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Subject: Re: test position

Author: John Merlino

Date: 13:22:00 07/20/05

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On July 19, 2005 at 18:54:48, Vincent Lejeune wrote:

>[d]2rq2k1/3rnpp1/4p2n/p1p1P3/PpP5/5NQ1/1P1N1PK1/3R3R w - - 0 36
>
>How much time to find Rxh6! and how much time to get >+1 eval ?

CM9_R1 on an AMD 2500 is faster than other engines to find the move (1 second!),
but does not give a >+1 score in under 10 minutes because it is unable to find
39.Rh4 (or Rh5):

Time	Depth	Score	Positions	Moves
0:00	1/5	-1.47	15723		36.b3 Nef5 37.Qf4 Rd3 38.Rde1
0:00	1/5	-1.27	21056		36.Kf1 Nef5 37.Qf4 Nd4 38.Ne4 Nxf3
					39.Rxd7 Qxd7 40.Qxf3 Qxa4
0:00	1/6	-1.27	34136		36.Kf1 Nef5 37.Qf4 Nd4 38.Ne4 Nxf3
					39.Rxd7 Qxd7 40.Qxf3 Qxa4
0:00	1/7	-1.64	125451		36.Kf1 Ng6 37.Qh2 Rd3 38.Ke2 Qd7
					39.Ne4 Rxd1 40.Rxd1 Qxa4
0:01	1/8	-1.56	354657		36.Kf1 Ng6 37.b3 Rd3 38.Ke1 Qc7
					39.Kf1 Qb7
0:01	1/8	-0.99	483293		36.Rxh6 Nf5 37.Rdh1 Nxh6 38.Rxh6
					Rxd2 39.Nxd2 Qxd2 40.Rh3 Re8 41.Qh4
					Kf8 42.Rf3
0:02	1/9	-0.65	736747		36.Rxh6 Nf5 37.Rdh1 Nxh6 38.Rxh6
					Rxd2 39.Nxd2 Qxd2 40.Rh1 Re8 41.Qh4
					Kf8 42.Qh8+ Ke7 43.Qxg7 Qxb2 44.Qf6+
					Kd7 45.Qxf7+ Re7
0:04	1/10	-0.36	1292897		36.Rxh6 Nf5 37.Rdh1 Nxh6 38.Rxh6
					Rxd2 39.Nxd2 Qxd2 40.Rh3 Re8 41.Qh4
					Kf8 42.Qh8+ Ke7 43.Qxg7 Qf4 44.Rf3
0:08	1/11	-0.07	2847171		36.Rxh6 Nf5 37.Rdh1 Nxh6 38.Rxh6
					Rxd2 39.Nxd2 Qxd2 40.Rh3 Re8 41.Qh4
					Qh6 42.Qxh6 gxh6 43.Rxh6 Rd8 44.b3
					Rd2 45.Kf3
0:16	1/12	-0.13	5433953		36.Rxh6 Nf5 37.Rdh1 Nxh6 38.Rxh6
					Rxd2 39.Nxd2 Qxd2 40.Rh5 g6 41.Rh1
					Kg7 42.Qh4 Rg8 43.Qf6+ Kf8 44.Rh7
					Qd7 45.Kg1
0:42	1/13	0.08	14932431	36.Rxh6 Nf5 37.Rdh1 Nxh6 38.Rxh6
					Rxd2 39.Nxd2 Qxd2 40.Rh5 g6 41.Rh3
					Qd4 42.Rh4 Qd7 43.Qh2 Qb7+ 44.f3
					Kf8 45.Rh8+ Ke7 46.Qh4+ Kd7 47.Rh7
1:24	2/14	0.00	29376771	36.Rxh6 Nf5 37.Rdh1 Nxh6 38.Rxh6
					Rxd2 39.Nxd2 Qxd2 40.Rh5 g6 41.Rh3
					Qd4 42.Qh2 Qg4+ 43.Kh1 Qe4+ 44.Kg1
					Qg4+ 45.Kh1
4:51	3/15	0.22	103485762	36.Rxh6 Nf5 37.Rdh1 Nxh6 38.Rxh6
					Rxd2 39.Nxd2 Qxd2 40.Rh5 g6 41.Rh3
					Kg7 42.Qh4 Rg8 43.Qf6+ Kf8 44.Rh7
					Qd7 45.Qf3 Qe8 46.b3 g5 47.Kf1

jm



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