CCRL 40/4
Downloads and Statistics
September 14, 2019
Testing summary:
Total: 2'097'576 games
played by 2'442 programs
28220 CPU days (X2 4600+)

White wins: 814'639 (38.8%)
Black wins: 658'954 (31.4%)
Draws: 623'983 (29.7%)
White score: 53.7%

Engine Details

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Grapefruit 1.0 a2b in CCRL 40/4, 2019-09-14
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:
Grapefruit 1.0 a2b has no rank with rating of 2810 Elo points (+23 -22),
based on 648 games: 200 wins, 209 losses and 239 draws
Score: 49.3%, Average opponent: +4.1, Draws: 36.9%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Rybka 2.3.2a 64-bit                2977  16.0-34.0  (+7 -25=18)    0.0   +47
 - Naum 3.1 64-bit                    2863  25.0-25.0  (+15-15=20)    0.0   +54
 - Naum 3 64-bit                      2854  19.0-31.0  (+9 -21=20)    0.1   -32
 - Zappa Mexico II 64-bit             2844  23.0-27.0  (+11-15=24)    0.2    +8
 - Deep Shredder 11 64-bit            2842  21.5-27.5  (+12-18=19)    0.5    -5
 - Deep Sjeng 3.0 64-bit              2838  24.0-26.0  (+17-19=14)    1.2   +15
 - Hiarcs 12                          2835  17.5-32.5  (+9 -24=17)    2.3   -73
 - Loop M1-T 64-bit                   2786  30.0-20.0  (+16-6 =28)   96.2   +33
 - Glaurung 2.1 64-bit                2783  23.0-27.0  (+16-20=14)   97.8   -55
 - Bright 0.3b                        2753  28.0-21.0  (+21-14=14)  100.0    -7
 - Glaurung 2.0.1 64-bit              2740  32.5-17.5  (+23-8 =19)  100.0   +26
 - Bright 0.3d                        2736  27.5-22.5  (+20-15=15)  100.0   -41
 - Spike 1.2 Turin                    2731  32.5-17.5  (+24-9 =17)  100.0   +21


Created in 2005-2013 by CCRL team
Last games added on September 14, 2019