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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