Author: Uri Blass
Date: 02:45:24 06/16/02
Go up one level in this thread
On June 16, 2002 at 01:37:46, Peter McKenzie wrote: >On June 16, 2002 at 00:15:48, Christophe Theron wrote: > >>On June 15, 2002 at 21:20:17, Peter McKenzie wrote: >> >>>On June 15, 2002 at 21:14:39, Mike S. wrote: >>> >>>>P3/700, 96 MB hash, CB-Tigers >>>> >>>>Analysis by Gambit Tiger 2.0: >>>> >>>>1...Be6 2.a4 Bd7 3.Rd1 Bf8 4.Qf4 Bg7 >>>> = (-0.20) Depth: 7 00:00:00 70kN >>>> = (-0.02) Depth: 7 00:00:01 310kN >>>>1...Bd7 2.Rd1 Bc5 3.Qf4 Be6 4.Nf3 >>>> = (-0.08) Depth: 7 00:00:02 366kN >>>>1...f6 2.f4 Bf5 3.Bxf5 Nf7 4.Rxe8+ Rxe8 5.Qh4 gxf5 6.Nf3 Bc5+ 7.Kf1 Kg7 8.Qg3+ >>>>Kf8 >>>> = (-0.10) Depth: 7 00:00:03 577kN >>>> = (0.08) Depth: 11 00:00:32 5336kN >>>>1...Be6 2.Qh4 Rac8 3.Nf1 Qb6 4.Ne3 Bb8 5.Bd2 Nc4 6.Nxc4 dxc4 >>>> = (0.02) Depth: 11 00:01:43 16645kN >>>>1...b5 2.Rd1 b4 3.Nb1 Rb8 4.Ba4 Nc6 5.cxb4 Rxb4 6.Bb3 d4 >>>> = (-0.02) Depth: 11 00:02:54 28306kN >>>> = (-0.02) Depth: 11 00:02:54 28306kN >>>> >>>>----- >>>> >>>>New game >>>>r1b1r1k1/ppq2p1p/3b2pQ/3pn3/8/2P4P/PPBN1PP1/R1B1R1K1 b - - 0 1 >>>> >>>>Analysis by Chess Tiger 14.0: >>>> >>>>1...Bd7 2.Rd1 f5 3.Bb3 Bc6 4.Nf1 Nf7 >>>> ³ (-0.26) Depth: 6 00:00:00 67kN >>>> = (0.02) Depth: 7 00:00:00 118kN >>>>1...Be6 2.Rd1 f6 3.Nb3 Nf7 4.Qh4 Bh2+ 5.Kh1 Be5 6.Be3 >>>> = (-0.14) Depth: 7 00:00:02 391kN >>>> = (0.00) Depth: 9 00:00:08 1256kN >>>>1...b5 2.Rd1 b4 3.Nb1 Ba6 4.Qg5 d4 5.Ba4 Be7 6.Qf4 dxc3 7.Bxe8 Rxe8 8.bxc3 bxc3 >>>> = (-0.04) Depth: 9 00:00:23 3574kN >>>> = (0.02) Depth: 10 00:00:35 5100kN >>>>1...Be6 2.Rd1 b5 3.Nf1 f5 4.Ne3 Nc4 5.a4 Bf8 6.Qg5 Be7 >>>> = (-0.02) Depth: 10 00:00:39 5707kN >>>> = (0.02) Depth: 11 00:01:13 11074kN >>>>1...f6 2.Qh4 Qf7 3.f4 Nc6 4.Rxe8+ Qxe8 5.Nf3 Bd7 6.Qf2 Qf7 7.Be3 Re8 >>>> = (0.00) Depth: 11 00:02:12 20588kN >>>>1...f5 2.f4 Bf8 3.Qh4 Be7 4.Qg3 Nc4 5.Nxc4 dxc4 6.Be3 Bd7 7.Qf3 >>>> = (-0.02) Depth: 11 00:02:55 26127kN >>>> = (-0.02) Depth: 11 00:02:55 26127kN >>>> >>>>IOW, not in 3 minutes on this computer. >>> >>>Thanks Mike, the result was as I suspected :-) >> >> >> >>I don't know what you suspected but I have news for you: the latest Chess Tiger >>finds Bf5 (on fail high) in 64 seconds on my P4-1.6GHz (96Mb hash). >> >>Just out of curiosity: what did you suspect??? > >I suspected that Tiger would be a bit slow on this position (relative to the >other strong programs that is). I figured its pruning would have some trouble >with this particular case... Tiger is fast relative to movei but based on results of other programs like crafty even 64 seconds on p4-1.6Ghz are not good results. movei(p800 32 Mbytes hash) needs more than 11 minutes to fail high and more than 12 minutes to solve the fail high. The problem with Bf5 is the hardest problem because programs have to see the tactics when in other cases they may be lucky to play the right move because of evaluation that is 0.0x pawns better. 9 48 20139 28631591 c8e6 d2f1 e5c4 f1e3 d6f4 h6h4 f4e3 f2e3 a8c8 9 48 28397 40711578 c8e6 d2f1 e5c4 f1e3 d6f4 h6h4 f4e3 f2e3 a8c8 10 37 48594 68034397 c8e6 d2f1 e5c4 c2d3 f7f6 d3c4 d5c4 e1d1 e6f5 c1e3 10 38 69044 96771609 c8f5 10 131 74493 104896803 c8f5 c2b3 e5g4 e1e8 a8e8 h3g4 e8e1 d2f1 f5d3 g2g3 d6g3 g1g2 d3f1 g2g1 10 131 76440 107797127 c8f5 c2b3 e5g4 e1e8 a8e8 h3g4 e8e1 d2f1 f5d3 g2g3 d6g3 g1g2 d3f1 g2g1 11 137 90579 129715989 c8f5 c2b3 e5g4 e1e8 a8e8 h3g4 e8e1 d2f1 f5d3 g2g3 d6g3 g1g2 d3f1 g2f3 f1e2 f3g2 g3e5 b3d5 e2g4 11 137 98319 141827715 c8f5 c2b3 e5g4 e1e8 a8e8 h3g4 e8e1 d2f1 f5d3 g2g3 d6g3 g1g2 d3f1 g2f3 f1e2 f3g2 g3e5 b3d5 e2g4 Uri
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.