CCRL 40/15
Downloads and Statistics
May 8, 2021
Testing summary:
Total: 1'242'291 games
played by 2'843 programs

White wins: 425'658 (34.3%)
Black wins: 312'703 (25.2%)
Draws: 503'930 (40.6%)
White score: 54.5%

Custom engine selection

Comparing 11 engines!
11 selected engines played 0 games with each other

CCRL 40/15 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 15 minutes on an Intel i7-4770k.
Computed on May 8, 2021 with Bayeselo based on 1'242'291 games
Please refer to the "about" page for comments on engine inclusion

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+
1K2 0.992706+21−2146.2%+26.235.0%732 
99.9%
 K2 0.952662+16−1648.2%+11.932.8%1297
100.0%
 K2 0.912615+15−1549.0%+7.432.9%1497
99.7%
 K2 0.872583+18−1749.0%+5.934.7%1102
99.9%
 K2 0.832533+26−2651.7%−12.133.3%474
98.9%
 K2 0.752492+23−2352.4%−18.932.8%634
99.7%
 K2 0.792440+29−2947.4%+18.830.6%402
85.6%
 K2 0.712418+28−2851.4%−9.527.6%439
100.0%
 K2 0.672355+23−2352.7%−18.029.7%677
100.0%
 K2 0.572187+33−3347.0%+22.525.8%314
97.7%
 K2 0.43f2140+33−3348.2%+11.221.3%338
 

Results matrix

Custom engine selection
#NameElo1234567891011
1K2 0.992706           
2K2 0.952662           
3K2 0.912615           
4K2 0.872583           
5K2 0.832533           
6K2 0.752492           
7K2 0.792440           
8K2 0.712418           
9K2 0.672355           
10K2 0.572187           
11K2 0.43f2140           
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
#NameElo1234567891011
1K2 0.992706 99.9100.0100.0100.0100.0100.0100.0100.0100.0100.0
2K2 0.9526620.1 100.0100.0100.0100.0100.0100.0100.0100.0100.0
3K2 0.9126150.00.0 99.7100.0100.0100.0100.0100.0100.0100.0
4K2 0.8725830.00.00.3 99.9100.0100.0100.0100.0100.0100.0
5K2 0.8325330.00.00.00.1 98.9100.0100.0100.0100.0100.0
6K2 0.7524920.00.00.00.01.1 99.7100.0100.0100.0100.0
7K2 0.7924400.00.00.00.00.00.3 85.6100.0100.0100.0
8K2 0.7124180.00.00.00.00.00.014.4 100.0100.0100.0
9K2 0.6723550.00.00.00.00.00.00.00.0 100.0100.0
10K2 0.5721870.00.00.00.00.00.00.00.00.0 97.7
11K2 0.43f21400.00.00.00.00.00.00.00.00.02.3 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo1234567891011
1K2 0.992706 436280320600000
2K2 0.952662436 30521844181203000
3K2 0.912615280305 446122242202400
4K2 0.87258332218446 32517276324403
5K2 0.83253304412325 28231014115000
6K2 0.75249261822172282 495448240146
7K2 0.7924400124276310495 26220200
8K2 0.712418002032141448262 2661812
9K2 0.6723550302444150240202266 234192
10K2 0.5721870000014018234 244
11K2 0.43f2140000306012192244 
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
#NameElo1234567891011
1K2 0.992706 21.512.61.70.00.40.00.00.00.00.0
2K2 0.95266221.5 10.99.12.50.90.70.01.50.00.0
3K2 0.91261512.610.9 17.20.61.02.21.01.10.00.0
4K2 0.8725831.79.117.2 20.69.95.12.12.50.00.2
5K2 0.8325330.02.50.620.6 25.535.415.413.00.00.0
6K2 0.7524920.40.91.09.925.5 47.841.818.31.50.6
7K2 0.7924400.00.72.25.135.447.8 31.218.70.00.0
8K2 0.7124180.00.01.02.115.441.831.2 23.82.41.5
9K2 0.6723550.01.51.12.513.018.318.723.8 23.618.9
10K2 0.5721870.00.00.00.00.01.50.02.423.6 37.4
11K2 0.43f21400.00.00.00.20.00.60.01.518.937.4 
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 179 common opponents

Custom engine selection
NameEloK2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.75
K2
0.79
K2
0.71
K2
0.67
K2
0.57
K2
0.43f
OliThink 5.9.2 64-bit280025%
0.5/2
38%
1.5/4
         
Monolith 1.0 64-bit279433%
16.5/50
25%
1/4
28%
8.5/30
        
RuyDos 1.1.9 64-bit2791 12%
0.5/4
20%
6.5/33
        
RuyDos 1.1.11 64-bit278538%
1.5/4
50%
4/8
         
tomitankChess 3.0 64-bit2785 50%
2/4
12%
0.5/4
        
RuyDos 1.1.10 64-bit278234%
17/50
30%
3/10
         
Cheese 2.0 64-bit276236%
18/50
 31%
10/32
        
Francesca MAD 0.24 64-bit2757 12%
0.5/4
25%
9/36
        
Carballo 1.7 64-bit2736 30%
3/10
 42%
5/12
       
Arminius 2018-12-23 64-bit273253%
26.5/50
36%
8/22
36%
11.5/32
        
Shield 2.1 64-bit272750%
27/54
50%
3/6
         
Devel 2.00002724 34%
5.5/16
12%
0.5/4
        
ProDeo 2.22720 55%
5.5/10
 25%
1/4
       
GreKo 2020.03 64-bit271450%
28.5/57
41%
6.5/16
         
Bagatur 1.7a 64-bit2709 50%
2/4
38%
1.5/4
        
Carballo 1.6 64-bit2709   0%
0/2
33%
2/6
      
Ktulu 82706 50%
5/10
 20%
2/10
       
Cheese 1.9 64-bit2704  38%
4.5/12
38%
3/8
       
Chess Tiger 2007.1270362%
2.5/4
25%
1/4
         
DanaSah 8.3269638%
1.5/4
47%
16/34
         
NameEloK2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.75
K2
0.79
K2
0.71
K2
0.67
K2
0.57
K2
0.43f
ECE 20.1 64-bit269256%
4.5/8
60%
6/10
         
Fridolin 3.10 64-bit268349%
26.5/54
36%
13.5/38
25%
1/4
        
WyldChess 1.51 64-bit2682  46%
5.5/12
25%
1/4
       
Fridolin 3.00 64-bit2675 100%
1/1
88%
3.5/4
        
Shallow 2020-09-09 64-bit267475%
9/12
42%
13.5/32
         
ChessBrainVB 2.052668   67%
2/3
 33%
2/6
     
RedQueen 1.1.98 64-bit2663 25%
1.5/6
 44%
7/16
62%
5/8
      
CM9000 Enforcer265738%
1.5/4
  25%
0.5/2
       
Floyd 0.9 64-bit2657   39%
11/28
25%
1/4
      
Philou 3.7.1 64-bit2650 70%
7/10
 50%
1/2
       
Cyrano 0.6b17 32-bit2648  29%
3.5/12
45%
4.5/10
       
Drosophila 1.6 64-bit264858%
7/12
48%
11.5/24
         
ECE X3 64-bit2645  41%
6.5/16
52%
10.5/20
       
Gandalf 7 64-bit264425%
1/4
 50%
6/12
38%
1.5/4
       
CM10th Magic II2643  54%
6.5/12
25%
0.5/2
       
ECE X3.5 64-bit2641 50%
5/10
50%
4/8
        
DanaSah 7.32639 62%
2.5/4
45%
13/29
62%
5/8
       
WyldChess 1.4 64-bit2639   38%
1.5/4
20%
2/10
      
DanaSah 7.92635 50%
2/4
62%
2.5/4
        
Sjakk 2.2 64-bit2631 62%
2.5/4
 25%
0.5/2
 0%
0/2
     
NameEloK2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.75
K2
0.79
K2
0.71
K2
0.67
K2
0.57
K2
0.43f
Rodin 8.0262750%
2/4
50%
2/4
 43%
17.5/41
       
NoraGrace 2.0 64-bit2622 65%
6.5/10
   25%
1/4
  12%
0.5/4
  
Phalanx XXV2618 88%
3.5/4
 46%
18/39
       
Monolith 0.4 64-bit2608  31%
2.5/8
46%
5.5/12
       
Betsabe II 20202607100%
4/4
43%
6/14
         
Donna 4.0 64-bit2606   46%
17.5/38
 44%
3.5/8
     
DanaSah 6.502605   38%
8/21
55%
5.5/10
      
Gogobello 1.3 64-bit2605   55%
5.5/10
30%
3/10
      
Arminius 2015-08-06 64-bit2604   50%
7/14
38%
1.5/4
29%
3.5/12
     
Nawito 18122598 80%
8/10
53%
8.5/16
        
N2 0.4 64-bit2594  42%
5/12
55%
5.5/10
       
GreKo 2016 64-bit2592   50%
2/4
30%
3/10
      
Brutus 8.05 64-bit258975%
3/4
  75%
1.5/2
 25%
0.5/2
     
Coiled 0.6 64-bit258538%
1.5/4
50%
8/16
50%
10/20
        
GarboChess 3.0 64-bit2585  46%
5.5/12
20%
2/10
       
Donna 4.1 64-bit2584 66%
10.5/16
47%
18/38
        
Ethereal 7.78 64-bit2584   35%
4.5/13
35%
3.5/10
      
Marvin 2.1.0 64-bit2582   62%
2.5/4
25%
2.5/10
      
Drofa 2.1.0 64-bit258138%
1.5/4
83%
5/6
         
Jellyfish 1.1 64-bit2580   42%
8.5/20
46%
5.5/12
46%
6.5/14
     
NameEloK2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.75
K2
0.79
K2
0.71
K2
0.67
K2
0.57
K2
0.43f
Delocto 0.6 64-bit2579 38%
1.5/4
58%
18.5/32
50%
8/16
       
GreKo 12.9 64-bit2578    31%
2.5/8
25%
0.5/2
     
Capivara LK 0.09b02f 64-bit2569    50%
4/8
38%
3/8
19%
1.5/8
    
Schooner 1.8 64-bit2568  50%
2/4
64%
11.5/18
       
Coiled 0.4 64-bit2563 62%
5/8
 61%
19.5/32
       
SOS 5.12563  50%
6/12
   25%
2/8
    
Capivara LK 0.09b02g 64-bit2562 75%
7.5/10
 67%
8/12
38%
3/8
      
Zurichess Glarus 64-bit2559   50%
5/10
46%
5.5/12
42%
2.5/6
     
JikChess 0.02 64-bit2558  46%
5.5/12
57%
8/14
38%
1.5/4
65%
6.5/10
45%
4.5/10
    
Dorky 4.8 64-bit2557 31%
2.5/8
62%
2.5/4
        
Carballo 1.5 64-bit2556  46%
5.5/12
45%
4.5/10
       
tomitankChess 1.4 64-bit2556  71%
8.5/12
50%
1/2
       
Arasan 12.0 64-bit2555     60%
6/10
31%
2.5/8
    
Capivara LK 0.09b02c 64-bit2555  58%
7/12
50%
5/10
       
RubiChess 0.9 64-bit2554  75%
9/12
67%
4/6
   0%
0/6
   
Ghost 3.1 64-bit2551  66%
10.5/16
46%
13/28
       
chess22k 1.3 64-bit2538 69%
5.5/8
 50%
5/10
       
Phalanx XXIV2537     40%
2/5
30%
3/10
    
Maverick 1.5 64-bit2536    38%
1.5/4
55%
6/11
75%
3/4
    
Marvin 2.0.0 64-bit2533  62%
7.5/12
     8%
1/12
  
NameEloK2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.75
K2
0.79
K2
0.71
K2
0.67
K2
0.57
K2
0.43f
nanoSzachy 4.1 64-bit2533   50%
7/14
56%
9/16
0%
0/1
33%
4/12
    
Fridolin 2.00 64-bit2531   60%
6/10
50%
2/4
40%
6/15
38%
6/16
    
Orion 0.5 64-bit2527  68%
13.5/20
44%
3.5/8
       
Donna 3.1 64-bit2518     56%
5/9
15%
1.5/10
    
Bagatur 1.5e 64-bit2517  84%
13.5/16
50%
6/12
       
AnMon 5.602514     45%
4.5/10
 25%
2.5/10
   
CyberPagno 3.0 64-bit2514 62%
5/8
 75%
10.5/14
25%
1/4
   30%
3/10
  
Floyd 0.8 64-bit2509   45%
4.5/10
50%
6/12
   15%
1.5/10
  
Maverick 1.0 64-bit2508     60%
12/20
  50%
5/10
  
Tao 5.62502     50%
0.5/1
50%
1/2
    
Pupsi2 0.092499     50%
1/2
0%
0/2
    
LittleThought 1.052 64-bit2497     50%
1/2
75%
1.5/2
    
Delphil 3.2 64-bit2495    56%
4.5/8
52%
11/21
50%
6/12
    
Pepito 1.59.2 64-bit2495     25%
1/4
75%
1.5/2
40%
4/10
   
JikChess 0.01 64-bit2488     45%
10/22
 75%
7.5/10
19%
1.5/8
  
Yace 0.99.872487     50%
0.5/1
50%
1/2
    
Ghost 2.0.2 64-bit2485    62%
5/8
54%
13.5/25
46%
5.5/12
29%
4/14
0%
0/4
  
KnightX 1.97a 64-bit2484 75%
4.5/6
    33%
2/6
    
Zurichess Geneva 64-bit2483      25%
3.5/14
44%
3.5/8
   
Xpdnt 0910072482     25%
0.5/2
50%
1/2
    
NameEloK2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.75
K2
0.79
K2
0.71
K2
0.67
K2
0.57
K2
0.43f
Pawny 0.3.1 64-bit2474     40%
4/10
 35%
3.5/10
   
Shield 1.2 64-bit2473    56%
4.5/8
50%
4/8
0%
0/2
    
Trace 1.37a2471      44%
3.5/8
0%
0/1
   
Jumbo 0.6.31 64-bit2469   58%
7/12
   19%
1.5/8
   
Quark 2.352469     100%
1/1
75%
1.5/2
    
Carballo 1.22463     42%
5/12
 55%
5.5/10
   
Carballo 1.32462     42%
5/12
50%
5/10
    
Giraffe 20150908 64-bit2462    62%
2.5/4
0%
0/2
45%
4.5/10
 50%
4/8
  
Bumblebee 1.0 64-bit2461     45%
4.5/10
50%
1/2
    
Bumblebee 1.0.36898e1 64-bit2447    62%
2.5/4
  45%
4.5/10
   
Abrok 5.02444    62%
5/8
60%
6/10
44%
3.5/8
15%
1.5/10
   
Hussar 0.42444  100%
1/1
    50%
0.5/1
   
Typhoon 1.00-3482444    50%
4/8
 38%
3/8
    
Betsabe II 1.472443     52%
11.5/22
39%
7/18
32%
6/19
50%
2/4
  
Lozza 1.17a 64-bit2443    88%
3.5/4
   40%
4/10
  
Eeyore 1.52 64-bit2441   50%
0.5/1
 60%
6/10
     
Zurichess Fribourg 64-bit2440     50%
1/2
  50%
5/10
  
Snitch 1.6.2 64-bit2435     50%
1/2
 50%
5/10
   
Bitfoot 1.0.d9aeb43 64-bit2421     50%
1/2
75%
12/16
    
Cmcchess 2.6 64-bit2421    75%
9/12
75%
1.5/2
42%
7.5/18
 40%
4/10
  
NameEloK2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.75
K2
0.79
K2
0.71
K2
0.67
K2
0.57
K2
0.43f
Ares 1.005 64-bit2418    44%
3.5/8
50%
2/4
56%
4.5/8
40%
6/15
62%
2.5/4
  
Gaia 3.5 64-bit2416     71%
8.5/12
56%
4.5/8
50%
5.5/11
   
Shallow r688 64-bit2413     53%
8.5/16
62%
5/8
58%
10.5/18
88%
3.5/4
  
Ares 1.005.2 64-bit2411    88%
3.5/4
100%
1/1
67%
4/6
50%
5/10
   
Simplex 0.9.8 64-bit2401    56%
4.5/8
79%
9.5/12
62%
5/8
45%
4.5/10
   
Tigran 2.4n 64-bit2400    100%
8/8
53%
9.5/18
56%
4.5/8
64%
11.5/18
12%
0.5/4
  
Lozza 1.16 64-bit2398    81%
6.5/8
 72%
13/18
 70%
7/10
  
Myrddin 0.87 64-bit2396    50%
4/8
12%
0.5/4
42%
2.5/6
62%
2.5/4
56%
4.5/8
  
Alex 2.14a 64-bit2393     60%
6/10
 70%
7/10
   
Shield 1.1 64-bit2391    69%
5.5/8
 50%
5/10
    
Waxman 20142390     68%
13.5/20
50%
2/4
0%
0/4
46%
5.5/12
  
Giraffe 20150828 64-bit2384      62%
5/8
 40%
4/10
  
Carballo 1.1.12374       65%
6.5/10
45%
4.5/10
  
OliThink 5.3.2 64-bit2374     45%
4.5/10
 70%
7/10
   
iCE 0.22371     70%
7/10
 60%
6/10
   
MadChess 2.0 64-bit2370     100%
2/2
38%
1.5/4
 55%
5.5/10
  
Tytan 9.32 64-bit2368       65%
6.5/10
31%
2.5/8
  
Plisk 0.2.7d 64-bit2362     75%
7.5/10
  40%
4/10
  
Donna 1.0 64-bit2358       75%
6/8
44%
3.5/8
  
Typhoon 1.00-358 64-bit2353       80%
8/10
53%
9.5/18
  
NameEloK2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.75
K2
0.79
K2
0.71
K2
0.67
K2
0.57
K2
0.43f
CyberPagno 2.3 64-bit2343      62%
2.5/4
 50%
5/10
  
Maverick 0.51 64-bit2341       64%
9/14
42%
2.5/6
  
Jazz 840 64-bit2340     75%
1.5/2
62%
2.5/4
50%
2/4
   
Gibbon 2.60a 64-bit2337       75%
3/4
 25%
0.5/2
 
CyberPagno 2.2 64-bit2336     100%
2/2
 53%
9.5/18
42%
2.5/6
  
Nemeton 1.12331       50%
9/18
58%
3.5/6
  
Bagatur 1.3a 64-bit2326       75%
7.5/10
 0%
0/2
 
Gibbon 2.69a 64-bit2319     90%
9/10
75%
3/4
    
EveAnn 1.71a2318        71%
8.5/12
20%
2/10
 
Popochin 2.92316        55%
5.5/10
65%
6.5/10
 
Nemeton 1.22309     50%
3/6
 88%
3.5/4
62%
2.5/4
  
NoraGrace 1.0 64-bit2308        50%
5/10
30%
3/10
 
pikoSzachy Extreme2308       75%
3/4
50%
2/4
  
Anechka 0.082301   100%
1/1
      0%
0/2
Fischerle 0.9.65 64-bit2289     75%
1.5/2
100%
4/4
    
FireFly 2.7.0 64-bit2287     75%
1.5/2
 88%
3.5/4
55%
5.5/10
0%
0/2
30%
3/10
Orion 0.2 64-bit2279     50%
1/2
  67%
8/12
0%
0/2
 
Ayito 0.2.9942268        25%
1/4
 50%
1/2
Protej 0.5.8c2256     100%
2/2
  50%
7/14
25%
3/12
 
RattateChess 1.0 Nosferatu2253        62%
2.5/4
 50%
1/2
NameEloK2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.75
K2
0.79
K2
0.71
K2
0.67
K2
0.57
K2
0.43f
Exacto 0.e 64-bit2252        66%
10.5/16
25%
0.5/2
33%
2/6
MadChess 1.4 64-bit2248         33%
4/12
40%
4/10
Mango Paola Ajedrez 4.12245        64%
9/14
29%
3.5/12
30%
3/10
Absolute Zero 2.4.0.0 64-bit2243        67%
4/6
100%
2/2
75%
1.5/2
AliChess 4.062234         45%
4.5/10
50%
4/8
Buzz 0.08 64-bit2234        64%
9/14
 0%
0/4
Neurosis 2.32214        70%
7/10
45%
4.5/10
 
Adam 3.32211        60%
6/10
 50%
1/2
ChessKISS 1.7 64-bit2209        70%
7/10
 45%
4.5/10
Carballo 0.82195        67%
4/6
25%
0.5/2
31%
5.5/18
NG-Play 9.85 64-bit2191         52%
11.5/22
50%
2/4
EXchess 5.04b 64-bit2187         70%
7/10
25%
2/8
Prophet 2.0 64-bit2177         55%
11/20
50%
2/4
ProChess 1.02AD2163        78%
12.5/16
50%
6/12
65%
6.5/10
Chesley r323 64-bit2162        68%
9.5/14
60%
6/10
38%
1.5/4
Waxman 20082139         75%
7.5/10
62%
5/8
Napoleon 1.5.0 64-bit2123        67%
4/6
62%
12.5/20
46%
5.5/12
BikJump 2.01 64-bit2122         70%
7/10
33%
4/12
Clarabit 1.00 64-bit2105         100%
4/4
75%
6/8
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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Rating list
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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 May 8, 2021