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Subject: Re: Nice combination for your computers

Author: blass uri

Date: 12:09:08 02/09/99

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On February 08, 1999 at 17:20:31, Albert Silver wrote:

>Hi,
>
>I thought I'd submit the following combination from Marcio Miranda-GM Felix
>Izeta, Vince Toth Memorial, 6th round.
>
>6rk/3b1p2/1p1p3p/1Nb1p1r1/2P1Pp2/P2B2P1/1P3PKP/R4R2 b - - 0 26
>
>The winning move is 26...Bh3+!! How long does it take for your computer to play
>this and how long before it gives Black the advantage with this move.
>
>Just for your info: Black has two mating patterns here: 26...Bh3+ 27.Kxh3 f3
>28.Kh4? d5!! with Be7 and mate to follow, or the main line I have goes 26...Bh3+
>27.Kxh3 f3 28.g4! Rxg4 29.Nc3!! (best defense I've seen so far as Black is
>threatening a second mating pattern with R8g5, Rf4, and Rh5 mate) R8g5 30.Ne2
>fxe2 31.Bxe2 Rxe4 and Black is winning.
Chess master6000 see advantage for black after 2 minutes and 39 seconds on my
pentium200MMX(128M hash tables)

It gives at depth4/9 Bh3+ Kh1 Rh5 b4 fxg3 fxg3 Bd4 Nxd4 Bxf1Rxf1 exd4
with evaluation -0.23
after 22 minutes and 11 seconds it gives at depth 5/10:
Bh3+ Kf3 Bxf1 Rxf1 fxg3 hxg3 R8g6 b4 Rf6 Ke2 Bd4 Nxd4 exd4
with evaluation -0.27

Uri



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