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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Ethereal 8.61 64-bit 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:
Ethereal 8.61 64-bit has no rank with rating of 2862 Elo points (+22 -22),
based on 656 games: 208 wins, 188 losses and 260 draws
Score: 51.5%, Average opponent: −11.1, Draws: 39.6%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Ethereal 8.81 64-bit               2945   6.0-14.0  (+1 -9 =10)    0.0   -38
 - DiscoCheck 5.2.1 64-bit            2914   9.5-17.5  (+3 -11=13)    0.0   -34
 - Demolito 2017-08-26 64-bit         2911  12.5-16.5  (+7 -11=11)    0.0    +3
 - ChessBrainVB 3.60                  2907  11.0-14.0  (+6 -9 =10)    1.1    +5
 - Zurichess Neuchatel 64-bit         2901  25.5-28.5  (+13-16=25)    0.1   +20
 - Quazar 0.4 64-bit                  2900  29.0-28.0  (+16-15=26)    0.1   +44
 - Scorpio 2.7.9 64-bit               2885  13.0-17.0  (+6 -10=14)    6.6   -13
 - Deuterium 14.3.34.130 64-bit       2883  13.0-15.0  (+8 -10=10)    4.2    -2
 - Murka 3 64-bit                     2882  22.0-35.0  (+12-25=20)    4.7   -55
 - Atlas 3.80 64-bit                  2875  27.0-29.0  (+16-18=22)   15.1     0
 - Nemo 1.0.1 64-bit                  2857  21.0-9.0   (+15-3 =12)   67.0  +123
 - Scorpio 2.7.8 64-bit               2848  12.5-15.5  (+8 -11=9 )   80.5   -50
 - Ktulu 9                            2781  19.0-14.0  (+12-7 =14)  100.0   -33
 - The Baron 3.42 64-bit              2780  36.0-26.0  (+23-13=26)  100.0   -31
 - Bright 0.5c                        2772  15.5-13.5  (+11-9 =9 )  100.0   -66
 - Twisted Logic 20100131x 64-bit     2766  22.0-7.0   (+17-2 =10)  100.0   +78
 - Bison 9.11 64-bit                  2761  19.5-9.5   (+15-5 =9 )  100.0   +16
 - Gogobello 1.4 64-bit               2755   2.5-1.5   (+2 -1 =1 )  100.0   -11
 - Tucano 6.00 64-bit                 2750  21.5-7.5   (+17-3 =9 )  100.0   +54


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