CCRL 40/40
Downloads and Statistics
December 10, 2019
Testing summary:
Total: 1'104'091 games
played by 2'573 programs
150964 CPU days (X2 4600+)

White wins: 382'628 (34.7%)
Black wins: 284'145 (25.7%)
Draws: 437'318 (39.6%)
White score: 54.5%

Custom engine selection

Comparing 15 engines!
15 selected engines played 32 games with each other



CCRL 40/40 Rating List - Custom engine selection
1104091 games played by 2573 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 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern CPU.
Computed on December 10, 2019 with Bayeselo based on 1'104'091 games
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/4040/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Thinker 5.4d Inert 64-bit 4CPU     2926  +22  -23  46.0%  +24.3   587
  Thinker 5.4c Inert 64-bit 4CPU     2923  +15  -15  48.1%  +13.0  1502
  Thinker 5.4a Inert 64-bit 4CPU     2904  +23  -24  47.3%  +20.2   560
  Thinker 5.4d Inert 64-bit          2865  +16  -16  47.9%  +10.3  1300
  Thinker 5.4c Inert 64-bit          2860  +14  -14  46.6%  +19.3  1651
  Thinker 5.4d Inert 32-bit          2856  +10  -10  45.5%  +30.1  3379
  Thinker 5.4a Inert 64-bit          2850  +31  -31  49.9%   +1.8   340
  Thinker 5.4c Inert 32-bit          2849  +13  -13  54.3%  -28.0  1967
  Thinker 5.3b Inert 32-bit          2845  +19  -19  54.4%  -28.4   834
  Thinker 5.3b Inert 64-bit          2842  +24  -24  47.4%  +17.5   513
  Thinker 5.4a Inert 32-bit          2835  +21  -21  50.4%   -2.8   681
  Thinker 5.3b Passive 64-bit        2765  +24  -24  47.4%  +21.5   553
  Thinker 5.2e Passive               2761  +28  -28  46.9%  +21.1   429
  Thinker 5.1d Passive               2723  +28  -28  45.8%  +26.6   439
  Thinker 4.7a                       2545  +30  -30  51.8%  -14.0   363

Created in 2005-2013 by CCRL team
Last games added on December 10, 2019