CCRL 40/4
Downloads and Statistics
November 8, 2019
Testing summary:
Total: 2'127'795 games
played by 2'486 programs
28766 CPU days (X2 4600+)

White wins: 825'412 (38.8%)
Black wins: 667'151 (31.4%)
Draws: 635'232 (29.9%)
White score: 53.7%

Custom engine selection

Comparing 9 engines!
9 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 8, 2019 with Bayeselo based on 2'127'795 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+
1K2 0.952660+28−2857.6%−53.924.1%448 
100.0%
 K2 0.912590+14−1449.7%+2.231.0%1721
61.1%
 K2 0.872586+17−1749.3%+5.128.4%1208
98.8%
 K2 0.832560+16−1650.6%−5.026.4%1358
100.0%
 K2 0.792504+20−2053.2%−25.325.8%925
100.0%
 K2 0.712386+18−1854.7%−37.921.6%1213
100.0%
 K2 0.572181+18−1852.8%−25.420.7%1159
100.0%
 K2 0.43f2130+18−1850.0%+1.019.3%1122
100.0%
 K2 0.351973+34−3445.0%+44.320.5%317
 

Results matrix

Custom engine selection
#NameElo123456789
1K2 0.952660         
2K2 0.912590         
3K2 0.872586         
4K2 0.832560         
5K2 0.792504         
6K2 0.712386         
7K2 0.572181         
8K2 0.43f2130         
9K2 0.351973         
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
#NameElo123456789
1K2 0.952660 100.0100.0100.0100.0100.0100.0100.0100.0
2K2 0.9125900.0 61.199.7100.0100.0100.0100.0100.0
3K2 0.8725860.038.9 98.8100.0100.0100.0100.0100.0
4K2 0.8325600.00.31.2 100.0100.0100.0100.0100.0
5K2 0.7925040.00.00.00.0 100.0100.0100.0100.0
6K2 0.7123860.00.00.00.00.0 100.0100.0100.0
7K2 0.5721810.00.00.00.00.00.0 100.0100.0
8K2 0.43f21300.00.00.00.00.00.00.0 100.0
9K2 0.3519730.00.00.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo123456789
1K2 0.952660 79828744700000
2K2 0.912590798 14341036739000
3K2 0.8725862871434 8961173003
4K2 0.8325604471036896 7180000
5K2 0.792504073117718 509000
6K2 0.7123860930509 6923810
7K2 0.57218100000692 145660
8K2 0.43f2130000003811456 267
9K2 0.35197300300060267 
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
#NameElo123456789
1K2 0.952660 36.817.324.80.00.00.00.00.0
2K2 0.91259036.8 49.033.62.80.30.00.00.0
3K2 0.87258617.349.0 34.95.50.10.00.00.2
4K2 0.83256024.833.634.9 31.40.00.00.00.0
5K2 0.7925040.02.85.531.4 23.80.00.00.0
6K2 0.7123860.00.30.10.023.8 29.216.30.0
7K2 0.5721810.00.00.00.00.029.2 63.84.1
8K2 0.43f21300.00.00.00.00.016.363.8 18.6
9K2 0.3519730.00.00.20.00.00.04.118.6 
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 100 common opponents

Custom engine selection
NameEloK2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.79
K2
0.71
K2
0.57
K2
0.43f
K2
0.35
Chessmaster 11 Paralyse2686 50%
1/2
0%
0/3
      
RedQueen 1.1.98 64-bit2671 100%
1/1
100%
1/1
      
Nebula 2.0 64-bit2654 0%
0/1
50%
0.5/1
      
Donna 4.0 64-bit2651 50%
0.5/1
50%
1/2
      
WildCat 82624 37%
22.5/61
0%
0/1
      
Movei 00.8.438 (10 10 10)2623 44%
26.5/60
35%
10.5/30
      
Philou 3.7.1 64-bit2620 45%
14.5/32
42%
12.5/30
      
GreKo 2016 64-bit2619  50%
15.5/31
40%
12.5/31
     
Zarkov 6.552618 51%
30.5/60
55%
17.5/32
45%
9/20
     
tomitankChess 2.0 64-bit2616 45%
14.5/32
39%
12.5/32
      
Slow Chess Blitz WV2.12615 41%
13/32
100%
1/1
      
Coiled 0.5 64-bit2611 47%
15/32
37%
11.5/31
      
Glass 2.0 64-bit261150%
16/32
47%
43.5/93
 42%
13.5/32
     
Delocto 0.6 64-bit261045%
14.5/32
40%
24.5/61
35%
11/31
      
Jellyfish 1.1 64-bit261047%
15/32
59%
19/32
0%
0/1
      
NoraGrace 2.0 64-bit2609 55%
18/33
38%
12/32
      
Ruffian 2.1.0260953%
17/32
53%
17/32
       
GarboChess 2.20 64-bit260748%
15.5/32
45%
14.5/32
       
Amyan 1.72260461%
19.5/32
48%
44/92
 28%
9/32
     
Pharaon 3.5.1260464%
20.5/32
38%
12/32
0%
0/1
34%
11/32
     
NameEloK2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.79
K2
0.71
K2
0.57
K2
0.43f
K2
0.35
Monolith 0.4 64-bit2601 41%
37.5/91
53%
33/62
      
DanaSah 7.02598 47%
15/32
47%
42/90
      
N2 0.4 64-bit2590  100%
1/1
     5%
0.5/10
Floyd 0.9 64-bit258466%
21/32
45%
15/33
55%
17/31
66%
20.5/31
     
Muse 0.953 64-bit258269%
22/32
47%
15.5/33
53%
32/60
50%
16/32
     
Francesca MAD 0.192581 61%
19/31
52%
31.5/60
53%
17/32
     
Hamsters 0.7.1257973%
23.5/32
50%
16/32
 59%
19/32
     
Zurichess Glarus 64-bit2579   47%
14.5/31
39%
12.5/32
    
DanaSah 6.502578  55%
17/31
55%
17.5/32
     
SOS 5.1257473%
23.5/32
48%
15/31
63%
19.5/31
42%
13.5/32
     
Maverick 1.5 64-bit2570 58%
18/31
44%
13.5/31
48%
15.5/32
     
Aristarch 4.502567 59%
19/32
56%
19/34
55%
17.5/32
     
Petir 4.392566 56%
17.5/31
 52%
16.5/32
     
nanoSzachy 4.1 64-bit2559 66%
21/32
47%
8/17
42%
13.5/32
     
Brutus 8.05 64-bit2557 52%
17/33
0%
0/1
45%
14.5/32
34%
6.5/19
    
Marvin 2.1.0 64-bit2556  58%
17.5/30
38%
12/32
     
Ghost 3.1 64-bit2554 70%
22.5/32
43%
13/30
59%
19/32
     
Ufim 8.022540  50%
1.5/3
47%
15/32
36%
11.5/32
    
AnMon 5.752539 0%
0/1
58%
18/31
45%
14.5/32
44%
14/32
    
Fridolin 2.00 64-bit2538  25%
0.5/2
50%
16/32
56%
17.5/31
    
NameEloK2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.79
K2
0.71
K2
0.57
K2
0.43f
K2
0.35
Capivara LK 0.09b02g 64-bit2537 58%
19/33
60%
18/30
      
Hayabusa 0.11.7 64-bit2535 100%
1/1
100%
1/1
      
DanaSah 4.882534   59%
19/32
60%
18.5/31
    
Hermann 2.8 64-bit2531 100%
1/1
75%
3/4
60%
38.5/64
48%
15.5/32
    
JikChess 0.02 64-bit2522  100%
1/1
 38%
12/32
    
Green Light Chess 3.01.2.22505 100%
1/1
100%
1/1
53%
17/32
47%
15/32
    
Little Goliath Evolution 3.122505 100%
1/1
50%
0.5/1
58%
18.5/32
52%
16/31
    
Yace 0.99.872504 0%
0/1
 53%
17/32
45%
14/31
    
Trace 1.37a2500 100%
1/1
100%
2/2
69%
22/32
44%
14/32
    
Gothmog 1.0b102483 50%
1/2
100%
1/1
      
Mephisto Gideon Professional2474    45%
14.5/32
36%
10/28
   
Cerebro 3.03d2472    59%
13/22
30%
8.5/28
   
Dorky 4.3 64-bit2467    44%
14/32
39%
10.5/27
   
Carballo 1.3 64-bit2454    61%
19.5/32
34%
11/32
   
LittleThought 1.052 64-bit2452    56%
18/32
45%
13/29
   
Counter 1.22447    41%
13/32
37%
11/30
   
LambChop 10.992434 50%
0.5/1
   38%
11/29
   
Dragon 4.62418  0%
0/1
  45%
13.5/30
   
RomiChess P3L 64-bit2412    68%
15/22
50%
15.5/31
   
Giraffe 20150908 64-bit2410    61%
14/23
59%
19/32
   
NameEloK2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.79
K2
0.71
K2
0.57
K2
0.43f
K2
0.35
Simplex 0.9.8 64-bit2410 50%
0.5/1
  64%
14/22
50%
11.5/23
   
Ifrit m1.8 64-bit2404  75%
1.5/2
 57%
13/23
    
Amy 0.87b2386  50%
0.5/1
 83%
19/23
    
Gibbon 2.69a 64-bit2327 100%
1/1
   41%
13/32
   
Absolute Zero 2.4.0.0 64-bit2260     66%
21/32
40%
12.5/31
  
Ant 2006-F2236     62%
20/32
62%
18.5/30
  
Anechka 0.082235     69%
22/32
47%
14/30
36%
11.5/32
 
AliChess 4.252229     70%
22.5/32
37%
11.5/31
40%
12.5/31
 
Fischerle 0.9.60 64-bit2226     72%
23/32
44%
14/32
  
OBender 3.2.x2225     83%
26.5/32
55%
17/31
23%
7.5/32
 
Adam 3.32221     73%
23.5/32
26%
8/31
28%
9/32
 
FireFly 2.7.0 64-bit2208     72%
23/32
56%
17.5/31
33%
10.5/32
 
Chispa 4.0.32207     61%
19.5/32
32%
10/31
37%
11/30
 
Orion 0.2 64-bit2207     83%
26.5/32
41%
13/32
  
CyberPagno 2.12206      44%
14/32
44%
13.5/31
 
Beowulf 2.4a 32-bit2203      48%
15.5/32
37%
11.5/31
 
RattateChess 1.0 Nosferatu2199     70%
22.5/32
48%
14.5/30
  
Shallow 1.0 64-bit2193      56%
18/32
31%
10/32
 
Uralochka 1.1b2189      39%
12.5/32
44%
13.5/31
 
Mango Paola Ajedrez 1.02185      63%
19.5/31
58%
18/31
 
NameEloK2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.79
K2
0.71
K2
0.57
K2
0.43f
K2
0.35
Atak 6.82184      56%
17.5/31
53%
17/32
 
Madeleine 0.22183      42%
13.5/32
50%
15/30
 
Protej 0.5.8c2178      48%
15/31
38%
11.5/30
 
Genesis 2.02171      43%
13/30
32%
10/31
 
InmiChess3.06N2162      47%
14/30
38%
11.5/30
 
BlackBishop 1.02157      53%
15.5/29
39%
12/31
 
Orion 0.1 64-bit2155      56%
17.5/31
65%
6.5/10
 
Alarm 0.93.12145      47%
14.5/31
50%
15.5/31
 
Lime 662144      52%
16/31
33%
10.5/32
 
NG-Play 9.84 64-bit2119      61%
19/31
52%
15/29
 
Napoleon 1.5.0 64-bit2081      53%
16/30
67%
21.5/32
 
Matheus 2.32059      73%
22.5/31
65%
20/31
35%
3.5/10
ChessMind 0.822057      58%
17.5/30
53%
16.5/31
65%
6.5/10
MadChess 1.2 64-bit2050       64%
20.5/32
20%
2/10
Gerbil 0.2 64-bit2043       79%
24.5/31
30%
3/10
Vice 1.0 64-bit2042       58%
18/31
30%
3/10
Bestia 0.902021       73%
23.5/32
45%
4.5/10
Small Potato 0.6.11993       74%
23/31
35%
3.5/10
BigLion 2.23x1989       72%
23/32
45%
4.5/10
Armageddon 2.3081987       66%
21/32
33%
3/9
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):

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 reference list to current one using all common engines
  Recalibrate current list to reference using selected engines only
  Recalibrate current list to reference using all common engines


Created in 2005-2013 by CCRL team
Last games added on November 8, 2019