Author: John Merlino
Date: 13:02:45 11/16/02
Go up one level in this thread
On November 16, 2002 at 14:45:55, Mike Byrne wrote:
>[d]5rk1/pp1rbpp1/1qbp1n1p/2p1pP2/2P1P1P1/PnNP1N1P/1P2BQ1K/2B2RR1 w - -
>
>This position arose between bettween me and Chessmaster for the Palm. I played
>Bxh6 and when on to win. I wasn't sure if the sacrifice was sound, but it
>appears to be with the engines I have when I play through the moves. I have yet
>to find an engine that would play Bxh6 quickly -- . Chessmaster played 2....
>hxg6 which made the win much easier. In fact after 2. ..hxg6 there are several
>force mates and almost all programs find one ot them instanteously.
>
>Below I played outthe position against Frizt 7 w quuick time controls
>
>Byrne,Michael - Fritz 7
>
>1.Bxh6 gxh6 2.g5 Ne8
>{
>hg6 loses instantly
>[d] 5rk1/pp1rbp2/1qbp1n2/2p1pPR1/2P1P3/PnNP1N1P/1P2BQ1K/5R2 b - - 0 3
>easy position for PC, a little tougher for Palms
>}
> 3.f6 Bd8 4.Qh4 d5 5.exd5 Nd4 6.Qxh6 Nf5 7.Qh5 e4 8.g6 fxg6 9.Qxg6+ Nfg7 10.dxc6
>Qc7+ 11.Rg3 bxc6 12.Ng5 Rxf6 13.Qh7+ Kf8 14.Qh8+ Ke7 15.Rxf6 1-0
Chessmaster 9000, on a P3-733, prefers g5:
Time Depth Score Positions Moves
0:00 1/3 -1.51 1228 1.g5 hxg5 2.Rxg5 Kh8 3.Rfg1
0:00 1/4 1.58 2496 1.g5 hxg5 2.Rxg5 Kh8 3.Rfg1 Nh7
0:00 1/3 -0.26 1174 1.Be3 Rdd8 2.Re1
0:00 1/4 -0.18 2200 1.Be3 Rdd8 2.Re1 Rc8
0:00 1/4 -0.07 2958 1.g5 hxg5 2.Bxg5 Rc8 3.Bh6
0:00 1/5 -0.07 7871 1.g5 hxg5 2.Bxg5 Rc8 3.Bh6
0:00 1/6 -0.07 26096 1.g5 hxg5 2.Bxg5 Rc8 3.Bh6 Bf8
0:01 1/7 0.15 78820 1.g5 hxg5 2.Bxg5 Rc8 3.Qh4 Qd8
4.Bh6 Bf8
0:02 1/8 0.39 163584 1.g5 hxg5 2.Bxg5 Ne8 3.Bh6 Kh8
4.Be3 Kg8
0:06 1/9 0.12 415400 1.g5 hxg5 2.Bxg5 Nd4 3.Bh6 Ne8
4.Nxd4 cxd4 5.f6 Bxf6
0:17 1/10 0.51 1224950 1.g5 hxg5 2.Bxg5 Nd4 3.Bh6 Ne8
4.Bd1 Nxf3+ 5.Bxf3 Bf6 6.b4 Nc7
1:11 2/11 0.74 5350752 1.g5 Nxc1 2.gxf6 Bxf6 3.Rxc1 Qxb2
4.a4 Qb4 5.Bd1 Re8 6.Nd5 Bxd5 7.cxd5
2:56 3/12 0.74 13759898 1.g5 Nxc1 2.gxf6 Bxf6 3.Rxc1 Qxb2
4.a4 Qb4 5.Bd1 Re8 6.Nd5 Bxd5 7.cxd5
And, also, in the continuation of the game you played against Fritz 7, 4...d5
appears to be less than optimal. The game is certainly lost before that move,
but after 4...d5, it's a forced mate in 7:
Time Depth Score Positions Moves
0:00 1/3 1.71 3421 5.exd5 e4 6.gxh6+ Kh8 7.dxc6 Qxc6
8.Nxe4 Nxf6
0:00 1/4 1.61 9115 5.exd5 Nd4 6.dxc6 Qxc6 7.Qxh6
0:00 1/5 1.97 20145 5.exd5 Nd4 6.dxc6 Qxc6 7.gxh6+
Kh8 8.Nxe5
0:01 1/6 1.87 68959 5.exd5 Nd4 6.dxc6 Qxc6 7.gxh6+
Kh8 8.Nxe5 Bc7
0:04 1/6 5.54 292642 5.Qxh6 Qc7 6.g6 fxg6 7.Rxg6+ Ng7
8.fxg7 Rxg7 9.Rxg7+ Qxg7 10.Rg1
Bf6 11.Rxg7+ Bxg7
0:05 1/7 9.18 405985 5.Qxh6 Qc7 6.g6 fxg6 7.Rxg6+ Rg7
8.fxg7 Nxg7 9.Ng5 Rf2+ 10.Rxf2
Bxg5 11.Rxg5
0:13 1/8 Mate11 1279933 5.Qxh6 Nd2 6.g6 Nxf3+ 7.Rxf3 fxg6
8.Qxg6+ Rg7 9.fxg7 Bf6 10.Rxf6
Nxf6 11.gxf8=Q+ Kxf8 12.Qxf6+ Ke8
13.Rg8+ Kd7 14.Qf7+ Kd6 15.Rg6#
0:21 1/9 Mate11 2132856 5.Qxh6 Nd4 6.g6 Nxf3+ 7.Rxf3 fxg6
8.Qxg6+ Rg7 9.fxg7 Bf6 10.Rxf6
Nxf6 11.gxf8=Q+ Kxf8 12.Qxf6+ Ke8
13.Rg8+ Kd7 14.Qf7+ Kd6 15.Rg6#
0:37 1/10 Mate07 3866086 5.Qxh6 Nd4 6.Rg4 Nf5 7.exf5 e4
8.Rh4 Qc7+ 9.Kh1 Qh2+ 10.Nxh2 dxc4
11.Qh8#
jm
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