CCRL 40/4
Downloads and Statistics
November 8, 2019
Testing summary:
Total: 2'127'795 games
played by 2'486 programs
28766 CPU days (X2 4600+)

White wins: 825'412 (38.8%)
Black wins: 667'151 (31.4%)
Draws: 635'232 (29.9%)
White score: 53.7%

Custom engine selection

Comparing 12 engines!
12 selected engines played 0 games with each other



CCRL 40/4 Rating List - Custom engine selection
2127795 games played by 2486 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 4 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 1.5 minutes on a modern CPU.
Computed on November 8, 2019 with Bayeselo based on 2'127'795 games
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/404/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Counter 3.3 64-bit                 2877  +20  -20  49.7%   +1.7   804
  Counter 3.2 64-bit                 2848  +21  -21  52.1%  -16.0   745
  Counter 3.1 64-bit                 2796  +25  -25  55.1%  -33.6   571
  Counter 2.9 64-bit                 2702  +20  -19  49.5%   +6.2   920
  Counter 2.8 64-bit                 2643  +21  -21  50.6%   -4.1   800
  Counter 2.7 64-bit                 2634  +53  -52  59.1%  -63.8   127
  Counter 2.5 64-bit                 2577  +21  -21  47.3%  +19.6   775
  Counter 2.0.2 64-bit               2575  +28  -28  49.7%   +2.0   430
  Counter 2.1.0 64-bit               2560  +18  -18  46.1%  +27.5  1114
  Counter 2.0.1 64-bit               2546  +19  -19  43.6%  +43.3   924
  Counter 1.99 64-bit                2451  +23  -23  43.8%  +43.1   640
  Counter 1.2                        2447  +10  -10  48.0%  +13.8  3950

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