Author: John Merlino
Date: 20:39:50 04/08/04
Go up one level in this thread
On April 08, 2004 at 22:15:00, scott farrell wrote: >This position arose on ICC Goona vs Chompsterx > >here white has an attack coming, with a bishop sac on g6, and black's pieces are >woefully out of position to defend. While white can poure more pieces in. > >The obvious move is g6, but chompster and crafty see black is still winning >until some depth, where they realise white is winning. > >I had cm9000 look at it for a few minutes on a PIII850 and it still says g6, but >says white is winning by the smallest of margins. > >As far as I can see its lost for black. > >I am interested in what other engines think. > >[d]r4rk1/p2b1ppp/1qn2P2/3pP3/2pP4/b1P1BN1P/P1B2Q2/R4NK1 b - - 0 23 > >as you can see below crafty takes about 12 plies to see its in trouble, and 14 >plies and overnight to see ne7. > >I am unsure if ne7 is a better move The CM_SKR personality of Chessmaster 9000, on an AMD 1800+, switches from g6 to Ne7 in about 90 seconds. Time Depth Score Positions Moves 0:00 1/3 -1.60 2528 23...g6 24.Rb1 Bb2 25.Ba4 0:00 1/4 -1.71 24215 23...g6 24.Rb1 Qa5 25.Bh6 Qxc3 26.Bxf8 Rxf8 0:00 1/5 -1.58 74717 23...g6 24.Bh6 Rfb8 25.Ne3 Qa5 0:00 1/6 -1.65 111608 23...g6 24.Qh4 h5 25.Rb1 Bb2 26.Ba4 0:01 1/7 -0.85 202273 23...g6 24.Qh4 Rfb8 25.Ng5 h5 26.e6 Be8 27.exf7+ Bxf7 28.Nxf7 Kxf7 0:03 1/8 -1.19 518286 23...g6 24.Qh4 Rfb8 25.Ng5 h5 26.e6 Bxe6 27.Nxe6 Qb2 28.Rc1 fxe6 29.Bxg6 0:07 1/9 0.30 1307872 23...g6 24.Qh4 Rfc8 25.Bxg6 fxg6 26.f7+ Kxf7 27.Qxh7+ Ke8 28.Qg8+ Bf8 29.Bh6 Kd8 30.Qxf8+ Kc7 1:03 1/10 0.64 12174030 23...g6 24.Qh4 Rfb8 25.Bxg6 fxg6 26.f7+ Kxf7 27.Qxh7+ Ke8 28.Qg8+ Bf8 29.Bh6 Bxh3 30.Qxf8+ Kd7 31.Qd6+ Kc8 32.Qxd5 Qa6 1:32 1/10 0.26 19539768 23...Ne7 24.Bc1 Qa6 25.Bxa3 Qxa3 26.fxe7 Qxe7 27.Ne3 Be6 28.Qh4 Qxh4 29.Nxh4 Rab8 30.Rb1 Rxb1+ 31.Bxb1 Rb8 3:16 1/11 0.60 44098576 23...Ne7 24.Bc1 Bxc1 25.fxe7 Rfe8 26.Rxc1 h6 27.Ne3 Qa5 28.Rb1 Bc6 29.Ng4 Rxe7 jm
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