Games: PGN
Test setup: details
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CCRL 40/40 Rating List - Custom engine selection
798040 games played by 2050 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 February 24, 2018 with Bayeselo based on 798'040 games
Tested by CCRL team, 2005-2018, http://computerchess.org.uk/ccrl/4040/
Engine Elo + - Score AvOp Games
Ethereal 9.00 64-bit 2963 +21 -21 46.3% +23.8 695
Ethereal 8.62 64-bit 2882 +24 -24 47.9% +13.8 545