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 9 engines!
9 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+
1Isa 2.0.83 64-bit2372+23−2350.2%−3.225.9%700 
73.6%
 Isa 2.0.64 64-bit2363+16−1652.6%−19.627.3%1415
77.9%
 Isa 2.1 64-bit2351+28−2851.2%−13.424.8%456
93.5%
 Isa 2.0.61 64-bit2319+30−3050.0%−4.327.9%383
98.8%
 Isa 2.0.48 64-bit2270+30−3050.5%−4.833.5%373
67.8%
 Isa 2.0.45 64-bit2260+28−2849.6%+1.528.9%450
93.9%
 Isa 1.9.68 64-bit2228+30−3050.0%+2.227.8%374
98.3%
 Isa 1.9.63 64-bit2185+26−2744.6%+36.828.9%501
73.4%
 Isa 1.9.51 64-bit2173+27−2752.5%−19.824.0%496
 

Results matrix

Custom engine selection
#NameElo123456789
1Isa 2.0.83 64-bit2372         
2Isa 2.0.64 64-bit2363         
3Isa 2.1 64-bit2351         
4Isa 2.0.61 64-bit2319         
5Isa 2.0.48 64-bit2270         
6Isa 2.0.45 64-bit2260         
7Isa 1.9.68 64-bit2228         
8Isa 1.9.63 64-bit2185         
9Isa 1.9.51 64-bit2173         
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
1Isa 2.0.83 64-bit2372 73.688.199.7100.0100.0100.0100.0100.0
2Isa 2.0.64 64-bit236326.4 77.999.5100.0100.0100.0100.0100.0
3Isa 2.1 64-bit235111.922.1 93.5100.0100.0100.0100.0100.0
4Isa 2.0.61 64-bit23190.30.56.5 98.899.7100.0100.0100.0
5Isa 2.0.48 64-bit22700.00.00.01.2 67.897.3100.0100.0
6Isa 2.0.45 64-bit22600.00.00.00.332.2 93.9100.0100.0
7Isa 1.9.68 64-bit22280.00.00.00.02.76.1 98.399.6
8Isa 1.9.63 64-bit21850.00.00.00.00.00.01.7 73.4
9Isa 1.9.51 64-bit21730.00.00.00.00.00.00.426.6 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo123456789
1Isa 2.0.83 64-bit2372 58443270687218624
2Isa 2.0.64 64-bit2363584 416367325315146166128
3Isa 2.1 64-bit2351432416 23223322117915752
4Isa 2.0.61 64-bit231970367232 36041025227756
5Isa 2.0.48 64-bit227068325233360 49135324096
6Isa 2.0.45 64-bit226072315221410491 526407188
7Isa 1.9.68 64-bit222818146179252353526 419230
8Isa 1.9.63 64-bit21856166157277240407419 319
9Isa 1.9.51 64-bit217324128525696188230319 
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
1Isa 2.0.83 64-bit2372 27.637.46.56.36.31.70.52.0
2Isa 2.0.64 64-bit236327.6 22.220.418.216.98.28.76.7
3Isa 2.1 64-bit235137.422.2 27.728.124.421.616.45.5
4Isa 2.0.61 64-bit23196.520.427.7 47.649.233.331.36.4
5Isa 2.0.48 64-bit22706.318.228.147.6 59.747.327.511.0
6Isa 2.0.45 64-bit22606.316.924.449.259.7 63.842.819.9
7Isa 1.9.68 64-bit22281.78.221.633.347.363.8 47.926.4
8Isa 1.9.63 64-bit21850.58.716.431.327.542.847.9 32.0
9Isa 1.9.51 64-bit21732.06.75.56.411.019.926.432.0 
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 136 common opponents

Custom engine selection
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
Axolotl 1.9 64-bit2529 35%
3.5/10
0%
0/1
      
Delphil 3.2 64-bit2495  42%
2.5/6
0%
0/1
     
Pepito 1.59.2 64-bit2495 62%
2.5/4
8%
0.5/6
      
MadChess 2.2 64-bit2494 25%
1/4
50%
3/6
      
Jumbo 0.6.10 64-bit2483 0%
0/4
 38%
1.5/4
     
Drosophila 1.5.1 64-bit247938%
1.5/4
50%
7/14
       
Raven 0.90 64-bit2469 31%
2.5/8
0%
0/4
      
Nemeton 1.81246467%
4/6
 33%
2/6
      
Bumblebee 1.0 64-bit2461 25%
1/4
17%
1/6
      
Nemeton 1.512453       15%
1.5/10
8%
0.5/6
Orion 0.4 64-bit2452 62%
2.5/4
 62%
2.5/4
     
Bumblebee 1.0.36898e1 64-bit244788%
3.5/4
  25%
1/4
 38%
1.5/4
   
Stash 18.0 64-bit244750%
1/2
50%
5/10
       
Bearded N44.5 64-bit2442 25%
2/8
  5%
0.5/10
    
Shallow r694 64-bit2442 75%
3/4
 38%
1.5/4
 0%
0/4
   
Teki 2 64-bit243950%
6/12
52%
16.5/32
       
Tunguska 1.1 64-bit243933%
10.5/32
35%
3.5/10
       
Cmcchess 2.6 64-bit242125%
0.5/2
25%
1/4
       
Kiwi 0.6d 32-bit2420 62%
2.5/4
 33%
2/6
     
Monolith 0.3 64-bit2417 83%
2.5/3
 38%
1.5/4
38%
1.5/4
    
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
Gaia 3.5 64-bit241662%
2.5/4
62%
2.5/4
25%
1.5/6
42%
2.5/6
     
Hedgehog 2.0 64-bit241438%
10/26
 25%
1/4
      
RomiChess P3n 64-bit241453%
9.5/18
58%
11.5/20
75%
3/4
50%
2/4
20%
2/10
    
Ares 1.005.2 64-bit2411 17%
0.5/3
   12%
0.5/4
   
Gosu 0.162402 14%
1/7
 50%
3/6
     
Simplex 0.9.8 64-bit240138%
1.5/4
38%
1.5/4
 25%
1.5/6
     
KnightDreamer 3.3239730%
3/10
38%
1.5/4
50%
3/6
      
Myrddin 0.87 64-bit239652%
10.5/20
18%
3.5/19
44%
7/16
  40%
4/10
   
Popochin 4.1 64-bit239638%
4.5/12
40%
9.5/24
75%
1.5/2
      
Amateur 2.822395  33%
2/6
42%
2.5/6
     
Patzer 3.802395 12%
0.5/4
17%
1/6
      
Alex 2.14a 64-bit2393 75%
3/4
 33%
2/6
     
Ares GB 1.1 64-bit239140%
12/30
56%
4.5/8
       
Ares GB 64-bit239146%
6.5/14
45%
24.5/54
25%
1/4
      
CT800 1.40 64-bit239153%
9.5/18
 50%
2/4
      
Zevra 2.1.2 r248 64-bit239059%
16.5/28
55%
5.5/10
33%
4/12
      
Galjoen 0.39 64-bit238745%
4.5/10
23%
3/13
       
Googleplex Starthinker 1.6 64-bit238642%
14/33
70%
7/10
41%
11.5/28
      
Tytan 9.32384 25%
1/4
33%
2/6
      
Thor's Hammer 2.28 32-bit238350%
1/2
12%
0.5/4
       
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
Zevra 2.1.1 r216 64-bit238055%
5.5/10
46%
5.5/12
       
Waxman 20162378   38%
1.5/4
 62%
2.5/4
   
OliThink 5.3.2 64-bit2374 75%
3/4
  25%
2.5/10
40%
4/10
   
Waxman 2017237046%
5.5/12
48%
11.5/24
       
Raven 0.80 64-bit236850%
1/2
 25%
1.5/6
      
Plisk 0.2.7d 64-bit236250%
1/2
47%
7/15
25%
1.5/6
 55%
5.5/10
    
Barbarossa 0.6.0 64-bit235253%
32/60
 50%
9/18
      
KnightX 1.94 64-bit235275%
3/4
54%
18.5/34
       
Jazz 840 64-bit234062%
2.5/4
50%
6/12
       
Aice 0.99.22339 62%
2.5/4
 83%
5/6
 55%
5.5/10
   
Napoleon 1.8 64-bit233838%
1.5/4
50%
6/12
       
Gibbon 2.60a 64-bit2337 44%
3.5/8
67%
4/6
      
Asterisk 0.62332 62%
5/8
 75%
4.5/6
     
Amundsen 0.802328 58%
7/12
 50%
3/6
50%
5/10
    
FireFly 2.7.2 64-bit232835%
3.5/10
66%
21/32
67%
8/12
55%
5.5/10
39%
5.5/14
17%
1/6
   
Zeus 1.272324 50%
2/4
42%
2.5/6
      
Chezzz 1.0.32322 33%
4/12
 50%
3/6
     
Googleplex Starthinker 1.4 64-bit232042%
2.5/6
57%
16/28
       
EveAnn 1.72231950%
3/6
60%
21/35
100%
1/1
50%
2/4
50%
2/4
46%
5.5/12
29%
4/14
  
Gibbon 2.69a 64-bit2319 38%
1.5/4
  40%
4/10
33%
4/12
39%
5.5/14
30%
3/10
25%
2/8
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
EveAnn 1.71a2318 88%
3.5/4
 42%
2.5/6
     
KnightX 1.922316 58%
7/12
 33%
2/6
40%
4/10
45%
4.5/10
 35%
3.5/10
 
Asymptote 0.2.0 64-bit2314 50%
19.5/39
 25%
1.5/6
     
Averno 0.812314 46%
5.5/12
 33%
2/6
50%
5/10
40%
4/10
25%
2.5/10
55%
5.5/10
 
Mediocre 0.42311  67%
4/6
67%
4/6
     
Nemeton 1.22309       20%
2/10
44%
3.5/8
RubiChess 0.7 64-bit2302 58%
7/12
50%
3/6
    75%
4.5/6
 
Anechka 0.082301    50%
5/10
30%
3/10
25%
2.5/10
35%
3.5/10
 
Ant 2006-F2301 54%
6.5/12
50%
3/6
58%
3.5/6
 80%
8/10
20%
2/10
  
Joker 1.1.142301 38%
3/8
67%
4/6
42%
2.5/6
50%
2/4
0%
0/2
62%
2.5/4
  
Fischerle 0.9.80 SE 64-bit2300   58%
3.5/6
38%
6/16
31%
5/16
36%
5/14
  
Schooner 1.5 64-bit2300      45%
4.5/10
25%
3.5/14
31%
2.5/8
Natwarlal 0.142298 62%
2.5/4
 58%
10.5/18
 40%
4/10
 15%
1.5/10
 
Absolute Zero 2.4.7.2 64-bit2296 62%
2.5/4
42%
2.5/6
50%
5/10
12%
0.5/4
25%
2/8
53%
9.5/18
25%
3.5/14
25%
2/8
CT800 1.34 64-bit229650%
2/4
56%
4.5/8
100%
2/2
      
Fischerle 0.9.70 SE 64-bit2295 50%
2/4
     25%
1/4
56%
4.5/8
Invictus r228 64-bit229275%
3/4
54%
7.5/14
       
Matilde 2008 64-bit2290 75%
3/4
92%
5.5/6
58%
3.5/6
40%
4/10
45%
4.5/10
39%
5.5/14
25%
2.5/10
 
Chaturanga 2.4.32289 88%
7/8
 58%
3.5/6
 70%
7/10
 20%
2/10
 
FireFly 2.7.0 64-bit2287    50%
0.5/1
29%
3.5/12
46%
6.5/14
43%
6/14
 
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
Bearded N44.2 64-bit2286     38%
1.5/4
38%
1.5/4
43%
6/14
 
Galjoen 0.38 64-bit2284 59%
9.5/16
     12%
0.5/4
38%
1.5/4
AliChess 4.252282 75%
6/8
67%
4/6
      
Chispa 4.0.32274 88%
3.5/4
33%
2/6
50%
3/6
 35%
3.5/10
35%
3.5/10
45%
4.5/10
 
Ayito 0.2.9942268  75%
4.5/6
50%
3/6
55%
5.5/10
  35%
3.5/10
 
CeeChess 1.3.2 64-bit226877%
23/30
 80%
8/10
      
CT800 1.30 64-bit2256 54%
7.5/14
50%
3/6
     39%
5.5/14
Protej 0.5.8c2256   83%
5/6
 25%
0.5/2
 50%
5/10
 
Absolute Zero 3.3.2.0 64-bit225357%
8/14
 58%
3.5/6
      
RattateChess 1.0 Nosferatu2253  75%
4.5/6
75%
4.5/6
45%
4.5/10
 45%
4.5/10
  
Exacto 0.e 64-bit2252   42%
2.5/6
70%
7/10
  50%
5/10
 
Beowulf 2.4a 64-bit2249   42%
2.5/6
55%
5.5/10
55%
5.5/10
   
Lozza 1.14a 64-bit2246       39%
3.5/9
19%
1.5/8
Mango Paola Ajedrez 4.12245  92%
5.5/6
  50%
1/2
40%
4/10
50%
5/10
 
Atak 6.82237  33%
2/6
67%
4/6
   45%
4.5/10
 
Buzz 0.08 64-bit2234   33%
2/6
50%
5/10
40%
4/10
50%
5/10
  
RamJet 0.132232  50%
3/6
67%
4/6
38%
1.5/4
68%
9.5/14
53%
9.5/18
62%
2.5/4
0%
0/2
Dolphin 1.0 64-bit2230  67%
4/6
67%
4/6
40%
4/10
35%
3.5/10
 39%
3.5/9
 
SpaceDog 0.97.7 64-bit223070%
7/10
 62%
7.5/12
      
Tiny Chess 1.46 64-bit2222 78%
7/9
100%
6/6
67%
4/6
72%
11.5/16
64%
9/14
   
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
Robocide 20170718 64-bit2220 62%
5/8
  70%
7/10
   31%
2.5/8
Uralochka 1.1b2218  58%
3.5/6
 45%
4.5/10
 70%
7/10
70%
7/10
 
CT800 1.12 64-bit2216 62%
2.5/4
  100%
2/2
    
ChessKISS 1.7c 64-bit2214     82%
11.5/14
50%
5/10
 50%
9/18
Joker2 0.7.7 64-bit2214 69%
5.5/8
      62%
5/8
Neurosis 2.32214  83%
5/6
 45%
4.5/10
55%
5.5/10
   
OBender 03.2016 64-bit2214   42%
2.5/6
54%
6.5/12
50%
9/18
46%
6.5/14
39%
5.5/14
31%
5.5/18
Adam 3.32211  67%
4/6
58%
3.5/6
55%
5.5/10
35%
3.5/10
65%
6.5/10
  
Napoleon 1.6.0b 64-bit2207       61%
8.5/14
50%
1/2
Latista (Sinobyl) 1.52206  50%
3/6
67%
4/6
75%
7.5/10
45%
4.5/10
30%
3/10
  
Baislicka 1.0 64-bit2205 62%
5/8
  67%
4/6
54%
6.5/12
   
ChessAlex 2.0r42203   75%
4.5/6
   80%
8/10
 
Achillees 1.0 64-bit219875%
13.5/18
 83%
5/6
      
Dorpsgek Dillinger 64-bit2194   75%
4.5/6
67%
4/6
57%
8/14
   
NG-Play 9.85 64-bit2191    65%
6.5/10
 60%
6/10
  
NG-Play 9.87 64-bit2190     83%
5/6
75%
3/4
88%
3.5/4
50%
5/10
GopherCheck 0.2.3 64-bit2189   75%
4.5/6
72%
11.5/16
54%
7.5/14
61%
8.5/14
25%
0.5/2
 
Zevra 1.8.2 r612 64-bit2189 75%
3/4
      50%
2/4
NagaSkaki 5.122186     65%
6.5/10
50%
5/10
30%
3/10
 
MORA 1.1.0218375%
3/4
 92%
5.5/6
     50%
4/8
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
Lime 662182      45%
4.5/10
68%
7.5/11
 
NG-Play 9.87b 64-bit2182 100%
4/4
  100%
2/2
    
Soldat III 0.187 64-bit2177    17%
1/6
62%
7.5/12
   
Clever Girl r185 64-bit217050%
2/4
75%
3/4
     0%
0/2
70%
7/10
Chesley r323 64-bit2162   92%
5.5/6
   65%
6.5/10
62%
5/8
Micah 1.0 64-bit216292%
5.5/6
 100%
6/6
      
Dorpsgek Cosmopolitan 2 64-bit2152      75%
3/4
62%
2.5/4
28%
5/18
Blitzkrieg rev337 64-bit2141    0%
0/2
62%
7.5/12
62%
2.5/4
75%
7.5/10
42%
7.5/18
Parrot 07.07.222136     80%
8/10
60%
6/10
45%
4.5/10
 
Barbarossa 0.4.0 64-bit2133     92%
11/12
79%
11/14
50%
7/14
61%
8.5/14
Tunguska 1.0 64-bit2129    75%
1.5/2
75%
1.5/2
62%
2.5/4
 80%
8/10
BigLion 2.23w2077      75%
3/4
55%
5.5/10
81%
6.5/8
Galjoen 0.36 64-bit2074     50%
1/2
 60%
6/10
 
Little Wing 0.6.0 64-bit2074  100%
2/2
    50%
4/8
 
Soldat III 0.178 64-bit2070       50%
5/10
70%
7/10
Cinnamon 2.0 64-bit2036      62%
2.5/4
 40%
4/10
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
Testing profile
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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
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  Recalibrate current list to reference using all common engines


Created in 2005-2013 by CCRL team
Last games added on May 8, 2021