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 2.3.1 32-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 2.3.1 32-bit has no rank with rating of 2894 Elo points (+17 -17),
based on 1494 games: 933 wins, 166 losses and 395 draws
Score: 75.7%, Average opponent: −189.8, Draws: 26.4%


Pairwise results:
     Opponent                          Elo     Score                  LOS   Perf
 - Hiarcs 11.1                         2803  40.5-23.5  (+31-14=19)  100.0    +3
 - Hiarcs 11                           2790  16.5-15.5  (+12-11=9 )  100.0   -92
 - Loop 13.6 (Loop 2007) 32-bit        2775   5.0-4.0   (+3 -2 =4 )  100.0   -78
 - Toga II 1.3.1                       2772  42.0-22.0  (+31-11=22)  100.0   -17
 - Toga II 1.2.1a 32-bit               2762  50.0-14.0  (+39-3 =22)  100.0   +60
 - Loop 13.5 32-bit                    2762  97.5-27.5  (+81-11=33)  100.0   +70
 - Hiarcs X50                          2756  45.0-19.0  (+37-11=16)  100.0   +10
 - Fritz 9                             2750  44.0-19.0  (+35-10=18)  100.0    -4
 - Hiarcs X54 Hypermodern 32-bit       2749  45.0-18.0  (+36-9 =18)  100.0    +5
 - Naum 2.1 32-bit                     2738  95.0-30.0  (+76-11=38)  100.0   +26
 - Hiarcs 10                           2736  42.5-21.5  (+35-14=15)  100.0   -40
 - Spike 1.2 Turin                     2731  44.5-19.5  (+35-10=19)  100.0   -28
 - Chess Tiger 2007.1                  2713  15.0-7.0   (+11-3 =8 )  100.0   -61
 - Naum 2.0 32-bit                     2700  49.5-14.5  (+42-7 =15)  100.0    +8
 - Glaurung 1.2.1 32-bit               2657  79.5-16.5  (+69-6 =21)  100.0   +15
 - CM10th Paralyse                     2655  25.5-6.5   (+23-4 =5 )  100.0     0
 - Scorpio 1.81                        2648  53.0-11.0  (+47-5 =12)  100.0   +13
 - Scorpio 1.9                         2641  51.0-13.0  (+42-4 =18)  100.0   -40
 - Scorpio 1.91                        2641  24.5-6.5   (+21-3 =7 )  100.0   -36
 - CM10th Xperience                    2639  27.0-5.0   (+23-1 =8 )  100.0    +3
 - Scorpio 1.82                        2638  25.5-6.5   (+21-2 =9 )  100.0   -42
 - Scorpio 1.84                        2633  53.5-10.5  (+46-3 =15)  100.0    -3
 - Scorpio 1.8                         2624  55.0-9.0   (+47-1 =16)  100.0    +2
 - Slow Chess Blitz WV2.1              2614  23.0-9.0   (+17-3 =12)  100.0  -135
 - ProDeo 1.2                          2608  24.5-7.5   (+21-4 =7 )  100.0   -87
 - WildCat 7                           2606  28.0-4.0   (+27-3 =2 )  100.0   +67
 - Pharaon 3.5.1                       2603  28.5-3.5   (+25-0 =7 )  100.0   +22


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