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Subject: Re: Bug in Crafty 17.10

Author: Enrique Irazoqui

Date: 11:24:42 04/22/00

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On April 22, 2000 at 14:00:03, Robert Hyatt wrote:

>On April 22, 2000 at 13:39:23, Vincent Lejeune wrote:
>
>>Crafty in fritz interface have a probl with this position :
>>
>>
>>5k2/5n1R/5N1P/p7/8/6K1/r4PP1/8 b - - 0 1
>>
>>Analysis by Crafty 17.10:
>>
>>1. # (#0): 37...Rd2
>>2. -+ (-#1): 37...Ra3+
>>
>>
>>the 2 best moves have a completely wrong evaluation
>
>the 'normal' version has no problem.  after a minute on my notebook,
>the eval is -2.52 after 13 plies...

Same as Crafty 17.10 for Chessbase:

5k2/5n1R/5N1P/p7/8/6K1/r4PP1/8 b - - 0 1

Analysis by Crafty 17.10:

1...Ke7 2.Nd5+ Ke6 3.Nc7+ Kf6 4.Ne8+ Ke6 5.Kf3
  +-  (3.52)   depth: 1/2   00:00:01
  +-  (3.30)   depth: 5/12   00:00:01
1...Re2 2.f3 Ke7 3.Nd5+ Kd6 4.Nf4 Re7
  +-  (3.19)   depth: 5/12   00:00:01
  +-  (3.34)   depth: 6/14   00:00:01  32kN
1...a4 2.Nd7+ Ke8 3.f4 Re2 4.Kf3 Re6 5.Nc5 Rxh6 6.Rxh6 Nxh6 7.Nxa4
  +-  (3.12)   depth: 6/14   00:00:01  65kN
  +-  (3.12)   depth: 9/20   00:00:02  563kN
1...Rd2 2.Ne4 Rc2 3.Kh4 a4 4.Ng5 Nxg5 5.Kxg5 Rxf2 6.g4 a3
  +-  (2.92)   depth: 9/20   00:00:05  1681kN, tb=1
  +-  (2.52)   depth: 13/28   00:00:46  17053kN, tb=619

(Irazoqui, CadaquƩs 22/04/00)

Enrique




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