Author: m.d.hurd
Date: 00:02:19 01/29/04
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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
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