CCRL 40/40
Downloads and Statistics
May 18, 2019
Testing summary:
Total: 1'044'560 games
played by 2'452 programs
143157 CPU days (X2 4600+)

White wins: 363'036 (34.8%)
Black wins: 270'297 (25.9%)
Draws: 411'227 (39.4%)
White score: 54.4%

Custom engine selection

Comparing 4 engines!
4 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 Intel CPU.
Computed on May 18, 2019 with Bayeselo based on 1'044'560 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+
1Butcher 1.61 64-bit2335+30−3049.1%+8.425.1%383 
99.4%
 Butcher 1.64 64-bit2287+21−2149.0%+2.527.6%804
55.1%
 Butcher 1.60n12285+23−2348.3%+10.231.9%621
48.9%
 Butcher 1.61 32-bit2285+27−2748.1%+14.624.3%493
 

Results matrix

Custom engine selection
#NameElo1234
1Butcher 1.61 64-bit2335    
2Butcher 1.64 64-bit2287    
3Butcher 1.60n12285    
4Butcher 1.61 32-bit2285    
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
1Butcher 1.61 64-bit2335 99.499.599.2
2Butcher 1.64 64-bit22870.6 55.153.6
3Butcher 1.60n122850.544.9 48.9
4Butcher 1.61 32-bit22850.846.451.1 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo1234
1Butcher 1.61 64-bit2335 3911974
2Butcher 1.64 64-bit228739 66144
3Butcher 1.60n1228511966 417
4Butcher 1.61 32-bit228574144417 
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
1Butcher 1.61 64-bit2335 3.311.98.4
2Butcher 1.64 64-bit22873.3 4.611.1
3Butcher 1.60n1228511.94.6 37.4
4Butcher 1.61 32-bit22858.411.137.4 
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 43 common opponents

Custom engine selection
NameEloButcher
1.61
64-bit
Butcher
1.64
64-bit
Butcher
1.60n1
Butcher
1.61
32-bit
Eeyore 1.52 32-bit2405  12%
0.5/4
62%
2.5/4
Sjakk 2.0 64-bit240333%
1/3
25%
0.5/2
  
Gosu 0.16239640%
9.5/24
75%
1.5/2
  
Sorgenkind 0.4238846%
11/24
 40%
6/15
 
Jazz 721 64-bit238450%
1/2
62%
2.5/4
  
Ares 1.004237342%
10/24
 36%
11.5/32
29%
7.5/26
TJchess 1.012370  50%
2/4
19%
1.5/8
TJchess 1.1 64-bit23650%
0/2
33%
6/18
  
OliThink 5.3.0 32-bit2358  25%
1/4
41%
9/22
Flux 2.2.1235344%
10.5/24
 25%
0.5/2
 
Plisk 0.2.7d 32-bit2350  50%
2/4
54%
19.5/36
GreKo 5.9234975%
1.5/2
 75%
1.5/2
 
Plisk 0.2.6 32-bit2349100%
1/1
 38%
1.5/4
 
Tytan 9.32 32-bit2346  50%
2/4
25%
0.5/2
Ghost 2.0.12342 62%
2.5/4
41%
14/34
45%
8.5/19
Amundsen 0.802328  41%
6.5/16
50%
1/2
Alex 2.132326  38%
1.5/4
38%
3/8
Sjakk 1.1.92326 55%
5.5/10
 50%
5/10
Simplex 0.9.7 32-bit2323  58%
7/12
46%
5.5/12
Chezzz 1.0.32322 62%
2.5/4
50%
1/2
 
NameEloButcher
1.61
64-bit
Butcher
1.64
64-bit
Butcher
1.60n1
Butcher
1.61
32-bit
ECE 12.012319 52%
12.5/24
 45%
4.5/10
EveAnn 1.672319 44%
3.5/8
 50%
1/2
Mediocre 0.42318 10%
0.5/5
 29%
4/14
Waxman 20102309  44%
7/16
38%
6/16
Cheese 1.32308  53%
16/30
75%
1.5/2
Capivara LK 0.09a01a 64-bit230767%
2/3
12%
0.5/4
  
Waxman 2011230567%
2/3
42%
12.5/30
  
Sjakk 1.1.8230369%
16.5/24
  25%
2/8
Joker 1.1.142301 0%
0/1
50%
1/2
 
Anechka 0.082300 25%
0.5/2
50%
2/4
75%
3/4
Zeus 1.29229925%
0.5/2
 38%
1.5/4
 
Popochin 3.22296 25%
0.5/2
53%
9.5/18
100%
2/2
AliChess 4.252284 50%
5/10
25%
1/4
42%
13.5/32
Glass 1.2228367%
2/3
 50%
1/2
 
Matilde 2008 32-bit2273  50%
3/6
25%
0.5/2
Sungorus 1.4 32-bit2260  67%
16/24
64%
14/22
RattateChess 1.0 Nosferatu2251 50%
1/2
66%
21/32
100%
4/4
Atak 6.82237 100%
1/1
52%
10.5/20
58%
7/12
Dolphin 1.0 64-bit2230 38%
1.5/4
62%
5/8
70%
7/10
Beowulf 2.4a 32-bit2218  62%
2.5/4
83%
5/6
NameEloButcher
1.61
64-bit
Butcher
1.64
64-bit
Butcher
1.60n1
Butcher
1.61
32-bit
Uralochka 1.1b2218  69%
5.5/8
25%
0.5/2
KMTChess 1.2.1 32-bit2182  38%
3/8
75%
3/4
ECE 11.012180  50%
2/4
38%
1.5/4
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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Alter output selection

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 May 18, 2019