CCRL 40/4
Downloads and Statistics
July 17, 2019
Testing summary:
Total: 2'068'038 games
played by 2'396 programs
27793 CPU days (X2 4600+)

White wins: 803'434 (38.9%)
Black wins: 650'049 (31.4%)
Draws: 614'555 (29.7%)
White score: 53.7%

Engine Details

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Rybka 2.2 64-bit in CCRL 40/4, 2019-07-17
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 Intel CPU.
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

CCRL 40/4 main list:
Rybka 2.2 64-bit has no rank with rating of 2937 Elo points (+18 -18),
based on 1266 games: 716 wins, 171 losses and 379 draws
Score: 71.5%, Average opponent: −162.5, Draws: 29.9%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Stockfish 1.6.3 64-bit             2985  14.0-18.0  (+6 -10=16)    0.0   +12
 - Critter 0.70 64-bit                2973  16.0-16.0  (+10-10=12)    0.2   +38
 - Komodo 1.2 64-bit                  2966  30.0-32.0  (+18-20=24)    0.2   +18
 - Spark 0.5 64-bit                   2920  19.0-14.0  (+16-11=6 )   90.8   +42
 - Spark 0.4 64-bit                   2882  35.0-27.0  (+24-16=22)  100.0   -11
 - Critter 0.60 64-bit                2866  19.0-11.0  (+12-4 =14)  100.0   +13
 - Hannibal 05_24_10v2 64-bit         2858  20.5-14.5  (+12-6 =17)  100.0   -23
 - Protector 1.3.5 64-bit             2855  20.5-9.5   (+14-3 =13)  100.0   +36
 - Hannibal 05_20_10 64-bit           2824  32.5-17.5  (+21-6 =23)  100.0   -19
 - Fritz 10                           2799   4.5-5.5   (+3 -4 =3 )  100.0  -174
 - Hiarcs 11                          2790  47.0-17.0  (+37-7 =20)  100.0   +14
 - Toga II 1.3.1                      2772  49.0-15.0  (+39-5 =20)  100.0   +19
 - Twisted Logic 20100131x 64-bit     2766  26.5-5.5   (+23-2 =7 )  100.0   +81
 - Toga II 1.2.1a 32-bit              2762  48.0-15.0  (+38-5 =20)  100.0    +8
 - Bison 9.11 64-bit                  2761  23.5-6.5   (+18-1 =11)  100.0   +13
 - Naum 2.1 64-bit                    2760  46.5-17.5  (+38-9 =17)  100.0   -13
 - Hiarcs X50                         2756  48.0-16.0  (+41-9 =14)  100.0    +5
 - Fritz 9                            2750  44.0-20.0  (+33-9 =22)  100.0   -60
 - Hiarcs X54 32-bit                  2744  52.0-12.0  (+44-4 =16)  100.0   +40
 - Junior 10                          2738   7.0-3.0   (+6 -2 =2 )  100.0   -45
 - Spike 1.2 Turin                    2731  48.5-15.5  (+38-5 =21)  100.0   -28
 - Ktulu 8                            2725   7.5-2.5   (+5 -0 =5 )  100.0   -63
 - Chess Tiger 2007                   2700  53.0-11.0  (+48-6 =10)  100.0   +31
 - Naum 2.0 64-bit                    2693  52.5-11.5  (+46-5 =13)  100.0    +4
 - Glaurung 1.2.1 64-bit              2655  63.5-10.5  (+57-4 =13)  100.0   +10
 - CM10th Xperience                   2638  51.5-12.5  (+44-5 =15)  100.0   -68
 - ProDeo 1.2                         2608   6.5-3.5   (+6 -3 =1 )  100.0  -209
 - Trace 1.37a                        2500   8.0-1.0   (+7 -0 =2 )  100.0  -124
 - Nebiyu 1.2                         2310  12.0-0.0   (+12-0 =0 )  100.0  +INF


Created in 2005-2013 by CCRL team
Last games added on July 17, 2019