CCRL 40/40
Downloads and Statistics
June 15, 2019
Testing summary:
Total: 1'059'406 games
played by 2'473 programs
144801 CPU days (X2 4600+)

White wins: 368'317 (34.8%)
Black wins: 274'199 (25.9%)
Draws: 416'890 (39.4%)
White score: 54.4%

Custom engine selection

Comparing 33 engines!
33 selected engines played 300 games with each other



CCRL 40/40 Rating List - Custom engine selection
1059406 games played by 2473 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 June 15, 2019 with Bayeselo based on 1'059'406 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/4040/

Rank               Engine                Elo   +    -   Score  AvOp  Games
GreKo 2018.08 64-bit               2720  +22  -22  49.0%   +7.4   690
  GreKo 2018.12 64-bit               2712  +28  -28  50.5%   -3.4   395
  GreKo 2018 64-bit                  2710  +14  -14  48.1%  +12.8  1876
  GreKo 2018.07 64-bit               2707  +16  -16  47.7%  +16.1  1359
  GreKo 2018.02 64-bit               2649  +24  -24  51.7%  -11.4   585
  GreKo 2018.01 64-bit               2645  +27  -27  51.2%  -10.6   454
  GreKo 2015-ML 64-bit               2611  +25  -25  49.2%   +3.8   501
  GreKo 2015 64-bit                  2609  +22  -22  51.2%  -11.0   680
  GreKo 12.8 64-bit                  2604  +30  -30  50.7%   -7.0   358
  GreKo 2016 64-bit                  2592  +21  -22  47.6%  +17.2   697
  GreKo 12.1 64-bit                  2587  +31  -30  52.2%  -17.1   360
  GreKo 12.9 64-bit                  2577  +29  -29  46.4%  +24.8   406
  GreKo 12.5 64-bit                  2569  +33  -33  50.7%   -6.8   305
  GreKo 13.1 64-bit                  2566  +30  -30  46.7%  +19.7   347
  GreKo 9.7 64-bit                   2544  +32  -32  48.9%   +5.5   307
  GreKo 12.0 64-bit                  2541  +25  -25  48.2%  +13.6   541
  GreKo 10.0 64-bit                  2517  +32  -32  51.1%   -6.3   306
  GreKo 10.3.1 64-bit                2515  +33  -33  50.3%   -2.4   304
  GreKo 10.2 64-bit                  2502  +31  -32  47.8%  +16.6   341
  GreKo 8.0 64-bit                   2490  +27  -27  50.6%   -3.7   464
  GreKo 9.2 32-bit                   2490  +33  -33  49.5%   +2.3   298
  GreKo 8.2 32-bit                   2487  +26  -25  49.1%   +5.4   506
  GreKo 8.1.1 64-bit                 2483  +36  -36  48.1%  +11.4   240
  GreKo 7.2 64-bit                   2460  +30  -30  53.4%  -25.7   364
  GreKo 8.0 32-bit                   2449  +29  -29  50.6%   -3.5   411
  GreKo 7.2 32-bit                   2428  +33  -33  48.4%  +10.3   304
  GreKo 6.30                         2378  +33  -33  48.0%  +13.8   307
  GreKo 7.0                          2370  +28  -28  46.3%  +29.2   454
  GreKo 6.25                         2367  +33  -33  48.0%  +13.9   302
  GreKo 6.5                          2363  +26  -26  48.9%   +7.9   495
  GreKo 5.9                          2349  +24  -24  46.4%  +27.7   621
  GreKo 5.5                          2311  +33  -33  50.7%   -5.9   305
  GreKo 5.2.5                        2276  +35  -35  50.9%   -8.1   289

Created in 2005-2013 by CCRL team
Last games added on June 15, 2019