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 5 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+
1Gaviota 1.0 64-bit 4CPU2973+15−1546.1%+24.936.5%1550 
100.0%
 Gaviota 1.0 64-bit2873+8−849.1%+6.331.8%5856
100.0%
 Gaviota 0.86 64-bit2799+10−1049.5%+3.528.6%3619
100.0%
 Gaviota 0.85.1 64-bit2728+12−1255.0%−34.625.3%2821
100.0%
 Gaviota 0.84 64-bit2687+12−1253.2%−23.125.2%2639
60.2%
 Gaviota 0.85.1 32-bit2684+19−1938.5%+80.826.9%998
84.9%
 Gaviota 0.83 64-bit 4CPU2670+19−1962.2%−90.824.9%1019
100.0%
 Gaviota 0.83 64-bit2596+17−1753.8%−28.226.3%1235
100.0%
 Gaviota 0.80 64-bit2533+14−1453.9%−27.126.3%1873
100.0%
 Gaviota 0.75.7 64-bit2433+16−1646.0%+30.622.0%1404
 

Results matrix

Custom engine selection
#NameElo12345678910
1Gaviota 1.0 64-bit 4CPU2973          
2Gaviota 1.0 64-bit2873          
3Gaviota 0.86 64-bit2799          
4Gaviota 0.85.1 64-bit2728          
5Gaviota 0.84 64-bit2687       4 − 1
+3−0=2
+100
  
6Gaviota 0.85.1 32-bit2684          
7Gaviota 0.83 64-bit 4CPU2670          
8Gaviota 0.83 64-bit2596    1 − 4
+0−3=2
−100
     
9Gaviota 0.80 64-bit2533          
10Gaviota 0.75.7 64-bit2433          
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
1Gaviota 1.0 64-bit 4CPU2973 100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Gaviota 1.0 64-bit28730.0 100.0100.0100.0100.0100.0100.0100.0100.0
3Gaviota 0.86 64-bit27990.00.0 100.0100.0100.0100.0100.0100.0100.0
4Gaviota 0.85.1 64-bit27280.00.00.0 100.0100.0100.0100.0100.0100.0
5Gaviota 0.84 64-bit26870.00.00.00.0 60.293.3100.0100.0100.0
6Gaviota 0.85.1 32-bit26840.00.00.00.039.8 84.9100.0100.0100.0
7Gaviota 0.83 64-bit 4CPU26700.00.00.00.06.715.1 100.0100.0100.0
8Gaviota 0.83 64-bit25960.00.00.00.00.00.00.0 100.0100.0
9Gaviota 0.80 64-bit25330.00.00.00.00.00.00.00.0 100.0
10Gaviota 0.75.7 64-bit24330.00.00.00.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo12345678910
1Gaviota 1.0 64-bit 4CPU2973 345393300064000
2Gaviota 1.0 64-bit2873345 215287171062839392115
3Gaviota 0.86 64-bit27993932152 19921346119316317800
4Gaviota 0.85.1 64-bit2728308711992 357086112101383929372
5Gaviota 0.84 64-bit2687071013463570 864144020071189570
6Gaviota 0.85.1 32-bit268406281193861864 0000
7Gaviota 0.83 64-bit 4CPU26706439163121014400 199015471050
8Gaviota 0.83 64-bit25960391781383200701990 16411054
9Gaviota 0.80 64-bit253302109291189015471641 1914
10Gaviota 0.75.7 64-bit243301503725700105010541914 
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
1Gaviota 1.0 64-bit 4CPU2973 4.77.60.70.00.02.50.00.00.0
2Gaviota 1.0 64-bit28734.7 22.710.08.49.20.60.50.30.2
3Gaviota 0.86 64-bit27997.622.7 30.921.525.83.53.70.00.0
4Gaviota 0.85.1 64-bit27280.710.030.9 65.422.531.534.119.88.8
5Gaviota 0.84 64-bit26870.08.421.565.4 23.839.451.826.414.1
6Gaviota 0.85.1 32-bit26840.09.225.822.523.8 0.00.00.00.0
7Gaviota 0.83 64-bit 4CPU26702.50.63.531.539.40.0 88.353.543.3
8Gaviota 0.83 64-bit25960.00.53.734.151.80.088.3 52.839.9
9Gaviota 0.80 64-bit25330.00.30.019.826.40.053.552.8 58.4
10Gaviota 0.75.7 64-bit24330.00.20.08.814.10.043.339.958.4 
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 142 common opponents

Custom engine selection
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Hannibal 1.4b 64-bit3019 36%
11.5/32
30%
6/20
       
Naum 4.2 64-bit2988 27%
8.5/32
21%
8.5/40
14%
4.5/32
      
Protector 1.5.0 64-bit2984 34%
11/32
23%
11.5/50
       
Texel 1.03 64-bit2939 33%
10.5/32
21%
2.5/12
       
Spark 1.0 64-bit2927 51%
19.5/38
24%
22/90
28%
9/32
17%
5.5/32
     
Booot 5.2.0 64-bit2922 40%
12/30
20%
2/10
       
Spike 1.4 Leiden2922 43%
17.5/41
36%
35/97
14%
4.5/32
27%
8.5/32
     
DiscoCheck 5.2 64-bit291560%
30/50
43%
19/44
21%
1.5/7
       
Quazar 0.4 64-bit290161%
30/49
49%
19/39
35%
34/97
35%
3.5/10
      
Deep Junior Yokohama 64-bit2898 50%
16/32
28%
9/32
       
Hannibal 1.1 64-bit2895   23%
7.5/32
11%
3.5/32
     
Protector 1.4.0 64-bit2890  30%
15/50
30%
9.5/32
22%
7/32
     
Thinker 5.4d Inert 64-bit288653%
26.5/50
45%
17/38
33%
18/54
       
Thinker 5.4c Inert 64-bit2883   27%
8.5/32
25%
8/32
     
Murka 3 64-bit288268%
34/50
60%
15/25
35%
25.5/72
       
Toga II 3.02875 25%
1.5/6
32%
16/50
       
MinkoChess 1.3 64-bit2870 55%
21/38
44%
14/32
       
Tornado 8.0 64-bit 4CPU286870%
22.5/32
     33%
10.5/32
   
Nemo 1.0.1 64-bit2857 54%
22/41
46%
47.5/103
24%
7.5/31
25%
8/32
     
SmarThink 1.50 64-bit2844 52%
16.5/32
52%
16.5/32
       
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Zappa Mexico II 64-bit2844 64%
25/39
 30%
9.5/32
      
MinkoChess 1.2 64-bit2842  39%
12.5/32
32%
20.5/64
      
Booot 5.1.02839  41%
34/82
34%
11/32
44%
14/32
     
Crafty 23.8 64-bit2825 55%
16/29
46%
18/39
       
Toga II 1.4.1SE2824   42%
13.5/32
20%
6.5/32
     
Cheng4 0.36c 64-bit2820 63%
24/38
44%
28/64
       
Deuterium 14.1.32.119 64-bit2819 59%
19/32
56%
38/68
       
Scorpio 2.7.6 64-bit2816 50%
6/12
49%
35/72
       
Tornado 4.88 64-bit2810 75%
4.5/6
60%
6/10
       
Scorpio 2.7.5 64-bit2804  52%
31/60
30%
3/10
      
Texel 1.01 64-bit2797  48%
39.5/82
29%
11/38
      
Loop 13.6 (Loop 2007) 64-bit2796   26%
8/31
41%
11.5/28
     
Crafty 23.4 64-bit2782  59%
19/32
31%
10/32
47%
15/32
31%
30.5/99
    
Ktulu 92782 62%
20.5/33
34%
11/32
39%
12.5/32
59%
19/32
     
Bright 0.4a2780 75%
4.5/6
48%
19/40
  36%
36/100
    
GNU Chess 5.50 64-bit2780 17%
1/6
56%
22.5/40
       
Octochess r5190 64-bit2778 61%
23/38
55%
26/47
       
Scorpio 2.7 64-bit2775   39%
12/31
39%
12.5/32
40%
39.5/99
    
Bright 0.5c2772 63%
21.5/34
 38%
12/32
39%
12.5/32
     
Twisted Logic 20090922 64-bit2770 69%
22/32
52%
16.5/32
42%
13.5/32
28%
9/32
34%
34.5/100
    
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Frenzee 3.5.19 64-bit2769 56%
22/39
60%
43/72
31%
10/32
48%
15.5/32
34%
34.5/100
    
Jonny 4.002763 67%
113/168
59%
42.5/72
34%
11/32
39%
12.5/32
44%
44.5/100
    
Bison 9.11 64-bit2762 0%
0/1
55%
22/40
41%
13/32
44%
14/32
38%
38/100
    
BugChess2 1.9 64-bit2759 69%
27.5/40
49%
19.5/40
45%
14.5/32
36%
11.5/32
40%
39.5/100
    
SmarThink 1.20 64-bit2748  63%
19.5/31
55%
17.5/32
28%
9/32
44%
44/100
    
Chronos 1.9.9 64-bit2740 50%
1/2
58%
60.5/104
52%
16.5/32
44%
14/32
43%
43/100
    
Dirty 05Sep2012 64-bit2740  58%
24.5/42
62%
12.5/20
      
Bobcat 3.25 64-bit2713  58%
33/57
58%
18.5/32
      
Chess Tiger 2007.12713   58%
18.5/32
59%
19/32
     
Naum 2.0 32-bit2700   55%
17.5/32
47%
15/32
     
Fruit 2.12685  75%
30/40
48%
9.5/20
      
Delfi 5.42683 83%
2.5/3
70%
34.5/49
69%
22/32
47%
15/32
 56%
18/32
39%
12.5/32
  
Deuterium 12.01.30.1070 64-bit2683  60%
6/10
60%
6/10
      
Bobcat 2.75 64-bit2676    56%
24/43
  50%
13.5/27
  
RedQueen 1.0.0 64-bit2675   56%
18/32
67%
8/12
  8%
0.5/6
  
Daydreamer 1.75 64-bit2673  76%
38/50
56%
18/32
36%
11.5/32
 45%
14.5/32
47%
15/32
  
Dirty 25Aug2011 64-bit2668   72%
23/32
42%
5/12
  10%
0.5/5
  
Alaric 7072663 100%
2/2
 67%
21.5/32
50%
16/32
 56%
18/32
42%
13.5/32
40%
12/30
 
Cheng3 1.07 64-bit2661  45%
4.5/10
65%
35/54
      
Naraku 1.312653   53%
17/32
72%
23/32
   20%
6/30
 
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Colossus 2008b2642 75%
1.5/2
 58%
18.5/32
52%
16.5/32
 55%
17.5/32
42%
13.5/32
  
Cyrano 0.6b17 64-bit2642   56%
17.5/31
58%
17.5/30
 68%
21/31
36%
11.5/32
32%
9.5/30
 
Deuterium 11.01.28.1592637   66%
21/32
48%
21/44
  40%
2/5
  
E.T. Chess 13.01.082634 100%
2/2
 69%
22/32
61%
19.5/32
     
ProDeo 1.72630   59%
19/32
62%
18.5/30
     
Gandalf 62627 100%
1/1
 69%
22/32
58%
18.5/32
     
Alfil 8.1.1 Optimized2626   58%
18.5/32
52%
16.5/32
 64%
20.5/32
45%
14.5/32
32%
9.5/30
 
Movei 00.8.438 (10 10 10)2623 100%
1/1
 67%
21.5/32
55%
17.5/32
     
WildCat 82623 0%
0/1
 69%
21.5/31
53%
17/32
 56%
17.5/31
42%
13.5/32
  
Philou 3.7.1 64-bit2620  85%
8.5/10
70%
23/33
      
Godel 2.3.7 64-bit2618  100%
6/6
62%
20/32
      
Sloppy 0.2.2 64-bit2617   75%
24/32
66%
21/32
 69%
21.5/31
28%
9/32
48%
14.5/30
 
Slow Chess Blitz WV2.12615 100%
1/1
 73%
23.5/32
53%
17/32
 41%
13/32
52%
15.5/30
  
Rotor 0.82612 75%
1.5/2
75%
7.5/10
       
Ruffian 2.1.02608   73%
23.5/32
58%
18.5/32
     
GarboChess 2.20 64-bit2607   78%
25/32
59%
19/32
     
Amyan 1.722604   74%
23/31
64%
28/44
 59%
19/32
51%
19/37
42%
12.5/30
 
Pharaon 3.5.12604 100%
2/2
 75%
24/32
53%
17/32
 44%
14/32
59%
19/32
38%
11.5/30
 
Zappa 1.1 64-bit2604    50%
16/32
 53%
17/32
45%
13.5/30
40%
12/30
29%
8.5/29
Cheng3 1.05 64-bit2602    71%
8.5/12
  60%
3/5
  
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
GNU Chess 5.07.1705b (TCEC) 64-bit2597    67%
29.5/44
  60%
3/5
  
GNU Chess 5.07.173b 64-bit2597  85%
8.5/10
66%
21/32
65%
28.5/44
  30%
1.5/5
  
N2 0.4 64-bit2590   73%
23.5/32
61%
27/44
 66%
21/32
47%
17.5/37
42%
12.5/30
32%
9.5/30
Ruffian 1.0.52586   72%
23/32
66%
21/32
 67%
21.5/32
39%
12.5/32
50%
15/30
25%
7.5/30
CuckooChess 1.12 64-bit2583   78%
25/32
75%
9/12
     
Cheng3 1.04 64-bit2581    67%
8/12
  20%
1/5
  
Francesca MAD 0.192581 100%
1/1
  62%
7.5/12
     
Hamsters 0.7.12579   78%
25/32
72%
23/32
 61%
19.5/32
62%
20/32
35%
10.5/30
 
Pseudo 0.7c2576   78%
25/32
67%
21.5/32
 55%
17.5/32
64%
20.5/32
50%
15/30
20%
6/30
Arasan 13.1 64-bit2575    75%
9/12
  70%
3.5/5
  
SOS 5.12574 100%
1/1
 66%
21/32
83%
26.5/32
 67%
21.5/32
53%
17/32
 12%
3.5/30
Rotor 0.62573   66%
21/32
59%
26/44
 64%
20.5/32
62%
23.5/38
48%
15.5/32
 
Francesca MAD 0.182570    62%
7.5/12
  70%
3.5/5
  
Aristarch 4.502567    72%
23/32
 55%
17.5/32
42%
13.5/32
43%
13/30
38%
11.5/30
Petir 4.392566   88%
28/32
60%
26.5/44
  90%
4.5/5
  
Deuterium 09.01.26.4922561        45%
13.5/30
35%
10.5/30
Brutus 8.05 64-bit2557   65%
20/31
52%
16.5/32
  52%
16.5/32
58%
17.5/30
 
Glass 1.7 64-bit2556    79%
9.5/12
  70%
3.5/5
  
The Baron 2.23 64-bit2555   75%
24/32
76%
25/33
 67%
21.5/32
58%
18.5/32
45%
13.5/30
40%
12/30
Philou 3.602551    75%
9/12
  70%
3.5/5
  
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Hermann 2.6 64-bit2540   80%
25.5/32
66%
29/44
  60%
3/5
  
AnMon 5.752539   77%
24.5/32
69%
22/32
 62%
20/32
56%
18/32
50%
15/30
25%
7.5/30
CuckooChess 1.11 64-bit2539    83%
10/12
  60%
3/5
  
SmarThink 0.17a2537    73%
23.5/32
 59%
19/32
59%
19/32
43%
13/30
35%
10.5/30
DanaSah 4.662531    67%
8/12
  20%
1/5
  
Hermann 2.8 64-bit2531    71%
8.5/12
  60%
3/5
  
GreKo 8.2 64-bit2526    62%
7.5/12
  60%
3/5
  
Dirty 6J-222513        64%
18.5/29
45%
13/29
Hermann 2.5 64-bit2513      69%
22/32
52%
16.5/32
55%
16.5/30
47%
14/30
Rodin 4.02512    75%
9/12
  70%
3.5/5
  
Pupsi2 0.082507    54%
6.5/12
  70%
3.5/5
47%
15/32
 
Green Light Chess 3.01.2.22505      83%
26.5/32
81%
26/32
45%
13/29
34%
10/29
Little Goliath Evolution 3.122505      61%
19/31
60%
18.5/31
30%
9/30
32%
9.5/30
Yace 0.99.872504      65%
20/31
70%
22.5/32
67%
20/30
40%
12/30
Trace 1.37a2500      73%
23.5/32
59%
19/32
57%
17/30
27%
8/30
nanoSzachy 3.92495    58%
7/12
  70%
3.5/5
  
Bruja 1.9.1 64-bit2491      66%
21/32
47%
15/32
55%
16.5/30
37%
11/30
Kiwi 0.6d 64-bit2470 100%
1/1
    86%
27.5/32
62%
20/32
70%
21/30
62%
18.5/30
Xpdnt 0910072469      81%
26/32
66%
21/32
62%
18.5/30
 
Dorky 4.3 64-bit2467    62%
7.5/12
  90%
4.5/5
  
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Pawny 0.3 64-bit2463    96%
11.5/12
  50%
2.5/5
  
Delphil 2.82451    75%
9/12
  80%
4/5
  
Counter 1.22447        55%
16.5/30
52%
15.5/30
SpiderChess 0706032439 100%
1/1
      73%
22/30
50%
15/30
Abrok 5.02436      84%
27/32
83%
26.5/32
67%
20/30
42%
12.5/30
Atlas 3.14b 64-bit2436    79%
9.5/12
  40%
2/5
  
King of Kings 2.562434        62%
18.5/30
58%
17.5/30
Eeyore 1.52 64-bit2427    75%
9/12
  70%
3.5/5
  
Gaia 3.5 64-bit2425        60%
18/30
40%
12/30
Quark 2.352423        52%
15.5/30
58%
17.5/30
Hussar 0.42420    67%
8/12
  80%
4/5
  
Snitch 1.6.2 32-bit2419        72%
21.5/30
50%
15/30
Dragon 4.62418        70%
21/30
70%
21/30
OliThink 5.3.0 64-bit2417        63%
19/30
58%
17.5/30
Typhoon 1.00-3582414    96%
11.5/12
  80%
4/5
  
RomiChess P3k 64-bit2409        67%
20/30
52%
15.5/30
KnightDreamer 3.32393 100%
1/1
       63%
19/30
Leila 0.53h2388        68%
20.5/30
47%
14/30
Amy 0.87b2386        70%
21/30
60%
17.5/29
Diablo 0.5.12385        52%
15.5/30
65%
19.5/30
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Gosu 0.162383        73%
22/30
60%
18/30
Sage 3.532325 100%
1/1
      87%
26/30
58%
17.5/30
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
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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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Created in 2005-2013 by CCRL team
Last games added on October 12, 2019