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Subject: Re: Mate in 12 - CM9000 Results

Author: Roy Brunjes

Date: 05:10:08 09/01/03

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On August 31, 2003 at 23:27:53, Slater Wold wrote:

>Can you beat Ruffian's time?  (P4 3.06Ghz - 100MB HTs)  I am curious to see CM9k
>results.
>
>[D]8/1P1bp1kp/3P1p2/R7/4Pb2/5P2/4KR2/6q1 b - - 0 44
>
>00:00:00.0	-0.23	1	3	exd6 b8Q
>00:00:00.0	6.83	1	6	Bxd6
>00:00:00.0	6.56	2	369	Bxd6 Ra7
>00:00:00.0	6.82	3	3601	Bxd6 Rf1 Qd4
>00:00:00.0	5.48	4	7116	Bxd6 Rd5 Bc6 Rxd6 Bxb7
>00:00:00.0	5.50	4	14145	Qb1 Rg2+ Kf7 Rh5 Qxb7 Rxh7+
>00:00:00.0	5.89	5	30785	Qb1 Rg2+ Kf7 b8Q Qxb8 dxe7 Kxe7 Rg7+ Kd6 Rxh7
>00:00:00.0	5.91	5	34945	Bxd6 Rd5 Bg3 Rxd7 Qxf2+ Kd3 Qxf3+
>00:00:00.1	6.55	6	67677	Bxd6 Rd5 Qb1 Rg2+ Kf8 Rh5 Bf4 b8Q+ Qxb8 Rxh7
>00:00:00.1	7.01	6	116475	Qb1 Rg2+ Kf7 b8Q Qxb8 dxe7 Bb5+ Kd1 Kxe7
>00:00:00.2	7.57	7	308845	Qb1 Rg2+ Kf7 Rh5 Bb5+ Rxb5 Qxb5+ Kf2 Qxb7 dxe7 Qa7+ Ke2
>00:00:00.9	8.08	8	1229946	Qb1 Rd5 Bb5+ Rxb5 Qxb5+ Kd1 exd6 Rg2+ Bg5 Kc2 Qxb7 Rg1
>00:00:01.4	8.21	9	1982474	Qb1 Rg2+ Kf7 Rh5 Bb5+ Rxb5 Qxb5+ Kf2 Bxd6 f4 Bc5+ Kf3
>Qxb7
>00:00:02.3	8.32	10	3295262	Qb1 Rg2+ Kf7 Rh5 Bb5+ Rxb5 Qxb5+ Kf2 Bxd6 f4 h5 Kg3
>Qxb7
>00:00:02.6	8.56	10	3684627	Bg3
>00:00:03.1	9.68	10	4400400	Bg3 b8Q Qxf2+ Kd1 Qe1+ Kc2 Qxa5 Qb2 Be5 Qb7 Qc3+ Kd1
>Qxf3+ Ke1
>00:00:07.5	13.74	10	11566347	Bh3 Kd3 Qxf2 b8Q Qd2+ Kc4 Qxa5 Qb7 Be6+ Qd5 Qa4+
>Kd3 Qa3+ Kc4 Bxd5+ exd5 Qxd6
>00:00:11.6	13.75	11	18315246	Bh3 Kd3 Qxf2 b8Q Qd2+ Kc4 Qxa5 Qb7 Be6+ Qd5 Qa4+
>Kd3 Qd1+ Kc4 Qe2+ Kd4 Be3+ Kc3 Bxd5 exd5 exd6
>00:00:13.7	14.10	12	21555471	Bh3
>00:00:44.5	M12	12	74559727	Bh3 Kd3 Qxf2 b8Q Bf1+ Kc3 Qe3+ Kb2 Bc4 Qf8+ Kxf8
>dxe7+ Kxe7 Ra7+ Kd6 Ra6+ Kc5 Ra5+ Kb6 Rb5+ Kxb5 e5 Qc1#

Here is CM9000 Analysis (SKR Personality) on a Pentium IV 1.8 GHz with 64 MB for
hashtables:

Time	Depth	Score	Positions	Moves
0:02	1/6	-10.78	285158		44...Bh3 45.Kd3 Qxf2 46.b8=Q Qd2+
					47.Kc4 Qc1+ 48.Kb3 Qb1+ 49.Kc4
					Bf1+ 50.Kc3 Qxb8 51.dxe7
0:04	1/7	-11.12	458870		44...Bh3 45.Rd5 Bf1+ 46.Rxf1 Qe3+
					47.Kd1 Qc1+ 48.Ke2 Qc2+ 49.Ke1
					Bg3+ 50.Rf2 Bxf2+ 51.Kf1 Bg3 52.Rd2
					Qxd2
0:08	1/8	-13.28	986427		44...Bh3 45.Kd3 Qxf2 46.b8=Q Bf1+
					47.Kc3 Qe3+ 48.Kb4 Qd4+ 49.Kb3
					Bc4+ 50.Ka4 Qd1+ 51.Kb4 Qb3+ 52.Kc5
					Be3+ 53.Kc6 Qxb8
0:25	1/9	-16.18	3381483		44...Bh3 45.Kd3 Qxf2 46.b8=Q Bf1+
					47.Kc3 Qe3+ 48.Kb4 Qd4+ 49.Kb3
					Bc1 50.Qf8+ Kxf8 51.dxe7+ Kxe7
					52.Ra7+ Ke6 53.Re7+ Kxe7
0:53	1/10	-Mate12	7626996		44...Bh3 45.Kd3 Qxf2 46.b8=Q Bf1+
					47.Kc3 Qe3+ 48.Kb4 Qd4+ 49.Kb3
					Bc1 50.Qf8+ Kxf8 51.dxe7+ Kxe7
					52.Ra7+ Ke6 53.Re7+ Kxe7 54.Kc2
					Qb2+ 55.Kd1 Qd2#
1:26	1/11	-Mate12	13013382	44...Bh3 45.Kd3 Qxf2 46.b8=Q Bf1+
					47.Kc3 Qe3+ 48.Kb4 Qd4+ 49.Kb3
					Bc1 50.Qf8+ Kxf8 51.dxe7+ Kxe7
					52.Ra7+ Ke6 53.Re7+ Kxe7 54.Kc2
					Qb2+ 55.Kd1 Qd2#

With the speed differences between the two machines (3 GHz and 1.8) I believe
CM9000 is a bit faster to see the mate.  But mate in 12 is seen, not 11.

Roy



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