CCRL 40/40
Downloads and Statistics
December 10, 2019
Testing summary:
Total: 1'104'091 games
played by 2'573 programs
150964 CPU days (X2 4600+)

White wins: 382'628 (34.7%)
Black wins: 284'145 (25.7%)
Draws: 437'318 (39.6%)
White score: 54.5%

Custom engine selection

Comparing 6 engines!
6 selected engines played 0 games with each other

CCRL 40/40 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 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern CPU.
Computed on December 10, 2019 with Bayeselo based on 1'104'091 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+
1Gibbon 2.60a 64-bit2336+21−2149.0%+5.031.4%781 
89.4%
 Gibbon 2.69a 64-bit2318+18−1849.2%+7.027.8%1053
99.9%
 Gibbon 2.57a 64-bit2272+23−2351.1%−13.429.5%664
99.6%
 Gibbon 2.42c2224+26−2646.6%+23.728.4%522
69.7%
 Gibbon 2.52a2216+16−1650.8%−6.228.2%1328
100.0%
 Gibbon 2.01b2048+29−2947.1%+34.220.7%463
 

Results matrix

Custom engine selection
#NameElo123456
1Gibbon 2.60a 64-bit2336      
2Gibbon 2.69a 64-bit2318      
3Gibbon 2.57a 64-bit2272      
4Gibbon 2.42c2224      
5Gibbon 2.52a2216      
6Gibbon 2.01b2048      
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
#NameElo123456
1Gibbon 2.60a 64-bit2336 89.4100.0100.0100.0100.0
2Gibbon 2.69a 64-bit231810.6 99.9100.0100.0100.0
3Gibbon 2.57a 64-bit22720.00.1 99.6100.0100.0
4Gibbon 2.42c22240.00.00.4 69.7100.0
5Gibbon 2.52a22160.00.00.030.3 100.0
6Gibbon 2.01b20480.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo123456
1Gibbon 2.60a 64-bit2336 602326391431
2Gibbon 2.69a 64-bit2318602 242302620
3Gibbon 2.57a 64-bit2272326242 3946108
4Gibbon 2.42c2224393039 364104
5Gibbon 2.52a2216142646364 62
6Gibbon 2.01b2048312010810462 
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
#NameElo123456
1Gibbon 2.60a 64-bit2336 32.822.63.00.72.5
2Gibbon 2.69a 64-bit231832.8 14.11.91.11.3
3Gibbon 2.57a 64-bit227222.614.1 3.32.39.6
4Gibbon 2.42c22243.01.93.3 19.710.6
5Gibbon 2.52a22160.71.12.319.7 3.5
6Gibbon 2.01b20482.51.39.610.63.5 
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 111 common opponents

Custom engine selection
NameEloGibbon
2.60a
64-bit
Gibbon
2.69a
64-bit
Gibbon
2.57a
64-bit
Gibbon
2.42c
Gibbon
2.52a
Gibbon
2.01b
Ghost 2.0.2 64-bit248412%
0.5/4
44%
3.5/8
    
Carballo 1.2245958%
3.5/6
50%
1/2
    
Abrok 5.0244375%
1.5/2
31%
2.5/8
    
Shallow r694 64-bit244335%
3.5/10
31%
2.5/8
    
Betsabe II 1.47244217%
1/6
25%
1/4
    
Snitch 1.6.2 64-bit243254%
6.5/12
38%
3/8
    
Ares 1.005 64-bit241725%
4/16
42%
5/12
    
Shallow r688 64-bit241275%
4.5/6
30%
3/10
    
Gaia 3.5 64-bit241150%
6/12
40%
4/10
   0%
0/1
Hermann 1.9240635%
3.5/10
    0%
0/2
Sjakk 2.0 64-bit2402 38%
3/8
38%
1.5/4
   
RomiChess P3L 64-bit2400 50%
1/2
25%
4/16
   
Simplex 0.9.8 64-bit2399 20%
2/10
25%
1/4
   
Tigran 2.4n 64-bit239938%
3/8
38%
6/16
25%
1/4
   
Myrddin 0.87 64-bit239562%
2.5/4
46%
11/24
    
Sorgenkind 0.42388   0%
0/2
12%
0.5/4
 
Waxman 2014238838%
3/8
25%
3.5/14
    
Jazz 721 64-bit238425%
1/4
 25%
0.5/2
   
Waxman 2016237744%
3.5/8
19%
1.5/8
    
Betsabe II 1.28 64-bit2375 25%
2/8
30%
3/10
   
NameEloGibbon
2.60a
64-bit
Gibbon
2.69a
64-bit
Gibbon
2.57a
64-bit
Gibbon
2.42c
Gibbon
2.52a
Gibbon
2.01b
Tytan 9.32 64-bit236733%
4/12
25%
2.5/10
    
TJchess 1.1 64-bit2364 25%
2/8
50%
6/12
   
Isa 2.0.64 64-bit236156%
4.5/8
62%
2.5/4
    
Myrddin 0.86 64-bit235925%
1/4
 40%
4/10
   
Plisk 0.2.7d 64-bit235825%
1/4
50%
7/14
41%
6.5/16
   
Nemeton 1.41235570%
7/10
40%
4/10
    
Lozza 1.15 64-bit234662%
2.5/4
41%
6.5/16
    
Tytan 9.32 32-bit2346   75%
1.5/2
62%
2.5/4
 
Arion 1.72342 69%
5.5/8
 25%
1/4
  
Maverick 0.51 64-bit233844%
8/18
 30%
3/10
   
CyberPagno 2.2 64-bit233548%
11.5/24
56%
9/16
    
Daydreamer 1.52335 50%
4/8
  12%
0.5/4
 
Bagatur 1.3a 64-bit232532%
6.5/20
50%
4/8
38%
13/34
   
Zeus 1.27232060%
6/10
25%
2/8
   8%
0.5/6
EveAnn 1.72231969%
5.5/8
57%
8/14
    
EveAnn 1.67231860%
6/10
56%
4.5/8
30%
3/10
   
EveAnn 1.71a231855%
5.5/10
 58%
3.5/6
   
KnightX 1.92231650%
1/2
  0%
0/2
  
Waxman 2013231350%
3/6
 58%
7/12
   
Averno 0.81231250%
1/2
  50%
1.5/3
0%
0/2
 
NameEloGibbon
2.60a
64-bit
Gibbon
2.69a
64-bit
Gibbon
2.57a
64-bit
Gibbon
2.42c
Gibbon
2.52a
Gibbon
2.01b
Cheese 1.32308   50%
1/2
45%
4.5/10
 
NoraGrace 1.0 64-bit230859%
9.5/16
 50%
5/10
   
Capivara LK 0.09a01a 64-bit2307 44%
3.5/8
56%
4.5/8
   
Ant 2006-F2302   10%
0.5/5
75%
3/4
 
Sjakk 1.1.8230255%
5.5/10
  35%
8.5/24
  
Joker 1.1.142301 75%
4.5/6
 47%
9/19
31%
2.5/8
 
Natwarlal 0.142301  50%
1/2
29%
3.5/12
50%
1/2
0%
0/2
Xpdnt 0809272300   10%
0.5/5
50%
6/12
 
Anechka 0.082299  100%
2/2
17%
0.5/3
31%
2.5/8
50%
0.5/1
Zeus 1.292298  75%
1.5/2
35%
4.5/13
42%
5/12
 
Popochin 3.22295   12%
0.5/4
28%
4.5/16
 
Nemeton 1.0229245%
4.5/10
69%
5.5/8
    
Matilde 2008 64-bit229154%
7.5/14
75%
3/4
    
Chaturanga 2.4.3228925%
0.5/2
   25%
0.5/2
 
FireFly 2.7.0 64-bit228642%
5/12
50%
9/18
38%
1.5/4
   
AliChess 4.252284100%
2/2
 58%
3.5/6
   
Bison 8.2.4r2281   23%
2.5/11
50%
2/4
 
Butcher 1.64 64-bit2281 25%
1/4
54%
18.5/34
   
Orion 0.2 64-bit227856%
10/18
55%
5.5/10
    
Chispa 4.0.32272   20%
1/5
32%
7/22
 
NameEloGibbon
2.60a
64-bit
Gibbon
2.69a
64-bit
Gibbon
2.57a
64-bit
Gibbon
2.42c
Gibbon
2.52a
Gibbon
2.01b
Matilde 2008 32-bit2272    58%
10.5/18
0%
0/2
Tornado 1.02270   50%
2/4
 25%
1/4
Ayito 0.2.9942263   60%
3/5
62%
2.5/4
 
Cheese 1.22260   25%
1.5/6
 25%
0.5/2
Protej 0.5.8c225561%
11/18
61%
11/18
    
Exacto 0.e 64-bit225175%
7.5/10
56%
4.5/8
50%
1/2
   
Beowulf 2.4a 64-bit224925%
0.5/2
44%
3.5/8
67%
4/6
   
EXchess 5.01b 32-bit2249   21%
1.5/7
25%
1/4
80%
4/5
MadChess 1.4 64-bit224869%
11/16
50%
2/4
50%
1/2
   
Mango Paola Ajedrez 4.1224765%
6.5/10
0%
0/4
50%
5/10
   
Absolute Zero 2.4.0.0 64-bit224275%
7.5/10
75%
3/4
69%
5.5/8
   
AliChess 4.182242   27%
3/11
60%
3/5
 
Feuerstein 0.4.6.12238   50%
0.5/1
43%
14.5/34
 
Dolphin 1.0 64-bit2229  50%
3/6
 42%
2.5/6
 
Mango Paola Ajedrez 1.0222675%
7.5/10
 39%
5.5/14
   
Myrddin 0.85 64-bit2218  50%
1/2
 42%
10/24
 
Uralochka 1.1b2217   50%
1/2
54%
12.5/23
 
GarboChess 0.212214   50%
2/4
39%
5.5/14
 
AliChess 4.162213   78%
15.5/20
 0%
0/2
Adam 3.32210  0%
0/2
 62%
2.5/4
 
NameEloGibbon
2.60a
64-bit
Gibbon
2.69a
64-bit
Gibbon
2.57a
64-bit
Gibbon
2.42c
Gibbon
2.52a
Gibbon
2.01b
EveAnn 1.622210   25%
1/4
 50%
1/2
ZCT 0.3.24512210   77%
8.5/11
38%
1.5/4
0%
0/2
Atlas 2.202208   50%
1/2
50%
3/6
 
Latista (Sinobyl) 1.52204  100%
4/4
75%
7.5/10
 50%
0.5/1
ChessAlex 2.0r42203   42%
2.5/6
46%
6/13
 
RattateChess Bologna 20072200   46%
6.5/14
42%
5/12
 
Carballo 0.8219575%
4.5/6
 47%
7.5/16
   
Alf 1.092194   38%
3/8
69%
5.5/8
 
OBender 3.2.4.22191   53%
9.5/18
52%
13.5/26
75%
1.5/2
Glass 0.1.0c2189   50%
2/4
59%
16/27
 
Neurosis 2.42187   70%
14/20
 0%
0/2
NagaSkaki 5.122186   50%
1/2
65%
13/20
 
Hamsters 0.0.62177    75%
13.5/18
33%
1/3
NG-Play 9.86 64-bit217079%
5.5/7
50%
1/2
    
ProChess 1.02AD216375%
1.5/2
 54%
13/24
  38%
6/16
Parrot 07.07.222135   56%
4.5/8
 35%
3.5/10
TJchess 0.1212133   88%
3.5/4
67%
6/9
 
Clarabit 1.00 32-bit2115   50%
1/2
50%
4/8
50%
1/2
Carballo 0.52096  50%
1/2
 50%
5/10
 
BikJump 2.01 32-bit2084    56%
4.5/8
60%
3/5
NameEloGibbon
2.60a
64-bit
Gibbon
2.69a
64-bit
Gibbon
2.57a
64-bit
Gibbon
2.42c
Gibbon
2.52a
Gibbon
2.01b
BigLion 2.23x2066  100%
4/4
50%
3/6
  
Protej 0.5.72054100%
2/2
   62%
2.5/4
 
Rhetoric 0.10.d2050  50%
1/2
  60%
6/10
Mustang 4.972043   100%
2/2
 50%
1/2
Matheus 2.32041   75%
1.5/2
 50%
1/2
Bubble 1.52011  75%
1.5/2
  60%
6/10
BibiChess 0.52000 100%
1/1
   50%
5.5/11
Dabbaba 5.671964  100%
2/2
  80%
8/10
Smash 1.0.31950   100%
2/2
 90%
4.5/5
Soldat III 0.172 32-bit1948  81%
6.5/8
  62%
10/16
Dabbaba 7.491906  81%
6.5/8
  69%
5.5/8
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

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Reference rating list:
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Created in 2005-2013 by CCRL team
Last games added on December 10, 2019