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Subject: Re: Testing speed of "position visiting"

Author: Tom Kerrigan

Date: 02:42:16 04/23/00

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On April 23, 2000 at 05:39:56, Tom Kerrigan wrote:

>Here's Peter McKenzie's move generator test position:
>
>r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq -
>
>There are 193690690 possible 5-ply "games" starting from this position.
>
>How long does it take your program to visit all the positions of these games?
>
>It takes my program 178 seconds. I have a 400MHz Celeron. My code incrementally
>updates a 64-bit hash key, a 64-bit pawn hash key, and four material counters
>(white pieces, white pawns, black pieces, black pawns).

I forgot to mention that my program also saves a MVV/LVA "score" for every move
it generates.

-Tom



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