Author: Paul Byrne
Date: 00:17:49 07/02/01
Go up one level in this thread
On July 01, 2001 at 00:25:52, Angrim wrote: >On June 30, 2001 at 06:47:19, leonid wrote: > >>Hi! >> >>If you are in mood to solve some mate position, look into this: >> >>[D]Q2nkn1q/1Q1rr1q1/2QQqq2/b2Qq2b/2NqQN2/2q2Q2/1q1BB1Q1/q2RKR1Q w - - >> >>Please indicate your result. >> >>Try to indicate all basic parameters about your hardware and name your program. >>If your program have some Web Site, please say its address. If something new was >>done in order to speed your mate solving brain, feel you free to describe your >>improvement. At least one person will read it with big interest for sure. >> >>Thanks, >>Leonid. > >Hey, looks like I got the first reply this time :) >hardware: Athlon 650mhz >heuristic: PN^2 with transpositions > >proved that move f3xh5 wins, 12 turns >PN2:17137399 evals, 368084 expands, 148.10 seconds > >Angrim G2K's PN search says: : i=203538 n=6559485 p=0 d=1000000000 t=97.170 : Qfxh5 wins! Which, if you do the math, shows how horribly inefficient G2K is :) About 67K nps on a 1.2 GHz athlon... G2K's PN2 search takes 198.28 seconds and 13965004 nodes to see it. -paul
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