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 21 engines!
21 selected engines played 60 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
RubiChess 2.0 64-bit 4CPU               3356  +20  -20  42.4%  +47.3   666
  RubiChess 1.8 64-bit 4CPU               3292  +19  -19  37.9%  +73.5   808
  RubiChess 1.7.3 64-bit 4CPU             3288  +20  -20  48.3%  +10.0   736
  RubiChess 1.9 64-bit                    3263  +14  -15  46.2%  +28.1  1460
  RubiChess 1.6 64-bit 4CPU               3226  +25  -25  59.5%  -58.3   466
  RubiChess 1.7.3 64-bit                  3190  +17  -17  50.7%   -2.9  1040
  RubiChess 1.8 64-bit                    3188  +20  -20  46.0%  +28.1   785
  RubiChess 1.7.1 64-bit                  3172  +22  -22  49.3%   +4.3   592
  RubiChess 1.6.1 64-bit                  3168  +23  -23  52.8%  -16.9   550
  RubiChess 1.5 64-bit 4CPU               3161  +29  -29  52.4%  -14.0   348
  RubiChess 1.6 64-bit                    3159  +19  -19  58.7%  -60.2   865
  RubiChess 1.5 64-bit                    3109  +20  -20  48.6%   +5.4   741
  RubiChess 1.3 64-bit 4CPU               3065  +22  -22  52.8%  -17.5   642
  RubiChess 1.4 64-bit                    3036  +17  -17  48.3%   +9.3   994
  RubiChess 1.3 64-bit                    2980  +21  -21  52.7%  -20.6   765
  RubiChess 1.2.1 64-bit                  2908  +19  -19  51.7%  -12.2   909
  RubiChess 1.1 64-bit                    2774  +20  -20  50.7%   -6.2   829
  RubiChess 1.0 64-bit                    2614  +21  -21  45.6%  +27.7   779
  RubiChess 0.9 64-bit                    2554  +22  -22  51.9%  -17.7   718
  RubiChess 0.8 64-bit                    2460  +26  -26  52.4%  -19.7   503
  RubiChess 0.7 64-bit                    2302  +23  -23  54.5%  -33.8   683

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