Author: Mike Byrne
Date: 17:48:29 10/21/03
Go up one level in this thread
On October 21, 2003 at 14:09:10, Jouni Uski wrote: >[D] 2r1N2B/PP1RqP1Q/K2nnq1R/Npk3q1/3q1qQr/2qbbQ2/1P1Q3q/1q1B1Q2 w - - > >It's interesting to test this under Fritz8 GUI with 2,4 GHz PC: > >Fritz: no solution in 5 minutes (depth still 1 ply!) >Yace: no solution in 5 minutes >Ruffian: 26 seconds to bxc8R and 10x announcement >Shredder: crash after 2 minutes (in shredder704.dll)! > >Finally the truth = analysis by ChestUCI Ver 2.6: > >1.Qxc3+ Qxc3 2.bxc8Q+ Nxc8 3.Qc6+ Kb4 4.Qxc3+ Qxc3 5.Bxc3+ Kc5 6.Nb3+ Kc6 >7.Rxe6+ Qed6 8.Rexd6+ Nxd6 9.a8Q+ Nb7 10.Qxb7# > +- (#10) Depth: 10 00:23:02 >1.bxc8R+ Nxc8 2.Qc6+ Kb4 3.Qcxc3+ Qxc3 4.Qxc3+ Qxc3 5.Bxc3+ Kc5 6.Nb3+ Kc6 >7.Rxe6+ Qed6 8.Rexd6+ Nxd6 9.a8Q+ Nb7 10.Qxb7# > +- (#10) Depth: 10 00:23:02 >1.bxc8Q+ Nxc8 2.Qc6+ Kb4 3.Qcxc3+ Qxc3 4.Qxc3+ Qxc3 5.Bxc3+ Kc5 6.Nb3+ Kc6 >7.Rxe6+ Qed6 8.Rexd6+ Nxd6 9.a8Q+ Nb7 10.Qxb7# > +- (#10) Depth: 10 00:23:02 > >Jouni Dell Axim Rom 05 WM 2003 (PPC 2003) Pocket OC Ruffian 1.0.4 ( == PC ver 1.0.1) 16 MB Hash bxc8R solution 6 ply about 13 minutes 30 seconds btw -- I also tried it with PC Ruffian 1.0.1 16 MB hash on my Dell 530 1.7 Ghz P4 pv scores match and total nodes search were very close ( exact node count not vissible - around 25M nodes )same solution in 39 seconds - Ruffian on my My PC (1.7 Ghz )is about 20x of the Dell Axim at 472 Mhz. Ruffian on a 1.2 Ghz Athlon is at 2678 SSDF -- so that may put a Ruffian on a Dell oc to 472 Mhz at 2478 or perhaps slightly less say 2450 (assuming 2x speed is ~ 50 points). Accoding to SSDF, Shredder 7.0 is at 2771 on the same PC - so it may put PF2 at on a Dell Axim oc to 472 Mhz at around 2550 SSDF.
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