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Subject: Re: A remarkable game, Crafty vs GM Loek van Wely

Author: Phil Dixon

Date: 18:33:59 07/13/99

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On July 13, 1999 at 20:19:30, Bruce Moreland wrote:

>
>On July 13, 1999 at 19:26:56, Phil Dixon wrote:
>
>>On July 13, 1999 at 00:23:03, Robert Hyatt wrote:
>>
>>>
>>>Earlier tonite, Crafty was involved in a match with GM Loek van Wely on
>>>ICC.  5 3 time control, and crafty was winning about its normal percentage
>>>against him (about 80%, match was 9 wins, 2 losses, 1 draw at the point
>>>where the following game was played).  In this game, Crafty was
>>>in book until move 23.  As we passed move 20, I was counting pawns
>>>and pieces and concluded white was probably lost.  At move 23,
>>>Crafty's first search said -4.00, and I thought aha, book learning
>>>to the rescue as this is dead lost.  But without spoiling anything,
>>>this was the result.  :)
>>>
>>>Actually, I will spoil it.  At move 40, it announced a mate in 38 moves.
>>>
>>>:)
>>
>>Did GM Van Wely know that Crafty had announced a mate in 38?  Do you think it is
>>demoralizing to the GM when computers announce mates in a large number of moves?
>>  In analyzing the game with Fritz, move 18 for White, and move 31...?? for
>>Black are not looked on favorably.  Would you agree with that assessment?
>
>Crafty was in book until approximately move 23.  I haven't played over the game,
>but I know that the opening is well known.
>
>bruce

After searching the "Big 98" database from ChessBase on position, I find a total
of 46 games out of 875,000. I think this hardly qualifies as "well known".  No
less than 15 had the move 18.c4 instead of 18.Nxf6+.  With the move 18.Nxf6+,
White won 32% of the games and Black won 25%.  The move 18.c4 has 26% wins for
White and 40% for Black.  While it appears that 18.Nxf6+ is the more playable
move, Black did make several errors in this game.
However, on move 32...Kb5 is the only move.



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