CCRL 40/40
Downloads and Statistics
October 19, 2019
Testing summary:
Total: 1'092'341 games
played by 2'556 programs
149261 CPU days (X2 4600+)

White wins: 378'952 (34.7%)
Black wins: 281'710 (25.8%)
Draws: 431'679 (39.5%)
White score: 54.5%

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 October 19, 2019 with Bayeselo based on 1'092'341 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-bit2334+30−3048.7%+10.825.2%393 
99.4%
 Butcher 1.60n12285+23−2348.3%+10.631.9%621
48.8%
 Butcher 1.61 32-bit2285+27−2748.1%+14.924.3%493
59.1%
 Butcher 1.64 64-bit2281+20−2048.2%+9.727.1%878
 

Results matrix

Custom engine selection
#NameElo1234
1Butcher 1.61 64-bit2334    
2Butcher 1.60n12285    
3Butcher 1.61 32-bit2285    
4Butcher 1.64 64-bit2281    
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-bit2334 99.499.199.8
2Butcher 1.60n122850.6 48.858.6
3Butcher 1.61 32-bit22850.951.2 59.1
4Butcher 1.64 64-bit22810.241.440.9 
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-bit2334 1197439
2Butcher 1.60n12285119 41766
3Butcher 1.61 32-bit228574417 144
4Butcher 1.64 64-bit22813966144 
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-bit2334 11.78.43.1
2Butcher 1.60n1228511.7 37.44.4
3Butcher 1.61 32-bit22858.437.4 10.5
4Butcher 1.64 64-bit22813.14.410.5 
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
1.60n1
Butcher
1.61
32-bit
Butcher
1.64
64-bit
Eeyore 1.52 32-bit2406 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 0.4238946%
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 1.012371 50%
2/4
19%
1.5/8
 
TJchess 1.1 64-bit23650%
0/2
  33%
6/18
OliThink 5.3.0 32-bit2359 25%
1/4
41%
9/22
 
Flux 2.2.1235744%
10.5/24
25%
0.5/2
  
Plisk 0.2.7d 32-bit2352 50%
2/4
54%
19.5/36
 
Plisk 0.2.6 32-bit2350100%
1/1
38%
1.5/4
  
GreKo 5.9234975%
1.5/2
75%
1.5/2
  
Tytan 9.32 32-bit2347 50%
2/4
25%
0.5/2
 
Ghost 2.0.12343 41%
14/34
45%
8.5/19
62%
2.5/4
Amundsen 0.802328 41%
6.5/16
50%
1/2
 
Alex 2.132326 38%
1.5/4
38%
3/8
 
Sjakk 1.1.92326  50%
5/10
55%
5.5/10
Simplex 0.9.7 32-bit2324 58%
7/12
46%
5.5/12
 
Chezzz 1.0.32322 50%
1/2
 62%
2.5/4
NameEloButcher
1.61
64-bit
Butcher
1.60n1
Butcher
1.61
32-bit
Butcher
1.64
64-bit
ECE 12.012319  45%
4.5/10
52%
12.5/24
EveAnn 1.672319  50%
1/2
44%
3.5/8
Mediocre 0.42318  29%
4/14
10%
0.5/5
Cheese 1.32309 53%
16/30
75%
1.5/2
 
Waxman 20102309 44%
7/16
38%
6/16
 
Capivara LK 0.09a01a 64-bit230867%
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 1.1.142302 50%
1/2
 0%
0/1
Anechka 0.082300 50%
2/4
75%
3/4
25%
0.5/2
Zeus 1.29229925%
0.5/2
38%
1.5/4
  
Popochin 3.22296 53%
9.5/18
100%
2/2
25%
0.5/2
AliChess 4.252284 25%
1/4
42%
13.5/32
50%
5/10
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 Nosferatu2252 66%
21/32
100%
4/4
50%
1/2
Atak 6.82237 52%
10.5/20
58%
7/12
100%
1/1
Dolphin 1.0 64-bit2230 62%
5/8
70%
7/10
38%
1.5/4
Beowulf 2.4a 32-bit2218 62%
2.5/4
83%
5/6
 
NameEloButcher
1.61
64-bit
Butcher
1.60n1
Butcher
1.61
32-bit
Butcher
1.64
64-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%

Alter engine selection



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 October 19, 2019