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Subject: Re: Is there a program that won't play 1.Nxb6+?

Author: Vincent Diepeveen

Date: 06:39:06 10/13/00

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On October 11, 2000 at 23:48:56, Robert Hyatt wrote:

>On October 11, 2000 at 02:21:40, Jim Monaghan wrote:
>
>>[D] 2k5/2p5/1q1p4/pPpPp1pp/N1P1Pp2/P4PbP/KQ4P1/8 w - - 0 1
>>
>>A. Petrosian - Hazai, 1970  As Dr. Nunn states in his annotations Black's
>>position is quite bad and he tried Qa7-b6 last move and White couldn't resist
>>snapping off the queen ... and drawing.  The correct scheme is to reject the
>>"gift" and play Qd2, Kb3, Nc3, Ka4, Na2-c1-b3 and Qxa5 with Black just watching.
>> I gave this to Crafty 17.13 ...
>>
>>20     4:33   5.32   1. Nxb6+ cxb6 2. h4 gxh4 3. Qc1 h3
>>                                    4. gxh3 h4 5. Kb3 Kd7 6. Kc3 Bf2 7.
>>                                    Kd3 Ke7 8. Qd2 Bg3 9. Qc2 <HT>
>>
>>Is there a program that "understands" the idea of a blockade, or is this still a
>>tough area for programmers ... where ply depth doesn't really help but something
>>in it's evaluation function?  From a human standpoint the concept is not that
>>complex although A. Petrosian stumbled ...
>>
>>Cheers,
>>
>>Jim
>
>
>I really don't deal with this case, because there is practically no chance that
>anyone could force crafty into a position like this, as it tries _so_ hard to
>prevent leverless positions.

oh well, how about grabbing that queen then directly h3-h4 qc1-h1-h3 and then
grab on h5 and then get the b6 and d6 pawn and win easily with white.

See you



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