CCRL 40/40
Downloads and Statistics
July 11, 2019
Testing summary:
Total: 1'066'603 games
played by 2'494 programs
145750 CPU days (X2 4600+)

White wins: 370'641 (34.7%)
Black wins: 275'905 (25.9%)
Draws: 420'057 (39.4%)
White score: 54.4%

Engine Details

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Critter 0.40 32-bit in CCRL 40/40, 2019-07-11
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:
Critter 0.40 32-bit has no rank with rating of 2576 Elo points (+32 -31),
based on 327 games: 112 wins, 103 losses and 112 draws
Score: 51.4%, Average opponent: −9.3, Draws: 34.3%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Twisted Logic 20090922 32-bit      2730   0.5-1.5   (+0 -1 =1 )    0.0   +11
 - Ktulu 8                            2705   0.5-1.5   (+0 -1 =1 )    0.0   -27
 - Booot 4.15.0                       2692   0.0-2.0   (+0 -2 =0 )    0.0  -INF
 - Delfi 5.4                          2689   0.5-1.5   (+0 -1 =1 )    0.0   -29
 - Chess Tiger 2007                   2681   0.5-1.5   (+0 -1 =1 )    0.0   -51
 - CM10th Xperience                   2661   1.0-1.0   (+1 -1 =0 )    0.0   +85
 - Scorpio 1.91                       2660   0.5-1.5   (+0 -1 =1 )    0.0   -58
 - BugChess2 1.6.4 32-bit             2657   0.0-2.0   (+0 -2 =0 )    0.0  -INF
 - Colossus 2008b                     2643   2.0-2.0   (+1 -1 =2 )    0.0   +67
 - Chronos 1.9.7                      2639   3.5-6.5   (+2 -5 =3 )    0.0   -45
 - CM10th Warrior                     2633   0.5-1.5   (+0 -1 =1 )    0.3   -85
 - Crafty 23.0 32-bit                 2630   2.5-3.5   (+1 -2 =3 )    0.6    +8
 - WildCat 8                          2629   2.0-2.0   (+2 -2 =0 )    0.1   +53
 - BugChess2 1.6.3 32-bit             2620   1.0-3.0   (+0 -2 =2 )    1.0  -105
 - Bison 9.6                          2619   0.5-1.5   (+0 -1 =1 )    1.6  -113
 - Hamsters 0.7.1                     2618   3.5-2.5   (+2 -1 =3 )    0.8   +94
 - Bison 9.8 32-bit                   2613   2.0-2.0   (+1 -1 =2 )    5.3   +37
 - Dirty 24Apr2011 32-bit             2613   1.0-9.0   (+1 -9 =0 )    4.4  -386
 - Alaric 0702b                       2605   1.0-1.0   (+1 -1 =0 )    8.4   +29
 - Alfil 8.1.1                        2600   1.5-4.5   (+1 -4 =1 )    8.2  -176
 - Sloppy 0.2.2 32-bit                2598   1.0-3.0   (+0 -2 =2 )    9.9  -127
 - The Baron 2.23 32-bit              2594   2.0-2.0   (+0 -0 =4 )   15.8   +18
 - Pseudo 0.7c                        2591  14.0-18.0  (+9 -13=10)   19.4   -28
 - Jonny 2.83 32-bit                  2576  19.5-12.5  (+13-6 =13)   50.6   +66
 - Crafty 22.10 32-bit                2571   7.5-2.5   (+6 -1 =3 )   57.6  +165
 - Scorpio 2.2 32-bit                 2569   5.0-3.0   (+4 -2 =2 )   62.1   +81
 - Rotor 0.5                          2564  23.5-15.5  (+18-10=11)   73.9   +58
 - Anaconda 2.0.1                     2554  18.5-13.5  (+13-8 =11)   85.3   +28
 - AnMon 5.75                         2538   3.0-5.0   (+1 -3 =4 )   98.4  -107
 - DanaSah 4.24                       2526   4.0-4.0   (+3 -3 =2 )   99.7   -43
 - GarboChess 2.20 32-bit             2522   5.0-3.0   (+2 -0 =6 )   99.9   +13
 - Brutus 7.02b                       2514   2.5-5.5   (+1 -4 =3 )  100.0  -186
 - Hermann 2.4 32-bit                 2500   5.0-3.0   (+3 -1 =4 )  100.0    -2
 - Arasan 11.3 32-bit                 2500   6.5-3.5   (+5 -2 =3 )  100.0   +24
 - N2 0.1                             2489   3.0-1.0   (+3 -1 =0 )  100.0  +147
 - Arasan 11.4 32-bit                 2487   5.0-3.0   (+3 -1 =4 )  100.0   -15
 - Cerebro 3.03d                      2481   5.0-3.0   (+4 -2 =2 )  100.0    -6
 - BBChess 1.3b                       2477   5.0-3.0   (+3 -1 =4 )  100.0   -15
 - Anatoli 0.35k                      2475   6.0-2.0   (+6 -2 =0 )  100.0  +125
 - Philou 3.0.0                       2455   2.5-1.5   (+2 -1 =1 )  100.0   -35


Created in 2005-2013 by CCRL team
Last games added on July 11, 2019