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Subject: Re: Good Engine Test ...

Author: John Merlino

Date: 13:14:15 04/08/05

Go up one level in this thread


On April 08, 2005 at 15:37:56, Rob Basham wrote:

>[D]1k1r3r/1Pp2ppp/5n2/1pb4q/3P1pb1/1KP2N2/PP4PP/R1BQ1B1R b - - 0 1
>
>Found this in an old chess book today...
>
>black played...Rxd4...and went on to win...!
>London, 1880.
>
>Fritz 8 finds this move in 59 seconds....!
>P3-850

CM9_R1 on an AMD 2500 needs 27 seconds:

Time	Depth	Score	Positions	Moves
0:00	1/3	-0.55	5728		1...Kxb7 2.Bxb5 Bxd4 3.Qe2
0:00	1/3	-0.82	6860		1...Bd6 2.d5 Bd7
0:00	1/3	-0.90	14261		1...Qd5+ 2.Kc2 Qxb7 3.Bxf4 Rhe8
					4.dxc5 Rxd1 5.Rxd1
0:00	1/4	-0.49	23078		1...Qd5+ 2.Kc2 Qxb7 3.Bd3 Bd6 4.Kb1
0:00	1/4	-0.99	27590		1...Bd6 2.a4 Kxb7 3.Bxb5 Ne4
0:00	1/5	-0.77	76387		1...Bd6 2.a4 Qd5+ 3.Kc2 bxa4 4.Bd3
					Rhe8 5.Rxa4 Qxb7
0:00	1/5	-0.84	92820		1...Qd5+ 2.Kc2 Bf5+ 3.Bd3 Bxd4
					4.Bxf5 Qxf5+ 5.Qd3 Qxd3+ 6.Kxd3
					Be3+ 7.Nd4
0:01	1/6	-0.84	176052		1...Qd5+ 2.Kc2 Bf5+ 3.Bd3 Bxd4
					4.Bxf5 Qxf5+ 5.Qd3 Qxd3+ 6.Kxd3
					Be3+ 7.Nd4
0:04	1/7	-0.80	611733		1...Qd5+ 2.Kc2 Bf5+ 3.Bd3 Bxd4
					4.Bxf5 Qxf5+ 5.Qd3 Qxd3+ 6.Kxd3
					Be3+ 7.Nd4 Bxc1 8.Raxc1 Kxb7
0:09	1/8	-0.89	1677093		1...Qd5+ 2.Kc2 Bf5+ 3.Bd3 Bxd4
					4.Bxf5 Qxf5+ 5.Qd3 Qxd3+ 6.Kxd3
					Bf2+ 7.Kc2 Rhe8 8.Rf1 Re2+ 9.Kb1
					Kxb7 10.Bxf4
0:22	1/9	-1.34	4751096		1...Qd5+ 2.Kc2 Bf5+ 3.Bd3 Bxd4
					4.Bxf5 Qxf5+ 5.Qd3 Qxd3+ 6.Kxd3
					Be3+ 7.Kc2 Kxb7 8.a4 c6 9.Bxe3
					fxe3 10.axb5 cxb5
0:27	1/9	-1.39	6082953		1...Rxd4 2.cxd4 Qd5+ 3.Kc3 Ne4+
					4.Kc2 Nf2 5.Bxb5 Bf5+ 6.Kc3 Nxd1+
					7.Rxd1 Qxb7
0:33	1/10	-1.84	7663612		1...Rxd4 2.cxd4 Qd5+ 3.Kc3 Ne4+
					4.Kc2 Nf2 5.Bxb5 Bf5+ 6.Kc3 Nxd1+
					7.Rxd1 Bd6 8.a4 Kxb7
1:03	1/11	-1.33	16091890	1...Rxd4 2.cxd4 Qd5+ 3.Kc3 Ne4+
					4.Kc2 Nf2 5.Bxb5 Bf5+ 6.Kc3 Nxd1+
					7.Rxd1 Bd6 8.a4 Kxb7 9.Bc4

jm



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