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Subject: Re: Test - Pawn ending

Author: Bertil Eklund

Date: 13:36:27 02/27/01

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On February 27, 2001 at 15:37:03, Sune Larsson wrote:

>
>  [D]8/6k1/2p5/pp2p3/4P1K1/2PP4/P7/8 b - - 0 1
>
>  This is Damjanovic-Dvorecki, Vilnius 1978. Mistakes in the endgame are
>  punished severely. Here black is on the move and has to decide if he
>  wants to lose with 1.-c5??, thinks peace and draw is good enough with 1.-Kf6?,
>  or goes for the whole cheese with 1.-Kg6! Oh, this is just tiresome
>  calculation. No match for Kasparov, I guess. Computers?
>
>  The game went like this:
>
>  1.-Kg6!  [1.-c5?? 2.Kf5 b4 3.cxb4 cxb4 4.Kxe5 a4 5.Kd4+-]
>           [1.-Kf6? 2.Kf3 c5 3.Ke3 b4 4.d4! cxd4+ 5.cxd4 a4 6.dxe5+ Kxe5 7.Kd3=]
>
>  2.Kf3  [2.d4 exd4 3.cxd4 b4-+]  2.-c5 3.Ke3  [3.d4 cxd4 4.cxd4 b4! 5.Ke3 a4-+]
>  3.-b4 4.d4  [4.cxb4 cxb4 5.Kd2 a4! 6.Kc2 Kg5 7.Kd2 Kf4-+]
>  4.-cxd4+ 5.cxd4 a4! 6.Kd3 b3 7.axb3 a3 8.Kc2 exd4 9.b4 d3+ 0-1
>
>  Test: 1.-c5?? loses. If you are a programmer please rewrite your program
>                       totally from scratch. If you are a consumer just
>                       throw the damned thing. ;)
>
>        1.-Kf6? draws. Ok, peaceful mind - but you just missed some glory.
>                       Programmers: Have a look at the evals - the right move
>                       was just around the corner.
>
>        1.-Kg6! wins.  Congrats! This is good stuff. Just hope the margin
>                       to 1.-Kf6? was more than 0.02...
>
>  Sune
Hi!

Both Shredder4 and Nimzo8 thinks Kf6 is winning. Nimzo thinks Kg6 wins also both
moves +2.66 after 10 minutes.

Bertil



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