CCRL 40/4
Downloads and Statistics
November 30, 2019
Testing summary:
Total: 2'140'277 games
played by 2'505 programs
29019 CPU days (X2 4600+)

White wins: 829'307 (38.7%)
Black wins: 669'765 (31.3%)
Draws: 641'205 (30.0%)
White score: 53.7%

Custom engine selection

Comparing 7 engines!
7 selected engines played 0 games with each other

CCRL 40/4 Rating List — Custom engine selection (Quote)

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 CPU.
Computed on November 30, 2019 with Bayeselo based on 2'140'277 games

Color legend: Commercial, Free, Open source, Private.
Bold font - tested with 300 games or more. Normal font - less than 300 games.

RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
Elo+
1BugChess2 1.9 64-bit 4CPU2842+18−1850.0%−1.832.6%1034 
100.0%
 BugChess2 1.9 64-bit2759+8−848.2%+13.528.7%5847
100.0%
 BugChess2 1.7 64-bit2707+13−1344.3%+50.730.5%2174
100.0%
 BugChess2 1.6.4 64-bit2669+14−1448.9%+11.629.0%1861
53.6%
 BugChess2 1.6.3 64-bit2668+18−1852.7%−19.030.5%1052
100.0%
 BugChess2 1.6.2 64-bit2594+21−2151.7%−13.426.9%789
100.0%
 BugChess2 1.5.22547+14−1450.9%−7.328.3%1861
 

Results matrix

Custom engine selection
#NameElo1234567
1BugChess2 1.9 64-bit 4CPU2842       
2BugChess2 1.9 64-bit2759       
3BugChess2 1.7 64-bit2707       
4BugChess2 1.6.4 64-bit2669       
5BugChess2 1.6.3 64-bit2668       
6BugChess2 1.6.2 64-bit2594       
7BugChess2 1.5.22547       
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

Custom engine selection
#NameElo1234567
1BugChess2 1.9 64-bit 4CPU2842 100.0100.0100.0100.0100.0100.0
2BugChess2 1.9 64-bit27590.0 100.0100.0100.0100.0100.0
3BugChess2 1.7 64-bit27070.00.0 100.0100.0100.0100.0
4BugChess2 1.6.4 64-bit26690.00.00.0 53.6100.0100.0
5BugChess2 1.6.3 64-bit26680.00.00.046.4 100.0100.0
6BugChess2 1.6.2 64-bit25940.00.00.00.00.0 100.0
7BugChess2 1.5.225470.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo1234567
1BugChess2 1.9 64-bit 4CPU2842 9748124851641640
2BugChess2 1.9 64-bit2759974 17471329523454404
3BugChess2 1.7 64-bit27078121747 22241141821641
4BugChess2 1.6.4 64-bit266948513292224 1338890868
5BugChess2 1.6.3 64-bit266816452311411338 1073577
6BugChess2 1.6.2 64-bit25941644548218901073 826
7BugChess2 1.5.225470404641868577826 
Number of connecting games color legend:
0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000

Percentage of connecting games matrix

Custom engine selection
#NameElo1234567
1BugChess2 1.9 64-bit 4CPU2842 14.225.316.87.99.00.0
2BugChess2 1.9 64-bit275914.2 21.817.27.66.85.2
3BugChess2 1.7 64-bit270725.321.8 55.135.427.715.9
4BugChess2 1.6.4 64-bit266916.817.255.1 45.933.623.3
5BugChess2 1.6.3 64-bit26687.97.635.445.9 58.319.8
6BugChess2 1.6.2 64-bit25949.06.827.733.658.3 31.2
7BugChess2 1.5.225470.05.215.923.319.831.2 
Percentage of connecting games color legend:
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Score with 76 common opponents

Custom engine selection
NameEloBugChess2
1.9
64-bit
4CPU
BugChess2
1.9
64-bit
BugChess2
1.7
64-bit
BugChess2
1.6.4
64-bit
BugChess2
1.6.3
64-bit
BugChess2
1.6.2
64-bit
BugChess2
1.5.2
Rybka 2.3.2a 64-bit2977 27%
8.5/32
 17%
5.5/32
   
Komodo 1.2 64-bit2966  20%
6.5/32
11%
3.5/32
   
Gull 1.0a 64-bit293837%
18.5/50
 22%
7/32
    
Spark 1.0 64-bit292643%
21.5/50
28%
10.5/38
8%
2.5/32
    
Spike 1.4 Leiden2921 26%
11.5/44
30%
9/30
    
Hannibal 1.1 64-bit289537%
18/49
33%
10.5/32
     
Protector 1.4.0 64-bit288944%
21.5/49
31%
10/32
22%
6.5/30
    
Thinker 5.4c Inert 64-bit2883 25%
8/32
36%
11.5/32
25%
7.5/30
   
Hannibal 1.0a 64-bit2861  28%
17.5/62
10%
3/30
   
Protector 1.3.5 64-bit2855  17%
5.5/32
36%
10.5/29
   
Zappa Mexico II 64-bit284454%
27/50
36%
13.5/37
     
Booot 5.1.0283847%
23/49
41%
13/32
33%
10.5/32
    
Toga II 1.4.1SE282354%
27/50
44%
14/32
 38%
11.5/30
   
Crafty 23.4 64-bit2781 50%
16/32
39%
12.5/32
    
Ktulu 92781 0%
0/1
48%
15/31
39%
12.5/32
27%
9/33
  
Bright 0.4a277968%
34/50
42%
5/12
52%
16.5/32
40%
12/30
   
Loop 13.6 (Loop 2007) 32-bit2775 47%
15/32
 45%
13/29
   
Scorpio 2.7 64-bit2775 44%
14/32
50%
16/32
    
Bright 0.5c2771 46%
15.5/34
 37%
11/30
   
MinkoChess 0.9 64-bit2770 41%
13/32
39%
12.5/32
28%
8.5/30
   
NameEloBugChess2
1.9
64-bit
4CPU
BugChess2
1.9
64-bit
BugChess2
1.7
64-bit
BugChess2
1.6.4
64-bit
BugChess2
1.6.3
64-bit
BugChess2
1.6.2
64-bit
BugChess2
1.5.2
Twisted Logic 20090922 64-bit2770 41%
13/32
42%
13/31
31%
10/32
   
Frenzee 3.5.19 64-bit276966%
33/50
33%
2/6
     
Twisted Logic 20100131x 64-bit2766 50%
0.5/1
 53%
17/32
   
Jonny 4.002762 54%
21/39
41%
13/32
    
Bison 9.11 64-bit2761 50%
17.5/35
45%
14.5/32
34%
10/29
   
Crafty 23.3 64-bit2757  42%
12.5/30
45%
13.5/30
   
Scorpio 2.6 64-bit2755  40%
12/30
30%
9/30
   
SmarThink 1.20 64-bit2747  42%
13.5/32
39%
12.5/32
   
Chronos 1.9.9 64-bit273961%
30.5/50
51%
21/41
48%
15.5/32
36%
11.5/32
   
Spike 1.2 Turin2731  42%
13.5/32
48%
15.5/32
31%
10/32
34%
11/32
 
Tornado 4.40 64-bit272163%
31/49
64%
20.5/32
56%
17.5/31
    
Chess Tiger 2007.12713 100%
1/1
45%
14.5/32
38%
12/32
44%
14/32
27%
8.5/32
 
Naum 2.0 32-bit2699 52%
16/31
55%
17.5/32
26%
7.5/29
   
Frenzee Feb08 64-bit2694 58%
18.5/32
39%
12.5/32
53%
17/32
47%
15/32
42%
13.5/32
 
Delfi 5.42682 55%
18/33
55%
17.5/32
    
Daydreamer 1.75 64-bit267271%
35.5/50
70%
22.5/32
56%
18/32
40%
12/30
   
Booot 4.15.02665  48%
15.5/32
56%
18/32
66%
21/32
  
SmarThink 1.00 32-bit2664    47%
15/32
41%
13/32
 
Alaric 707266381%
40.5/50
58%
19/33
58%
18.5/32
41%
13/32
62%
20/32
36%
11.5/32
 
Colossus 2008b2641 69%
23.5/34
55%
17.5/32
58%
18.5/32
71%
22/31
 43%
14.5/34
NameEloBugChess2
1.9
64-bit
4CPU
BugChess2
1.9
64-bit
BugChess2
1.7
64-bit
BugChess2
1.6.4
64-bit
BugChess2
1.6.3
64-bit
BugChess2
1.6.2
64-bit
BugChess2
1.5.2
Cyrano 0.6b17 64-bit2641 70%
22.5/32
61%
19.5/32
48%
14.5/30
   
Chronos 1.9.72638   53%
16.5/31
47%
15/32
  
E.T. Chess 13.01.082634 72%
23/32
53%
16.5/31
53%
17/32
64%
20.5/32
39%
12.5/32
39%
12.5/32
Gandalf 62627  53%
17/32
55%
17.5/32
47%
15/32
45%
14.5/32
 
Alfil 8.1.1 Optimized2625 72%
23/32
53%
17/32
66%
21/32
42%
13/31
47%
15/32
30%
9.5/32
WildCat 82623 56%
18.5/33
48%
15.5/32
56%
18/32
50%
16/32
50%
13.5/27
34%
11/32
Movei 00.8.438 (10 10 10)262280%
40/50
74%
24.5/33
65%
19.5/30
56%
17.5/31
56%
18/32
45%
14.5/32
 
Sloppy 0.2.2 64-bit2616  61%
19/31
55%
17.5/32
50%
16/32
  
Slow Chess Blitz WV2.12614 73%
22.5/31
61%
19/31
52%
16.5/32
59%
19/32
41%
13/32
34%
11/32
Booot 4.14.02611    50%
15/30
39%
12.5/32
 
Colossus 2007d2610     27%
8.5/32
31%
10/32
Ruffian 2.1.02608  70%
21/30
62%
18.5/30
67%
21.5/32
  
Sloppy 0.2.0 64-bit2607    58%
18.5/32
72%
23/32
42%
13.5/32
Amyan 1.722603 50%
1/2
73%
23.5/32
    
Pharaon 3.5.12603 71%
23.5/33
70%
22.5/32
   44%
14/32
GarboChess 2.10 64-bit2598  69%
21.5/31
69%
22/32
61%
19/31
75%
24/32
 
Hamsters 0.7.12578   60%
18/30
  54%
18.5/34
Pseudo 0.7c2575 50%
0.5/1
    47%
15/32
SOS 5.12573 50%
0.5/1
    42%
13.5/32
Critter 0.40 32-bit2567   67%
21.5/32
66%
21/32
  
NameEloBugChess2
1.9
64-bit
4CPU
BugChess2
1.9
64-bit
BugChess2
1.7
64-bit
BugChess2
1.6.4
64-bit
BugChess2
1.6.3
64-bit
BugChess2
1.6.2
64-bit
BugChess2
1.5.2
Hamsters 0.62559     53%
17/32
47%
15/32
Brutus 8.05 64-bit2556 100%
1/1
 66%
18.5/28
   
Petir 4.9999992555  67%
21.5/32
77%
24.5/32
70%
22.5/32
67%
21.5/32
34%
11/32
The Baron 2.23 64-bit2555  72%
23/32
69%
22/32
52%
16.5/32
 47%
16/34
Jonny 2.83 32-bit2551  70%
22.5/32
   38%
12/32
Anaconda 2.0.12545   66%
21/32
  50%
16/32
The Baron 1.8.12544     58%
18.5/32
55%
17.5/32
Amyan 1.622542   70%
22.5/32
69%
22/32
  
Ufim 8.022540 100%
1/1
81%
25/31
69%
22/32
 58%
18.5/32
33%
10.5/32
AnMon 5.752538  73%
22.5/31
72%
23/32
   
Little Goliath Evolution 3.122504 100%
1/1
 62%
20/32
  59%
38/64
Yace 0.99.872503   62%
20/32
  42%
13.5/32
Trace 1.37a2500   62%
20/32
 61%
19.5/32
53%
17/32
Cerebro 3.03d2471    83%
26.5/32
73%
19/26
 
SpiderChess 0706032439 100%
1/1
  78%
25/32
66%
21/32
58%
18/31
Matacz 1.12399     62%
20/32
77%
24.5/32
Score color legend:
(Only pairs with at least 30 games)
0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100%

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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):
Limit crosstables to engines in Elo range: to
Match length (Minimum number of games to highlight with color):

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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 November 30, 2019