Computer Chess Club Archives




Subject: Double Nullmove

Author: Andreas Herrmann

Date: 23:54:03 04/24/02


I want to implement double nullmove in my chess engine again. Now i'm searching
for Zugzwang postions, which should be solved by double nullmove instead of
normal nullmove.
Another question: How much time costs the double null move in the average.
I have tested it in some positions, and my engine needs about 30 to 40 percent
more time for the same search depth. Is that normal or is that to much.

have a nice day

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