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Subject: Re: crafty's strange blunder

Author: blass uri

Date: 07:01:08 09/07/99

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On September 07, 1999 at 09:20:05, blass uri wrote:

>On September 06, 1999 at 17:52:31, James T. Walker wrote:
>
>>Here is game 7 as mentioned in the subject line.  This is an interesting game
>>because of the uneven material of Q vs RBN.  Usually the 3 pieces win this type
>>game.  The 3 pieces in the hands of a computer become a multi-arm monster.
>>Crafty now leads the match 5-2.
>>
>>
>>
>>
>>[Event "40/2"]
>>[Site "?"]
>>[Date "1999.09.06"]
>>[Round "7"]
>>[White "Chess Tal II"]
>>[Black "Crafty 16.15"]
>>[Result "0-1"]
>>
>>1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 exd4 8.
>>Re1 d5 9. Nc3 dxc3 10. Bxd5 Bb7 11. Bg5 Be7 12. Rxe4 f6 13. Bxf6 gxf6 14. Ng5
>>fxg5 15. Qh5+ Kd7 16. Be6+ Kd6 17. Qh3 Nb4 18. Rd1+ Kc6 19. Rxd8 Raxd8
>
>r2R3r/1bp1b2p/p1k1B3/1p4p1/1n2R3/2p4Q/PPP2PPP/6K1 b - - 0 1
>
>I do not understand what is the reason that crafty did not play 19...Rhxd8
>
>My crafty16.6 as an engine for Junior wants to play Rhxd8 and after Raxd8? Bd7+
>there is a significant drop in the evaluation.

Tal also did a big mistake when it missed a draw in the game by 16.Qh3+ or
16.Qg4+ but it is not surprising because when I look at the games I see that the
wrong knowledge of tal pushes it to play bad moves.

I want to know what was tal's evaluation when it played 16.Be6+?

Uri



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