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Subject: Re: Hard Tactical Position for CM9000 or Deepfritz7

Author: John Merlino

Date: 15:54:07 08/28/02

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On August 28, 2002 at 04:49:19, George Piles wrote:

>
> [D]2r2rk1/p3bb1p/2n1Q1p1/q2pP3/3P1P2/p1NB1NR1/1P4P1/1K1R4 w - - id id Pos   1 -
>REBEL - EVANS.EPD;
>
>
>  How long does it take your program to get a Positive score in this position
>after the key move?

On a busy PIII-600, it takes Chessmaster 9000 3:01 to find Bxg6. But it does not
see the move as winning until 10:27....

Time	Depth	Score	Positions	Moves
0:00	1/3	-1.66	3248		1.Qd7 axb2 2.Bb5 Qxc3 3.Bxc6
0:00	1/3	-1.61	5455		1.Qh3 axb2 2.Rh1 Qa1+ 3.Kc2
0:00	1/4	-1.88	9859		1.Qh3 axb2 2.Bf5 Qa1+ 3.Kc2 Rb8
0:00	1/4	-1.73	14844		1.Qd7 axb2 2.Na2 Qa3 3.Bb5
0:01	1/5	-3.26	52623		1.Qd7 axb2 2.e6 Qa1+ 3.Kc2 Nxd4+
					4.Kd2 b1=N+ 5.Nxb1 Bb4+ 6.Ke3 Bxe6
0:02	1/5	-3.01	113233		1.Qg4 axb2 2.e6 Qa1+ 3.Kc2 Nxd4+
					4.Nxd4 Rxc3+ 5.Kd2 Qc1+ 6.Ke2
0:03	1/6	-3.25	197605		1.Qg4 Rb8 2.Bb5 Rxb5 3.Nxb5 Qxb5
					4.Rd2 Qf1+ 5.Kc2 Nb4+ 6.Kb3 Qc4+
					7.Ka4 axb2 8.Rxb2 Qa6+ 9.Kb3
0:22	1/7	-5.52	1323655		1.Qg4 axb2 2.Bf5 Qa1+ 3.Kc2 Nb4+
					4.Kd2 Rxc3 5.Rb1 Qa3 6.Qh3
0:28	1/7	-3.26	1716129		1.Qd7 axb2 2.e6 Qa1+ 3.Kc2 Nxd4+
					4.Kd2 b1=N+ 5.Nxb1 Bb4+ 6.Ke3 Bxe6
0:48	1/8	-3.52	2786031		1.Qd7 axb2 2.e6 Qa1+ 3.Kc2 Nxd4+
					4.Kd2 b1=N+ 5.Nxb1 Bb4+ 6.Ke3 Bxe6
					7.Qb7 Bc5
1:46	1/9	-3.95	6541132		1.Qd7 axb2 2.e6 Qa1+ 3.Kc2 Nxd4+
					4.Kd2 Rxc3 5.exf7+ Rxf7 6.Qe8+
					Bf8 7.Bb1 Nxf3+ 8.gxf3 Qa3
3:01	1/9	-2.30	11896182	1.Bxg6 Bxe6 2.Bxh7+ Kh8 3.Rh1 Bh3
					4.Bf5 Bh4 5.Nxh4 a2+ 6.Nxa2
4:12	1/10	-0.49	17406255	1.Bxg6 Bxe6 2.Bxh7+ Kh8 3.Rh1 a2+
					4.Nxa2 Rxf4 5.Bf5+ Bh4 6.Nxh4 Rf1+
					7.Rxf1 Nxd4 8.Ng6+ Kg7
10:27	2/11	1.16	45426255	1.Bxg6 Bxe6 2.Bxh7+ Kh8 3.Rh1 a2+
					4.Nxa2 Bh4 5.Rxh4 Rxf4 6.Rxf4 Qa6
					7.Bc2 Qf1+ 8.Nc1

jm



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