CCRL 40/40
Downloads and Statistics
July 19, 2019
Testing summary:
Total: 1'068'538 games
played by 2'502 programs
146028 CPU days (X2 4600+)

White wins: 371'241 (34.7%)
Black wins: 276'263 (25.9%)
Draws: 421'034 (39.4%)
White score: 54.4%

Engine Details

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Scorpio 2.8.5 MCTS 64-bit in CCRL 40/40, 2019-07-19
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:
Scorpio 2.8.5 MCTS 64-bit has no rank with rating of 2703 Elo points (+17 -17),
based on 1166 games: 373 wins, 451 losses and 342 draws
Score: 46.7%, Average opponent: +23.7, Draws: 29.3%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Atlas 3.91 64-bit                  2899   9.0-43.0  (+3 -37=12)    0.0   -53
 - Gaviota 1.0 64-bit                 2859  12.0-32.0  (+5 -25=14)    0.0    -1
 - Dirty 30Apr2017 64-bit             2856  13.0-33.0  (+3 -23=20)    0.0   +17
 - Fruit Reloaded 3.2.1 64-bit        2832  16.0-30.0  (+10-24=12)    0.0   +20
 - Zurichess Neuchatel 64-bit         2820  10.0-34.0  (+3 -27=14)    0.0   -71
 - Rhetoric 1.4.3 64-bit              2794  15.5-28.5  (+11-24=9 )    0.0   -18
 - Pawny 1.2 64-bit                   2776  19.0-25.0  (+12-18=14)    0.0   +27
 - BugChess2 1.9 64-bit               2761  16.5-29.5  (+10-23=13)    0.0   -40
 - Godel 4.0.7 64-bit                 2758  22.5-27.5  (+17-22=11)    0.0   +16
 - Bison 9.11 64-bit                  2755  15.5-30.5  (+8 -23=15)    0.0   -60
 - Carballo 1.7 64-bit                2738   9.0-7.0   (+4 -2 =10)    0.1   +69
 - Marvin 3.0.0 64-bit                2730  20.5-23.5  (+15-18=11)    3.0    +2
 - ProDeo 2.2                         2721   9.0-7.0   (+6 -4 =6 )    6.8   +60
 - Shield 2.0 64-bit                  2712   9.5-18.5  (+5 -14=9 )   27.5  -100
 - GreKo 2018.07 64-bit               2707  17.0-19.0  (+11-13=12)   36.8   -14
 - Cheese 1.9 64-bit                  2703  25.5-20.5  (+20-15=11)   50.6   +39
 - Pirarucu 2.2.2 64-bit              2696   4.5-5.5   (+2 -3 =5 )   71.9   -34
 - Gogobello 1.4 64-bit               2687  24.5-19.5  (+18-13=13)   92.2   +18
 - WyldChess 1.51 64-bit              2683  28.0-16.0  (+23-11=10)   96.2   +77
 - Chessmaster 11 Toxic               2679   8.0-8.0   (+5 -5 =6 )   96.5   -24
 - chess22k 1.4 64-bit                2674   6.5-3.5   (+5 -2 =3 )   97.7   +77
 - Counter 2.7 64-bit                 2673   5.5-4.5   (+3 -2 =5 )   97.0    +1
 - Arminius 2017-01-01 64-bit         2672  27.5-18.5  (+21-12=13)   99.6   +35
 - Counter 2.8 64-bit                 2670   4.0-4.0   (+2 -2 =4 )   98.5   -38
 - Djinn 1.021 64-bit                 2668   4.0-6.0   (+1 -3 =6 )   99.9   -90
 - RedQueen 1.1.98 64-bit             2665  12.0-16.0  (+9 -13=6 )   99.9   -91
 - Floyd 0.9 64-bit                   2657  26.5-13.5  (+24-11=5 )  100.0   +82
 - tomitankChess 2.0 64-bit           2656  14.5-15.5  (+8 -9 =13)  100.0   -55
 - Philou 3.7.1 64-bit                2652  22.0-16.0  (+17-11=10)  100.0    +5
 - Cyrano 0.6b17 64-bit               2647   9.0-2.0   (+8 -1 =2 )  100.0  +194
 - GreKo 2018.01 64-bit               2644   6.0-4.0   (+5 -3 =2 )  100.0    +9
 - Amoeba 1.2 64-bit                  2640   6.5-3.5   (+6 -3 =1 )  100.0   +62
 - WyldChess 1.4 64-bit               2638   5.0-4.0   (+3 -2 =4 )  100.0   -24
 - CM10th Guardian                    2638   6.0-4.0   (+5 -3 =2 )  100.0    +4
 - tomitankChess 2.1 64-bit           2635   7.0-3.0   (+6 -2 =2 )  100.0   +85
 - Counter 2.6 64-bit                 2633   6.5-3.5   (+6 -3 =1 )  100.0   +48
 - Igel 1.2 64-bit                    2627   6.5-3.5   (+5 -2 =3 )  100.0   +28
 - NoraGrace 2.0 64-bit               2625   6.0-4.0   (+5 -3 =2 )  100.0    -8
 - Nebula 2.0 64-bit                  2622   7.0-3.0   (+5 -1 =4 )  100.0   +48
 - Scorpio 2.9 MCTS+NN 64-bit         2620  25.5-16.5  (+19-10=13)  100.0    -8
 - DanaSah 7.0                        2617   7.0-3.0   (+5 -1 =4 )  100.0   +42
 - K2 0.91                            2615   7.0-5.0   (+6 -4 =2 )  100.0   -21
 - RubiChess 1.0 64-bit               2615   6.5-3.5   (+5 -2 =3 )  100.0   +11
 - Monolith 0.4 64-bit                2607   5.5-4.5   (+3 -2 =5 )  100.0   -68


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