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Subject: Re: Poor assessment by Crafty 16.14

Author: Robert Hyatt

Date: 12:06:41 07/27/99

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On July 27, 1999 at 14:07:22, Dave Gomboc wrote:

>Last night I reached the following position as White in the blitz portion of a
>game/30:
>
>White: Kg2, Qd5, pawns on b3, f2, g3, h4.
>Black: Kf6, Qe5, pawns on b4, g7, h7.
>White to move.
>
>I played 43. Qc6+, and my opponent blundered with 43...Qe6??  I went on to win
>the pawn ending after 44. Qxe6+ Kxe6 45. Kf3.
>
>Flipping through the game with Crafty, I noticed that it also liked 43...Qe6.
>In fact, it holds this move until at least depth=16.  (I didn't let it analyze
>further, but really, this should be seen at depth far less than 16.)  It clearly
>doesn't realize just how winning White's position is after the queen trade.
>
>Another test position for Bob's collection?
>
>Dave


It will understand this before long.  It already understands 'outside passed
pawns' quite well... but at present, it doesn't understand that pawn majority
turns into outside passer later on.



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