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Subject: Re: Me vs. Crafty

Author: Uri Blass

Date: 09:37:40 05/26/04

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On May 26, 2004 at 12:21:55, Mihaly Szalai wrote:

>On May 26, 2004 at 11:56:39, Uri Blass wrote:
>
>>On May 26, 2004 at 10:45:18, Mihaly Szalai wrote:
>>
>>>I've just played this entertaining game against Crafty 19.13.
>>>
>>>[Event ""]
>>>[Site "Celeron 1.7 GHz"]
>>>[Date "2004.5.26"]
>>>[Round ""]
>>>[White "Szalai,M."]
>>>[Black "Crafty 19.13"]
>>>[TimeControl "1800+5"]
>>>[Result "1-0"]
>>>
>>>1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.Nxe5 Nd7 6.Nxd7 Bxd7 7.O-O Qh4
>>>8.c4 O-O-O 9.c5 g5 10.Nc3 Bg7 11.g3 Qh3 12.Nxe4 dxe4 13.Bxe4 Bb5 14.Bg2
>>>Qf5 15.Be3 Bxf1 16.Bxf1 c6 17.Qa4 Kb8 18.Rd1 Rd7 19.Rd3 h5 20.Ra3 a6
>>>21.Bxa6 bxa6 22.Qxc6 Qe6 23.Rb3+ Ka7 24.Qa4 Rd5 25.Rb6 Qc8 26.Qb3 Rhd8
>>>27.c6 Ka8 28.c7 Qxc7 29.Rxa6+ Qa7 30.Qb6 Qxa6 31.Qxa6+ Kb8 32.b4 R8d6
>>>33.Qe2 Bxd4 34.Bxd4 Rxd4 35.Qe8+ Kb7 36.Qxf7+ Rd7 37.Qxh5 Rxb4 38.Qxg5
>>>Rb2 39.a4 Rd1+ 40.Kg2 Rdd2 41.Qf4 Rd7 42.h4 Rb6 43.h5 Kc6 44.g4 Kb7
>>>45.g5 Re6 46.h6 Rh7 47.Qg4 Rc6 48.Qe4 1-0
>>>
>>>After following a well-known opening line, we arrived to this position
>>>some moves later:
>>>
>>>[D]1k5r/1p1r1pb1/p1p5/2P2qpp/Q2P4/R3B1P1/PP3P1P/5BK1 w - - 0 21
>>>
>>>21.Bxa6!
>>>
>>>And the rest was easy.
>>>Isn't chess beautiful?
>>>
>>>You can see a screenshot of the final position here:
>>>http://www.geocities.com/misimatt/crw.jpg
>>>
>>>Mihaly
>>
>>I do not see it as easy to calculate and see that 21.Bxa6 is good.
>>I do not see a single forced line after 21.Bxa6
>
>Take a closer look at it and show me a defense for black.
>22...Qe6 was a bad move. After that it's a forced win to white.

Yes

leaqning this game by yace by going backward could show more than +2 for white
after 22...Qe6

>
>[D]7r/k2r1pb1/p3q3/2P3pp/Q2P4/1R2B1P1/PP3P1P/6K1 b - - 0 24
>
>
>>
>
>Other moves was bad as well. Eg. 22...Rb7 23. Qxd6 Rc7 24. Rb3 Kc8 25. Qxa6 Kd7
>27.d5 and how do you defend yourself?

It does not seem good for black at move 22

Yace after learning suggests 22...Rc7 but I suspect that it leads to similiar
line when white also capture a6

Szalai,M - Crafty 19.13, Celeron 1.7 GHz 2004
1k5r/3r1pb1/p1Q5/2P2qpp/3P4/R3B1P1/PP3P1P/6K1 b - - 0 1

Analysis by Yace Paderborn:

22...Rc7 23.Qxa6 Rb7 24.Qd6+ Rc7 25.h4 Qb1+ 26.Kh2 Qg6 27.Qd5 Rb7 28.Rb3 Rxb3
  =  (0.19)   Depth: 11/42   00:09:24  197014kN

(Blass, Tel-Aviv 26.05.2004)

Uri



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