CCRL 40/15
Downloads and Statistics
October 24, 2020
Testing summary:
Total: 1'185'135 games
played by 2'728 programs

White wins: 408'196 (34.4%)
Black wins: 301'376 (25.4%)
Draws: 475'563 (40.1%)
White score: 54.5%

Engine Details

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Rybka 2.2 64-bit 4CPU in CCRL 40/15, 2020-10-24
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 15 minutes on an Intel i7-4770k.
Tested by CCRL team, 2005-2020, http://ccrl.chessdom.com/ccrl/4040/

CCRL 40/15 main list:
Rybka 2.2 64-bit 4CPU has no rank with rating of 2973 Elo points (+19 -19),
based on 879 games: 371 wins, 146 losses and 362 draws
Score: 62.8%, Average opponent: −87.1, Draws: 41.2%


Pairwise results:
     Opponent                              Elo     Score                  LOS   Perf
 - ChessBrainVB 3.68 4CPU                  3124   5.5-10.5  (+3 -8 =5 )    0.0   +44
 - Defenchess 1.1f 64-bit 4CPU             3065   7.5-12.5  (+3 -8 =9 )    0.0   +16
 - Topple 0.7.5 64-bit 4CPU                3061   5.5-14.5  (+1 -10=9 )    0.0   -48
 - Pirarucu 2.9.5 64-bit 4CPU              3024   4.5-7.5   (+3 -6 =3 )    0.6   -37
 - Rybka 2.1 64-bit 4CPU                   2997  16.0-14.0  (+6 -4 =20)    8.6   +40
 - Stockfish 1.5.1 64-bit 4CPU             2969  30.5-33.5  (+14-17=33)   61.7   -16
 - EXchess 7.88b 64-bit 4CPU               2957   5.0-5.0   (+2 -2 =6 )   81.7   -16
 - Zap!Chess Zanzibar 64-bit 4CPU          2947  31.0-29.0  (+17-15=28)   96.0   -14
 - Stockfish 1.4 64-bit 4CPU               2947  66.0-57.0  (+37-28=58)   98.3    -3
 - Thinker 5.4c Inert 64-bit 4CPU          2923  15.5-16.5  (+5 -6 =21)  100.0   -60
 - Toga II 1.4.1SE 4CPU                    2903  17.5-14.5  (+10-7 =15)  100.0   -40
 - Bright 0.4a 4CPU                        2896  17.0-15.0  (+12-10=10)  100.0   -53
 - Glaurung 2.2 64-bit 4CPU                2895  19.0-13.0  (+13-7 =12)  100.0   -18
 - Hiarcs 11.1 4CPU                        2876  25.5-9.5   (+19-3 =13)  100.0   +51
 - Naum 2.1 64-bit 4CPU                    2864  23.0-9.0   (+15-1 =16)  100.0   +25
 - Igel 1.9.0 64-bit 4CPU                  2849  11.0-5.0   (+9 -3 =4 )  100.0    +9
 - Loop 13.6 (Loop 2007) 64-bit 4CPU       2837  25.5-8.5   (+18-1 =15)  100.0   +21
 - Deep Shredder 10 64-bit 4CPU            2831  25.0-6.0   (+21-2 =8 )  100.0   +80
 - Deep Fritz 10 4CPU                      2829  24.5-5.5   (+19-0 =11)  100.0   +72
 - Deep Junior 10 4CPU                     2802  26.0-5.0   (+23-2 =6 )  100.0   +97
 - Glaurung 1.2.1 64-bit 4CPU              2765  26.0-6.0   (+21-1 =10)  100.0   +11
 - Toga II 1.2.1a 32-bit                   2759  23.0-7.0   (+17-1 =12)  100.0   -45
 - Crafty 23.0 64-bit 4CPU                 2758  25.5-6.5   (+20-1 =11)  100.0   -10
 - Spike 1.2 Turin                         2745  26.0-4.0   (+22-0 =8 )  100.0   +45
 - Scorpio 2.0 32-bit 4CPU                 2731  25.5-5.5   (+21-1 =9 )  100.0    -8
 - Scorpio 2.1 64-bit 4CPU                 2718  25.0-7.0   (+20-2 =10)  100.0   -59


Created in 2005-2013 by CCRL team
Last games added on October 24, 2020