CCRL 40/4
Downloads and Statistics
October 19, 2019
Testing summary:
Total: 2'120'567 games
played by 2'479 programs
28673 CPU days (X2 4600+)

White wins: 822'832 (38.8%)
Black wins: 665'262 (31.4%)
Draws: 632'473 (29.8%)
White score: 53.7%

Engine Details

Options
Show each game results
Critter 0.80 64-bit in CCRL 40/4, 2019-10-19
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 4 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 1.5 minutes on a modern CPU.
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/404/

CCRL 40/4 main list:
Critter 0.80 64-bit has no rank with rating of 2990 Elo points (+21 -20),
based on 1007 games: 604 wins, 112 losses and 291 draws
Score: 74.4%, Average opponent: −188.9, Draws: 28.9%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 1.5a 64-bit                3170  10.0-22.0  (+3 -15=14)    0.0   +63
 - Stockfish 1.8 64-bit               3057  12.5-19.5  (+6 -13=13)    0.0     0
 - Stockfish 1.9.1 64-bit             3054  11.5-18.5  (+5 -12=13)    0.0    -6
 - Rybka 2.3.2a 64-bit                2977  16.5-15.5  (+10-9 =13)   87.9    -3
 - Komodo 1.2 64-bit                  2966  19.0-13.0  (+11-5 =16)   97.9   +32
 - Gull 1.0a 64-bit                   2938  19.0-11.0  (+10-2 =18)  100.0   +21
 - Thinker 5.4c Inert 64-bit          2883  18.0-13.0  (+11-6 =14)  100.0   -58
 - Spark 0.4 64-bit                   2882  22.0-10.0  (+16-4 =12)  100.0   +17
 - Hannibal 1.0a 64-bit               2861  24.5-7.5   (+21-4 =7 )  100.0   +70
 - Protector 1.3.5 64-bit             2855  21.0-8.0   (+16-3 =10)  100.0   +12
 - Booot 5.0                          2784  24.0-5.0   (+21-2 =6 )  100.0   +47
 - Ktulu 9                            2781  25.5-5.5   (+21-1 =9 )  100.0   +22
 - Loop 13.6 (Loop 2007) 32-bit       2775  24.5-7.5   (+20-3 =9 )  100.0   -27
 - Bright 0.5c                        2771  26.0-6.0   (+20-0 =12)  100.0    -8
 - MinkoChess 0.9 64-bit              2770  26.5-5.5   (+23-2 =7 )  100.0   +32
 - Twisted Logic 20090922 64-bit      2770  25.0-7.0   (+22-4 =6 )  100.0    -1
 - MinkoChess 1.0 64-bit              2768  23.0-7.0   (+19-3 =8 )  100.0   -31
 - Bison 9.11 64-bit                  2761  26.0-6.0   (+22-2 =8 )  100.0     0
 - Crafty 23.3 64-bit                 2757  26.0-6.0   (+24-4 =4 )  100.0   +31
 - Scorpio 2.6 64-bit                 2755  25.0-7.0   (+18-0 =14)  100.0   -54
 - SmarThink 1.20 64-bit              2747  24.0-7.0   (+18-1 =12)  100.0   -63
 - Chronos 1.9.9 64-bit               2739  26.0-6.0   (+22-2 =8 )  100.0   -18
 - Spike 1.2 Turin                    2731  27.5-4.5   (+24-1 =7 )  100.0   +22
 - Chess Tiger 2007.1                 2713  25.5-5.5   (+22-2 =7 )  100.0   -31
 - BugChess2 1.7 64-bit               2707  27.5-4.5   (+25-2 =5 )  100.0   +17
 - Frenzee Feb08 64-bit               2694  28.5-3.5   (+28-3 =1 )  100.0   +96
 - Naum 2.0 64-bit                    2693  27.0-4.0   (+24-1 =6 )  100.0    +2
 - Delfi 5.4                          2682  28.0-4.0   (+25-1 =6 )  100.0    -2
 - Daydreamer 1.75 64-bit             2672  28.0-4.0   (+25-1 =6 )  100.0    -9
 - Booot 4.15.1                       2668  27.0-5.0   (+22-0 =10)  100.0   -75
 - Colossus 2008b                     2641  29.0-3.0   (+27-1 =4 )  100.0   +17
 - E.T. Chess 13.01.08                2634  26.0-6.0   (+23-3 =6 )  100.0  -111


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