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 13 engines!
13 selected engines played 10 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+
 Cheese 2.1 64-bit 4CPU2942+89−9239.5%+65.036.8%38 
84.4%
1Cheese 2.0 64-bit 4CPU2890+24−2447.0%+19.737.2%559
100.0%
 Cheese 2.1 64-bit2804+21−2148.4%+11.432.4%769
99.5%
 Cheese 2.0 64-bit2769+15−1550.2%−2.334.1%1424
100.0%
 Cheese 1.9 64-bit2731+12−1252.5%−15.830.5%2485
100.0%
 Cheese 1.8 64-bit2689+16−1649.0%+9.529.8%1391
99.8%
 Cheese 1.7 64-bit2655+16−1654.7%−31.733.2%1308
100.0%
 Cheese 1.6.1 64-bit2548+18−1852.2%−16.333.3%1050
100.0%
 Cheese 1.5 64-bit2495+18−1846.4%+23.228.5%1050
94.1%
 Cheese 1.4 64-bit2476+14−1449.2%+5.926.8%1789
100.0%
 Cheese 1.32343+13−1348.1%+12.423.5%2397
90.7%
 Cheese 1.22331+14−1444.4%+40.423.0%1933
98.8%
 Cheese 1.1b2297+26−2652.3%−29.920.4%594
 

Results matrix

Custom engine selection
#NameElo12345678910111213
1Cheese 2.1 64-bit 4CPU2942             
2Cheese 2.0 64-bit 4CPU2890             
3Cheese 2.1 64-bit2804             
4Cheese 2.0 64-bit2769             
5Cheese 1.9 64-bit2731             
6Cheese 1.8 64-bit2689             
7Cheese 1.7 64-bit2655             
8Cheese 1.6.1 64-bit2548             
9Cheese 1.5 64-bit2495         6.5 − 3.5
+4−1=5
+74
   
10Cheese 1.4 64-bit2476        3.5 − 6.5
+1−4=5
−74
    
11Cheese 1.32343             
12Cheese 1.22331             
13Cheese 1.1b2297             
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
#NameElo12345678910111213
1Cheese 2.1 64-bit 4CPU2942 84.499.6100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Cheese 2.0 64-bit 4CPU289015.6 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Cheese 2.1 64-bit28040.40.0 99.5100.0100.0100.0100.0100.0100.0100.0100.0100.0
4Cheese 2.0 64-bit27690.00.00.4 100.0100.0100.0100.0100.0100.0100.0100.0100.0
5Cheese 1.9 64-bit27310.00.00.00.0 100.0100.0100.0100.0100.0100.0100.0100.0
6Cheese 1.8 64-bit26890.00.00.00.00.0 99.8100.0100.0100.0100.0100.0100.0
7Cheese 1.7 64-bit26550.00.00.00.00.00.2 100.0100.0100.0100.0100.0100.0
8Cheese 1.6.1 64-bit25480.00.00.00.00.00.00.0 100.0100.0100.0100.0100.0
9Cheese 1.5 64-bit24950.00.00.00.00.00.00.00.0 94.1100.0100.0100.0
10Cheese 1.4 64-bit24760.00.00.00.00.00.00.00.05.9 100.0100.0100.0
11Cheese 1.323430.00.00.00.00.00.00.00.00.00.0 90.799.9
12Cheese 1.223310.00.00.00.00.00.00.00.00.00.09.3 98.8
13Cheese 1.1b22970.00.00.00.00.00.00.00.00.00.00.11.2 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo12345678910111213
1Cheese 2.1 64-bit 4CPU2942 000000000000
2Cheese 2.0 64-bit 4CPU28900 09900000000
3Cheese 2.1 64-bit280400 4452934090000000
4Cheese 2.0 64-bit276909445 13196793000000
5Cheese 1.9 64-bit2731092931319 1818617931518159
6Cheese 1.8 64-bit2689004096791818 826000000
7Cheese 1.7 64-bit26550003617826 73140419164640
8Cheese 1.6.1 64-bit2548000090731 10788893193760
9Cheese 1.5 64-bit24950000304041078 12763054660
10Cheese 1.4 64-bit247600001501918891276 908883124
11Cheese 1.32343000018064319305908 2498676
12Cheese 1.223310000150643764668832498 851
13Cheese 1.1b2297000090000124676851 
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
#NameElo12345678910111213
1Cheese 2.1 64-bit 4CPU2942 0.00.00.00.00.00.00.00.00.00.00.00.0
2Cheese 2.0 64-bit 4CPU28900.0 0.00.50.30.00.00.00.00.00.00.00.0
3Cheese 2.1 64-bit28040.00.0 20.39.018.90.00.00.00.00.00.00.0
4Cheese 2.0 64-bit27690.00.520.3 33.724.10.10.00.00.00.00.00.0
5Cheese 1.9 64-bit27310.00.39.033.7 46.916.30.30.10.40.40.30.3
6Cheese 1.8 64-bit26890.00.018.924.146.9 30.60.00.00.00.00.00.0
7Cheese 1.7 64-bit26550.00.00.00.116.330.6 31.017.16.21.72.00.0
8Cheese 1.6.1 64-bit25480.00.00.00.00.30.031.0 51.331.39.312.60.0
9Cheese 1.5 64-bit24950.00.00.00.00.10.017.151.3 44.98.815.60.0
10Cheese 1.4 64-bit24760.00.00.00.00.40.06.231.344.9 21.723.75.2
11Cheese 1.323430.00.00.00.00.40.01.79.38.821.7 57.722.6
12Cheese 1.223310.00.00.00.00.30.02.012.615.623.757.7 33.7
13Cheese 1.1b22970.00.00.00.00.30.00.00.00.05.222.633.7 
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 138 common opponents

Custom engine selection
NameEloCheese
2.1
64-bit
4CPU
Cheese
2.0
64-bit
4CPU
Cheese
2.1
64-bit
Cheese
2.0
64-bit
Cheese
1.9
64-bit
Cheese
1.8
64-bit
Cheese
1.7
64-bit
Cheese
1.6.1
64-bit
Cheese
1.5
64-bit
Cheese
1.4
64-bit
Cheese
1.3
Cheese
1.2
Cheese
1.1b
iCE 3.0 64-bit3081   100%
1/1
 0%
0/1
       
Cheng 4.39 64-bit2945   100%
1/1
 0%
0/1
       
Crafty 25.2 64-bit2933   0%
0/1
75%
1.5/2
        
Spark 1.0 64-bit2927    0%
0/1
0%
0/1
       
Atlas 3.91 64-bit2925 47%
15.5/33
 100%
1/1
         
Deep Sjeng c't 20102925    50%
0.5/1
50%
0.5/1
       
DiscoCheck 5.2.1 64-bit2914 33%
11/33
  0%
0/1
        
Scorpio 2.8 64-bit2902   0%
0/1
0%
0/1
        
Quazar 0.4 64-bit2901 45%
15/33
 50%
0.5/1
0%
0/1
        
Zurichess Neuchatel 64-bit2900 45%
14.5/32
 0%
0/1
0%
0/1
        
Counter 3.3 64-bit2879  33%
10.5/32
50%
0.5/1
         
Octochess r5506 64-bit2824   50%
0.5/1
50%
0.5/1
50%
0.5/1
       
Monolith 1.0 64-bit2822   36%
11.5/32
33%
10.5/32
        
Rhetoric 1.4.3 64-bit2805  44%
14/32
45%
13.5/30
50%
1/2
        
Minic 0.82 64-bit2795  41%
11.5/28
53%
16/30
         
RofChade 1.0 64-bit2793   44%
14/32
50%
16/32
        
Ktulu 92781   0%
0/1
50%
0.5/1
50%
0.5/1
       
Octochess r5190 64-bit2779   42%
13.5/32
36%
11.5/32
28%
9/32
       
RubiChess 1.1 64-bit2779   47%
14/30
51%
28.5/56
        
The Baron 3.29 64-bit2773    52%
16.5/32
44%
14/32
30%
9.5/32
      
NameEloCheese
2.1
64-bit
4CPU
Cheese
2.0
64-bit
4CPU
Cheese
2.1
64-bit
Cheese
2.0
64-bit
Cheese
1.9
64-bit
Cheese
1.8
64-bit
Cheese
1.7
64-bit
Cheese
1.6.1
64-bit
Cheese
1.5
64-bit
Cheese
1.4
64-bit
Cheese
1.3
Cheese
1.2
Cheese
1.1b
Bright 0.5c2771  65%
20/31
53%
17/32
44%
14/32
41%
13/32
       
Frenzee 3.5.19 64-bit2770  48%
15.5/32
52%
16.5/32
 28%
9/32
       
Twisted Logic 20090922 64-bit2770  52%
16/31
 39%
12.5/32
45%
14.5/32
       
Pawny 1.2 64-bit2768  56%
18/32
47%
15/32
42%
14/33
37%
22.5/61
       
Twisted Logic 20100131x 64-bit2767   45%
13.5/30
 100%
1/1
       
Jonny 4.002763  64%
20.5/32
55%
17.5/32
42%
64.5/154
40%
12/30
       
BugChess2 1.9 64-bit2759  56%
18/32
59%
19/32
 38%
12/32
       
Arminius 2018-12-23 64-bit2753  56%
17.5/31
50%
0.5/1
         
Tucano 6.00 64-bit2750    33%
17/51
50%
16.5/33
47%
14/30
      
Godel 3.4.9 64-bit2741    47%
23.5/50
47%
8.5/18
       
Chronos 1.9.9 64-bit2740   52%
16.5/32
53%
27/51
42%
13.5/32
       
Shield 2.1 64-bit2740   55%
16.5/30
50%
31/62
        
Laser 1.0 64-bit2727     47%
15/32
41%
13/32
      
Carballo 1.7 64-bit2718    54%
44.5/83
44%
14/32
       
Chess Tiger 2007.12713   65%
20/31
48%
24/50
        
GreKo 2018.08 64-bit2712   56%
18.5/33
62%
20.5/33
        
Devel 2.00002711   58%
18/31
53%
17/32
        
Donna 4.1 64-bit2698   67%
21.5/32
65%
20/31
        
Arminius 2017-01-01 64-bit2688    45%
37/82
52%
15/29
       
Delfi 5.42683   58%
17.5/30
67%
21.5/32
52%
16.5/32
       
NameEloCheese
2.1
64-bit
4CPU
Cheese
2.0
64-bit
4CPU
Cheese
2.1
64-bit
Cheese
2.0
64-bit
Cheese
1.9
64-bit
Cheese
1.8
64-bit
Cheese
1.7
64-bit
Cheese
1.6.1
64-bit
Cheese
1.5
64-bit
Cheese
1.4
64-bit
Cheese
1.3
Cheese
1.2
Cheese
1.1b
Djinn 1.021 64-bit2676    59%
50/85
53%
17/32
       
Pawny 1.1 64-bit2674     67%
21.5/32
41%
13/32
      
Daydreamer 1.75 64-bit2673    67%
21.5/32
52%
16.5/32
       
RedQueen 1.1.98 64-bit2670   62%
18.5/30
53%
17/32
42%
14/33
       
Alaric 7072663   61%
19.5/32
58%
19/33
50%
16.5/33
       
Gandalf 7 64-bit2663   73%
23.5/32
57%
47/83
        
Nebula 2.0 64-bit2654    55%
17.5/32
59%
19/32
30%
9.5/32
      
Phalanx XXV2653    59%
19/32
66%
41/62
       
Donna 4.0 64-bit2650    67%
22/33
55%
17.5/32
47%
15/32
      
Colossus 2008b2642    67%
22/33
47%
14/30
59%
19/32
      
Cyrano 0.6b17 64-bit2641    73%
24/33
58%
18.5/32
       
ChessBrainVB 2.052640     61%
16.5/27
61%
19/31
      
Sjakk 2.2 64-bit2638    67%
22/33
45%
15/33
47%
15/32
      
Rodin 8.02636    67%
21.5/32
70%
22.5/32
48%
15.5/32
      
E.T. Chess 13.01.082634    61%
19.5/32
47%
15.5/33
50%
16/32
      
WyldChess 1.51 64-bit2630   58%
17.5/30
56%
18.5/33
        
Movei 00.8.438 (10 10 10)2623     62%
20/32
62%
20/32
      
WildCat 82623   0%
0/1
64%
20.5/32
62%
20.5/33
48%
15.5/32
      
Philou 3.7.1 64-bit2620      52%
16.5/32
24%
7.5/31
     
Sloppy 0.2.2 64-bit2617    100%
1/1
 61%
19.5/32
      
NameEloCheese
2.1
64-bit
4CPU
Cheese
2.0
64-bit
4CPU
Cheese
2.1
64-bit
Cheese
2.0
64-bit
Cheese
1.9
64-bit
Cheese
1.8
64-bit
Cheese
1.7
64-bit
Cheese
1.6.1
64-bit
Cheese
1.5
64-bit
Cheese
1.4
64-bit
Cheese
1.3
Cheese
1.2
Cheese
1.1b
Slow Chess Blitz WV2.12615    0%
0/1
 69%
22/32
      
Rotor 0.82612    100%
1/1
 59%
19/32
      
Glass 2.0 64-bit2610      64%
20.5/32
36%
11.5/32
22%
7/32
    
Jellyfish 1.1 64-bit2610    0%
0/1
 64%
20.5/32
      
Amyan 1.722604    100%
1/1
 58%
18.5/32
34%
11/32
     
Pharaon 3.5.12603      64%
20.5/32
45%
14.5/32
     
GarboChess 2.10 64-bit2598      70%
22.5/32
41%
13/32
     
Francesca MAD 0.192581      52%
16.5/32
 43%
18/42
44%
14/32
   
Hamsters 0.7.12578    100%
1/1
 56%
18/32
44%
14/32
39%
12.5/32
    
Atlas 3.25 64-bit2570        23%
7.5/32
50%
5/10
   
Rodin 6.02570       61%
19.5/32
41%
13/32
    
Capivara LK 0.09b02c 64-bit2565      55%
17/31
54%
34.5/64
     
Brutus 8.05 64-bit2557    0%
0/1
 67%
21.5/32
58%
18/31
     
Petir 4.9999992555      58%
18.5/32
31%
10/32
41%
13/32
34%
10.5/31
   
The Baron 2.23 64-bit2555      59%
19/32
41%
13/32
32%
13.5/42
53%
17/32
17%
5.5/32
23%
7.5/32
 
Anaconda 2.0.12546        47%
15/32
33%
10.5/32
   
Rebel Century2545      64%
20.5/32
39%
12.5/32
39%
12.5/32
    
nanoSzachy 4.0 64-bit2543       62%
20/32
48%
20/42
48%
9.5/20
   
Ufim 8.022540       61%
19.5/32
34%
11/32
42%
13.5/32
17%
5.5/32
20%
6.5/32
 
AnMon 5.752539       62%
18.5/30
51%
21/41
42%
13.5/32
 20%
6.5/32
 
NameEloCheese
2.1
64-bit
4CPU
Cheese
2.0
64-bit
4CPU
Cheese
2.1
64-bit
Cheese
2.0
64-bit
Cheese
1.9
64-bit
Cheese
1.8
64-bit
Cheese
1.7
64-bit
Cheese
1.6.1
64-bit
Cheese
1.5
64-bit
Cheese
1.4
64-bit
Cheese
1.3
Cheese
1.2
Cheese
1.1b
DanaSah 4.882533       41%
13/32
44%
14/32
36%
11.5/32
   
Hermann 2.8 64-bit2531       59%
19/32
48%
15.5/32
47%
15/32
   
Pepito 1.59.2 64-bit2521       55%
16.5/30
34%
10.5/31
56%
18/32
   
Green Light Chess 3.01.2.22505       50%
16/32
52%
22/42
53%
17/32
   
Little Goliath Evolution 3.122505       66%
21/32
55%
17.5/32
44%
14/32
37%
11.5/31
33%
10.5/32
 
Yace 0.99.872504       61%
19.5/32
55%
23/42
55%
17.5/32
   
Trace 1.37a2500       45%
14.5/32
54%
22.5/42
41%
13/32
17%
5.5/32
28%
9/32
 
Tao 5.62486        55%
5.5/10
  38%
12/32
 
Murka 2 64-bit2482        46%
19.5/42
42%
17.5/42
   
Mephisto Gideon Professional2474        42%
13/31
51%
21.5/42
   
Cerebro 3.03d2471       58%
18.5/32
 52%
16.5/32
42%
13.5/32
46%
12/26
 
Kiwi 0.6d 64-bit2470          28%
9/32
30%
9.5/32
 
Xpdnt 0910072469          25%
7.5/30
34%
11/32
 
Dorky 4.3 64-bit2466       70%
22.5/32
 45%
19/42
   
Glass 1.62457          34%
11/32
38%
12/32
 
pikoSzachy 4.02456        60%
6/10
50%
20.5/41
   
Sjakk 2.0 64-bit2455        60%
6/10
55%
17.5/32
   
Delphil 2.82450         48%
15.5/32
 33%
10.5/32
 
Matacz 1.42446         42%
13/31
44%
14/32
36%
11.5/32
 
SpiderChess 0706032439         52%
13.5/26
28%
9/32
31%
10/32
 
NameEloCheese
2.1
64-bit
4CPU
Cheese
2.0
64-bit
4CPU
Cheese
2.1
64-bit
Cheese
2.0
64-bit
Cheese
1.9
64-bit
Cheese
1.8
64-bit
Cheese
1.7
64-bit
Cheese
1.6.1
64-bit
Cheese
1.5
64-bit
Cheese
1.4
64-bit
Cheese
1.3
Cheese
1.2
Cheese
1.1b
Atlas 3.14b 64-bit2436         58%
18.5/32
39%
12.5/32
  
Abrok 5.02435        75%
7.5/10
 39%
12.5/32
48%
15.5/32
 
LambChop 10.992434    50%
0.5/1
    59%
19/32
27%
8.5/32
44%
14/32
 
Gaia 3.5 64-bit2425        50%
5/10
59%
19/32
   
Nejmet 3.072425    100%
1/1
    53%
17/32
56%
18/32
23%
7.5/32
25%
8/32
Quark 2.352423        80%
8/10
56%
18/32
 28%
9/32
 
Hussar 0.42420    100%
1/1
    54%
28/52
30%
9.5/32
  
Snitch 1.6.2 32-bit2419        39%
3.5/9
  53%
17/32
 
Dragon 4.62418    75%
1.5/2
    55%
17.5/32
38%
12/32
38%
12/32
27%
7.5/28
Delphil 1.9c2414          44%
14/32
30%
9.5/32
 
RomiChess P3k 64-bit2409         69%
22/32
38%
12/32
39%
12.5/32
 
Simplex 0.9.8 64-bit2409         52%
16.5/32
41%
13/32
  
Matacz 1.12400           47%
15/32
42%
13.5/32
Gaia 3.5 32-bit2394          41%
13/32
47%
15/32
29%
18.5/64
Comet B502388          44%
28/64
30%
9.5/32
 
Gosu 0.162382          35%
15.5/44
44%
14/32
38%
12/32
Comet B682377          46%
29.5/64
47%
14/30
 
Der Bringer 1.92374          59%
19/32
44%
14/32
28%
9/32
Djinn 0.925x2373          41%
13/32
48%
15.5/32
38%
12/32
Muse 0.899b2372          24%
7.5/31
53%
17/32
39%
12.5/32
NameEloCheese
2.1
64-bit
4CPU
Cheese
2.0
64-bit
4CPU
Cheese
2.1
64-bit
Cheese
2.0
64-bit
Cheese
1.9
64-bit
Cheese
1.8
64-bit
Cheese
1.7
64-bit
Cheese
1.6.1
64-bit
Cheese
1.5
64-bit
Cheese
1.4
64-bit
Cheese
1.3
Cheese
1.2
Cheese
1.1b
The Crazy Bishop 00522364          54%
6.5/12
50%
16/32
 
Homer 2.012357          48%
14.5/30
48%
11.5/24
 
Amateur 2.822351          42%
5/12
50%
16/32
 
Eeyore 1.502343          44%
14/32
45%
14.5/32
 
Queen 4.032337          48%
15.5/32
34%
11/32
 
Arion 1.72333          50%
16/32
52%
16.5/32
 
Sage 3.532325          45%
14.5/32
53%
17/32
 
Sungorus 1.4 64-bit2314          50%
16/32
56%
18/32
 
Asterisk 0.62307           64%
20.5/32
56%
14/25
Joker 1.1.142306    100%
1/1
     61%
19.5/32
55%
17.5/32
 
KnightX 1.922297          62%
27.5/44
44%
14/32
 
Ares 1.003a2285          69%
21.5/31
58%
18.5/32
 
Popochin 3.22275          47%
15/32
56%
18/32
59%
19/32
Zeus 1.292262          55%
17.5/32
48%
15.5/32
 
Natwarlal 0.142261          57%
17/30
70%
22.5/32
66%
21/32
Anechka 0.082235          58%
18.5/32
69%
22/32
55%
17/31
Latista (Sinobyl) 1.52195           81%
25/31
64%
20.5/32
BlackBishop 1.02156          77%
24/31
66%
21/32
 
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