Author: Stuart Cracraft
Date: 21:50:36 03/03/06
Go up one level in this thread
On March 03, 2006 at 22:39:47, Lar Mader wrote: >Ok, I know this topic has been discussed a lot (beaten to death?!), but I am >still curious about this move: > >Game 2, IBM Kasparov vs. Deep Blue Rematch >Deep Blue played > 36.axb5 > >I know that the move 37.Be4 is a move that is found by some current chess >engines. > >But this 36.axb5, to my knowledge, is never selected by current chess engines. > Nothing for me but that doesn't say much considering my own program: .sd 99 maxdepth = 99 maxtime = 9999999 timed = 0 .ts position file? [wac.epd] tests.epd # of test positions to test? 1 maxtime = 9999999 Interrupt current ply and return move at timeout Testsuite: Tests/tests.epd 1 positions *** Problem Solution(s): axb5 (bm) BR ** BR ** BQ ** BK ** ** -- ** -- ** -- BP -- BP ** -- BB -- BP -- BP ** BP ** WP BP WP ** -- WP WP BP ** -- ** -- ** ** -- WP -- ** -- ** WP WR ** WB ** -- WQ WP ** WR -- ** -- ** -- WK -- mv 1 stage 0, white to move, computer plays white hash=13ae1dd545f1642d pawnhash=38fa81d61563fda8 0 0 0 0 0 0 Alpha=1457 Beta=2258 Maxdepth=99 MaxTime=9999999 xboard=0 Itr/Max Mv Score Time Nodes PV 1/ 4< a4b5 1457 0.00 37 a4b5 1/ 4 g1h2 288 0.01 82 g1h2 2/ 6> g1h2 688 0.02 269 g1h2 e5e4 g2g3 2/ 7 a4b5 689 0.02 388 a4b5 a6b5 a2a7 3/ 9 a4b5 698 0.05 1010 a4b5 a6b5 a2a7 e8f8 4/10 f2b6 349 0.10 2932 f2b6 d6c7 b6f2 5/13 f2b6 629 0.25 8081 f2b6 d6c7 b6e6 e8e6 f5e6 b5a4 a2a4 c7b6 g1h2 6/14 f2b6 720 0.54 18844 f2b6 d6c7 b6e6 e8e6 f5e6 c8d8 a4b5 7/16 f2b6 848 1.74 60879 f2b6 d6b8 b6e6 e8e6 f5e6 b8a7 g1h2 c8f8 a4b5 8/19 f2b6 1001 3.19 115760 f2b6 d6c7 b6e6 e8e6 f5e6 c7b6 g1h2 c8e8 a4b5 a6b5 a2a8 9/21 f2b6 1175 8.05 308035 f2b6 e8e7 a4b5 c8b8 b6c6 b8c8 g1h2 c8e8 10/21 f2b6 1125 16.45 639593 f2b6 d6c7 b6b7 e8d8 a4b5 c8b8 b7c6 b8b5 a2a6 a8a6 a1a6 b5d5 c6c4 11/23 f2b6 1415 37.50 1488255 f2b6 d6c7 b6e6 e8e6 f5e6 a8b8 a4b5 a6b5 c2g6 c7d6 a2a7 12/27 f2b6 1450 91.88 3725097 f2b6 e8f8 a4b5 c8b8 b6a5 d6c5 b4c5 f8c5 g1h2 b8b5 a5a4 c5d5 a1d1 13/33 f2b6 1499 208.56 8436384 f2b6 d6c7 b6e6 e8e6 f5e6 a8b8 14/ People have consistently underestimated Deep Bluer's evaluation function. Bob Hyatt can speak more to your concerns than any other person on this forum. Stuart
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