CCRL 40/15
Downloads and Statistics
May 15, 2021
Testing summary:
Total: 1'244'261 games
played by 2'847 programs

White wins: 426'196 (34.3%)
Black wins: 313'011 (25.2%)
Draws: 505'054 (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 15, 2021 with Bayeselo based on 1'244'261 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+
1KnightX 2.61 64-bit2625+32−3245.8%+26.934.9%324 
60.7%
 KnightX 2.7 64-bit2619+29−3044.2%+42.036.1%382
85.2%
 KnightX 2.4 64-bit2598+28−2851.6%−12.134.2%438
99.8%
 KnightX 1.98 64-bit2542+27−2749.1%+7.530.5%482
82.5%
 KnightX 2.3 64-bit2525+26−2648.7%+10.131.8%512
98.3%
 KnightX 1.97a 64-bit2485+26−2651.3%−12.325.8%523
100.0%
 KnightX 1.94 64-bit2352+22−2249.5%+2.625.9%744
98.1%
 KnightX 1.93 64-bit2321+20−2051.6%−12.720.3%930
61.2%
 KnightX 1.922317+19−1948.6%+10.127.9%1046
 

Results matrix

Custom engine selection
#NameElo123456789
1KnightX 2.61 64-bit2625         
2KnightX 2.7 64-bit2619         
3KnightX 2.4 64-bit2598         
4KnightX 1.98 64-bit2542         
5KnightX 2.3 64-bit2525         
6KnightX 1.97a 64-bit2485         
7KnightX 1.94 64-bit2352         
8KnightX 1.93 64-bit2321         
9KnightX 1.922317         
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
1KnightX 2.61 64-bit2625 60.790.0100.0100.0100.0100.0100.0100.0
2KnightX 2.7 64-bit261939.3 85.2100.0100.0100.0100.0100.0100.0
3KnightX 2.4 64-bit259810.014.8 99.8100.0100.0100.0100.0100.0
4KnightX 1.98 64-bit25420.00.00.2 82.599.9100.0100.0100.0
5KnightX 2.3 64-bit25250.00.00.017.5 98.3100.0100.0100.0
6KnightX 1.97a 64-bit24850.00.00.00.11.7 100.0100.0100.0
7KnightX 1.94 64-bit23520.00.00.00.00.00.0 98.199.2
8KnightX 1.93 64-bit23210.00.00.00.00.00.01.9 61.2
9KnightX 1.9223170.00.00.00.00.00.00.838.8 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo123456789
1KnightX 2.61 64-bit2625 668968011612000
2KnightX 2.7 64-bit2619668 1128612412000
3KnightX 2.4 64-bit259896112 3402861603600
4KnightX 1.98 64-bit25428086340 4202501228413
5KnightX 2.3 64-bit2525116124286420 16412042
6KnightX 1.97a 64-bit24851212160250164 72242170
7KnightX 1.94 64-bit235200361221272 514111
8KnightX 1.93 64-bit2321000840242514 381
9KnightX 1.9223170001342170111381 
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
1KnightX 2.61 64-bit2625 94.612.69.913.91.40.00.00.0
2KnightX 2.7 64-bit261994.6 13.710.013.91.30.00.00.0
3KnightX 2.4 64-bit259812.613.7 37.030.116.63.00.00.0
4KnightX 1.98 64-bit25429.910.037.0 42.324.910.05.90.9
5KnightX 2.3 64-bit252513.913.930.142.3 15.81.00.02.7
6KnightX 1.97a 64-bit24851.41.316.624.915.8 5.716.710.8
7KnightX 1.94 64-bit23520.00.03.010.01.05.7 30.76.2
8KnightX 1.93 64-bit23210.00.00.05.90.016.730.7 19.3
9KnightX 1.9223170.00.00.00.92.710.86.219.3 
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 118 common opponents

Custom engine selection
NameEloKnightX
2.61
64-bit
KnightX
2.7
64-bit
KnightX
2.4
64-bit
KnightX
1.98
64-bit
KnightX
2.3
64-bit
KnightX
1.97a
64-bit
KnightX
1.94
64-bit
KnightX
1.93
64-bit
KnightX
1.92
Devel 3.8.4278430%
3/10
28%
4.5/16
       
Bright 0.5c277815%
1.5/10
33%
4/12
       
Jonny 4.00277635%
3.5/10
58%
7/12
       
Spike 1.2 Turin274520%
2/10
46%
5.5/12
       
Shield 2.1 64-bit27275%
0.5/10
38%
4.5/12
38%
3/8
      
GreKo 2020.03 64-bit271538%
1.5/4
25%
1/4
31%
2.5/8
      
GreKo 2020.01 64-bit271040%
4/10
38%
4.5/12
  22%
4/18
    
K2 0.99270736%
5/14
22%
3.5/16
       
Ktulu 8270620%
2/10
42%
5/12
31%
2.5/8
      
Chessmaster 11 Conqueror269545%
4.5/10
29%
3.5/12
  14%
2.5/18
    
ECE 20.1 64-bit269350%
2/4
75%
3/4
31%
2.5/8
      
Velvet 1.1.0 64-bit268540%
4/10
50%
6/12
       
Fridolin 3.10 64-bit268340%
4/10
58%
7/12
       
Shallow 2020-09-09 64-bit267525%
1/4
25%
1/4
 25%
5/20
     
RedQueen 1.1.3 64-bit2673   12%
1.5/12
31%
5.5/18
    
Ktulu 7.52664  36%
5/14
25%
3/12
     
K2 0.952663  25%
3.5/14
33%
4/12
 25%
1.5/6
   
Scorpio 1.91266135%
3.5/10
50%
6/12
 29%
3.5/12
     
Mr Bob 0.8.0 64-bit2655   31%
5.5/18
12%
0.5/4
    
Supernova 2.3 64-bit265262%
2.5/4
38%
1.5/4
30%
6/20
      
NameEloKnightX
2.61
64-bit
KnightX
2.7
64-bit
KnightX
2.4
64-bit
KnightX
1.98
64-bit
KnightX
2.3
64-bit
KnightX
1.97a
64-bit
KnightX
1.94
64-bit
KnightX
1.93
64-bit
KnightX
1.92
Drosophila 1.6 64-bit264957%
8/14
53%
8.5/16
 25%
2.5/10
53%
9.5/18
    
Ktulu 7.12638    31%
5.5/18
38%
4.5/12
   
Gandalf 62635   42%
5/12
 21%
2.5/12
   
WildCat 72628   21%
2.5/12
 30%
3/10
   
Caligula 0.9g262260%
6/10
38%
4.5/12
       
Pharaon 3.5.1261460%
6/10
42%
5/12
       
Sloppy 0.2.2 64-bit261335%
3.5/10
38%
4.5/12
       
Betsabe II 2020260955%
5.5/10
67%
8/12
62%
2.5/4
      
Lozza 2.0 64-bit2609 38%
1.5/4
40%
8/20
      
Aristarch 4.502597   38%
4.5/12
 25%
3/12
   
N2 0.4 64-bit259535%
3.5/10
58%
7/12
       
Muse 0.953 64-bit259475%
7.5/10
67%
8/12
       
Petir 4.39259440%
4/10
38%
4.5/12
 46%
5.5/12
39%
7/18
    
Pseudo 0.7c259250%
5/10
25%
3/12
       
Amyan 1.72259060%
6/10
50%
6/12
       
Brutus 8.05 64-bit258940%
4/10
54%
6.5/12
       
Galjoen 0.40 64-bit258970%
7/10
54%
6.5/12
62%
2.5/4
  25%
1/4
   
Coiled 0.6 64-bit258640%
4/10
38%
4.5/12
       
Donna 4.1 64-bit2585  79%
11/14
92%
11/12
55%
12/22
    
CuckooChess 1.12 32-bit258480%
8/10
71%
8.5/12
       
NameEloKnightX
2.61
64-bit
KnightX
2.7
64-bit
KnightX
2.4
64-bit
KnightX
1.98
64-bit
KnightX
2.3
64-bit
KnightX
1.97a
64-bit
KnightX
1.94
64-bit
KnightX
1.93
64-bit
KnightX
1.92
Drofa 2.1.0 64-bit258280%
8/10
54%
6.5/12
       
SOS 5.12564  50%
7/14
50%
6/12
 25%
3/12
   
Nawito 2012256195%
9.5/10
54%
6.5/12
       
Jumbo 0.7.0 64-bit2559  12%
0.5/4
58%
11.5/20
75%
3/4
39%
5.5/14
   
Mr Bob 0.7.1 64-bit2558   50%
10/20
25%
1/4
    
Velvet 1.0.0 64-bit2557  57%
12.5/22
 50%
10/20
    
Detroid 1.0.1 64-bit2554  58%
10.5/18
59%
9.5/16
44%
8/18
12%
0.5/4
   
Ghost 3.1 64-bit2552  75%
3/4
 50%
2/4
69%
5.5/8
   
FrankWalter 2.4.0 64-bit2542  62%
2.5/4
50%
2/4
 38%
4.5/12
21%
7/34
  
Axolotl 1.9 64-bit2530  61%
11/18
69%
11/16
43%
9.5/22
42%
5/12
   
Raven 1.10 64-bit2528  38%
1.5/4
45%
4.5/10
     
CyberPagno 3.0 64-bit2515   58%
7/12
53%
9.5/18
    
Tao 5.62502  71%
10/14
71%
8.5/12
     
Pupsi2 0.092500  54%
7.5/14
71%
8.5/12
50%
9/18
    
MadChess 2.2 64-bit2494  50%
2/4
   22%
7.5/34
  
Delphil 3.0 64-bit2491    53%
9.5/18
45%
4.5/10
   
Trace 1.362485  71%
10/14
42%
5/12
     
Drosophila 1.5.1 64-bit2479   38%
1.5/4
  31%
10.5/34
  
SpiderChess 0706032476   75%
9/12
58%
10.5/18
    
Lozza 1.18 64-bit2473   50%
2/4
 25%
1/4
 40%
4/10
 
NameEloKnightX
2.61
64-bit
KnightX
2.7
64-bit
KnightX
2.4
64-bit
KnightX
1.98
64-bit
KnightX
2.3
64-bit
KnightX
1.97a
64-bit
KnightX
1.94
64-bit
KnightX
1.93
64-bit
KnightX
1.92
WyldChess 1.2 64-bit2470     50%
4/8
 15%
1.5/10
 
Nemeton 1.812465  38%
1.5/4
69%
5.5/8
66%
14.5/22
38%
1.5/4
   
Carballo 1.22464   58%
7/12
47%
8.5/18
    
Bumblebee 1.0 64-bit2461  61%
8.5/14
 56%
10/18
75%
6/8
   
Mephisto Gideon Professional2447   79%
9.5/12
 50%
4/8
   
Arasan 10.12443     50%
4/8
 35%
3.5/10
38%
1.5/4
Bearded N44.5 64-bit2443   42%
5/12
   21%
3/14
 
Tunguska 1.1 64-bit2440  88%
3.5/4
44%
3.5/8
  42%
16/38
  
Taltos rev118 64-bit2439    58%
10.5/18
   50%
3/6
King of Kings 2.562438  71%
10/14
42%
5/12
53%
9.5/18
    
Snitch 1.6.2 32-bit2438   71%
8.5/12
  37%
12.5/34
30%
3/10
100%
2/2
NoC 4.20 64-bit2428  75%
3/4
38%
1.5/4
62%
2.5/4
    
Ares 1.005.2.1 64-bit2421    64%
11.5/18
   44%
3.5/8
PostModernist 10162418     50%
4/8
  25%
0.5/2
RomiChess P3n 64-bit2414      43%
16.5/38
61%
19.5/32
56%
5/9
Dragon 4.62406       40%
4/10
25%
1/4
Simplex 0.9.8 64-bit2402      38%
13/34
20%
2/10
 
Myrddin 0.87 64-bit2397   75%
3/4
   42%
13.5/32
83%
2.5/3
Popochin 4.1 64-bit2397      25%
1/4
 50%
6/12
Patzer 3.802396     69%
5.5/8
  25%
1/4
NameEloKnightX
2.61
64-bit
KnightX
2.7
64-bit
KnightX
2.4
64-bit
KnightX
1.98
64-bit
KnightX
2.3
64-bit
KnightX
1.97a
64-bit
KnightX
1.94
64-bit
KnightX
1.93
64-bit
KnightX
1.92
Amateur 2.822395     62%
5/8
  36%
2.5/7
Ares GB 64-bit2392   50%
2/4
  12%
0.5/4
39%
15/38
 
Zevra 2.1.2 r248 64-bit2391   100%
4/4
88%
3.5/4
 35%
3.5/10
  
Googleplex Starthinker 1.6 64-bit2387   69%
5.5/8
 25%
1/4
65%
6.5/10
  
Comet B682384       50%
5/10
46%
5.5/12
Thor's Hammer 2.28 32-bit2383     62%
5/8
 30%
3/10
67%
2/3
Zevra 2.1.1 r216 64-bit2381      25%
1/4
38%
1.5/4
 
Jumbo 0.5.3 64-bit2372       40%
4/10
17%
1/6
Waxman 20172371      62%
2.5/4
 38%
5/13
Isa 2.0.64 64-bit2364     56%
4.5/8
46%
15.5/34
44%
14/32
42%
5/12
Plisk 0.2.7d 64-bit2363     81%
6.5/8
  33%
2/6
Flux 2.2.12358      38%
13/34
 50%
1/2
Aice 0.99.22340     44%
3.5/8
  25%
1.5/6
Gibbon 2.60a 64-bit2338     88%
7/8
 45%
4.5/10
50%
1/2
FireFly 2.7.2 64-bit2329      12%
0.5/4
 35%
3.5/10
Chezzz 1.0.32323     75%
6/8
 40%
12/30
75%
3/4
Googleplex Starthinker 1.4 64-bit2321      54%
20.5/38
46%
16.5/36
 
EveAnn 1.722320       39%
11/28
56%
20/36
EveAnn 1.71a2319       62%
2.5/4
50%
1/2
Zeus 1.292304       55%
5.5/10
56%
4.5/8
NameEloKnightX
2.61
64-bit
KnightX
2.7
64-bit
KnightX
2.4
64-bit
KnightX
1.98
64-bit
KnightX
2.3
64-bit
KnightX
1.97a
64-bit
KnightX
1.94
64-bit
KnightX
1.93
64-bit
KnightX
1.92
Ant 2006-F2302     75%
7.5/10
 48%
14.5/30
69%
5.5/8
Natwarlal 0.142299       55%
5.5/10
42%
5/12
CT800 1.34 64-bit2297      66%
22.5/34
60%
21.5/36
 
Invictus r228 64-bit2292       53%
16/30
75%
4.5/6
Matilde 2008 64-bit2291     85%
8.5/10
 55%
5.5/10
100%
2/2
Chaturanga 2.4.32290     60%
6/10
 55%
5.5/10
75%
1.5/2
AliChess 4.252283       65%
19.5/30
50%
1/2
Barbarossa 0.5.0 64-bit2277      47%
16/34
61%
23/38
 
Chispa 4.0.32275       57%
17/30
75%
1.5/2
Ayito 0.2.9942269     90%
9/10
 55%
5.5/10
70%
7/10
Beowulf 2.4a 64-bit2250       57%
17/30
75%
1.5/2
RamJet 0.132232     90%
9/10
 45%
4.5/10
 
SpaceDog 0.97.7 64-bit2230      81%
27.5/34
0%
0/2
 
Joker2 0.7.7 64-bit2215       75%
1.5/2
44%
3.5/8
Madeleine 0.22214      81%
27.5/34
70%
21/30
 
Baislicka 1.0 64-bit2205       25%
0.5/2
45%
4.5/10
Dorpsgek Eve's Temptation 64-bit2200      78%
26.5/34
50%
1/2
 
Clever Girl r185 64-bit2171      100%
4/4
100%
2/2
 
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:
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  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 May 15, 2021