CCRL 40/40
Downloads and Statistics
July 19, 2019
Testing summary:
Total: 1'068'538 games
played by 2'502 programs
146028 CPU days (X2 4600+)

White wins: 371'241 (34.7%)
Black wins: 276'263 (25.9%)
Draws: 421'034 (39.4%)
White score: 54.4%

Custom engine selection

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



CCRL 40/40 Rating List - Custom engine selection
1068538 games played by 2502 programs, run by 22 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 July 19, 2019 with Bayeselo based on 1'068'538 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/4040/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Dirty CUCUMBER 64-bit              2916  +14  -14  50.6%   -3.2  1570
  Dirty 30Apr2017 64-bit             2856  +15  -15  49.7%   +0.3  1482
  Dirty 3Nov2015 64-bit              2837  +17  -16  49.0%   +5.7  1181
  Dirty 10Apr2015 64-bit             2805  +24  -24  49.4%   +5.5   561
  Dirty 20Apr2013 64-bit             2769  +16  -16  48.5%   +9.7  1257
  Dirty 05Sep2012 64-bit             2754  +23  -23  53.0%  -19.2   616
  Dirty 23Mar2012 64-bit             2702  +31  -31  51.9%  -12.6   339
  Dirty 25Aug2011 64-bit             2690  +28  -28  52.8%  -17.7   394
  Dirty 25Aug2011 32-bit             2667  +23  -23  47.3%  +17.2   620
  Dirty 23Mar2012 32-bit             2657  +33  -33  51.5%   -9.9   301
  Dirty 24Apr2011 64-bit             2655  +22  -22  52.7%  -20.0   696
  Dirty 24Apr2011 32-bit             2613  +29  -29  46.6%  +22.8   387
  Dirty 6J-22                        2576  +23  -23  51.7%  -13.5   644
  Dirty 11D-27                       2560  +27  -27  46.3%  +23.2   458
  Dirty ACCA4 64-bit                 2554  +33  -33  51.8%  -12.4   306
  Dirty ACCA4 32-bit                 2542  +33  -33  47.2%  +20.4   302
  Dirty 14M-22                       2467  +33  -33  49.5%   +2.8   303
  Dirty ACCA3                        2386  +29  -29  46.3%  +24.4   393
  Dirty 0.99 OW5                     2381  +24  -24  46.5%  +21.9   578
  Dirty 0.99z                        2352  +34  -34  49.3%   +3.9   300
  Dirty 0.99n                        2320  +30  -29  52.1%  -14.3   404

Created in 2005-2013 by CCRL team
Last games added on July 19, 2019