CCRL 40/4
Downloads and Statistics
June 15, 2019
Testing summary:
Total: 2'051'440 games
played by 2'369 programs
27518 CPU days (X2 4600+)

White wins: 797'129 (38.9%)
Black wins: 645'243 (31.5%)
Draws: 609'068 (29.7%)
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 Intel CPU.
Computed on June 15, 2019 with Bayeselo based on 2'051'440 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 4CPU2843+18−1850.0%−2.432.6%1034 
100.0%
 BugChess2 1.9 64-bit2759+8−848.2%+13.728.8%5617
100.0%
 BugChess2 1.7 64-bit2707+13−1344.3%+51.330.5%2174
100.0%
 BugChess2 1.6.4 64-bit2670+14−1448.9%+11.229.0%1861
53.5%
 BugChess2 1.6.3 64-bit2669+18−1852.7%−19.530.5%1052
100.0%
 BugChess2 1.6.2 64-bit2595+21−2151.7%−13.926.9%789
100.0%
 BugChess2 1.5.22548+14−1450.9%−7.828.3%1861
 

Results matrix

Custom engine selection
#NameElo1234567
1BugChess2 1.9 64-bit 4CPU2843       
2BugChess2 1.9 64-bit2759       
3BugChess2 1.7 64-bit2707       
4BugChess2 1.6.4 64-bit2670       
5BugChess2 1.6.3 64-bit2669       
6BugChess2 1.6.2 64-bit2595       
7BugChess2 1.5.22548       
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 4CPU2843 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-bit26700.00.00.0 53.5100.0100.0
5BugChess2 1.6.3 64-bit26690.00.00.046.5 100.0100.0
6BugChess2 1.6.2 64-bit25950.00.00.00.00.0 100.0
7BugChess2 1.5.225480.00.00.00.00.00.0 
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 4CPU2843 9748124851641640
2BugChess2 1.9 64-bit2759974 17431322519453400
3BugChess2 1.7 64-bit27078121743 22241141821641
4BugChess2 1.6.4 64-bit267048513222224 1338890868
5BugChess2 1.6.3 64-bit266916451911411338 1073577
6BugChess2 1.6.2 64-bit25951644538218901073 826
7BugChess2 1.5.225480400641868577826 
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 4CPU2843 14.625.316.87.99.00.0
2BugChess2 1.9 64-bit275914.6 22.417.77.87.15.3
3BugChess2 1.7 64-bit270725.322.4 55.135.427.715.9
4BugChess2 1.6.4 64-bit267016.817.755.1 45.933.623.3
5BugChess2 1.6.3 64-bit26697.97.835.445.9 58.319.8
6BugChess2 1.6.2 64-bit25959.07.127.733.658.3 31.2
7BugChess2 1.5.225480.05.315.923.319.831.2 
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-bit2967  20%
6.5/32
11%
3.5/32
   
Gull 1.0a 64-bit293837%
18.5/50
 22%
7/32
    
Spark 1.0 64-bit292743%
21.5/50
28%
10.5/38
8%
2.5/32
    
Spike 1.4 Leiden2922 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-bit2862  28%
17.5/62
10%
3/30
   
Protector 1.3.5 64-bit2856  17%
5.5/32
36%
10.5/29
   
Zappa Mexico II 64-bit284354%
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-bit2782 50%
16/32
39%
12.5/32
    
Ktulu 92782  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 0.5c2773 46%
15.5/34
 37%
11/30
   
MinkoChess 0.9 64-bit2771 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-bit2771 41%
13/32
42%
13/31
31%
10/32
   
Frenzee 3.5.19 64-bit276866%
33/50
33%
2/6
     
Twisted Logic 20100131x 64-bit2766 50%
0.5/1
 53%
17/32
   
Jonny 4.002763 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-bit2758  42%
12.5/30
45%
13.5/30
   
Scorpio 2.6 64-bit2756  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-bit272263%
31/49
64%
20.5/32
56%
17.5/31
    
Chess Tiger 2007.12714 100%
1/1
45%
14.5/32
38%
12/32
44%
14/32
27%
8.5/32
 
Naum 2.0 32-bit2700 52%
16/31
55%
17.5/32
26%
7.5/29
   
Frenzee Feb08 64-bit2695 58%
18.5/32
39%
12.5/32
53%
17/32
47%
15/32
42%
13.5/32
 
Delfi 5.42684 55%
18/33
55%
17.5/32
    
Daydreamer 1.75 64-bit267371%
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
  
Alaric 707266481%
40.5/50
58%
19/33
58%
18.5/32
41%
13/32
62%
20/32
36%
11.5/32
 
SmarThink 1.00 32-bit2664    47%
15/32
41%
13/32
 
Colossus 2008b2642 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-bit2642 70%
22.5/32
61%
19.5/32
48%
14.5/30
   
Chronos 1.9.72639   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
Movei 00.8.438 (10 10 10)262380%
40/50
74%
24.5/33
65%
19.5/30
56%
17.5/31
56%
18/32
45%
14.5/32
 
WildCat 82623 58%
18.5/32
48%
15.5/32
56%
18/32
50%
16/32
50%
13.5/27
34%
11/32
Sloppy 0.2.2 64-bit2617  61%
19/31
55%
17.5/32
50%
16/32
  
Slow Chess Blitz WV2.12615 73%
22.5/31
61%
19/31
52%
16.5/32
59%
19/32
41%
13/32
34%
11/32
Booot 4.14.02612    50%
15/30
39%
12.5/32
 
Colossus 2007d2611     27%
8.5/32
31%
10/32
Ruffian 2.1.02610  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 1.722604 50%
1/2
73%
23.5/32
    
Pharaon 3.5.12604 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 0.7.12579   60%
18/30
  54%
18.5/34
Pseudo 0.7c2576 50%
0.5/1
    47%
15/32
SOS 5.12575 50%
0.5/1
    42%
13.5/32
Critter 0.40 32-bit2568   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-bit2552  70%
22.5/32
   38%
12/32
Anaconda 2.0.12546   66%
21/32
  50%
16/32
The Baron 1.8.12545     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 5.752539  73%
22.5/31
72%
23/32
   
Little Goliath Evolution 3.122505   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 3.03d2472    83%
26.5/32
73%
19/26
 
SpiderChess 0706032439 100%
1/1
  78%
25/32
66%
21/32
58%
18/31
Matacz 1.12400     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:
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  Recalibrate current list to reference using all common engines


Created in 2005-2013 by CCRL team
Last games added on June 15, 2019