CCRL 40/40
Downloads and Statistics
August 17, 2019
Testing summary:
Total: 1'075'629 games
played by 2'520 programs
147029 CPU days (X2 4600+)

White wins: 373'444 (34.7%)
Black wins: 277'846 (25.8%)
Draws: 424'339 (39.5%)
White score: 54.4%

Open source 32-bit multi-CPU engines

Comparing 8 engines!
4 best versions of selected engines played 0 games with each other

CCRL 40/40 Rating List — Open source 32-bit multi-CPU engines (Quote)

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.
Computed on August 17, 2019 with Bayeselo based on 1'075'629 games

Color legend: Commercial, Free, Open source, Private.
Bold font - tested with 200 games or more. Normal font - less than 200 games.

RankNameRatingScoreAverage
Opponent		DrawsGamesLOS
Elo+−
1ChessBrainVB 3.72 4CPU3172+31−3145.5%+26.950.7%302 
98.9%
 ChessBrainVB 3.68 4CPU3124+26−2649.2%+3.651.6%428
81.3%
 ChessBrainVB 3.66 4CPU3106+28−2854.2%−27.148.7%378
100.0%
2Toga II 3.0 4CPU2919+22−2245.6%+27.049.0%592
85.5%
 Toga II 1.4.1SE 4CPU2905+13−1348.5%+10.441.6%2041
96.2%
 Toga II 1.4 beta5c 4CPU2885+18−1851.7%−11.945.8%996
100.0%
3Scorpio 2.0 32-bit 4CPU2732+24−2433.4%+114.936.7%607
100.0%
4Nemeton 1.8 4CPU2529+27−2749.9%+1.927.2%496
 

Results matrix

Open source 32-bit multi-CPU engines (best versions only)
#NameElo1
Chess
2
Toga
3
Scorp
4
Nemet
1ChessBrainVB 3.72 4CPU3172    
2Toga II 3.0 4CPU2919    
3Scorpio 2.0 32-bit 4CPU2732    
4Nemeton 1.8 4CPU2529    
Performance color legend:
(Only pairs with at least 30 games)
-120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120

LOS matrix

Open source 32-bit multi-CPU engines (best versions only)
#NameElo1
Che
2
Tog
3
Sco
4
Nem
1ChessBrainVB 3.72 4CPU3172 100.0100.0100.0
2Toga II 3.0 4CPU29190.0 100.0100.0
3Scorpio 2.0 32-bit 4CPU27320.00.0 100.0
4Nemeton 1.8 4CPU25290.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

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Rating list
Testing profile
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Results table
Performance table
Score table
LOS table
Proportion of draws
Number of games
Number of connecting games
Percentage of connecting games
 Score with common opponents
Score with all opponents
Performance with common opponents
Performance with all opponents
LOS with common opponents
LOS with all opponents

Maximum size of cross-tables (from 2 to 100):
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Match length (Minimum number of games to highlight with color):

Cross-tables show only best version of each engine
Sort cross-tables by:   Rating   Name
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Reference rating list:
Recalibrate:
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  Recalibrate current list to reference using all common engines

Created in 2005-2013 by CCRL team
Last games added on August 17, 2019