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Subject: Re: Gestatten: Alice

Author: Sven Reichard

Date: 04:24:11 06/24/02

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On June 24, 2002 at 05:29:24, Daniel Clausen wrote:

>The first thing I've added to my engine about pawns was: if you're in endgame,
>move pawns. This way the engine at least tries to promote them instead of moving
>its king around and don't make any progress, although it has one rook more than
>the opponent.

Yesterday I taught it to avoid doubled pawns. Before that it would usually end
up with 3 isolated doubled pawns after 15 moves. :)

>You'd be surprised how many games your engine can win on chess servers w/o
>knowing anything about pawn structure. :) [humans make _a lot_ of tactical
>mistakes - most of them are just 2 ply searches :)] I think you can easily get
>around 2100 w/ a half-decent search and PSQ-tables and "2 12" as time control.
>(w/ 5 0 you should do even better, at least if your engine is automated :)


I do something equivalent to PSQ, just slower. The search still is slow (takes
about 5-10 sec to get to depth 7 in the middle game, no extensions, sometimes a
lot longer).

I still have to find an adequate opponent... I'm too weak, and GnuChess or
Crafty are too strong.

>
>Sargon
Sven.

PS Thanks all for the encouragement!



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