/7r/8/3q4/1P1p1P2/P2P1RP1/RQB3K1 b - - 0 1

Crafty17.10 needs 10 plies to find Nf5 and likes Qh4 with a draw evaluation at
depth 9 when after Nf5 it needs only 5 plies to see that white is losing.

I know that crafty is a null mover but I thought that null movers do not prune
more than 3 plies.

Uri



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