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 4 engines!
4 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+
1Octochess r5506 64-bit2824+14−1448.9%+5.432.1%1711 
100.0%
 Octochess r5190 64-bit2779+9−947.5%+16.633.8%4698
100.0%
 Octochess r5132 64-bit2735+17−1754.2%−28.833.7%1209
96.1%
 Octochess r4984 64-bit2714+17−1852.7%−19.434.1%1108
 

Results matrix

Custom engine selection
#NameElo1234
1Octochess r5506 64-bit2824    
2Octochess r5190 64-bit2779    
3Octochess r5132 64-bit2735    
4Octochess r4984 64-bit2714    
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
#NameElo1234
1Octochess r5506 64-bit2824 100.0100.0100.0
2Octochess r5190 64-bit27790.0 100.0100.0
3Octochess r5132 64-bit27350.00.0 96.1
4Octochess r4984 64-bit27140.00.03.9 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo1234
1Octochess r5506 64-bit2824 8769396
2Octochess r5190 64-bit2779876 1255717
3Octochess r5132 64-bit2735931255 1175
4Octochess r4984 64-bit2714967171175 
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
#NameElo1234
1Octochess r5506 64-bit2824 13.73.23.4
2Octochess r5190 64-bit277913.7 21.212.3
3Octochess r5132 64-bit27353.221.2 50.7
4Octochess r4984 64-bit27143.412.350.7 
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 62 common opponents

Custom engine selection
NameEloOctochess
r5506
64-bit
Octochess
r5190
64-bit
Octochess
r5132
64-bit
Octochess
r4984
64-bit
RubiChess 1.3 64-bit297050%
0.5/1
16%
5/32
  
Bobcat 8.0 64-bit29580%
0/2
20%
6.5/32
  
Crafty 25.2 64-bit293325%
1/4
22%
11/50
  
Spike 1.4 Leiden29210%
0/1
8%
0.5/6
  
Quazar 0.4 64-bit290150%
0.5/1
35%
9/26
  
Murka 3 64-bit288243%
13/30
30%
9.5/32
  
Atlas 3.80 64-bit287530%
8.5/28
42%
13/31
  
Gaviota 1.0 64-bit2873100%
1/1
39%
15/38
  
Tucano 7.00 64-bit287247%
14.5/31
34%
11/32
  
Nemo 1.0.1 64-bit285752%
15.5/30
17%
1/6
  
Zurichess Luzern 64-bit284447%
14/30
38%
11.5/30
  
Texel 1.02 64-bit2840 45%
4.5/10
 39%
12.5/32
Godel 4.4.5 64-bit283939%
27.5/70
47%
7.5/16
  
Tornado 8.0 64-bit282775%
3/4
47%
15/32
  
The Baron 3.41 64-bit282048%
14.5/30
40%
12.5/31
  
Scorpio 2.7.6 64-bit281645%
13/29
47%
15.5/33
  
Rhetoric 1.4.3 64-bit280543%
13/30
44%
14/32
  
ChessBrainVB 3.20280450%
0.5/1
53%
17/32
  
Godel 4.0.7 64-bit2804100%
1/1
45%
14.5/32
  
Gaviota 0.86 64-bit2799 45%
21/47
30%
9.5/32
35%
3.5/10
NameEloOctochess
r5506
64-bit
Octochess
r5190
64-bit
Octochess
r5132
64-bit
Octochess
r4984
64-bit
RuyDos 1.1.6 64-bit279854%
21.5/40
55%
17.5/32
  
Crafty 23.5 64-bit2794  38%
12/32
30%
3/10
RofChade 1.0 64-bit279352%
39/75
50%
16/32
  
Ktulu 9278165%
20/31
52%
16/31
39%
12.5/32
48%
15.5/32
Bright 0.5c277150%
1.5/3
56%
18/32
47%
15/32
 
Frenzee 3.5.19 64-bit2770100%
2/2
45%
24.5/54
31%
10/32
58%
18.5/32
Twisted Logic 20090922 64-bit2770 50%
16/32
39%
12.5/32
45%
14.5/32
Cheese 2.0 64-bit276950%
0.5/1
58%
18.5/32
  
Pawny 1.2 64-bit276874%
17/23
52%
16.5/32
  
Jonny 4.002763100%
1/1
54%
25/46
52%
16/31
41%
13/32
NirvanaChess 1.3 64-bit2762 60%
6/10
48%
15.5/32
 
Dirty 20Apr2013 64-bit2761 54%
21/39
45%
14.5/32
 
BugChess2 1.9 64-bit2759 47%
24/51
34%
10.5/31
 
Amoeba 2.1 64-bit2748100%
1/1
60%
36/60
  
SmarThink 1.20 64-bit2747  50%
16/32
42%
13.5/32
Chronos 1.9.9 64-bit274083%
2.5/3
55%
17.5/32
48%
15.5/32
50%
16/32
Shield 2.1 64-bit274050%
0.5/1
62%
20/32
  
Cheese 1.9 64-bit273150%
0.5/1
64%
20.5/32
  
Arasan 16.2 64-bit2727 66%
21/32
45%
14.5/32
 
EXchess 7.03b 64-bit2725  59%
19/32
50%
4.5/9
NameEloOctochess
r5506
64-bit
Octochess
r5190
64-bit
Octochess
r5132
64-bit
Octochess
r4984
64-bit
Deuterium 13.1.31.113 64-bit2721 40%
4/10
55%
17.5/32
 
iCE 1.0 64-bit2721 45%
9/20
58%
18.5/32
 
Chess Tiger 2007.12713 58%
18.5/32
 58%
18/31
Bobcat 3.25 64-bit2712 56%
17.5/31
48%
15.5/32
48%
20/42
Cheng4 0.35a 64-bit2711 56%
18/32
65%
20/31
 
Devel 2.00002711100%
1/1
48%
15.5/32
  
Arasan 15.1 64-bit2693  61%
19.5/32
50%
16/32
Rodent 1.0 64-bit2693  53%
17/32
54%
22/41
Cheese 1.8 64-bit268950%
0.5/1
72%
23/32
  
RedQueen 1.1.4 64-bit2689 59%
27/46
53%
17/32
 
Delfi 5.42683 61%
19.5/32
69%
22/32
59%
19/32
Vajolet 2.482667 65%
30/46
52%
16/31
 
Alaric 7072663 73%
23.5/32
60%
18.5/31
66%
21/32
Cheng3 1.07 64-bit2661  59%
19/32
57%
24/42
Nebula 2.0 64-bit2654  62%
20/32
55%
5.5/10
Colossus 2008b2642100%
1/1
 68%
21/31
59%
19/32
E.T. Chess 13.01.082634  70%
22.5/32
62%
20/32
Gandalf 62627  61%
19.5/32
53%
17/32
WildCat 8262350%
1/2
  62%
20/32
Godel 2.3.7 64-bit2618 100%
7/7
66%
21/32
46%
18.5/40
NameEloOctochess
r5506
64-bit
Octochess
r5190
64-bit
Octochess
r5132
64-bit
Octochess
r4984
64-bit
Slow Chess Blitz WV2.12615100%
1/1
  61%
19.5/32
Rotor 0.82612100%
1/1
79%
5.5/7
 60%
6/10
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
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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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Match length (Minimum number of games to highlight with color):

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Reference rating list:
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Created in 2005-2013 by CCRL team
Last games added on December 7, 2019