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CCRL 40/40 Rating List - Custom engine selection
806640 games played by 2097 programs, run by 21 testers
Ponder off, General books (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern Intel CPU.
Computed on March 17, 2018 with Bayeselo based on 806'640 games
Tested by CCRL team, 2005-2018, http://computerchess.org.uk/ccrl/4040/
Rank Engine Elo + - Score AvOp Games
1 Atlas 3.91 64-bit 2879 +26 -27 48.6% +8.9 431
Atlas 3.80 64-bit 2849 +14 -14 48.9% +7.1 1666
Atlas 3.70em 64-bit 2788 +22 -22 48.8% +7.4 688
Atlas 3.60 64-bit 2688 +22 -23 48.9% +7.2 645
Atlas 3.50 64-bit 2659 +31 -31 49.0% +5.8 348
Atlas 3.25 64-bit 2569 +28 -27 50.7% -1.7 444
Atlas 3.14b 32-bit 2400 +25 -25 49.2% +6.2 551