CCRL 40/40
Downloads and Statistics
November 16, 2019
Testing summary:
Total: 1'098'633 games
played by 2'562 programs
150143 CPU days (X2 4600+)

White wins: 380'990 (34.7%)
Black wins: 283'127 (25.8%)
Draws: 434'516 (39.6%)
White score: 54.5%

Custom engine selection

Comparing 20 engines!
20 selected engines played 0 games with each other



CCRL 40/40 Rating List - Custom engine selection
1098633 games played by 2562 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 CPU.
Computed on November 16, 2019 with Bayeselo based on 1'098'633 games
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/4040/

Rank               Engine                Elo   +    -   Score  AvOp  Games
EXchess 7.97b 64-bit 4CPU          2972  +17  -18  47.4%  +18.4  1017
  EXchess 7.88b 64-bit 4CPU          2958  +29  -29  45.4%  +29.4   356
  EXchess 7.51b 64-bit 4CPU          2940  +33  -33  50.7%   -3.0   276
  EXchess 7.71b 64-bit 4CPU          2933  +28  -28  53.3%  -23.2   403
  EXchess 7.97b 64-bit               2894  +12  -13  48.3%  +10.5  2067
  EXchess 7.88b 64-bit               2870  +25  -25  50.0%   +0.2   472
  EXchess 7.18b 64-bit 4CPU          2865  +33  -33  47.3%  +16.9   292
  EXchess 7.92b 64-bit               2856  +22  -22  50.5%   -3.6   631
  EXchess 7.71b 64-bit               2853  +22  -22  50.4%   -3.3   669
  EXchess 7.51b 64-bit               2816  +27  -27  51.1%   -6.5   439
  EXchess 7.31b 64-bit               2777  +27  -28  46.3%  +24.4   410
  EXchess 7.18b 64-bit               2775  +23  -23  50.4%   -3.9   607
  EXchess 7.26b 64-bit               2772  +27  -27  46.4%  +21.7   440
  EXchess 7.11b 64-bit               2743  +31  -31  50.3%   -2.0   324
  EXchess 7.03b 64-bit               2719  +32  -32  50.0%   -1.0   315
  EXchess 6.50b 64-bit               2714  +32  -32  50.2%   -2.2   317
  EXchess 6.71b 64-bit               2683  +32  -32  46.4%  +22.8   316
  EXchess 6.10b 32-bit               2518  +32  -33  49.4%   +4.2   314
  EXchess 5.01b 32-bit               2250  +29  -29  46.5%  +21.3   401
  EXchess 5.04b 64-bit               2188  +29  -29  47.1%  +26.9   424

Created in 2005-2013 by CCRL team
Last games added on November 16, 2019