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Subject: Re: Rybka EGTB example

Author: George Tsavdaris

Date: 11:09:22 01/27/06

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On January 27, 2006 at 13:49:15, G. R. Morton wrote:

>On January 27, 2006 at 12:27:46, Jouni Uski wrote:
>
>>
>>8/7p/8/p4p2/5K2/Bpk3P1/4P2P/8 w - - 0 1
>>
>>1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+
>>  ±  (1.25)   Depth: 17   00:00:26  2132kN
>>1.g4 fxg4 2.e4 Kc4 3.Kxg4 Kb5 4.Kg5 Ka4 5.Bc1 Kb5 6.e5 a4 7.e6 Kc6
>>  +-  (4.09)   Depth: 17   00:00:59  6451kN
>>1.g4 fxg4 2.e4 Kc4 3.Kxg4 Kb5 4.Kg5 Ka4 5.Bc1 Kb4 6.e5 a4 7.e6 a3
>>  +-  (5.33)   Depth: 18   00:01:06  8045kN
>>
>>I have one CD = 700 MB tablebases.
>>
>>Jouni
>
>Very interesting, it's endgame positions like these that make even the best
>engines look so dumb - a human sub-expert can easily see that g4 is the tempo
>move. However, Shredder 8 has no problem here. Presumably Rybka versions will
>eventually find quickly such endgame moves.
>
Do you want more quickly than 59 seconds.....? :-)



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