CCRL 40/40
Downloads and Statistics
July 19, 2019
Testing summary:
Total: 1'068'538 games
played by 2'502 programs
146028 CPU days (X2 4600+)

White wins: 371'241 (34.7%)
Black wins: 276'263 (25.9%)
Draws: 421'034 (39.4%)
White score: 54.4%

Engine Details

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Cheng4 0.36a 64-bit in CCRL 40/40, 2019-07-19
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern Intel CPU.
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Cheng4 0.36a 64-bit has no rank with rating of 2747 Elo points (+30 -30),
based on 370 games: 116 wins, 123 losses and 131 draws
Score: 49.1%, Average opponent: +7.1, Draws: 35.4%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Hannibal 1.2 32-bit                2904   1.5-8.5   (+0 -7 =3 )    0.0   -95
 - Hiarcs 13.2                        2896   2.5-7.5   (+0 -5 =5 )    0.0    +3
 - Quazar 0.4 32-bit                  2879   2.0-8.0   (+2 -8 =0 )    0.0  -149
 - Protector 1.4.0 32-bit             2877   4.0-6.0   (+2 -4 =4 )    0.0   +71
 - Gull 1.2 32-bit                    2875   2.5-7.5   (+1 -6 =3 )    0.0   -45
 - SmarThink 1.40 64-bit              2819   7.5-12.5  (+4 -9 =7 )    0.1    -7
 - Crafty 23.8 64-bit                 2811   2.5-7.5   (+0 -5 =5 )    0.0   -84
 - DiscoCheck 5.0.1 64-bit            2805   4.0-6.0   (+2 -4 =4 )    0.5    -8
 - Glaurung 2.2 64-bit                2783   2.0-8.0   (+1 -7 =2 )    2.1  -190
 - Arasan 16.3 64-bit                 2782   6.5-7.5   (+3 -4 =7 )    4.4   +12
 - Gaviota 0.86 64-bit                2781   2.5-1.5   (+2 -1 =1 )    3.4  +126
 - EXchess 7.18b 64-bit               2775   7.0-7.0   (+5 -5 =4 )    7.4   +21
 - Naraku 1.4                         2775   0.0-2.0   (+0 -2 =0 )    5.7  -INF
 - Octochess r5190 64-bit             2772   6.5-9.5   (+3 -6 =7 )    7.4   -31
 - Thinker 5.3b Passive 64-bit        2765   6.5-3.5   (+6 -3 =1 )   17.6  +140
 - NirvanaChess 1.4 64-bit            2764   5.5-4.5   (+3 -2 =5 )   21.9   +40
 - GNU Chess 5.50 64-bit              2757   2.0-2.0   (+1 -1 =2 )   29.4   +10
 - Bison 9.11 64-bit                  2755   1.5-0.5   (+1 -0 =1 )   32.7  +150
 - NirvanaChess 1.3 64-bit            2748  14.5-11.5  (+11-8 =7 )   49.0   +39
 - Arasan 16.2 64-bit                 2741   7.5-2.5   (+7 -2 =1 )   61.5  +202
 - Chronos 1.9.9 64-bit               2738   0.5-1.5   (+0 -1 =1 )   71.5  -166
 - Deuterium 13.1.31.113 64-bit       2729   5.5-4.5   (+3 -2 =5 )   82.2    +9
 - Bobcat 3.25 64-bit                 2725   7.0-7.0   (+2 -2 =10)   90.5   -19
 - iCE 1.0 64-bit                     2706   7.0-7.0   (+5 -5 =4 )   99.2   -44
 - ProDeo 1.86                        2701  13.5-10.5  (+10-7 =7 )   98.8     0
 - Chessmaster 11 Conqueror           2698   5.0-5.0   (+3 -3 =4 )   99.7   -53
 - Vajolet 2.48                       2691   9.5-10.5  (+4 -5 =11)   99.6   -69
 - Rodent 1.2 64-bit                  2690   9.5-4.5   (+8 -3 =3 )   99.6   +74
 - Atlas 3.60 64-bit                  2687  12.0-8.0   (+8 -4 =8 )   99.9    +5
 - Pawny 1.0 64-bit                   2660   7.0-3.0   (+6 -2 =2 )  100.0   +60
 - RedQueen 1.1.4 64-bit              2653   9.0-1.0   (+8 -0 =2 )  100.0  +233
 - Djinn 0.992 64-bit                 2588   7.5-2.5   (+5 -0 =5 )  100.0    -8


Created in 2005-2013 by CCRL team
Last games added on July 19, 2019