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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NirvanaChess 2.1c 64-bit 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:
NirvanaChess 2.1c 64-bit has no rank with rating of 3020 Elo points (+23 -23),
based on 564 games: 131 wins, 134 losses and 299 draws
Score: 49.7%, Average opponent: +1.8, Draws: 53.0%


Pairwise results:
     Opponent                              Elo     Score                  LOS   Perf
 - Stockfish 6 64-bit                      3223   4.0-8.0   (+0 -4 =8 )    0.0  +111
 - Fire 4 64-bit                           3143   5.5-16.5  (+3 -14=5 )    0.0   -61
 - Gull 3 64-bit                           3117   7.0-17.0  (+3 -13=8 )    0.0   -46
 - Strelka 5.5 64-bit                      3101   3.5-6.5   (+1 -4 =5 )    0.0    -5
 - Critter 1.6a 64-bit                     3098   8.0-14.0  (+1 -7 =14)    0.0    +2
 - Equinox 3.30 64-bit                     3083  11.5-12.5  (+3 -4 =17)    0.0   +52
 - Rybka 4.1 64-bit                        3076   6.5-5.5   (+4 -3 =5 )    0.0   +83
 - Bouquet 1.8 64-bit                      3072   6.5-13.5  (+2 -9 =9 )    0.0   -59
 - Alfil 15.7 64-bit                       3055   2.0-2.0   (+0 -0 =4 )    0.4   +35
 - BlackMamba 2.0 64-bit                   3054  11.0-13.0  (+4 -6 =14)    0.3   +12
 - Vitruvius 1.11C 64-bit                  3047   1.0-1.0   (+0 -0 =2 )    2.5   +27
 - Rybka 3 64-bit                          3046   4.0-4.0   (+1 -1 =6 )    2.3   +30
 - Elektro 1.2 64-bit                      3039   7.5-6.5   (+3 -2 =9 )    9.8   +39
 - Hannibal 1.5 64-bit                     3038  18.0-14.0  (+10-6 =16)    8.7   +53
 - Sting SF 5 64-bit                       3038  15.0-18.0  (+5 -8 =20)   10.4    -8
 - Protector 1.8.0 64-bit                  3036  12.5-15.5  (+5 -8 =15)   12.1   -14
 - Chiron 2 64-bit                         3013  10.0-10.0  (+5 -5 =10)   70.4    -4
 - Protector 1.7.0 64-bit                  3008   4.5-5.5   (+1 -2 =7 )   79.9   -39
 - Naum 4.6 64-bit                         3008  14.5-14.5  (+5 -5 =19)   81.5   -10
 - Texel 1.05 64-bit                       3007  13.5-10.5  (+9 -6 =9 )   82.8   +25
 - Andscacs 0.82 64-bit                    3006   7.5-8.5   (+3 -4 =9 )   79.2   -37
 - Andscacs 0.81 64-bit                    3005   4.5-5.5   (+2 -3 =5 )   80.5   -42
 - Alfil 15.8 64-bit                       2962   4.0-2.0   (+2 -0 =4 )  100.0   +31
 - Senpai 1.0 64-bit                       2959   6.0-4.0   (+3 -1 =6 )  100.0    -5
 - Hiarcs 14                               2959   5.5-4.5   (+3 -2 =5 )  100.0   -29
 - Andscacs 0.80 64-bit                    2959  15.0-11.0  (+7 -3 =16)  100.0   -21
 - Fizbo 1.5 64-bit                        2955  12.0-10.0  (+6 -4 =12)  100.0   -38
 - Deep Shredder 12 64-bit                 2937   6.5-3.5   (+4 -1 =5 )  100.0    +5
 - Fizbo 1.4 64-bit                        2927   7.0-3.0   (+5 -1 =4 )  100.0   +37
 - Deep Junior Yokohama 64-bit             2918   4.0-6.0   (+1 -3 =6 )  100.0  -157
 - Cheng 4.39 64-bit                       2918  15.0-5.0   (+11-1 =8 )  100.0   +59
 - SmarThink 1.70 64-bit                   2916   6.5-3.5   (+4 -1 =5 )  100.0   -17
 - Vajolet2 2.0 64-bit                     2915   8.0-2.0   (+6 -0 =4 )  100.0   +90
 - DiscoCheck 5.2 64-bit                   2898   6.5-3.5   (+4 -1 =5 )  100.0   -30
 - Cheng4 0.38 64-bit                      2888   6.5-3.5   (+5 -2 =3 )  100.0   -27


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