CCRL 40/40
Downloads and Statistics
August 24, 2019
Testing summary:
Total: 1'077'764 games
played by 2'521 programs
147276 CPU days (X2 4600+)

White wins: 374'201 (34.7%)
Black wins: 278'337 (25.8%)
Draws: 425'226 (39.5%)
White score: 54.4%

Custom engine selection

Comparing 3 engines!
3 selected engines played 0 games with each other



CCRL 40/40 Rating List - Custom engine selection
1077764 games played by 2521 programs, run by 23 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 August 24, 2019 with Bayeselo based on 1'077'764 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/4040/

Rank              Engine                Elo   +    -   Score  AvOp  Games
Eeyore 1.52 64-bit                2445  +18  -18  47.7%  +14.9  1123
  Eeyore 1.52 32-bit                2405  +22  -23  49.9%   +1.0   668
  Eeyore 1.50                       2343  +26  -26  52.1%  -15.4   512

Created in 2005-2013 by CCRL team
Last games added on August 24, 2019