Author: Bruce Humphrey
Date: 20:14:28 07/31/04
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On July 31, 2004 at 16:53:46, Eduard Nemeth wrote: >Question: > >Shredder 8 have 2818 SSDF Elo on AMD 1,2 GHz, right? Yes! > >Which SSDF-ELO have then Shredder 8 on Dual Xeon 3 GHz? > >2900? Or more? > >:-)) > >Eduard Yes, a 2900 that is blind to the fact that a rook locked in by pawns is worth 0 (or maybe 1) and not 4.88 at depth 24 (I'm sure during the game my Shredder was evaluating 4.6...) as Shredder evaluates in end position in game 1. Well, other software gives even bigger advantage to white! During the game I thought black was going to win the moment Kiriakov plays b5... he did mention just the move before "b5 only plan. White can block with Rb5 and obvious draw", but Shredder is blind to the fact that yes, it wins 1 pawn but in exchange of losing his rooks mobility. The position is really complicated around move 82... what pawn does black take, central or h (via Nf2+-Nxh3)? How does this affect everything? Well, humans (and even more at 6am local time in Krasnoyarsk and with not much time left) tend to have trouble in the complications. A wonderful draw by GM Kiriakov. This makes it (as far as I know) Shredder 8 vs Kiriakov +0-0=4 I'm counting Smursky's games too... all 4 games vs dual or better machines. Maybe next one to try should use Tiger or Hiarcs. Or even Gambit Tiger or Junior set in Attack mode. I personally would love it to be Rebel 12. :-) Here is the position tested in various programs... Very curious is the eval difference between hiarcs 9 for PC and Hiarcs 9.46 for Palm!!! I thought they where almost exactly the same, but obviously, 9.46 has been tweaked a lot (in knowledge ?). That, usually, should be for good, but it seems not for this position... comp depth eval -------- ----------- ------ Fritz 8 depth 20/20 4.38 Ruffian ca71 depth 18 4.67 Shredder 8 depth 25 4.89 Rebel 12 depth 20 4.97 wCrafty 19 ca71 depth 18 5.08 Gothmog 1 beta7 depth 17 5.40 Genius 7 depth 17-28 5.51 Hiarcs 9 depth 16/33 5.99 !! Dragon ca71 depth 12 6.02 Crafty 19.14 cb depth 18/25 6.38 Junior 8 depth 24 6.39 Tiger 15 ca71 depth 20 6.52 Tiger 14 cb depth 17 6.73 Hiarcs 9.46 depth 15 7.69 !! (353sec taken)
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