CCRL 40/4
Downloads and Statistics
July 20, 2019
Testing summary:
Total: 2'069'919 games
played by 2'400 programs
27811 CPU days (X2 4600+)

White wins: 804'066 (38.8%)
Black wins: 650'528 (31.4%)
Draws: 615'325 (29.7%)
White score: 53.7%

Engine Details

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Amoeba 2.5 64-bit in CCRL 40/4, 2019-07-20
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 Intel CPU.
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

CCRL 40/4 main list:
Amoeba 2.5 64-bit has no rank with rating of 2864 Elo points (+19 -19),
based on 925 games: 285 wins, 291 losses and 349 draws
Score: 49.7%, Average opponent: +1.4, Draws: 37.7%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Crafty 25.2 64-bit                 2933  16.0-16.0  (+10-10=12)    0.0   +71
 - Spark 1.0 64-bit                   2927   9.0-23.0  (+3 -17=12)    0.0   -79
 - Spike 1.4 Leiden                   2921  14.5-17.5  (+8 -11=13)    0.0   +25
 - EXchess 7.97b 64-bit               2913  12.5-19.5  (+6 -13=13)    0.0   -18
 - Rodent III 0.172 64-bit            2908  17.5-14.5  (+12-9 =11)    0.0   +72
 - ChessBrainVB 3.50                  2906  13.5-18.5  (+8 -13=11)    0.0    -9
 - Zurichess Neuchatel 64-bit         2900  13.5-15.5  (+7 -9 =13)    0.0   +17
 - Quazar 0.4 64-bit                  2899  14.5-17.5  (+7 -10=15)    0.0    +8
 - Deep Junior Yokohama 64-bit        2898  14.0-17.0  (+6 -9 =16)    0.1    +5
 - Thinker 5.4d Inert 64-bit          2885  19.0-13.0  (+13-7 =12)    2.0   +83
 - Demolito 2017-06-18 64-bit         2884  13.5-18.5  (+9 -14=9 )    6.6   -33
 - Deuterium 14.3.34.130 64-bit       2883  13.5-18.5  (+7 -12=13)    4.0   -32
 - Murka 3 64-bit                     2882  11.5-20.5  (+7 -16=9 )    4.3   -79
 - Atlas 3.80 64-bit                  2874   9.5-22.5  (+5 -18=9 )   17.3  -132
 - Gaviota 1.0 64-bit                 2872  18.0-14.0  (+10-6 =16)   22.3   +44
 - MinkoChess 1.3 64-bit              2869  23.5-8.5   (+19-4 =9 )   32.5  +169
 - DisasterArea 1.65 64-bit           2864  11.5-20.5  (+2 -11=19)   51.3   -76
 - Dirty 30Apr2017 64-bit             2864  17.0-15.0  (+12-10=10)   49.6   +16
 - Nemo 1.0.1 64-bit                  2857  17.5-14.5  (+12-9 =11)   78.2   +21
 - Onno 1.2.70 64-bit                 2845  19.5-12.5  (+14-7 =11)   96.8   +54
 - Zurichess Luzern 64-bit            2844  16.5-15.5  (+8 -7 =17)   95.3   -11
 - Defenchess (SCTR) 1.0 64-bit       2844  14.0-18.0  (+7 -11=14)   94.4   -61
 - Zappa Mexico II 64-bit             2843  18.0-14.0  (+10-6 =16)   98.3   +19
 - Deep Sjeng WC2008 64-bit           2842  17.5-14.5  (+14-11=7 )   98.0   +14
 - Tornado 8.0 64-bit                 2825  17.5-14.5  (+14-11=7 )  100.0    -4
 - Rhetoric 1.4.3 64-bit              2804  20.5-11.5  (+16-7 =9 )  100.0   +35
 - ChessBrainVB 3.20                  2804  14.5-16.5  (+8 -10=13)  100.0   -81
 - Fruit 2.3.1                        2780  15.5-9.5   (+12-6 =7 )  100.0    +3
 - RuyDos 1.0.27 64-bit               2758   7.0-4.0   (+6 -3 =2 )  100.0    +7
 - chess22k 1.5 64-bit                2739  19.5-10.5  (+13-4 =13)  100.0   -29


Created in 2005-2013 by CCRL team
Last games added on July 20, 2019