CCRL 40/40
Downloads and Statistics
November 8, 2019
Testing summary:
Total: 1'097'085 games
played by 2'561 programs
149942 CPU days (X2 4600+)

White wins: 380'560 (34.7%)
Black wins: 282'789 (25.8%)
Draws: 433'736 (39.5%)
White score: 54.5%

Custom engine selection

Comparing 21 engines!
21 selected engines played 0 games with each other



CCRL 40/40 Rating List - Custom engine selection
1097085 games played by 2561 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 8, 2019 with Bayeselo based on 1'097'085 games
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/4040/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Dirty CUCUMBER 64-bit              2918  +14  -14  49.9%   +1.0  1691
  Dirty 30Apr2017 64-bit             2857  +15  -15  49.7%   +0.4  1482
  Dirty 3Nov2015 64-bit              2838  +17  -17  49.0%   +5.4  1181
  Dirty 10Apr2015 64-bit             2806  +24  -24  49.4%   +5.2   561
  Dirty 20Apr2013 64-bit             2770  +16  -16  48.5%   +9.1  1257
  Dirty 05Sep2012 64-bit             2754  +23  -23  53.0%  -18.8   616
  Dirty 23Mar2012 64-bit             2702  +31  -31  51.9%  -12.2   339
  Dirty 25Aug2011 64-bit             2691  +28  -28  52.8%  -17.8   394
  Dirty 25Aug2011 32-bit             2667  +23  -23  47.3%  +17.8   620
  Dirty 23Mar2012 32-bit             2657  +33  -33  51.5%   -9.2   301
  Dirty 24Apr2011 64-bit             2654  +22  -21  52.5%  -17.7   706
  Dirty 24Apr2011 32-bit             2614  +29  -29  46.6%  +22.4   387
  Dirty 6J-22                        2577  +23  -23  51.7%  -14.1   644
  Dirty 11D-27                       2560  +27  -27  46.3%  +23.5   458
  Dirty ACCA4 64-bit                 2552  +33  -33  51.0%   -7.4   314
  Dirty ACCA4 32-bit                 2547  +33  -33  47.9%  +15.1   306
  Dirty 14M-22                       2467  +32  -32  49.5%   +2.7   319
  Dirty ACCA3                        2387  +29  -29  46.3%  +24.1   393
  Dirty 0.99 OW5                     2382  +24  -24  46.5%  +21.4   578
  Dirty 0.99z                        2353  +34  -34  49.3%   +3.6   300
  Dirty 0.99n                        2321  +30  -30  52.1%  -14.4   404

Created in 2005-2013 by CCRL team
Last games added on November 8, 2019