CCRL 40/40
Downloads and Statistics
July 19, 2019
Testing summary:
Total: 1'068'538 games
played by 2'502 programs
146028 CPU days (X2 4600+)

White wins: 371'241 (34.7%)
Black wins: 276'263 (25.9%)
Draws: 421'034 (39.4%)
White score: 54.4%

Custom engine selection

Comparing 10 engines!
10 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 Intel CPU.
Computed on July 19, 2019 with Bayeselo based on 1'068'538 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+
1FireFly 2.7.2 64-bit2329+16−1647.7%+15.030.3%1326 
100.0%
 FireFly 2.7.0 64-bit2286+17−1750.5%−5.429.2%1230
99.7%
 FireFly 2.6.0 64-bit2232+33−3351.3%−11.323.1%342
72.8%
 FireFly 2.5.12 64-bit2217+37−3752.1%−16.822.3%264
64.6%
 FireFly 2.5.13 64-bit2207+34−3449.8%−5.829.0%297
79.3%
 FireFly 2.5.13 32-bit2187+34−3451.0%−8.222.9%306
62.6%
 FireFly 2.5.102179+34−3449.5%+4.123.5%302
88.3%
 FireFly 2.5.8 32-bit2149+34−3447.1%+21.223.4%308
99.9%
 FireFly 2.5.6 32-bit2086+22−2246.8%+21.124.1%722
75.2%
 FireFly 2.5.42072+33−3447.9%+12.920.8%331
 

Results matrix

Custom engine selection
#NameElo12345678910
1FireFly 2.7.2 64-bit2329          
2FireFly 2.7.0 64-bit2286          
3FireFly 2.6.0 64-bit2232          
4FireFly 2.5.12 64-bit2217          
5FireFly 2.5.13 64-bit2207          
6FireFly 2.5.13 32-bit2187          
7FireFly 2.5.102179          
8FireFly 2.5.8 32-bit2149          
9FireFly 2.5.6 32-bit2086          
10FireFly 2.5.42072          
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
#NameElo12345678910
1FireFly 2.7.2 64-bit2329 100.0100.0100.0100.0100.0100.0100.0100.0100.0
2FireFly 2.7.0 64-bit22860.0 99.799.9100.0100.0100.0100.0100.0100.0
3FireFly 2.6.0 64-bit22320.00.3 72.885.096.898.5100.0100.0100.0
4FireFly 2.5.12 64-bit22170.00.127.2 64.687.792.999.6100.0100.0
5FireFly 2.5.13 64-bit22070.00.015.035.4 79.387.299.0100.0100.0
6FireFly 2.5.13 32-bit21870.00.03.212.320.7 62.693.4100.0100.0
7FireFly 2.5.1021790.00.01.57.112.837.4 88.3100.0100.0
8FireFly 2.5.8 32-bit21490.00.00.00.41.06.611.7 99.999.9
9FireFly 2.5.6 32-bit20860.00.00.00.00.00.00.00.1 75.2
10FireFly 2.5.420720.00.00.00.00.00.00.00.124.8 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo12345678910
1FireFly 2.7.2 64-bit2329 41442080584275016
2FireFly 2.7.0 64-bit2286414 3526191695924320
3FireFly 2.6.0 64-bit223242352 027312081212
4FireFly 2.5.12 64-bit2217060 1149072801160
5FireFly 2.5.13 64-bit220780191273114 132445460
6FireFly 2.5.13 32-bit218758691290132 24216816212
7FireFly 2.5.102179425907244242 22324366
8FireFly 2.5.8 32-bit2149752488054168223 24754
9FireFly 2.5.6 32-bit208603121166162243247 331
10FireFly 2.5.4207216201200126654331 
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
#NameElo12345678910
1FireFly 2.7.2 64-bit2329 16.22.50.04.93.62.64.60.01.0
2FireFly 2.7.0 64-bit228616.2 22.40.412.54.53.91.60.21.3
3FireFly 2.6.0 64-bit22322.522.4 0.042.71.90.01.21.11.8
4FireFly 2.5.12 64-bit22170.00.40.0 20.315.812.714.011.80.0
5FireFly 2.5.13 64-bit22074.912.542.720.3 21.97.38.90.60.0
6FireFly 2.5.13 32-bit21873.64.51.915.821.9 39.827.415.81.9
7FireFly 2.5.1021792.63.90.012.77.339.8 36.623.710.4
8FireFly 2.5.8 32-bit21494.61.61.214.08.927.436.6 24.08.5
9FireFly 2.5.6 32-bit20860.00.21.111.80.615.823.724.0 31.4
10FireFly 2.5.420721.01.31.80.00.01.910.48.531.4 
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 147 common opponents

Custom engine selection
NameEloFireFly
2.7.2
64-bit
FireFly
2.7.0
64-bit
FireFly
2.6.0
64-bit
FireFly
2.5.12
64-bit
FireFly
2.5.13
64-bit
FireFly
2.5.13
32-bit
FireFly
2.5.10
FireFly
2.5.8
32-bit
FireFly
2.5.6
32-bit
FireFly
2.5.4
Abrok 5.0244233%
2/6
25%
0.5/2
        
Snitch 1.6.2 64-bit243642%
2.5/6
0%
0/2
        
Cmcchess 2.6 64-bit241950%
3/6
100%
2/2
        
PostModernist 1016241925%
1.5/6
50%
1/2
        
Ares 1.005 64-bit241717%
1/6
29%
3.5/12
        
Gaia 3.5 64-bit241267%
4/6
25%
0.5/2
        
Shallow r688 64-bit2412 33%
2/6
25%
2.5/10
       
Ares 1.005.2 64-bit241033%
2/6
100%
2/2
        
Tigran 2.4n 64-bit2400 36%
5/14
38%
1.5/4
       
Myrddin 0.87 64-bit239450%
1.5/3
44%
3.5/8
        
Jazz 721 64-bit2386 31%
2.5/8
45%
4.5/10
       
TJchess 1.1 64-bit2364 0%
0/2
  25%
1/4
     
Myrddin 0.86 64-bit2358 50%
4/8
  38%
1.5/4
     
Plisk 0.2.7d 64-bit235862%
10.5/17
38%
1.5/4
        
Aice 0.99.2233750%
3/6
      75%
1.5/2
  
Maverick 0.51 64-bit2337 32%
4.5/14
62%
2.5/4
       
EveAnn 1.712326 25%
2/8
20%
2/10
       
Bagatur 1.3a 64-bit2325 38%
6/16
54%
6.5/12
 25%
0.5/2
     
EveAnn 1.72231953%
19.5/37
34%
5.5/16
        
ECE 12.012318  50%
1.5/3
 25%
0.5/2
     
NameEloFireFly
2.7.2
64-bit
FireFly
2.7.0
64-bit
FireFly
2.6.0
64-bit
FireFly
2.5.12
64-bit
FireFly
2.5.13
64-bit
FireFly
2.5.13
32-bit
FireFly
2.5.10
FireFly
2.5.8
32-bit
FireFly
2.5.6
32-bit
FireFly
2.5.4
EveAnn 1.672318    6%
0.5/8
62%
2.5/4
    
Gibbon 2.69a 64-bit231862%
2.5/4
50%
9/18
        
Waxman 20132313 29%
3.5/12
44%
3.5/8
       
Capivara LK 0.09a01a 64-bit2306 38%
3/8
50%
4/8
 35%
3.5/10
     
Waxman 20112303  44%
3.5/8
 0%
0/4
     
Ant 2006-F230255%
5.5/10
    50%
1/2
    
Natwarlal 0.14230267%
4/6
      0%
0/2
  
Joker 1.1.14230055%
5.5/10
57%
4/7
        
Anechka 0.082299 0%
0/2
   0%
0/2
 50%
1/2
  
Fischerle 0.9.80 SE 64-bit229850%
2.5/5
53%
9/17
        
Popochin 3.22295 50%
1/2
   25%
0.5/2
 50%
1/2
  
Absolute Zero 2.4.7.2 64-bit229465%
13/20
41%
4.5/11
        
Fischerle 0.9.70 SE 64-bit2294 58%
3.5/6
  62%
5/8
     
Mediocre 0.52293 30%
3/10
44%
3.5/8
 75%
3/4
     
Chaturanga 2.4.3229075%
4.5/6
    50%
1/2
50%
1/2
17%
0.5/3
  
Bearded N44.2 64-bit2285 67%
8/12
  55%
5.5/10
     
Butcher 1.61 32-bit2284     38%
1.5/4
0%
0/4
   
AliChess 4.252283    38%
1.5/4
25%
1.5/6
 25%
0.5/2
  
Galjoen 0.38 64-bit228258%
7/12
      25%
1/4
  
Rhetoric Lite2281  25%
1/4
 0%
0/2
     
NameEloFireFly
2.7.2
64-bit
FireFly
2.7.0
64-bit
FireFly
2.6.0
64-bit
FireFly
2.5.12
64-bit
FireFly
2.5.13
64-bit
FireFly
2.5.13
32-bit
FireFly
2.5.10
FireFly
2.5.8
32-bit
FireFly
2.5.6
32-bit
FireFly
2.5.4
Butcher 1.64 64-bit228062%
5/8
42%
2.5/6
41%
6.5/16
 56%
4.5/8
     
Gibbon 2.57a 64-bit2272 62%
2.5/4
42%
10/24
 50%
3/6
     
Isa 2.0.48 64-bit226961%
8.5/14
50%
0.5/1
        
Ayito 0.2.994226425%
1.5/6
50%
1/2
     0%
0/2
  
Tigran 2.3 64-bit2261  39%
3.5/9
 38%
3/8
     
Isa 2.0.45 64-bit225983%
5/6
71%
8.5/12
        
Sungorus 1.4 32-bit2259     50%
2/4
30%
3/10
100%
2/2
  
CT800 1.30 64-bit225550%
7/14
   50%
7/14
     
RattateChess 1.0 Nosferatu225183%
5/6
50%
1/2
   44%
3.5/8
25%
1/4
   
Exacto 0.e 64-bit225058%
3.5/6
51%
23/45
        
Beowulf 2.4a 64-bit224967%
4/6
50%
4/8
  50%
1/2
     
Mango Paola Ajedrez 4.12248 60%
14.5/24
75%
3/4
       
Lozza 1.14a 64-bit2246 80%
4/5
  45%
4.5/10
     
Absolute Zero 2.4.0.0 64-bit2241 56%
18/32
38%
1.5/4
       
Feuerstein 0.4.6.12237        20%
1/5
10%
1/10
Atak 6.82236   62%
15/24
75%
3/4
46%
5.5/12
50%
2/4
100%
2/2
  
Dolphin 1.0 64-bit222983%
5/6
   42%
2.5/6
60%
6/10
50%
1/2
25%
0.5/2
  
Buzz 0.08 64-bit222842%
2.5/6
50%
1/2
        
RamJet 0.13222850%
3/6
30%
3/10
       40%
4/10
Mango Paola Ajedrez 1.02227 50%
4/8
36%
5/14
       
NameEloFireFly
2.7.2
64-bit
FireFly
2.7.0
64-bit
FireFly
2.6.0
64-bit
FireFly
2.5.12
64-bit
FireFly
2.5.13
64-bit
FireFly
2.5.13
32-bit
FireFly
2.5.10
FireFly
2.5.8
32-bit
FireFly
2.5.6
32-bit
FireFly
2.5.4
Tiny Chess 1.46 64-bit222485%
8.5/10
50%
1/2
        
Hussar 0.22223       42%
5/12
50%
1/2
 
Vajolet 1.62.12221  25%
1/4
 55%
5.5/10
     
Joker2 0.7.7 64-bit222062%
7.5/12
     12%
1/8
   
Robocide 20170718 64-bit222069%
11/16
100%
1/1
        
Myrddin 0.85 64-bit2218   44%
10.5/24
33%
4/12
     
Beowulf 2.4a 32-bit2217     42%
5/12
25%
1.5/6
38%
1.5/4
12%
0.5/4
 
Gibbon 2.52a2216     0%
0/2
 50%
2/4
31%
5/16
 
CT800 1.12 64-bit221575%
3/4
56%
18/32
        
ChessKISS 1.7c 64-bit2213 70%
7/10
    35%
3.5/10
   
OBender 03.2016 64-bit221367%
4/6
50%
3/6
   50%
5/10
    
Adam 3.32210 100%
2/2
 38%
9/24
58%
7/12
40%
4/10
58%
3.5/6
8%
0.5/6
  
MadChess 1.3 64-bit2210 62%
2.5/4
44%
3.5/8
       
Neurosis 2.3221067%
4/6
31%
2.5/8
        
ChessKISS 1.7 64-bit220958%
3.5/6
88%
3.5/4
67%
16/24
 36%
6.5/18
     
Neurosis 2.52206   50%
12/24
    39%
8.5/22
 
Myrddin 0.85 32-bit2205     55%
5.5/10
67%
8/12
   
BlackBishop 1.02201      50%
1/2
50%
2.5/5
27%
6.5/24
 
Dorpsgek Eve's Temptation 64-bit220075%
3/4
64%
32/50
        
Zevra 1.8.2 r612 64-bit219681%
6.5/8
      25%
1/4
  
NameEloFireFly
2.7.2
64-bit
FireFly
2.7.0
64-bit
FireFly
2.6.0
64-bit
FireFly
2.5.12
64-bit
FireFly
2.5.13
64-bit
FireFly
2.5.13
32-bit
FireFly
2.5.10
FireFly
2.5.8
32-bit
FireFly
2.5.6
32-bit
FireFly
2.5.4
Carballo 0.82194 100%
8/8
66%
10.5/16
 55%
5.5/10
     
Dorpsgek Dillinger 64-bit2194 70%
15.5/22
   55%
5.5/10
    
Jazz 444 32-bit2194     50%
2/4
31%
2.5/8
17%
0.5/3
  
OBender 3.2.4.22191   54%
13/24
    44%
3.5/8
 
GopherCheck 0.2.3 64-bit2190 75%
1.5/2
     35%
3.5/10
  
NG-Play 9.85 64-bit218992%
5.5/6
100%
2/2
        
NG-Play 9.87 64-bit218794%
7.5/8
64%
9/14
        
Mediocre 0.342186        25%
3/12
42%
5/12
NagaSkaki 5.122185      62%
2.5/4
 50%
5/10
 
Shallow 1.0 64-bit2185  54%
6.5/12
 57%
12/21
     
Fischerle 0.9.30b 64-bit2184 83%
10/12
50%
11/22
       
KMTChess 1.2.1 32-bit2181     50%
6/12
62%
7.5/12
 36%
6.5/18
 
Atak 6.52179        100%
1/1
0%
0/4
ECE 11.012179   46%
11/24
  65%
6.5/10
8%
0.5/6
25%
0.5/2
 
Hamsters 0.0.62177       45%
4.5/10
50%
1/2
 
Lime 662177        27%
8.5/32
35%
3.5/10
RedQueen 0.62176       60%
6/10
50%
6/12
 
Sjakk 1.1.72173      75%
1.5/2
33%
1/3
  
Sungorus 1.22172      50%
5/10
 60%
3/5
 
Kurt 0.9.2.2 64-bit2169   69%
16.5/24
50%
5/10
     
NameEloFireFly
2.7.2
64-bit
FireFly
2.7.0
64-bit
FireFly
2.6.0
64-bit
FireFly
2.5.12
64-bit
FireFly
2.5.13
64-bit
FireFly
2.5.13
32-bit
FireFly
2.5.10
FireFly
2.5.8
32-bit
FireFly
2.5.6
32-bit
FireFly
2.5.4
Pawny 0.132169      70%
7/10
45%
4.5/10
12%
0.5/4
 
RamJet 0.14216862%
2.5/4
69%
23.5/34
        
Simplex 0.9.3 32-bit2166      35%
3.5/10
 50%
7/14
 
ProChess 1.02AD2163 46%
5.5/12
67%
16/24
 50%
1/2
     
Clever Girl r185 64-bit216275%
10.5/14
      67%
4/6
  
Betsabe II 1.052158      75%
3/4
50%
5/10
  
Chesley r323 32-bit2155     62%
12.5/20
56%
4.5/8
83%
2.5/3
  
Dorpsgek Cosmopolitan 2 64-bit2151 50%
2/4
    65%
6.5/10
   
KnockOut 0.7.12150   58%
14/24
 38%
3/8
38%
1.5/4
46%
6.5/14
31%
5/16
 
Ifrit j4.32148      35%
3.5/10
42%
2.5/6
  
GopherCheck 0.2.2 64-bit2139     75%
3/4
88%
3.5/4
   
Prophet 2.0 32-bit2136      50%
1/2
62%
2.5/4
12%
0.5/4
54%
6.5/12
Parrot 07.07.222135      50%
1/2
 50%
1/2
32%
4.5/14
Napoleon 1.7 64-bit2133 62%
2.5/4
    50%
10/20
   
TJchess 0.1212133       100%
4/4
33%
18/54
 
Waxman 20082133      85%
8.5/10
40%
4/10
44%
7/16
50%
4/8
Bearded 06_29_022129     75%
3/4
25%
0.5/2
25%
1/4
53%
10/19
 
Clarabit 1.00 32-bit2114      75%
1.5/2
 58%
7/12
 
MadChess 1.2 64-bit2114  42%
5/12
 65%
6.5/10
     
Myrddin 0.84 32-bit2114      55%
5.5/10
 100%
2/2
 
NameEloFireFly
2.7.2
64-bit
FireFly
2.7.0
64-bit
FireFly
2.6.0
64-bit
FireFly
2.5.12
64-bit
FireFly
2.5.13
64-bit
FireFly
2.5.13
32-bit
FireFly
2.5.10
FireFly
2.5.8
32-bit
FireFly
2.5.6
32-bit
FireFly
2.5.4
Kurt 0.9.2 32-bit2113     50%
4/8
50%
4/8
63%
9.5/15
67%
4/6
 
Napoleon 1.4.0 64-bit2109 62%
5/8
  33%
2/6
     
Adam 3.12108        42%
2.5/6
48%
11.5/24
Prophet3 20170909 64-bit209975%
3/4
100%
2/2
        
Carballo 0.52095    50%
1/2
81%
6.5/8
50%
2/4
62%
2.5/4
41%
6.5/16
 
BikJump 2.01 32-bit2083     25%
0.5/2
50%
1/2
 34%
11.5/34
62%
2.5/4
Ifrit j2.92079      55%
5.5/10
 88%
3.5/4
65%
13/20
BigLion 2.23x2066  50%
2/4
  75%
1.5/2
 62%
2.5/4
50%
22/44
61%
14/23
Protej 0.5.72053 100%
1/1
   50%
1/2
25%
0.5/2
 50%
7/14
 
Rhetoric 0.10.d2050    80%
8/10
75%
4.5/6
    
PLP 16615712046     50%
1/2
100%
2/2
 50%
2/4
 
Jabba 1.0 32-bit2043      100%
2/2
62%
2.5/4
58%
7/12
 
Mustang 4.972043        38%
1.5/4
50%
2/4
Matheus 2.32041       75%
3/4
58%
18.5/32
45%
4.5/10
ChessMind 0.822030       50%
2/4
50%
1/2
 
Slibo 0.5.12024     92%
5.5/6
  85%
8.5/10
 
Bubble 1.52011    75%
6/8
50%
3/6
100%
2/2
75%
3/4
  
AdroitChess 0.31982    88%
3.5/4
75%
3/4
    
Heracles 0.6.161981        54%
6.5/12
75%
3/4
Rival 1.181974        88%
3.5/4
56%
4.5/8
NameEloFireFly
2.7.2
64-bit
FireFly
2.7.0
64-bit
FireFly
2.6.0
64-bit
FireFly
2.5.12
64-bit
FireFly
2.5.13
64-bit
FireFly
2.5.13
32-bit
FireFly
2.5.10
FireFly
2.5.8
32-bit
FireFly
2.5.6
32-bit
FireFly
2.5.4
Dabbaba 5.671964    75%
1.5/2
100%
2/2
    
BSC 3.9++ 32-bit1959    100%
2/2
100%
4/4
    
Soldat III 0.172 32-bit1948  88%
7/8
 50%
1/2
     
ECE 0.31913        75%
6/8
31%
2.5/8
Clueless 1.41911        75%
3/4
78%
14/18
Jabba 130320121905  100%
4/4
 100%
4/4
50%
1/2
    
Surprise 4.3b131893        50%
3/6
64%
9/14
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%

Alter engine selection



Alter output selection

Rating list
Testing profile
  (Step: , Numbers: )

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
Highlight diagonal of cells wide. (0 to highlight everything)

Reference rating list:
Recalibrate:
  No recalibration (reference and current list are compared as they are)
  Recalibrate reference list to current one using selected engines only
  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 July 19, 2019