Author: Djordje Vidanovic
Date: 05:51:19 01/30/04
Go up one level in this thread
On January 29, 2004 at 03:02:19, m.d.hurd wrote: >On January 28, 2004 at 22:31:15, K. Burcham wrote: > >> >> [D] 3b4/p3P1q1/P1n2pr1/4p3/2B1n1Pk/1P1R4/P1p3KN/1N6 w - - >> >>I was looking over some old test positions. >>Here is a position I ran on dual machine compared to single. >>Mate in 15. Big difference in search time and total nodes to find mate. >> >>Shredder 7.04 Deep Shredder Paderborn >>2210 mhz xp 2x1533 mhz AMD mp >>480 kns 600 kns >>15/39 14.01 >>2.55 5.08 >>84,384,848 186.186.108 >> >> >>Shredder 7.04 >> >> 14/43 1:45 -6.65-- 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 >>6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 12.Rd3+ >>(51.368.860) 485.2 >> 14/44 2:39 -7.15-- 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 >>6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 12.Rd3+ >>(76.639.969) 479.7 >> 14/44 2:39 +0.11 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 >>6.Rd5+ Kb6 7.Rb5+ Kxa6 8.Rb8+ Ka5 9.exd8Q+ Nxd8 10.Rb5+ Ka6 11.Rb8+ Ka5 12.Rb5+ >>Ka6 13.Rb8+ Ka5 14.Rb5+ (76.717.584) 479.7 >> 15/39 2:55 +M15++ 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 >>6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 12.Rd3+ Kf4 >>13.Rf3+ Kg5 14.Rf5+ (84.384.848) 481.5 >> >> >>Deep Shredder Paderborn >> >>14.01 4:57 +0.09++ 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 >>6.Rd5+ Kb6 7.Rb5+ Kxa6 8.Rb4+ Ka5 9.Rb5+ Ka6 10.Rb4+ Ka5 11.Rb5+ Ka6 12.Rb4+ >>(178.985.434) 601.4 >> 14.01 5:08 +M15++ 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 >>6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 12.Rd3+ Kf4 >>13.Rf3+ Kg5 14.Rf5+ (186.186.108) 602.9 >>best move: Rd3-h3 time: 8:32.906 min n/s: 597.997 CPU 199.7% nodes: >>306.716.420 > > >For comparison : > >New game >3b4/p3P1q1/P1n2pr1/4p3/2B1n1Pk/1P1R4/P1p3KN/1N6 w - - 0 1 > >Analysis by Shredder 8: > >1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 >8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 12.Rd3+ Kf4 13.Rf3+ Kg5 14.Rf5+ >Kh4 15.Rh5# >+- (#15) Depth: 21/39 00:00:30 11673kN >(Hurd, UK 29.01.2004) > >New game >3b4/p3P1q1/P1n2pr1/4p3/2B1n1Pk/1P1R4/P1p3KN/1N6 w - - 0 1 > >Analysis by Shredder 8 Gambit: > >1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 >8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 12.Rd3+ Kf4 13.Rf3+ Kg5 14.Rf5+ >Kh4 15.Rh5# >+- (#15) Depth: 20/45 00:00:32 11825kN >(Hurd, UK 29.01.2004) > >Athlon 2400XP 256mb hash. > >Regards > >Mike Something strange here, Mike. My machine is only slightly faster than yours, but Shredder 7.04 does much better on this position. Take a look (are your settings right, because Shredder 7.04 finds the mate on ply 14/40, while yours doesn't -- goes to ply 15/39?): New game 3b4/p3P1q1/P1n2pr1/4p3/2B1n1Pk/1P1R4/P1p3KN/1N6 w - - 0 1 Analysis by Shredder 7.04: 1.e8Q Rxg4+ 2.Nxg4 -+ (-11.71) Depth: 2/12 00:00:00 1.e8Q cxb1Q 2.Qxc6 Qxa2+ 3.Kh1 -+ (-11.67) Depth: 2/13 00:00:00 1.Rh3+ Kg5 2.e8Q cxb1Q 3.Qxc6 Qxa2+ 4.Kf3 -+ (-11.01) Depth: 2/13 00:00:00 1.Rh3+ Kg5 2.Nf3+ Kxg4 3.exd8Q -+ (-10.66) Depth: 2/13 00:00:01 1.Rh3+ Kg5 2.e8Q cxb1Q 3.Qxc6 Qxa2+ 4.Kf3 -+ (-10.66) Depth: 2/13 00:00:01 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.exd8Q -+ (-10.41) Depth: 3/13 00:00:01 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.exd8Q -+ (-9.91) Depth: 3/13 00:00:01 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.exd8Q+ Nxd8 -+ (-9.43) Depth: 3/13 00:00:01 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.exd8Q+ Nxd8 -+ (-9.43) Depth: 4/13 00:00:01 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.exd8Q+ Nxd8 -+ (-7.72) Depth: 5/13 00:00:01 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.exd8Q+ Nxd8 -+ (-7.72) Depth: 5/18 00:00:01 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.exd8Q+ Nxd8 6.Rf1 cxb1Q -+ (-7.97) Depth: 6/22 00:00:01 21kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.exd8Q+ Nxd8 6.Rf1 cxb1Q -+ (-8.47) Depth: 6/22 00:00:01 27kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.exd8Q+ Kc5 6.Nc3 Rxg4+ 7.Nxg4 -+ (-8.47) Depth: 6/22 00:00:01 27kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.exd8Q+ Nxd8 6.Rd3+ Kc5 7.Rh3 cxb1Q -+ (-8.72) Depth: 7/23 00:00:01 70kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.exd8B+ Nxd8 8.Rb5+ Kxa6 -+ (-7.67) Depth: 7/23 00:00:01 71kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kc8 9.e8Q cxb1Q 10.Rxg7 Qxa2+ 11.Kf1 Qxh2 -+ (-7.02) Depth: 8/25 00:00:01 106kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kc8 9.e8Q cxb1Q 10.Rxg7 Qxa2+ 11.Kf1 Rxg7 12.Qxc6+ Kb8 -+ (-6.38) Depth: 8/25 00:00:01 106kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.e8R cxb1Q -+ (-6.38) Depth: 8/26 00:00:02 195kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.e8R cxb1Q 9.Rb7+ Kd6 -+ (-6.63) Depth: 9/30 00:00:03 424kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.exd8Q+ Nxd8 10.Rxg7 cxb1Q 11.Rxg6 Qxa2+ 12.Kf3 -+ (-6.39) Depth: 9/30 00:00:03 427kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.exd8Q+ Nxd8 10.Nf3 cxb1Q -+ (-6.64) Depth: 10/34 00:00:04 969kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.exd8Q+ Nxd8 10.Nf3 cxb1Q -+ (-7.14) Depth: 10/34 00:00:04 1453kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.exd8Q+ Nxd8 10.Rxg7 Rxg7 -+ (-7.49) Depth: 10/34 00:00:05 1875kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 -+ (-6.10) Depth: 11/34 00:00:06 2245kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 -+ (-6.10) Depth: 11/36 00:00:06 3174kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 12.Nf3 cxb1Q -+ (-6.35) Depth: 12/37 00:00:13 6587kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 12.Nf3 cxb1Q -+ (-6.85) Depth: 12/37 00:00:17 8847kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 12.Nf1+ Kf4 -+ (-6.20) Depth: 12/37 00:00:17 8851kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 12.Nf1+ Kf4 13.Rb5 cxb1Q -+ (-6.45) Depth: 13/40 00:00:33 17171kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kxa6 8.Rb8+ Ka5 9.exd8Q+ Nxd8 10.Rb5+ Ka6 11.Rb8+ Ka5 12.Rb5+ Ka6 13.Rb8+ Ka5 14.Rb5+ = (0.11) Depth: 13/40 00:00:33 17185kN 1.Rh3+ Kg5 2.Rh5+ Kf4 3.Rf5+ Ke3 4.Rf3+ Kd4 5.Rd3+ Kc5 6.Rd5+ Kb6 7.Rb5+ Kc7 8.Rb7+ Kd6 9.e8N+ Kc5 10.Rb5+ Kd4 11.Rd5+ Ke3 12.Rd3+ Kf4 13.Rf3+ Kg5 14.Rf5+ +- (#15) Depth: 14/40 00:00:38 19994kN (Vidanovich, University of Nis 30.01.2004)
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.