CCRL 40/40
Downloads and Statistics
December 7, 2019
Testing summary:
Total: 1'104'002 games
played by 2'573 programs
150928 CPU days (X2 4600+)

White wins: 382'601 (34.7%)
Black wins: 284'129 (25.7%)
Draws: 437'272 (39.6%)
White score: 54.5%

Custom engine selection

Comparing 7 engines!
7 selected engines played 0 games with each other

CCRL 40/40 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 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern CPU.
Computed on December 7, 2019 with Bayeselo based on 1'104'002 games

Color legend: Commercial, Free, Open source, Private.
Bold font - tested with 200 games or more. Normal font - less than 200 games.

RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
Elo+
1Chronos 1.9.9 32-bit2740+17−1650.3%−0.543.2%1182 
56.9%
 Chronos 1.9.9 64-bit2738+13−1350.6%−5.737.7%2135
99.7%
 Chronos 1.9.8 64-bit2691+31−3148.9%+7.939.3%318
99.6%
 Chronos 1.9.72640+20−2051.4%−9.446.0%768
100.0%
 Chronos 1.9.62583+26−2651.5%−10.738.0%461
91.5%
 Chronos 1.9.52554+32−3250.0%−2.338.1%310
100.0%
 Chronos 1.9.42473+33−3351.5%−10.336.3%300
 

Results matrix

Custom engine selection
#NameElo1234567
1Chronos 1.9.9 32-bit2740       
2Chronos 1.9.9 64-bit2738       
3Chronos 1.9.8 64-bit2691       
4Chronos 1.9.72640       
5Chronos 1.9.62583       
6Chronos 1.9.52554       
7Chronos 1.9.42473       
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
#NameElo1234567
1Chronos 1.9.9 32-bit2740 56.999.6100.0100.0100.0100.0
2Chronos 1.9.9 64-bit273843.1 99.7100.0100.0100.0100.0
3Chronos 1.9.8 64-bit26910.40.3 99.6100.0100.0100.0
4Chronos 1.9.726400.00.00.4 100.0100.0100.0
5Chronos 1.9.625830.00.00.00.0 91.5100.0
6Chronos 1.9.525540.00.00.00.08.5 100.0
7Chronos 1.9.424730.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo1234567
1Chronos 1.9.9 32-bit2740 3649944578926
2Chronos 1.9.9 64-bit2738364 309154060
3Chronos 1.9.8 64-bit269199309 2430186
4Chronos 1.9.72640445154243 32531821
5Chronos 1.9.625837800325 28858
6Chronos 1.9.5255492618318288 104
7Chronos 1.9.424736062158104 
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
#NameElo1234567
1Chronos 1.9.9 32-bit2740 11.06.622.84.76.20.4
2Chronos 1.9.9 64-bit273811.0 12.65.30.00.20.0
3Chronos 1.9.8 64-bit26916.612.6 22.40.02.91.0
4Chronos 1.9.7264022.85.322.4 26.429.52.0
5Chronos 1.9.625834.70.00.026.4 37.47.6
6Chronos 1.9.525546.20.22.929.537.4 17.0
7Chronos 1.9.424730.40.01.02.07.617.0 
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 89 common opponents

Custom engine selection
NameEloChronos
1.9.9
32-bit
Chronos
1.9.9
64-bit
Chronos
1.9.8
64-bit
Chronos
1.9.7
Chronos
1.9.6
Chronos
1.9.5
Chronos
1.9.4
Booot 5.1.0284429%
4/14
25%
1/4
     
Deep Junior 11.1a 32-bit283138%
1.5/4
  50%
1/2
   
Booot 5.0282525%
1/4
50%
12/24
     
Hannibal 1.0a 32-bit280139%
7/18
 38%
1.5/4
    
Glaurung 2.2 64-bit2783 100%
2/2
75%
3/4
    
Octochess r5506 64-bit278345%
4.5/10
25%
0.5/2
     
Jonny 4.00277936%
15.5/43
41%
11.5/28
     
Bright 0.5c277838%
1.5/4
29%
7.5/26
     
Bright 0.4a2776 62%
2.5/4
 25%
0.5/2
   
Naraku 1.4277666%
14.5/22
22%
4/18
     
Twisted Logic 20100131x 64-bit2768 59%
17/29
46%
11/24
    
Thinker 5.3b Passive 64-bit2765 50%
2/4
12%
0.5/4
    
SmarThink 1.20 64-bit2764 46%
12/26
19%
4.5/24
    
GNU Chess 5.50 64-bit2757 44%
3.5/8
12%
0.5/4
    
Dirty 05Sep2012 64-bit2754 50%
5/10
50%
2/4
    
Ktulu 9275443%
11.5/27
54%
6.5/12
 21%
1.5/7
   
SmarThink 1.20 32-bit274731%
5.5/18
  50%
2/4
   
Spike 1.2 Turin274560%
6/10
58%
14/24
35%
8.5/24
25%
1/4
   
Twisted Logic 20100131x 32-bit273950%
3/6
  25%
1/4
   
Arasan 15.6 64-bit2729 50%
1/2
75%
3/4
    
NameEloChronos
1.9.9
32-bit
Chronos
1.9.9
64-bit
Chronos
1.9.8
64-bit
Chronos
1.9.7
Chronos
1.9.6
Chronos
1.9.5
Chronos
1.9.4
Bison 9.11 32-bit272855%
32.5/59
  56%
9/16
   
EXchess 7.03b 64-bit2718 100%
2/2
100%
2/2
    
SmarThink 1.10 32-bit2718   50%
2/4
25%
5/20
  
Ktulu 82705   25%
0.5/2
 25%
1/4
 
Chess Tiger 2007.1270450%
4/8
50%
5/10
 50%
1/2
   
Chessmaster 11 Aiglos II270188%
3.5/4
50%
4/8
     
Chessmaster 11 Conqueror269750%
3/6
75%
3/4
     
Chessmaster 11 Archangel269575%
4.5/6
  50%
3/6
 50%
1/2
 
Crafty 23.2 32-bit269550%
4/8
  64%
4.5/7
   
Frenzee Feb08 32-bit269567%
4/6
  25%
0.5/2
   
Booot 4.15.02693  44%
10.5/24
46%
5.5/12
   
Delfi 5.4268933%
2/6
52%
14.5/28
65%
15.5/24
46%
6/13
   
Cheese 1.8 64-bit2683 0%
0/2
44%
3.5/8
    
Chessmaster 11 Toxic268250%
1/2
  50%
0.5/1
 50%
1/2
 
Chessmaster 11 Leonidas267942%
2.5/6
  25%
1/4
   
Daydreamer 1.75 32-bit266866%
35.5/54
  56%
4.5/8
   
Deuterium 10.01.27.213266881%
6.5/8
60%
14.5/24
     
Movei 00.8.438 (10 10 10)266790%
4.5/5
77%
21.5/28
56%
13.5/24
42%
16/38
 25%
0.5/2
 
Chessmaster 11266550%
2/4
  0%
0/2
 50%
3/6
 
Alaric 707266167%
4/6
100%
2/2
 49%
17.5/36
   
NameEloChronos
1.9.9
32-bit
Chronos
1.9.9
64-bit
Chronos
1.9.8
64-bit
Chronos
1.9.7
Chronos
1.9.6
Chronos
1.9.5
Chronos
1.9.4
CM10th Xperience2661   75%
1.5/2
 25%
0.5/2
 
BugChess2 1.6.4 64-bit2660  67%
15.5/23
46%
11/24
   
Bobcat 2.75 32-bit265970%
7/10
100%
2/2
     
BugChess2 1.6.4 32-bit265762%
2.5/4
  34%
6.5/19
   
E.T. Chess 13.01.08265025%
0.5/2
  53%
10/19
 38%
1.5/4
 
Cyrano 0.6b17 32-bit264862%
2.5/4
  50%
9.5/19
   
CM10th Ogre264562%
2.5/4
  75%
3/4
   
Colossus 2008b264356%
4.5/8
 62%
15/24
54%
13.5/25
 38%
1.5/4
50%
1/2
Slow Chess Blitz WV2.12637   33%
2/6
48%
15.5/32
  
Crafty 23.0 32-bit2630   38%
4.5/12
 56%
4.5/8
 
WildCat 82629   57%
12/21
 25%
2/8
 
Ruffian 2.1.02623    39%
12.5/32
0%
0/2
 
BugChess2 1.6.3 32-bit2620   56%
5/9
 67%
4/6
 
Bison 9.62619   58%
21.5/37
38%
1.5/4
  
Deuterium 11.01.28.159261967%
8/12
67%
16/24
     
Hamsters 0.7.1261856%
4.5/8
  52%
11/21
50%
1/2
35%
3.5/10
 
ProDeo 1.62617    75%
1.5/2
25%
2/8
 
Alfil 8.1.12601   48%
10.5/22
51%
21.5/42
46%
6.5/14
 
Deuterium 09.01.26.492259975%
6/8
  41%
4.5/11
   
Sloppy 0.2.2 32-bit259960%
14.5/24
  50%
10.5/21
46%
24/52
44%
3.5/8
 
NameEloChronos
1.9.9
32-bit
Chronos
1.9.9
64-bit
Chronos
1.9.8
64-bit
Chronos
1.9.7
Chronos
1.9.6
Chronos
1.9.5
Chronos
1.9.4
The Baron 2.23 32-bit2594   60%
14.5/24
51%
26.5/52
30%
3/10
 
Pseudo 0.7c259175%
3/4
    25%
0.5/2
 
Amyan 1.72259062%
10/16
  42%
2.5/6
   
Petir 4.9999992579   62%
2.5/4
 58%
3.5/6
 
Jonny 2.83 32-bit2576    51%
25.5/50
25%
0.5/2
 
Crafty 22.10 32-bit2572   60%
6/10
 62%
2.5/4
 
N2 0.4 32-bit256875%
3/4
  50%
3.5/7
   
Brutus 8.05 32-bit256762%
2.5/4
  62%
10.5/17
   
SOS 5.12563    51%
17.5/34
75%
1.5/2
 
AnMon 5.75253869%
5.5/8
  62%
2.5/4
   
AnMon 5.662530   50%
0.5/1
75%
4.5/6
49%
20.5/42
 
DanaSah 4.242527   65%
6.5/10
67%
4/6
58%
3.5/6
 
GarboChess 2.20 32-bit2522   75%
3/4
50%
2/4
69%
5.5/8
 
Brutus 7.02b2515   75%
3/4
50%
2/4
  
Hermann 2.4 32-bit2501   50%
2/4
67%
4/6
75%
4.5/6
30%
3/10
Arasan 11.3 32-bit2500    50%
2.5/5
50%
1/2
 
Yace 0.99.872488    50%
1/2
25%
0.5/2
 
Cerebro 3.03d2481   62%
2.5/4
38%
1.5/4
  
Pepito 1.59 32-bit2481   58%
3.5/6
50%
1/2
75%
1.5/2
 
Rotor 0.42480     50%
1/2
38%
1.5/4
NameEloChronos
1.9.9
32-bit
Chronos
1.9.9
64-bit
Chronos
1.9.8
64-bit
Chronos
1.9.7
Chronos
1.9.6
Chronos
1.9.5
Chronos
1.9.4
BBChess 1.3b2477   50%
2/4
100%
4/4
50%
1/2
 
Anatoli 0.35k2475   75%
3/4
62%
2.5/4
50%
1/2
 
Bruja 1.9.1 32-bit2444     75%
1.5/2
40%
8/20
Homer 2.012429     50%
1/2
75%
3/4
Pupsi2 0.072428   50%
0.5/1
70%
38/54
75%
21/28
54%
7.5/14
nanoSzachy 3.42407     50%
1/2
50%
7/14
Amy 0.87b2402     50%
1/2
75%
1.5/2
Sorgenkind 0.42388     75%
1.5/2
75%
4.5/6
Sage 3.532386     75%
1.5/2
58%
3.5/6
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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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