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 16 engines!
16 selected engines played 60 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
  Counter 3.2 64-bit 4CPU           2843  +46  -46  47.7%  +12.0   153
Counter 3.3 64-bit                2836  +35  -35  49.6%   +3.0   252
  Counter 3.2 64-bit                2832  +19  -19  49.9%   -0.7   868
  Counter 3.1 64-bit                2784  +20  -20  51.4%   -9.2   804
  Counter 3.0 64-bit                2731  +28  -28  48.1%  +12.1   414
  Counter 2.9 64-bit                2715  +24  -24  49.6%   +1.0   578
  Counter 2.7 64-bit                2674  +27  -27  52.8%  -19.8   448
  Counter 2.8 64-bit                2671  +25  -25  52.3%  -16.1   526
  Counter 2.6 64-bit                2634  +25  -25  51.7%  -13.4   543
  Counter 2.1.0 64-bit              2574  +24  -24  47.6%  +18.8   552
  Counter 2.0.2 64-bit              2560  +26  -26  52.2%  -16.1   500
  Counter 1.2                       2469  +17  -17  48.2%  +12.9  1139
  Counter 1.99 64-bit               2463  +32  -32  46.7%  +19.6   332
  Counter 1.1                       2456  +23  -23  50.8%   -7.9   632
  Counter 1.0                       2367  +33  -33  49.7%   +0.7   302
  Counter 0.8                       2354  +33  -33  48.2%  +13.0   306

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