CCRL Blitz
Downloads and Statistics
July 4, 2020
Testing summary:
Total: 2'318'734 games
played by 2'727 programs

White wins: 893'537 (38.5%)
Black wins: 718'844 (31.0%)
Draws: 706'353 (30.5%)
White score: 53.8%

Engine Details

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Rybka 2.1 64-bit in CCRL Blitz, 2020-07-04
Ponder off, General book up to 12 moves, up to 6 piece EGTB
Time control: From Jan 2020, equivalent to 2'+1" on an Intel i7-4770K. See the "about" page.
Tested by CCRL team, 2005-2020, http://ccrl.chessdom.com/ccrl/404/

CCRL Blitz main list:
Rybka 2.1 64-bit has no rank with rating of 2913 Elo points (+25 -24),
based on 664 games: 415 wins, 65 losses and 184 draws
Score: 76.4%, Average opponent: −191.8, Draws: 27.7%


Pairwise results:
     Opponent                          Elo     Score                  LOS   Perf
 - Toga II 1.3.1                       2772  43.5-15.5  (+33-5 =21)  100.0   +17
 - Toga II 1.2.1a 32-bit               2762  49.0-11.0  (+40-2 =18)  100.0   +75
 - Naum 2.1 64-bit                     2761  48.0-16.0  (+35-3 =26)  100.0    +9
 - Hiarcs X50                          2756  42.0-17.0  (+32-7 =20)  100.0   -14
 - Fritz 9                             2750  42.5-17.5  (+36-11=13)  100.0    -5
 - Spike 1.2 Turin                     2731  47.0-13.0  (+38-4 =18)  100.0   +16
 - Hiarcs X54 64-bit                   2714  42.0-17.0  (+35-10=14)  100.0   -46
 - Chess Tiger 2007                    2700  48.0-15.0  (+43-10=10)  100.0    -6
 - Naum 2.0 64-bit                     2693  44.0-16.0  (+34-6 =20)  100.0   -63
 - Glaurung 1.2.1 64-bit               2655  49.0-11.0  (+43-5 =12)  100.0   -10
 - CM10th Xperience                    2639  52.0-8.0   (+46-2 =12)  100.0   +18


Created in 2005-2013 by CCRL team
Last games added on July 4, 2020