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Subject: Re: Engine Test......RXh6....!!

Author: John Merlino

Date: 08:48:03 12/23/05

Go up one level in this thread


On December 23, 2005 at 09:29:44, Rob Basham wrote:

>[D]r1b3k1/p2p1nP1/2pqr1Rp/1p2p2P/2B2nQ1/1P6/PBPP4/1K4R1 w - - 0 1
>
>Any engine find this move?
>My conputer is too slow to find it.
>
>white ....(Teichmann..1921) actually makes way for the h pawn to advance,
>and the g pawn is able to Queen and win!
>
>Rob

Bxe6 looks better. This is CM9_R1 on a P4-2.4:

Time	Depth	Score	Positions	Moves
0:00	1/3	-1.03	820		1.Bxe6 dxe6 2.d3 Nxg6 3.Qxg6
0:00	1/4	0.62	3107		1.Bxe6 dxe6 2.Rf6 Qc7 3.d4
0:00	1/5	0.64	21675		1.Bxe6 dxe6 2.Rf6 Qc7 3.Bxe5 Qxe5
					4.Rxf7
0:00	1/6	0.91	51312		1.Bxe6 dxe6 2.Rf6 Qc7 3.Bxe5 Qxe5
					4.Qxf4 Qxf4 5.Rxf4
0:00	1/7	-0.11	96496		1.Bxe6 dxe6 2.Rf6 Qe7 3.Bxe5 Nd5
					4.Qg6 Nxf6 5.Bxf6
0:02	1/8	1.29	317488		1.Bxe6 Nxe6 2.Rf6 Qe7 3.Bxe5 Neg5
					4.Bb2 d6
0:04	1/9	1.57	740334		1.Bxe6 dxe6 2.Rf6 Qd7 3.Rf1 Ba6
					4.Bxe5 Nd3 5.Bb2
0:08	1/10	3.42	1707769		1.Bxe6 dxe6 2.Rf6 Qe7 3.Qh4 Qe8
					4.Rxf7 Kxf7 5.g8=Q+ Qxg8 6.Rxg8
					Kxg8 7.Qd8+ Kf7 8.Qc7+ Kg8 9.Bxe5
0:21	1/11	3.64	4396003		1.Bxe6 dxe6 2.Rf6 Qe7 3.Qh4 Bb7
					4.Rxf4 Qd7 5.Rf2 c5 6.Qf6 Rd8 7.Bxe5
					Nxe5 8.Qxe5
0:44	1/12	3.84	9996265		1.Bxe6 dxe6 2.Rf6 Qe7 3.Qh4 Ba6
					4.Rxf4 Qg5 5.Qxg5 hxg5 6.Rf6 Kxg7
					7.Rxe6

After forcing Rxh6:

Time	Depth	Score	Positions	Moves
0:00	1/4	-5.29	7993		2.Bxe6+ Qxe6 3.Qxe6+ Nxe6 4.Rg6
					Nf7 5.h6 Bb7
0:00	1/4	-4.95	11815		2.Qg5 Nf7 3.Qf5 Bb7 4.Bxe6 Qxe6
0:00	1/5	-4.95	16470		2.Qg5 Nf7 3.Qf5 Bb7 4.Bxe6 Qxe6
0:00	1/6	-5.31	37356		2.Qg5 Nf7 3.Bxe6 Qxe6 4.Qh4 Bb7
					5.d3
0:00	1/7	-5.53	84686		2.Qg5 Nf7 3.Bxe6 Qxe6 4.Qh4 d5
					5.d4 Qh3
0:00	1/7	-5.43	114570		2.Bxe6+ Qxe6 3.Qxe6+ Nxe6 4.Bxe5
					d6 5.Bxd6 Nxg7 6.Rg6 Nf5 7.h6
0:01	1/8	-5.62	239051		2.Bxe6+ Qxe6 3.Qxe6+ Nxe6 4.Bxe5
					Nf5 5.Rg6 Bb7 6.h6 Kh7 7.Rg4 Nxh6
0:03	1/9	-5.43	646493		2.Bxe6+ Qxe6 3.Qxe6+ Nxe6 4.Bxe5
					Nf5 5.Rg6 Bb7 6.a4 Kh7 7.axb5 Nexg7
					8.bxc6 Bxc6
0:09	1/9	0.00	1886530		2.Qg5 bxc4 3.Qd8+ Kf7 4.g8=Q+ Nxg8
					5.Qxg8+ Kf6 6.Qg5+ Kf7 7.Qg8+
0:16	1/10	1.02	3678674		2.Qg5 bxc4 3.Qd8+ Kf7 4.g8=Q+ Nxg8
					5.Qxg8+ Kf6 6.Qg7+ Kf5 7.Qg4+ Ke4
					8.Re1+ Kd5 9.Qf3+ Kc5 10.Ba3+ Kb6
					11.Bxd6 Rxd6 12.Rxe5 Rd4 13.Qc3
0:36	1/11	0.79	8241054		2.Qg5 bxc4 3.Qd8+ Kf7 4.g8=Q+ Nxg8
					5.Qxg8+ Kf6 6.Qg7+ Kf5 7.Qg4+ Ke4
					8.Re1+ Kd5 9.Qf3+ Kc5 10.Ba3+ Kb6
					11.Bxd6 Rxd6 12.Rxe5 Rf6 13.Qe3+
					Kb7 14.bxc4
1:35	1/12	1.13	22249940	2.Qg5 bxc4 3.Qd8+ Kf7 4.g8=Q+ Nxg8
					5.Qxg8+ Kf6 6.Qg7+ Kf5 7.Qg4+ Ke4
					8.Re1+ Kd5 9.Qf3+ Kc5 10.Ba3+ Kb6
					11.Bxd6 Rxd6 12.Rxe5 Rf6 13.bxc4
					Kc7 14.Ra5

jm



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