CCRL Blitz
Downloads and Statistics
April 17, 2021
Testing summary:
Total: 2'506'279 games
played by 2'984 programs

White wins: 963'662 (38.4%)
Black wins: 771'889 (30.8%)
Draws: 770'728 (30.8%)
White score: 53.8%

Custom engine selection

Comparing 22 engines!
22 selected engines played 586 games with each other



CCRL Blitz Rating List - Custom engine selection
2506279 games played by 2984 programs, run by 22 testers
Ponder off, General books (up to 12 moves), 3-4-5 piece EGTB
Time control: From Jan 2020, equivalent to 2'+1" on an Intel i7-4770K. See the "About" page.
Computed on April 17, 2021 with Bayeselo based on 2'506'279 games
Tested by CCRL team, 2005-2021, http://ccrl.chessdom.com/ccrl/404/

Rank                 Engine                   Elo   +    -   Score  AvOp  Games
Scorpio 2.8 64-bit 4CPU                 2995  +17  -17  42.4%  +49.7  1101
  Scorpio 2.7.9 64-bit 4CPU               2981  +25  -25  45.8%  +27.4   520
  Scorpio 2.8 64-bit                      2903  +15  -15  43.1%  +48.0  1609
  Scorpio 2.7.9 64-bit                    2885  +21  -21  54.1%  -27.9   741
  Scorpio 2.7.8 64-bit                    2848  +26  -26  52.9%  -21.4   506
  Scorpio 2.7.6 64-bit                    2816  +15  -15  51.2%   -7.3  1607
  Scorpio 2.8.5 MCTS 64-bit               2814  +23  -22  59.7%  -71.3   720
  Scorpio 2.7.5 64-bit                    2804  +23  -23  62.2%  -90.7   735
  Scorpio 2.7 64-bit                      2775  +14  -14  51.2%   -4.4  1878
  Scorpio 2.6 64-bit                      2755  +14  -14  45.3%  +35.9  1917
  Scorpio 2.0 32-bit 4CPU                 2730  +20  -20  29.1% +154.3  1005
  Scorpio 2.1 64-bit 4CPU                 2723  +17  -17  27.5% +173.2  1495
  Scorpio 2.5 64-bit                      2682  +14  -14  51.5%   -7.4  1972
  Scorpio 2.0 32-bit                      2655  +12  -12  50.5%   -2.2  2542
  Scorpio 2.0 64-bit                      2653  +27  -27  49.6%   +2.0   383
  Scorpio 1.81                            2648  +14  -14  45.7%  +21.5  2021
  Scorpio 1.9                             2641  +13  -13  37.3%  +92.1  2357
  Scorpio 1.91                            2640  +12  -12  43.2%  +48.6  2381
  Scorpio 1.82                            2637  +20  -20  52.2%  -27.8  1024
  Scorpio 1.84                            2632  +20  -20  27.0% +169.8  1026
  Scorpio 1.8                             2623  +15  -15  40.6%  +69.9  1803
  Scorpio 2.1 64-bit                      2486  +32  -34  10.7% +362.3   650

Created in 2005-2013 by CCRL team
Last games added on April 17, 2021