CCRL 40/4
Downloads and Statistics
June 8, 2019
Testing summary:
Total: 2'047'025 games
played by 2'359 programs
27440 CPU days (X2 4600+)

White wins: 795'370 (38.9%)
Black wins: 643'883 (31.5%)
Draws: 607'772 (29.7%)
White score: 53.7%

Custom engine selection

Comparing 11 engines!
11 selected engines played 0 games with each other



CCRL 40/4 Rating List - Custom engine selection
2047025 games played by 2359 programs, run by 21 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 Intel CPU.
Computed on June 8, 2019 with Bayeselo based on 2'047'025 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Counter 3.2 64-bit                 2846  +22  -21  51.6%  -13.7   715
  Counter 3.1 64-bit                 2794  +25  -25  55.1%  -33.0   571
  Counter 2.9 64-bit                 2702  +20  -19  49.5%   +5.9   920
  Counter 2.8 64-bit                 2642  +21  -21  50.6%   -4.1   800
  Counter 2.7 64-bit                 2634  +53  -52  59.1%  -64.8   127
  Counter 2.5 64-bit                 2576  +21  -21  47.3%  +19.9   775
  Counter 2.0.2 64-bit               2575  +28  -28  49.7%   +1.6   430
  Counter 2.1.0 64-bit               2560  +18  -18  46.1%  +27.1  1114
  Counter 2.0.1 64-bit               2546  +19  -20  43.6%  +42.8   924
  Counter 1.99 64-bit                2450  +23  -23  43.8%  +43.2   640
  Counter 1.2                        2446   +9  -10  48.0%  +13.9  3950

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