Author: Tord Romstad
Date: 09:13:07 04/25/04
Go up one level in this thread
On April 24, 2004 at 12:51:02, Will Singleton wrote:
>[D]rn1qk2r/p2nbp2/1p2p1p1/2ppP1Np/3P1PP1/P1N1B2Q/1PP4P/R3KR2 w Qkq - 0 16
>
>Nxf7 is a pretty speculative move, I don't think any other chess program would
>play this.
Looks like a simple (but pretty) tactical win to me, but I'm a just a patzer.
Here is
Gothmog's analysis on a PIV 2.4 GHz. Nxf7 is played after 12 plies and 31
seconds:
1 0.44 0.00 363 dxc5 bxc5
2 0.44 0.01 1088 dxc5 bxc5
3 0.44 0.02 2079 dxc5 bxc5 Qh4
4 0.38 0.05 6128 O-O-O Bxg5 fxg5 cxd4 Rxd4 Nxe5
5 0.38 0.21 22666 Nf3
6 >= 0.38 0.26 30844 Nf3
6 >= 0.41 0.27 32324 Nf3
6 >= 0.53 0.31 37624 Nf3
6 <= 0.78 0.33 41964 Nf3
6 <= 0.75 0.34 43033 Nf3
6 <= 0.69 0.34 44802 Nf3
6 >= 0.56 0.35 46262 Nf3
6 <= 0.56 0.36 48616 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8
6 0.56 0.36 48616 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8
7 >= 0.56 0.43 59513 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5
7 >= 0.59 0.45 63067 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5
7 <= 0.69 0.51 72881 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5
7 <= 0.66 0.51 73743 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5
7 <= 0.59 0.53 76598 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5
7 0.59 0.53 76598 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5
8 >= 0.59 0.79 119803 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5
8 <= 0.59 1.13 177234 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5 Bg5+ Kb1
Nxd4 Rxd4
8 0.59 1.13 177234 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5 Bg5+ Kb1
Nxd4 Rxd4
9 >= 0.59 1.60 263110 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5 Bg5+ Kb1
Nxd4 Rxd4
9 <= 0.59 2.15 359266 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5 Bg5+ Kb1
Nxd4 Rxd4
9 0.59 2.15 359266 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5 Bg5+ Kb1
Nxd4 Rxd4
10 <= 0.56 3.90 666319 Nf3 cxd4 Bxd4 Nc6 O-O-O Rc8 f5 Nxd4 Rxd4
Bxa3
10 <= 0.53 4.74 827939 Nf3 Nc6 O-O-O Rc8 f5 cxd4 Nxd4 Nxd4 Bxd4
Bg5+
10 >= 0.50 5.29 932533 Nf3 Nc6 O-O-O Rc8 f5 cxd4 Nxd4 Nxd4 Bxd4
Bg5+ Kb1
10 >= 0.53 5.58 992298 Nf3 Nc6 O-O-O Rc8 dxc5 Bxc5 Bd4 Bxd4 Nxd4
Nxd4 Rxd4
10 0.53 5.58 992298 Nf3 Nc6 O-O-O Rc8 dxc5 Bxc5 Bd4 Bxd4 Nxd4
Nxd4 Rxd4
11 >= 0.53 7.82 1414439 Nf3 Nc6 O-O-O Rc8 f5 cxd4 Nxd4 Nxd4 Bxd4
Bg5+ Kb1
11 >= 0.56 9.04 1662298 Nf3 Nc6 O-O-O Rc8 f5 cxd4 Nxd4 Nxd4 Bxd4
Bg5+ Kb1
11 <= 0.66 12.88 2333379 Nf3 Nc6 O-O-O Rc8 f5 cxd4 Nxd4 Nxd4 Bxd4
Bg5+ Kb1 gxf5 gxf5
11 <= 0.62 14.08 2558917 Nf3 Nc6 O-O-O Rc8 f5 cxd4 Nxd4 Nxd4 Bxd4
Bg5+ Kb1 gxf5 gxf5
11 >= 0.59 15.15 2782516 Nf3 Nc6 O-O-O Rc8 f5 cxd4 Nxd4 Nxd4 Bxd4
Bg5+ Kb1 gxf5 gxf5
11 <= 0.59 17.42 3232221 Nf3 cxd4 Nxd4 Bh4+ Kd2 hxg4 Qxg4 Qe7 Rad1
Kf8 Kc1
11 0.59 17.42 3232221 Nf3 cxd4 Nxd4 Bh4+ Kd2 hxg4 Qxg4 Qe7 Rad1
Kf8 Kc1
12 >= 0.59 31.18 5651715 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Bh4+ Kd1 Rf8 Rf7+ Rxf7 Qxf7+
12 >= 0.62 32.88 5981637 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Bh4+ Kd1 Rf8 Rf7+ Rxf7 Qxf7+
12 >= 0.75 38.81 7045875 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Bh4+ Kd1 Rf8 Rf7+ Rxf7 Qxf7+
12 >= 1.03 49.11 8855663 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Bh4+ Kd1 Rf8 Rf7+ Rxf7 Qxf7+
12 <= 1.50 55.07 9855699 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Bh4+ Kd1 Bf2 Qf7+ Kh6 g7 Nxe5 gxh8Q+
Qxh8 Qf5
12 <= 1.47 55.53 9963515 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Bh4+ Kd1 Bf2 Qf7+ Kh6 g7 Nxe5 gxh8Q+
Qxh8 Qf5
12 <= 1.41 55.98 10075597 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Bh4+ Kd1 Bf2 Qf7+ Kh6 g7 Nxe5 gxh8Q+
Qxh8 Qf5
12 <= 1.25 59.44 10696548 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Rf8 Rf7+ Rxf7 Qxf7+ Kh6 Qh7+ Kg5
Nxd5 Nxe5 Nxe3
12 >= 1.06 1:06 11904802 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Rf8 Rf7+ Rxf7 Qxf7+ Kh6 Qh7+ Kg5
Nxd5 Nxe5 Nxe3
12 >= 1.09 1:08 12291198 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Rf8 Rf7+ Rxf7 Qxf7+ Kh6 Qh7+ Kg5
Nxd5 Nxe5 Nxe3
12 <= 1.19 1:09 12571480 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Rf8 Rf7+ Rxf7 Qxf7+ Kh6 Qh7+ Kg5
Nxd5 Nxe5 Nxe3
12 <= 1.16 1:10 12681172 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Rf8 Rf7+ Rxf7 Qxf7+ Kh6 Qh7+ Kg5
Nxd5 Nxe5 Nxe3
12 >= 1.12 1:11 12934291 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Rf8 Rf7+ Rxf7 Qxf7+ Kh6 Qh7+ Kg5
Nxd5 Nxe5 Nxe3
12 >= 1.16 1:12 13141530 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Rf8 Rf7+ Rxf7 Qxf7+ Kh6 Qh7+ Kg5
Nxd5 Nxe5 Nxe3
12 1.16 1:12 13141530 Nxf7 Kxf7 f5 cxd4 fxg6+ Kg7 gxh5 dxe3
Qxe6 Rf8 Rf7+ Rxf7 Qxf7+ Kh6 Qh7+ Kg5
Nxd5 Nxe5 Nxe3
Tord
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