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Subject: Re: automated book generation in chess/checkers

Author: Dann Corbit

Date: 15:44:10 12/12/01

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On December 12, 2001 at 18:31:14, martin fierz wrote:
[snip]
>[D] 3q1rk1/pp1bppbp/3p1np1/8/2rNP1P1/2N1BP2/PPPQ4/2KR3R w - - 0 16
>
>this was our starting position. i had hoped that in a sharp position as this,
>dropout expansion would also work for chess. it didnt :-(
>the problem was that crafty's main line went like 16. Qh2? h5? etc. the correct
>answer to 16. Qh2? is Rxc3! which every dragon player will play in a slpit
>second. the problem is that even if you can take the queens off with white now,
>your position is bad. there have been too many discussions here about
>"understanding", and i don't really want to say anything about it to avoid
>further discussion.

How long did you let crafty run?  Did you try other engines?

Did you run against the forward positions?

Did you analyze against all positions in all games (including future moves) from
here and minimax that?

I think you won't be able to get the right position from the root except by
blind chance.
[snip]



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