CCRL 40/15
Downloads and Statistics
May 8, 2021
Testing summary:
Total: 1'242'291 games
played by 2'843 programs

White wins: 425'658 (34.3%)
Black wins: 312'703 (25.2%)
Draws: 503'930 (40.6%)
White score: 54.5%

Custom engine selection

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

CCRL 40/15 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 15 minutes on an Intel i7-4770k.
Computed on May 8, 2021 with Bayeselo based on 1'242'291 games
Please refer to the "about" page for comments on engine inclusion

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-bit2739+17−1750.3%−0.743.2%1182 
51.2%
 Chronos 1.9.9 64-bit2738+12−1250.2%−3.037.6%2211
99.7%
 Chronos 1.9.8 64-bit2690+31−3148.9%+8.139.3%318
99.6%
 Chronos 1.9.72639+20−2051.4%−8.846.0%768
100.0%
 Chronos 1.9.62583+26−2651.5%−10.838.0%461
91.9%
 Chronos 1.9.52553+32−3250.0%−1.938.1%310
100.0%
 Chronos 1.9.42473+33−3351.5%−10.036.3%300
 

Results matrix

Custom engine selection
#NameElo1234567
1Chronos 1.9.9 32-bit2739       
2Chronos 1.9.9 64-bit2738       
3Chronos 1.9.8 64-bit2690       
4Chronos 1.9.72639       
5Chronos 1.9.62583       
6Chronos 1.9.52553       
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-bit2739 51.299.6100.0100.0100.0100.0
2Chronos 1.9.9 64-bit273848.8 99.7100.0100.0100.0100.0
3Chronos 1.9.8 64-bit26900.40.3 99.6100.0100.0100.0
4Chronos 1.9.726390.00.00.4 100.0100.0100.0
5Chronos 1.9.625830.00.00.00.0 91.9100.0
6Chronos 1.9.525530.00.00.00.08.1 100.0
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-bit2739 3649944578926
2Chronos 1.9.9 64-bit2738364 309154060
3Chronos 1.9.8 64-bit269099309 2430186
4Chronos 1.9.72639445154243 32531821
5Chronos 1.9.625837800325 28858
6Chronos 1.9.5255392618318288 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-bit2739 10.76.622.84.76.20.4
2Chronos 1.9.9 64-bit273810.7 12.25.20.00.20.0
3Chronos 1.9.8 64-bit26906.612.2 22.40.02.91.0
4Chronos 1.9.7263922.85.222.4 26.429.52.0
5Chronos 1.9.625834.70.00.026.4 37.47.6
6Chronos 1.9.525536.20.22.929.537.4 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 5.1.0284329%
4/14
25%
1/4
     
Deep Junior 11.1a 32-bit283038%
1.5/4
  50%
1/2
   
Booot 5.0282325%
1/4
50%
12/24
     
Hannibal 1.0a 32-bit279939%
7/18
 38%
1.5/4
    
Octochess r5506 64-bit278345%
4.5/10
25%
0.5/2
     
Glaurung 2.2 64-bit2781 100%
2/2
75%
3/4
    
Bright 0.5c277738%
1.5/4
29%
7.5/26
     
Jonny 4.00277636%
15.5/43
41%
11.5/28
     
Bright 0.4a2775 62%
2.5/4
 25%
0.5/2
   
Naraku 1.4277366%
14.5/22
22%
4/18
     
Twisted Logic 20100131x 64-bit2770 59%
17/29
46%
11/24
    
Thinker 5.3b Passive 64-bit2764 50%
2/4
12%
0.5/4
    
SmarThink 1.20 64-bit2763 46%
12/26
19%
4.5/24
    
GNU Chess 5.50 64-bit2756 44%
3.5/8
12%
0.5/4
    
Dirty 05Sep2012 64-bit2753 50%
5/10
50%
2/4
    
Ktulu 9275243%
11.5/27
54%
6.5/12
 21%
1.5/7
   
SmarThink 1.20 32-bit274631%
5.5/18
  50%
2/4
   
Spike 1.2 Turin274460%
6/10
58%
14/24
35%
8.5/24
25%
1/4
   
Twisted Logic 20100131x 32-bit273550%
3/6
  25%
1/4
   
Arasan 15.6 64-bit2728 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-bit272755%
32.5/59
  56%
9/16
   
EXchess 7.03b 64-bit2717 100%
2/2
100%
2/2
    
SmarThink 1.10 32-bit2717   50%
2/4
25%
5/20
  
Ktulu 82706   25%
0.5/2
 25%
1/4
 
Chess Tiger 2007.1270350%
4/8
50%
5/10
 50%
1/2
   
Chessmaster 11 Archangel270175%
4.5/6
  50%
3/6
 50%
1/2
 
Crafty 23.2 32-bit269550%
4/8
  64%
4.5/7
   
Chessmaster 11 Conqueror269450%
3/6
75%
3/4
     
Frenzee Feb08 32-bit269467%
4/6
  25%
0.5/2
   
Booot 4.15.02692  44%
10.5/24
46%
5.5/12
   
Chessmaster 11 Aiglos II269288%
3.5/4
50%
4/8
     
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-bit266766%
35.5/54
  56%
4.5/8
   
Deuterium 10.01.27.213266781%
6.5/8
60%
14.5/24
     
Movei 00.8.438 (10 10 10)266690%
4.5/5
77%
21.5/28
56%
13.5/24
42%
16/38
 25%
0.5/2
 
Chessmaster 11266450%
2/4
  0%
0/2
 50%
3/6
 
Alaric 707266067%
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
BugChess2 1.6.4 64-bit2660  67%
15.5/23
46%
11/24
   
CM10th Xperience2660   75%
1.5/2
 25%
0.5/2
 
Bobcat 2.75 32-bit265870%
7/10
100%
2/2
     
BugChess2 1.6.4 32-bit265762%
2.5/4
  34%
6.5/19
   
CM10th Ogre265362%
2.5/4
  75%
3/4
   
E.T. Chess 13.01.08264925%
0.5/2
  53%
10/19
 38%
1.5/4
 
Cyrano 0.6b17 32-bit264862%
2.5/4
  50%
9.5/19
   
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-bit2629   38%
4.5/12
 56%
4.5/8
 
WildCat 82628   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 0.7.1261756%
4.5/8
  52%
11/21
50%
1/2
35%
3.5/10
 
ProDeo 1.62617    75%
1.5/2
25%
2/8
 
Alfil 8.1.12600   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-bit259860%
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-bit2573   60%
6/10
 62%
2.5/4
 
N2 0.4 32-bit256875%
3/4
  50%
3.5/7
   
Brutus 8.05 32-bit256662%
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 4.242526   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
  
Arasan 11.3 32-bit2500    50%
2.5/5
50%
1/2
 
Hermann 2.4 32-bit2500   50%
2/4
67%
4/6
75%
4.5/6
30%
3/10
Yace 0.99.872487    50%
1/2
25%
0.5/2
 
Pepito 1.59 32-bit2481   58%
3.5/6
50%
1/2
75%
1.5/2
 
Cerebro 3.03d2480   62%
2.5/4
38%
1.5/4
  
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
Anatoli 0.35k2475   75%
3/4
62%
2.5/4
50%
1/2
 
BBChess 1.3b2473   50%
2/4
100%
4/4
50%
1/2
 
Bruja 1.9.1 32-bit2444     75%
1.5/2
40%
8/20
Homer 2.012430     50%
1/2
75%
3/4
Pupsi2 0.072428   50%
0.5/1
70%
38/54
75%
21/28
54%
7.5/14
nanoSzachy 3.42408     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 3.532387     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 May 8, 2021