CCRL 40/4
Downloads and Statistics
November 8, 2019
Testing summary:
Total: 2'127'795 games
played by 2'486 programs
28766 CPU days (X2 4600+)

White wins: 825'412 (38.8%)
Black wins: 667'151 (31.4%)
Draws: 635'232 (29.9%)
White score: 53.7%

Engine Details

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Rybka 2.3.1 32-bit in CCRL 40/4, 2019-11-08
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 4 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 1.5 minutes on a modern CPU.
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/404/

CCRL 40/4 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: −189.4, Draws: 26.4%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Hiarcs 11.1                        2804  40.5-23.5  (+31-14=19)  100.0    +4
 - Hiarcs 11                          2791  16.5-15.5  (+12-11=9 )  100.0   -91
 - Loop 13.6 (Loop 2007) 32-bit       2776   5.0-4.0   (+3 -2 =4 )  100.0   -77
 - Toga II 1.3.1                      2773  42.0-22.0  (+31-11=22)  100.0   -16
 - Loop 13.5 32-bit                   2763  97.5-27.5  (+81-11=33)  100.0   +71
 - Toga II 1.2.1a 32-bit              2763  50.0-14.0  (+39-3 =22)  100.0   +61
 - Hiarcs X50                         2756  45.0-19.0  (+37-11=16)  100.0   +10
 - Fritz 9                            2751  44.0-19.0  (+35-10=18)  100.0    -3
 - Hiarcs X54 Hypermodern 32-bit      2750  45.0-18.0  (+36-9 =18)  100.0    +6
 - Naum 2.1 32-bit                    2739  95.0-30.0  (+76-11=38)  100.0   +27
 - 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             2615  23.0-9.0   (+17-3 =12)  100.0  -134
 - ProDeo 1.2                         2609  24.5-7.5   (+21-4 =7 )  100.0   -86
 - WildCat 7                          2606  28.0-4.0   (+27-3 =2 )  100.0   +67
 - Pharaon 3.5.1                      2604  28.5-3.5   (+25-0 =7 )  100.0   +23


Created in 2005-2013 by CCRL team
Last games added on November 8, 2019