CCRL 40/4
Downloads and Statistics
October 12, 2019
Testing summary:
Total: 2'115'766 games
played by 2'468 programs
28564 CPU days (X2 4600+)

White wins: 821'094 (38.8%)
Black wins: 663'997 (31.4%)
Draws: 630'675 (29.8%)
White score: 53.7%

Custom engine selection

Comparing 10 engines!
10 selected engines played 0 games with each other

CCRL 40/4 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 4 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 1.5 minutes on a modern CPU.
Computed on October 12, 2019 with Bayeselo based on 2'115'766 games

Color legend: Commercial, Free, Open source, Private.
Bold font - tested with 300 games or more. Normal font - less than 300 games.

RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
Elo+
1Zappa Mexico II 64-bit 4CPU2971+7−741.6%+59.438.1%7808 
100.0%
 Zappa Mexico 64-bit 4CPU2946+8−853.5%−24.639.5%5492
94.5%
 Zap!Chess Zanzibar 64-bit 4CPU2929+19−1964.4%−97.238.8%898
100.0%
 Zappa Mexico II 64-bit2844+7−746.4%+25.635.1%9547
69.2%
 Zap!Chess Paderborn 64-bit 4CPU2839+19−1858.9%−60.137.9%947
98.8%
 Zappa Mexico 64-bit2810+16−1652.4%−16.335.3%1401
100.0%
 Zappa Mexico 32-bit2761+21−2152.2%−15.937.3%790
79.9%
 Zap!Chess Zanzibar 32-bit2742+38−3849.8%+1.136.8%220
100.0%
 Zappa 1.1 64-bit2604+11−1147.6%+17.230.5%3306
100.0%
 Zappa 1.1 32-bit2532+24−2442.8%+52.128.8%605
 

Results matrix

Custom engine selection
#NameElo12345678910
1Zappa Mexico II 64-bit 4CPU2971          
2Zappa Mexico 64-bit 4CPU2946          
3Zap!Chess Zanzibar 64-bit 4CPU2929          
4Zappa Mexico II 64-bit2844          
5Zap!Chess Paderborn 64-bit 4CPU2839          
6Zappa Mexico 64-bit2810          
7Zappa Mexico 32-bit2761          
8Zap!Chess Zanzibar 32-bit2742          
9Zappa 1.1 64-bit2604          
10Zappa 1.1 32-bit2532          
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
1Zappa Mexico II 64-bit 4CPU2971 100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Zappa Mexico 64-bit 4CPU29460.0 94.5100.0100.0100.0100.0100.0100.0100.0
3Zap!Chess Zanzibar 64-bit 4CPU29290.05.5 100.0100.0100.0100.0100.0100.0100.0
4Zappa Mexico II 64-bit28440.00.00.0 69.2100.0100.0100.0100.0100.0
5Zap!Chess Paderborn 64-bit 4CPU28390.00.00.030.8 98.8100.0100.0100.0100.0
6Zappa Mexico 64-bit28100.00.00.00.01.2 100.099.9100.0100.0
7Zappa Mexico 32-bit27610.00.00.00.00.00.0 79.9100.0100.0
8Zap!Chess Zanzibar 32-bit27420.00.00.00.00.00.120.1 100.0100.0
9Zappa 1.1 64-bit26040.00.00.00.00.00.00.00.0 100.0
10Zappa 1.1 32-bit25320.00.00.00.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo12345678910
1Zappa Mexico II 64-bit 4CPU2971 622029672006660000
2Zappa Mexico 64-bit 4CPU29466220 138729749813499612028899
3Zap!Chess Zanzibar 64-bit 4CPU29292961387 150999151966019287
4Zappa Mexico II 64-bit2844720297150 1504531936618682
5Zap!Chess Paderborn 64-bit 4CPU28390498999150 1512606028587
6Zappa Mexico 64-bit28106661349151453151 61230047592
7Zappa Mexico 32-bit276109696193260612 194572197
8Zap!Chess Zanzibar 32-bit27420120606660300194 20861
9Zappa 1.1 64-bit26040288192186285475572208 591
10Zappa 1.1 32-bit25320998782879219761591 
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
1Zappa Mexico II 64-bit 4CPU2971 46.83.44.10.07.20.00.00.00.0
2Zappa Mexico 64-bit 4CPU294646.8 21.72.07.719.61.52.13.31.6
3Zap!Chess Zanzibar 64-bit 4CPU29293.421.7 1.454.16.65.75.44.65.8
4Zappa Mexico II 64-bit28444.12.01.4 1.44.11.90.71.40.8
5Zap!Chess Paderborn 64-bit 4CPU28390.07.754.11.4 6.415.05.16.75.6
6Zappa Mexico 64-bit28107.219.66.64.16.4 27.918.510.14.6
7Zappa Mexico 32-bit27610.01.55.71.915.027.9 19.214.014.1
8Zap!Chess Zanzibar 32-bit27420.02.15.40.75.118.519.2 5.97.4
9Zappa 1.1 64-bit26040.03.34.61.46.710.114.05.9 15.1
10Zappa 1.1 32-bit25320.01.65.80.85.64.614.17.415.1 
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 87 common opponents

Custom engine selection
NameEloZappa
Mexico
II
64-bit
4CPU
Zappa
Mexico
64-bit
4CPU
Zap!Chess
Zanzibar
64-bit
4CPU
Zappa
Mexico
II
64-bit
Zap!Chess
Paderborn
64-bit
4CPU
Zappa
Mexico
64-bit
Zappa
Mexico
32-bit
Zap!Chess
Zanzibar
32-bit
Zappa
1.1
64-bit
Zappa
1.1
32-bit
Komodo CCT 64-bit318119%
9.5/50
  9%
3/32
      
Rybka 3 64-bit 4CPU316726%
53/200
24%
24/100
        
Komodo 4 64-bit312732%
16/50
  9%
4.5/50
      
Komodo 3 64-bit310944%
22/50
  14%
4.5/32
      
Rybka 4 64-bit310231%
15.5/50
  20%
15.5/76
      
Stockfish 1.6s JA 64-bit 4CPU309430%
30.5/100
30%
29.5/99
        
Stockfish 1.6.3 64-bit 4CPU309028%
28/100
25%
25/100
        
Naum 4.1 64-bit 4CPU307040%
20/50
34%
17/50
        
Naum 4 64-bit 4CPU306338%
38.5/100
34%
33.5/100
        
Rybka 2.3.2a 64-bit 4CPU304527%
13.5/50
37%
73.5/200
        
Deep Shredder 12 64-bit 4CPU304237%
73.5/200
37%
74.5/200
        
Stockfish 1.5.1 64-bit 4CPU302940%
40/100
43%
43/100
        
Naum 3 64-bit 4CPU298742%
42.5/100
40%
80/200
        
Fritz 13298645%
22.5/50
  32%
10/31
      
Naum 3.1 64-bit 4CPU297942%
42.5/100
46%
45.5/100
        
Rybka 2.3.2a 64-bit297838%
19/50
42%
83/198
 31%
15/49
 26%
19/74
    
Spark 0.3 64-bit 4CPU297055%
55/100
49%
49/100
        
Spark 0.3a 64-bit 4CPU296248%
24/50
49%
24.5/50
        
Thinker 5.4c Inert 64-bit 4CPU295253%
53/100
44%
43.5/100
        
Deep Junior 11.1a 64-bit 4CPU294358%
46/79
48%
24/50
        
NameEloZappa
Mexico
II
64-bit
4CPU
Zappa
Mexico
64-bit
4CPU
Zap!Chess
Zanzibar
64-bit
4CPU
Zappa
Mexico
II
64-bit
Zap!Chess
Paderborn
64-bit
4CPU
Zappa
Mexico
64-bit
Zappa
Mexico
32-bit
Zap!Chess
Zanzibar
32-bit
Zappa
1.1
64-bit
Zappa
1.1
32-bit
Hiarcs 12 4CPU294250%
49.5/100
51%
51/100
        
Deep Sjeng WC2008 64-bit 4CPU294157%
57/100
54%
54.5/100
        
Hiarcs 12.1 4CPU293959%
59/100
54%
54.5/100
        
Komodo 1.0 64-bit293352%
52.5/100
  43%
20.5/48
      
Deep Shredder 11 64-bit 4CPU293252%
24.5/47
53%
158/296
        
Thinker 5.4a Inert 64-bit 4CPU292754%
53.5/100
50%
50.5/100
        
Deep Sjeng c't 2010292652%
26/50
  50%
1/2
      
Rybka 2.3.2a 32-bit2923      30%
27.5/92
30%
6/20
  
Thinker 5.3b Inert 64-bit 4CPU292351%
50/98
58%
57.5/100
        
Glaurung 2.2 64-bit 4CPU291564%
63.5/100
58%
58/100
        
Hiarcs 11.2 4CPU291550%
25/50
55%
109/198
        
Bright 0.4a 4CPU291060%
59.5/100
54%
54.5/100
        
Naum 2.2 64-bit 4CPU290849%
24.5/50
55%
107/196
54%
53/99
       
Bright 0.5c 4CPU290658%
29/50
46%
23/50
        
Toga II 1.4 beta5c 4CPU290451%
25.5/50
54%
53/98
   37%
18.5/50
    
Glaurung 2.1 64-bit 4CPU290053%
53/100
62%
61.5/100
        
Hiarcs 11.1 4CPU2900 57%
113/197
53%
53/100
       
Toga II 1.4.1SE 4CPU290058%
29/50
45%
27/60
   43%
26/60
    
Fritz 112888   49%
33/68
 39%
18/46
    
Loop M1-T 64-bit 4CPU288260%
29.5/49
60%
117.5/197
50%
50/100
       
NameEloZappa
Mexico
II
64-bit
4CPU
Zappa
Mexico
64-bit
4CPU
Zap!Chess
Zanzibar
64-bit
4CPU
Zappa
Mexico
II
64-bit
Zap!Chess
Paderborn
64-bit
4CPU
Zappa
Mexico
64-bit
Zappa
Mexico
32-bit
Zap!Chess
Zanzibar
32-bit
Zappa
1.1
64-bit
Zappa
1.1
32-bit
Bright 0.3b 4CPU287860%
59.5/100
55%
55/100
        
Glaurung 2.0.1 64-bit 4CPU286267%
33.5/50
63%
82.5/131
   42%
35/83
    
Naum 3 64-bit2855   54%
7/13
 50%
6.5/13
    
Bright 0.3a 4CPU285452%
26/50
68%
67.5/99
   40%
19.5/49
    
Rybka 1.0 64-bit2852   48%
14.5/30
    14%
4.5/32
 
Deep Shredder 10 64-bit 4CPU2847 65%
65/100
59%
59/100
 56%
56/100
     
Shredder 112847   53%
23/43
  34%
21/62
   
Deep Shredder 11 64-bit2843   56%
18/32
 43%
20.5/48
    
Hiarcs 11 4CPU2840  66%
66/100
 44%
43.5/100
     
Hiarcs 11.22807     45%
30/66
45%
28.5/64
   
Hiarcs 11.12804     53%
27/51
44%
14/32
   
Fritz 102800     42%
20.5/49
40%
4/10
18%
3.5/20
  
Rybka 1.0 32-bit2792       55%
11/20
16%
5/32
 
Strelka 1.8 32-bit2783 74%
73.5/100
   59%
9.5/16
  23%
7.5/32
 
Loop 13.6 (Loop 2007) 32-bit2776      48%
15.5/32
 9%
2.5/29
10%
2.5/25
Glaurung 1.2.1 32-bit 4CPU2770  74%
74/100
 62%
62.5/100
     
Naum 2.2 32-bit2770     60%
29.5/49
49%
36.5/74
   
Toga II 1.2.1a 32-bit2763  76%
76/100
 59%
58/99
   31%
10/32
 
Bison 9.11 64-bit2762   100%
1/1
    27%
7.5/28
 
Shredder 102754    53%
26.5/50
 56%
18/32
   
NameEloZappa
Mexico
II
64-bit
4CPU
Zappa
Mexico
64-bit
4CPU
Zap!Chess
Zanzibar
64-bit
4CPU
Zappa
Mexico
II
64-bit
Zap!Chess
Paderborn
64-bit
4CPU
Zappa
Mexico
64-bit
Zappa
Mexico
32-bit
Zap!Chess
Zanzibar
32-bit
Zappa
1.1
64-bit
Zappa
1.1
32-bit
Fruit 2.2.12751    66%
33/50
 53%
17/32
   
Glaurung 2.0.1 64-bit2740     59%
48.5/82
  30%
9.5/32
 
Scorpio 2.0 32-bit 4CPU273180%
40/50
72%
71.5/99
   61%
30.5/50
    
Spike 1.2 Turin2731 79%
157/198
85%
85/100
65%
32.5/50
72%
72/100
55%
28/51
56%
18/32
55%
11/20
44%
14/32
29%
8.5/29
Chess Tiger 2007.12713   100%
2/2
 67%
34/51
 52%
10.5/20
44%
14/32
 
Chess Tiger 20072701 78%
75.5/97
   67%
34/51
 50%
10/20
34%
11/32
12%
0.5/4
Naum 2.0 32-bit2700    63%
62.5/99
   37%
11.5/31
 
Delfi 5.42683   100%
1/1
    31%
19.5/62
 
Daydreamer 1.75 64-bit2673   93%
6.5/7
    36%
10.5/29
 
Alaric 7072663   50%
0.5/1
 78%
39/50
61%
19.5/32
 42%
13.5/32
 
Glaurung 1.2.1 32-bit2657        50%
16/32
42%
12.5/30
CM10th Paralyse2655     66%
32.5/49
70%
22.5/32
65%
13/20
  
Scorpio 1.92641      53%
17/32
 44%
14/32
 
CM10th Xperience2639      77%
24.5/32
  40%
11.5/29
Scorpio 1.82624        52%
16.5/32
53%
16/30
Movei 00.8.438 (10 10 10)2623   100%
1/1
  58%
18.5/32
 38%
12/32
42%
2.5/6
Slow Chess Blitz WV2.12615      78%
25/32
 45%
14.5/32
 
Delfi 5.22609      67%
21.5/32
 56%
18/32
 
ProDeo 1.22609        56%
28/50
50%
2/4
Pharaon 3.5.12604      69%
22/32
 65%
20/31
 
NameEloZappa
Mexico
II
64-bit
4CPU
Zappa
Mexico
64-bit
4CPU
Zap!Chess
Zanzibar
64-bit
4CPU
Zappa
Mexico
II
64-bit
Zap!Chess
Paderborn
64-bit
4CPU
Zappa
Mexico
64-bit
Zappa
Mexico
32-bit
Zap!Chess
Zanzibar
32-bit
Zappa
1.1
64-bit
Zappa
1.1
32-bit
List 5.122592        52%
16.5/32
37%
11/30
Ruffian 1.0.52586        59%
19/32
45%
13.5/30
Delfi 5.02577        41%
13/32
35%
10.5/30
Pseudo 0.7c2576        66%
21/32
48%
14.5/30
Petir 4.9999992556      77%
24.5/32
 58%
18.5/32
 
Anaconda 2.0.12546        64%
20.5/32
47%
14/30
LittleThought 1.052 64-bit2452   100%
1/1
    72%
21.5/30
 
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
  (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 October 12, 2019