CCRL 40/15
Downloads and Statistics
February 20, 2021
Testing summary:
Total: 1'218'554 games
played by 2'788 programs

White wins: 418'779 (34.4%)
Black wins: 308'204 (25.3%)
Draws: 491'571 (40.3%)
White score: 54.5%

Custom engine selection

Comparing 29 engines!
29 selected engines played 8 games with each other



CCRL 40/15 Rating List - Custom engine selection
1218554 games played by 2788 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 15 minutes on an Intel i7-4770k.
Computed on February 20, 2021 with Bayeselo based on 1'218'554 games
Tested by CCRL team, 2005-2021, http://ccrl.chessdom.com/ccrl/4040/

Rank                 Engine                   Elo   +    -   Score  AvOp  Games
Critter 1.6a 64-bit 4CPU                3158   +8   -8  45.3%  +32.0  5429
  Critter 1.4 64-bit 4CPU                 3148  +18  -18  60.0%  -61.0   907
  Critter 1.2 64-bit 4CPU                 3145  +20  -20  58.9%  -55.6   762
  Critter 1.6a 64-bit                     3099   +7   -7  45.6%  +29.8  7032
  Critter 1.01 64-bit 4CPU                3086  +27  -27  46.1%  +22.9   385
  Critter 1.2 64-bit                      3079  +14  -14  52.7%  -17.5  1511
  Critter 1.4 64-bit                      3079  +20  -20  55.6%  -37.0   774
  Critter 0.90 64-bit 4CPU                3077  +31  -31  47.6%  +13.7   316
  Critter 1.4 32-bit                      3070  +13  -13  61.9%  -78.4  1808
  Critter 1.6 32-bit                      3066  +19  -19  62.6%  -80.4   871
  Critter 1.6a 32-bit                     3066  +16  -16  62.4%  -76.5  1127
  Critter 1.2 32-bit                      3058  +14  -14  62.1%  -81.8  1653
  Critter 1.01 64-bit                     3044  +23  -23  54.2%  -28.8   560
  Critter 0.90 64-bit                     3035  +23  -23  61.5%  -74.5   604
  Critter 0.80 64-bit 4CPU                3032  +31  -31  50.9%   -8.2   321
  Critter 1.01 32-bit                     3019  +18  -18  63.1%  -87.8  1015
  Critter 0.90 32-bit                     2989  +15  -15  61.4%  -73.8  1473
  Critter 0.80 64-bit                     2961  +20  -20  57.7%  -53.0   822
  Critter 0.80 32-bit                     2924  +15  -15  55.1%  -31.6  1341
  Critter 0.70 64-bit                     2919  +27  -27  54.3%  -26.7   420
  Critter 0.70 32-bit                     2876  +19  -19  50.4%   -2.8   795
  Critter 0.60 64-bit                     2839  +25  -25  46.4%  +24.4   508
  Critter 0.60 32-bit                     2830  +23  -23  48.7%   +7.6   596
  Critter 0.52b 64-bit                    2805  +31  -31  50.2%   -1.0   319
  Critter 0.52b 32-bit                    2772  +30  -30  50.9%   -5.8   325
  Critter 0.52 32-bit                     2735  +31  -31  48.4%   +9.4   320
  Critter 0.42 32-bit                     2705  +25  -25  51.9%  -12.7   494
  Critter 0.40 32-bit                     2576  +32  -32  51.4%   -9.0   327
  Critter 0.38                            2435  +32  -32  51.1%   -9.3   320

Created in 2005-2013 by CCRL team
Last games added on February 20, 2021