CCRL 40/15
Downloads and Statistics
May 8, 2021
Testing summary:
Total: 1'242'291 games
played by 2'843 programs

White wins: 425'658 (34.3%)
Black wins: 312'703 (25.2%)
Draws: 503'930 (40.6%)
White score: 54.5%

Engine Details

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Rybka 2.2 64-bit 4CPU in CCRL 40/15, 2021-05-08
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, 2005-2021, http://ccrl.chessdom.com/ccrl/4040/

CCRL 40/15 main list:
Rybka 2.2 64-bit 4CPU has no rank with rating of 2972 Elo points (+20 -19),
based on 879 games: 371 wins, 146 losses and 362 draws
Score: 62.8%, Average opponent: −87.2, Draws: 41.2%


Pairwise results:
     Opponent                              Elo     Score                  LOS   Perf
 - ChessBrainVB 3.68 4CPU                  3121   5.5-10.5  (+3 -8 =5 )    0.0   +42
 - Topple 0.7.5 64-bit 4CPU                3063   5.5-14.5  (+1 -10=9 )    0.0   -45
 - Defenchess 1.1f 64-bit 4CPU             3063   7.5-12.5  (+3 -8 =9 )    0.0   +15
 - Pirarucu 2.9.5 64-bit 4CPU              3023   4.5-7.5   (+3 -6 =3 )    0.6   -37
 - Rybka 2.1 64-bit 4CPU                   2996  16.0-14.0  (+6 -4 =20)    8.8   +40
 - Stockfish 1.5.1 64-bit 4CPU             2967  30.5-33.5  (+14-17=33)   62.4   -17
 - EXchess 7.88b 64-bit 4CPU               2955   5.0-5.0   (+2 -2 =6 )   82.6   -17
 - Zap!Chess Zanzibar 64-bit 4CPU          2946  31.0-29.0  (+17-15=28)   95.9   -14
 - Stockfish 1.4 64-bit 4CPU               2946  66.0-57.0  (+37-28=58)   98.3    -3
 - Thinker 5.4c Inert 64-bit 4CPU          2921  15.5-16.5  (+5 -6 =21)  100.0   -61
 - Toga II 1.4.1SE 4CPU                    2902  17.5-14.5  (+10-7 =15)  100.0   -40
 - Glaurung 2.2 64-bit 4CPU                2894  19.0-13.0  (+13-7 =12)  100.0   -18
 - Bright 0.4a 4CPU                        2894  17.0-15.0  (+12-10=10)  100.0   -54
 - Hiarcs 11.1 4CPU                        2875  25.5-9.5   (+19-3 =13)  100.0   +51
 - Naum 2.1 64-bit 4CPU                    2863  23.0-9.0   (+15-1 =16)  100.0   +25
 - Igel 1.9.0 64-bit 4CPU                  2847  11.0-5.0   (+9 -3 =4 )  100.0    +8
 - Loop 13.6 (Loop 2007) 64-bit 4CPU       2836  25.5-8.5   (+18-1 =15)  100.0   +21
 - Deep Shredder 10 64-bit 4CPU            2830  25.0-6.0   (+21-2 =8 )  100.0   +80
 - Deep Fritz 10 4CPU                      2829  24.5-5.5   (+19-0 =11)  100.0   +73
 - Deep Junior 10 4CPU                     2801  26.0-5.0   (+23-2 =6 )  100.0   +97
 - Glaurung 1.2.1 64-bit 4CPU              2764  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   -44
 - Crafty 23.0 64-bit 4CPU                 2757  25.5-6.5   (+20-1 =11)  100.0   -10
 - Spike 1.2 Turin                         2744  26.0-4.0   (+22-0 =8 )  100.0   +45
 - Scorpio 2.0 32-bit 4CPU                 2730  25.5-5.5   (+21-1 =9 )  100.0    -8
 - Scorpio 2.1 64-bit 4CPU                 2717  25.0-7.0   (+20-2 =10)  100.0   -59


Created in 2005-2013 by CCRL team
Last games added on May 8, 2021