CCRL 40/4
Downloads and Statistics
December 7, 2019
Testing summary:
Total: 2'143'600 games
played by 2'509 programs
29100 CPU days (X2 4600+)

White wins: 830'432 (38.7%)
Black wins: 670'629 (31.3%)
Draws: 642'539 (30.0%)
White score: 53.7%

Custom engine selection

Comparing 15 engines!
15 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 December 7, 2019 with Bayeselo based on 2'143'600 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+
1RubiChess 1.6 64-bit 4CPU3280+26−2664.5%−95.243.7%478 
100.0%
 RubiChess 1.5 64-bit 4CPU3193+25−2552.5%−16.442.8%479
68.6%
 RubiChess 1.6 64-bit3185+17−1748.4%+10.546.8%1034
99.9%
 RubiChess 1.4 64-bit 4CPU3134+25−2547.9%+13.151.3%480
68.9%
 RubiChess 1.5 64-bit3126+17−1750.9%−5.844.2%1164
94.2%
 RubiChess 1.3 64-bit 4CPU3104+23−2358.7%−63.740.8%635
100.0%
 RubiChess 1.4 64-bit3050+18−1850.1%−0.643.5%931
100.0%
 RubiChess 1.3 64-bit2970+19−1952.1%−16.234.2%1019
100.0%
 RubiChess 1.1 64-bit2779+14−1455.0%−40.634.6%1686
100.0%
 RubiChess 1.0 64-bit2651+17−1747.4%+19.429.8%1171
100.0%
 RubiChess 0.9 64-bit2504+19−1952.2%−13.332.1%946
100.0%
 RubiChess 0.8 64-bit2456+16−1649.0%+8.626.5%1496
100.0%
 RubiChess 0.7 64-bit2310+24−2356.2%−43.524.2%653
100.0%
 RubiChess 0.6 64-bit2159+19−1962.1%−95.619.9%1113
100.0%
 RubiChess 0.5 64-bit1928+25−2551.5%−10.020.5%586
 

Results matrix

Custom engine selection
#NameElo123456789101112131415
1RubiChess 1.6 64-bit 4CPU3280               
2RubiChess 1.5 64-bit 4CPU3193               
3RubiChess 1.6 64-bit3185               
4RubiChess 1.4 64-bit 4CPU3134               
5RubiChess 1.5 64-bit3126               
6RubiChess 1.3 64-bit 4CPU3104               
7RubiChess 1.4 64-bit3050               
8RubiChess 1.3 64-bit2970               
9RubiChess 1.1 64-bit2779               
10RubiChess 1.0 64-bit2651               
11RubiChess 0.9 64-bit2504               
12RubiChess 0.8 64-bit2456               
13RubiChess 0.7 64-bit2310               
14RubiChess 0.6 64-bit2159               
15RubiChess 0.5 64-bit1928               
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
#NameElo123456789101112131415
1RubiChess 1.6 64-bit 4CPU3280 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2RubiChess 1.5 64-bit 4CPU31930.0 68.699.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3RubiChess 1.6 64-bit31850.031.4 99.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
4RubiChess 1.4 64-bit 4CPU31340.00.10.1 68.996.1100.0100.0100.0100.0100.0100.0100.0100.0100.0
5RubiChess 1.5 64-bit31260.00.00.031.1 94.2100.0100.0100.0100.0100.0100.0100.0100.0100.0
6RubiChess 1.3 64-bit 4CPU31040.00.00.03.95.7 100.0100.0100.0100.0100.0100.0100.0100.0100.0
7RubiChess 1.4 64-bit30500.00.00.00.00.00.0 100.0100.0100.0100.0100.0100.0100.0100.0
8RubiChess 1.3 64-bit29700.00.00.00.00.00.00.0 100.0100.0100.0100.0100.0100.0100.0
9RubiChess 1.1 64-bit27790.00.00.00.00.00.00.00.0 100.0100.0100.0100.0100.0100.0
10RubiChess 1.0 64-bit26510.00.00.00.00.00.00.00.00.0 100.0100.0100.0100.0100.0
11RubiChess 0.9 64-bit25040.00.00.00.00.00.00.00.00.00.0 100.0100.0100.0100.0
12RubiChess 0.8 64-bit24560.00.00.00.00.00.00.00.00.00.00.0 100.0100.0100.0
13RubiChess 0.7 64-bit23100.00.00.00.00.00.00.00.00.00.00.00.0 100.0100.0
14RubiChess 0.6 64-bit21590.00.00.00.00.00.00.00.00.00.00.00.00.0 100.0
15RubiChess 0.5 64-bit19280.00.00.00.00.00.00.00.00.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo123456789101112131415
1RubiChess 1.6 64-bit 4CPU3280 89705500000000000
2RubiChess 1.5 64-bit 4CPU3193897 011300000000000
3RubiChess 1.6 64-bit318500 0129305113900003000
4RubiChess 1.4 64-bit 4CPU3134551130 6633366600000000
5RubiChess 1.5 64-bit312600129366 19012605843303000
6RubiChess 1.3 64-bit 4CPU3104000333190 274920000000
7RubiChess 1.4 64-bit305000511661260274 6410003000
8RubiChess 1.3 64-bit2970003906058492641 447037000
9RubiChess 1.1 64-bit27790000300447 1482123006
10RubiChess 1.0 64-bit2651000030001482 383324000
11RubiChess 0.9 64-bit25040000000312383 1044000
12RubiChess 0.8 64-bit24560030303733241044 67790
13RubiChess 0.7 64-bit23100000000000067 1620
14RubiChess 0.6 64-bit21590000000000079162 400
15RubiChess 0.5 64-bit19280000000060000400 
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
#NameElo123456789101112131415
1RubiChess 1.6 64-bit 4CPU3280 93.70.05.70.00.00.00.00.00.00.00.00.00.00.0
2RubiChess 1.5 64-bit 4CPU319393.7 0.011.80.00.00.00.00.00.00.00.00.00.00.0
3RubiChess 1.6 64-bit31850.00.0 0.058.80.026.019.00.00.00.00.10.00.00.0
4RubiChess 1.4 64-bit 4CPU31345.711.80.0 4.029.94.74.00.00.00.00.00.00.00.0
5RubiChess 1.5 64-bit31260.00.058.84.0 10.660.126.80.10.10.00.10.00.00.0
6RubiChess 1.3 64-bit 4CPU31040.00.00.029.910.6 17.55.60.00.00.00.00.00.00.0
7RubiChess 1.4 64-bit30500.00.026.04.760.117.5 32.90.00.00.00.10.00.00.0
8RubiChess 1.3 64-bit29700.00.019.04.026.85.632.9 16.50.00.20.30.00.00.0
9RubiChess 1.1 64-bit27790.00.00.00.00.10.00.016.5 51.90.50.10.00.00.3
10RubiChess 1.0 64-bit26510.00.00.00.00.10.00.00.051.9 18.112.10.00.00.0
11RubiChess 0.9 64-bit25040.00.00.00.00.00.00.00.20.518.1 42.80.00.00.0
12RubiChess 0.8 64-bit24560.00.00.10.00.10.00.10.30.112.142.8 3.13.00.0
13RubiChess 0.7 64-bit23100.00.00.00.00.00.00.00.00.00.00.03.1 9.20.0
14RubiChess 0.6 64-bit21590.00.00.00.00.00.00.00.00.00.00.03.09.2 23.5
15RubiChess 0.5 64-bit19280.00.00.00.00.00.00.00.00.30.00.00.00.023.5 
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 120 common opponents

Custom engine selection
NameEloRubiChess
1.6
64-bit
4CPU
RubiChess
1.5
64-bit
4CPU
RubiChess
1.6
64-bit
RubiChess
1.4
64-bit
4CPU
RubiChess
1.5
64-bit
RubiChess
1.3
64-bit
4CPU
RubiChess
1.4
64-bit
RubiChess
1.3
64-bit
RubiChess
1.1
64-bit
RubiChess
1.0
64-bit
RubiChess
0.9
64-bit
RubiChess
0.8
64-bit
RubiChess
0.7
64-bit
RubiChess
0.6
64-bit
RubiChess
0.5
64-bit
Fire 7.1 64-bit3338  27%
8.5/31
 50%
0.5/1
          
Xiphos 0.5 64-bit3305  26%
8/31
 50%
0.5/1
          
Laser 1.6 64-bit 4CPU327650%
15/30
43%
13/30
             
Laser 1.7 64-bit3271  36%
11.5/32
 28%
9/32
          
Shredder 13 64-bit3270  38%
12/32
 17%
5.5/32
          
Andscacs 0.88 64-bit 4CPU326147%
14/30
35%
10.5/30
             
Booot 6.2 64-bit 4CPU325850%
15/30
37%
11/30
             
Booot 6.3.1 64-bit3256  44%
14/32
 27%
8.5/32
          
Fizbo 2 64-bit3248  39%
12.5/32
 27%
8.5/32
          
Chiron 4 64-bit 4CPU324153%
16/30
43%
13/30
             
Andscacs 0.95 64-bit3234  47%
15/32
 35%
11.5/33
          
Hannibal 1.7 64-bit 4CPU322967%
20/30
67%
20/30
             
NirvanaChess 2.4 64-bit 4CPU322557%
16/28
38%
11/29
             
Equinox 3.20 64-bit 4CPU322355%
16.5/30
45%
13.5/30
             
Pedone 1.9 64-bit 4CPU320160%
18/30
45%
13.5/30
 44%
11/25
           
Schooner 2.1 64-bit3200  44%
14/32
 44%
14.5/33
          
Senpai 2.0 64-bit 4CPU3175   46%
12/26
 38%
22.5/60
         
Nemorino 5.00 64-bit 4CPU3173   38%
10/26
 44%
26.5/60
         
Chiron 4 64-bit3164  60%
18.5/31
 34%
11/32
  0%
0/1
       
Critter 1.6a 64-bit3158  59%
19/32
 48%
15.5/32
          
NameEloRubiChess
1.6
64-bit
4CPU
RubiChess
1.5
64-bit
4CPU
RubiChess
1.6
64-bit
RubiChess
1.4
64-bit
4CPU
RubiChess
1.5
64-bit
RubiChess
1.3
64-bit
4CPU
RubiChess
1.4
64-bit
RubiChess
1.3
64-bit
RubiChess
1.1
64-bit
RubiChess
1.0
64-bit
RubiChess
0.9
64-bit
RubiChess
0.8
64-bit
RubiChess
0.7
64-bit
RubiChess
0.6
64-bit
RubiChess
0.5
64-bit
Critter 1.01 64-bit 4CPU315768%
20.5/30
50%
15/30
             
Sting SF 9 64-bit 4CPU315572%
21.5/30
53%
16/30
             
Stockfish 1.9.1 64-bit 4CPU315380%
24/30
50%
15/30
             
Arasan 21.4 64-bit3147  55%
17.5/32
 50%
0.5/1
          
Pedone 1.9 64-bit3134  56%
18/32
 47%
14.5/31
 38%
12/32
        
Arasan 21.3 64-bit3132    48%
15/31
 34%
11/32
        
NirvanaChess 2.4 64-bit3130  58%
18.5/32
 41%
13/32
 38%
12/32
23%
7.5/32
       
Protector 1.9.0 64-bit 4CPU3129   54%
15/28
 50%
30/60
         
Vajolet2 2.7 64-bit3128  47%
15/32
 48%
15/31
 44%
14/32
        
Wasp 3.75 64-bit3122  60%
18.5/31
 39%
12.5/32
          
Nemorino 5.00 64-bit3116  59%
19/32
 64%
20.5/32
 37%
11.5/31
33%
11/33
       
Rodent III 0.276 64-bit 4CPU311473%
22/30
58%
17.5/30
             
Texel 1.07 64-bit3113  61%
19.5/32
 58%
18.5/32
 34%
11/32
20%
6.5/32
       
iCE 4.0 64-bit3112  76%
22/29
 61%
19.5/32
          
Hannibal 1.7 64-bit3110  61%
19.5/32
 50%
16/32
 41%
13/32
23%
7.5/33
       
Rybka 4.1 64-bit3108    45%
14/31
 42%
13.5/32
44%
14/32
       
Demolito 2018-10-29 64-bit 4CPU3104 67%
20/30
 52%
14.5/28
           
Arasan 20.0 64-bit 4CPU309478%
23.5/30
58%
17.5/30
             
Demolito 2019-05-05 64-bit3092    48%
15.5/32
 39%
12.5/32
        
chess22k 1.13 64-bit3086  67%
21.5/32
 67%
21.5/32
          
NameEloRubiChess
1.6
64-bit
4CPU
RubiChess
1.5
64-bit
4CPU
RubiChess
1.6
64-bit
RubiChess
1.4
64-bit
4CPU
RubiChess
1.5
64-bit
RubiChess
1.3
64-bit
4CPU
RubiChess
1.4
64-bit
RubiChess
1.3
64-bit
RubiChess
1.1
64-bit
RubiChess
1.0
64-bit
RubiChess
0.9
64-bit
RubiChess
0.8
64-bit
RubiChess
0.7
64-bit
RubiChess
0.6
64-bit
RubiChess
0.5
64-bit
Protector 1.9.0 64-bit3085  66%
21/32
 58%
19/33
 44%
14/32
28%
9/32
   0%
0/1
   
Senpai 2.0 64-bit3084  61%
19.5/32
 67%
21.5/32
 42%
13.5/32
32%
10.5/33
       
Demolito 2019-10-08 64-bit3081  70%
22.5/32
 70%
28/40
          
chess22k 1.12 64-bit3081    55%
17.5/32
 47%
15/32
42%
13/31
       
iCE 3.0 64-bit3081   61%
17/28
62%
20/32
59%
35.5/60
48%
15.5/32
38%
12/32
       
Wasp 3.60 64-bit3079    66%
21/32
 32%
10/31
        
Rybka 3 Human 64-bit 4CPU307678%
23.5/30
68%
20.5/30
             
Naum 4 64-bit 4CPU306187%
26/30
82%
24.5/30
             
Defenchess 1.1f 64-bit3047    52%
16/31
 55%
17/31
        
SmarThink 1.98 64-bit3039   75%
1.5/2
47%
8.5/18
 64%
20.5/32
        
Spike 1.4 Leiden 4CPU3039   50%
0.5/1
 54%
32.5/60
         
Naum 4.6 64-bit3032    73%
23.5/32
 44%
14/32
        
Spark 1.0 64-bit 4CPU3028   50%
1/2
 86%
6/7
         
Hakkapeliitta TCEC v2 64-bit3020    100%
1/1
57%
33.5/59
41%
13/32
        
Rodent III 0.287 64-bit3005    75%
24/32
 61%
19.5/32
        
Deuterium 2019.1.36.50 64-bit2999    62%
20/32
59%
35.5/60
58%
18/31
        
Hiarcs 142987    61%
19.5/32
 66%
20.5/31
        
Pirarucu 2.9.5 64-bit2985      62%
20/32
42%
13.5/32
       
Spark 1.0 64-bit2927       100%
1/1
   0%
0/1
   
Scorpio 2.8 64-bit2902       100%
1/1
27%
6.5/24
      
NameEloRubiChess
1.6
64-bit
4CPU
RubiChess
1.5
64-bit
4CPU
RubiChess
1.6
64-bit
RubiChess
1.4
64-bit
4CPU
RubiChess
1.5
64-bit
RubiChess
1.3
64-bit
4CPU
RubiChess
1.4
64-bit
RubiChess
1.3
64-bit
RubiChess
1.1
64-bit
RubiChess
1.0
64-bit
RubiChess
0.9
64-bit
RubiChess
0.8
64-bit
RubiChess
0.7
64-bit
RubiChess
0.6
64-bit
RubiChess
0.5
64-bit
Gaviota 1.0 64-bit2873       66%
21/32
  0%
0/1
    
DisasterArea 1.65 64-bit2866    50%
0.5/1
  69%
22/32
       
Zappa Mexico II 64-bit2845       53%
17/32
58%
18.5/32
      
Onno 1.2.70 64-bit2844       70%
22.5/32
33%
10.5/32
      
Marvin 3.2.0 64-bit2828       70%
22.5/32
41%
13/32
      
Tornado 8.0 64-bit2827       64%
20.5/32
55%
17.5/32
      
Monolith 1.0 64-bit2822       77%
24.5/32
48%
14/29
      
Rhetoric 1.4.3 64-bit2805       61%
19.5/32
52%
16/31
      
Ktulu 92781    100%
1/1
94%
7.5/8
         
Octochess r5190 64-bit2779       84%
27/32
59%
19/32
      
Bright 0.5c2771        52%
16.5/32
45%
14.5/32
     
Twisted Logic 20090922 64-bit2770        64%
20.5/32
38%
12/32
     
Pawny 1.2 64-bit2768        52%
16.5/32
27%
8.5/32
     
Jonny 4.002763    100%
1/1
   58%
18.5/32
30%
18/60
     
Gogobello 1.4 64-bit2755        60%
33/55
27%
8.5/32
     
Chronos 1.9.9 64-bit2740        64%
20.5/32
30%
8.5/28
     
Shield 2.1 64-bit2740        54%
30/56
35%
21/60
     
Cheese 1.9 64-bit2731        49%
27.5/56
33%
20/60
 0%
0/1
   
Chess Tiger 2007.12713        55%
17.5/32
30%
9.5/32
0%
0/1
    
GreKo 2018.08 64-bit2712        57%
32/56
36%
11.5/32
     
NameEloRubiChess
1.6
64-bit
4CPU
RubiChess
1.5
64-bit
4CPU
RubiChess
1.6
64-bit
RubiChess
1.4
64-bit
4CPU
RubiChess
1.5
64-bit
RubiChess
1.3
64-bit
4CPU
RubiChess
1.4
64-bit
RubiChess
1.3
64-bit
RubiChess
1.1
64-bit
RubiChess
1.0
64-bit
RubiChess
0.9
64-bit
RubiChess
0.8
64-bit
RubiChess
0.7
64-bit
RubiChess
0.6
64-bit
RubiChess
0.5
64-bit
Devel 2.00002711        62%
34.5/56
46%
27.5/60
     
Counter 2.9 64-bit2702        61%
34/56
44%
13.5/31
     
Arminius 2017-01-01 64-bit2688        50%
16/32
41%
13/32
     
Delfi 5.42683        58%
18.5/32
47%
15/32
     
RedQueen 1.1.98 64-bit2670        69%
22/32
58%
34.5/60
     
Alaric 7072663        78%
25/32
48%
13.5/28
     
Gandalf 7 64-bit2663        78%
25/32
47%
15/32
     
ECE X3 64-bit2655        64%
20.5/32
36%
10/28
     
Nebula 2.0 64-bit2654        72%
23/32
48%
13.5/28
     
Amyan 1.722604       100%
1/1
   0%
0/1
   
Maverick 1.5 64-bit2569         64%
20.5/32
 100%
1/1
   
Brutus 8.05 64-bit2557         80%
25.5/32
45%
14.5/32
    
Anaconda 2.0.12546         61%
19.5/32
 22%
6.5/30
   
Ufim 8.022540         67%
21.5/32
42%
12.5/30
38%
12/32
   
AnMon 5.752539         62%
20/32
42%
13/31
36%
11.5/32
   
Fridolin 2.00 64-bit2538         77%
24.5/32
44%
13.5/31
38%
12/32
   
Leela Chess 0.10 w323 64-bit2537          69%
22/32
58%
18/31
   
Hermann 2.8 64-bit2531         69%
22/32
45%
14.5/32
36%
11.5/32
   
Orion 0.5 64-bit2514         67%
21.5/32
52%
16.5/32
    
Coiled 0.4 64-bit2508          50%
16/32
38%
34.5/92
   
NameEloRubiChess
1.6
64-bit
4CPU
RubiChess
1.5
64-bit
4CPU
RubiChess
1.6
64-bit
RubiChess
1.4
64-bit
4CPU
RubiChess
1.5
64-bit
RubiChess
1.3
64-bit
4CPU
RubiChess
1.4
64-bit
RubiChess
1.3
64-bit
RubiChess
1.1
64-bit
RubiChess
1.0
64-bit
RubiChess
0.9
64-bit
RubiChess
0.8
64-bit
RubiChess
0.7
64-bit
RubiChess
0.6
64-bit
RubiChess
0.5
64-bit
Little Goliath Evolution 3.122505          61%
19.5/32
41%
26.5/64
   
Yace 0.99.872504          55%
17.5/32
52%
33.5/64
   
Bagatur 1.5e 64-bit2485          59%
19/32
34%
11/32
   
BBChess 1.3b 64-bit2480          61%
19/31
52%
16.5/32
   
Topple 0.2.1 64-bit2472        83%
2.5/3
 66%
21/32
    
Cerebro 3.03d2471          52%
16.5/32
58%
18.5/32
   
LittleThought 1.052 64-bit2452          55%
45.5/82
52%
16.5/32
   
Matacz 1.42446          57%
28.5/50
52%
14.5/28
   
SpiderChess 0706032439          48%
23/48
50%
14/28
   
KnightDreamer 3.32393           0%
0/1
46%
16/35
  
Barbarossa 0.4.0 64-bit2319           71%
20.5/29
61%
21.5/35
21%
10.5/50
 
Drosophila 1.4 64-bit2240            51%
18/35
50%
1/2
 
Joker2 0.7.7 64-bit2223            63%
22/35
25%
0.5/2
 
Baislicka 1.0 64-bit2177            63%
22/35
42%
12.5/30
 
Eia 0.31961             74%
37/50
47%
14/30
Zevra 1.6.1 r512 64-bit1954             78%
39/50
50%
15/30
Heracles 0.6.161922             81%
40.5/50
52%
15.5/30
Eagle 0.7.51912        100%
2/2
     41%
12/29
Clueless 1.41905             90%
45/50
53%
16/30
Roce 0.03901853             87%
43.5/50
57%
17/30
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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Created in 2005-2013 by CCRL team
Last games added on December 7, 2019