CCRL 40/15
Downloads and Statistics
May 1, 2021
Testing summary:
Total: 1'240'737 games
played by 2'832 programs

White wins: 425'216 (34.3%)
Black wins: 312'397 (25.2%)
Draws: 503'124 (40.6%)
White score: 54.5%

Custom engine selection

Comparing 15 engines!
15 selected engines played 40 games with each other



CCRL 40/15 Rating List - Custom engine selection
1240737 games played by 2832 programs, run by 24 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 May 1, 2021 with Bayeselo based on 1'240'737 games
Tested by CCRL team, 2005-2021, http://ccrl.chessdom.com/ccrl/4040/

Rank                 Engine                   Elo   +    -   Score  AvOp  Games
Topple 0.7.5 64-bit 4CPU                3061  +28  -28  51.7%  -11.3   386
  Topple 0.8.0 64-bit                     3005  +22  -22  46.5%  +20.4   650
  Topple 0.7.5 64-bit                     2982  +17  -17  49.2%   +3.3  1079
  Topple 0.7.4 64-bit                     2930  +30  -30  51.0%   -7.7   340
  Topple 0.7.3 64-bit                     2908  +24  -24  49.7%   +0.3   579
  Topple 0.7.1 64-bit                     2888  +25  -25  52.2%  -17.5   470
  Topple 0.7.2 64-bit                     2886  +20  -20  51.6%  -11.6   785
  Topple 0.7.0 64-bit                     2814  +27  -27  48.9%   +8.1   418
  Topple 0.6.1 64-bit                     2808  +19  -19  50.5%   -3.3   888
  Topple 0.5.0 64-bit                     2805  +27  -27  49.7%   +2.1   440
  Topple 0.3.5 64-bit                     2742  +30  -30  48.8%   +4.4   368
  Topple 0.4.0 64-bit                     2710  +25  -25  49.3%   +6.5   536
  Topple 0.3.3 64-bit                     2616  +20  -20  52.5%  -18.4   904
  Topple 0.2.1 64-bit                     2459  +18  -18  46.2%  +27.9  1252
  Topple 0.1.1 64-bit                     2360  +22  -22  53.4%  -30.3   816

Created in 2005-2013 by CCRL team
Last games added on May 1, 2021