CCRL 40/40
Downloads and Statistics
July 19, 2019
Testing summary:
Total: 1'068'538 games
played by 2'502 programs
146028 CPU days (X2 4600+)

White wins: 371'241 (34.7%)
Black wins: 276'263 (25.9%)
Draws: 421'034 (39.4%)
White score: 54.4%

Custom engine selection

Comparing 3 engines!
3 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 July 19, 2019 with Bayeselo based on 1'068'538 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+
1KnightX 1.94 64-bit2350+22−2249.5%+2.726.1%724 
98.0%
 KnightX 1.93 64-bit2319+20−2051.6%−12.720.3%930
59.4%
 KnightX 1.922316+19−1948.6%+9.927.9%1046
 

Results matrix

Custom engine selection
#NameElo123
1KnightX 1.94 64-bit2350   
2KnightX 1.93 64-bit2319   
3KnightX 1.922316   
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
#NameElo123
1KnightX 1.94 64-bit2350 98.099.0
2KnightX 1.93 64-bit23192.0 59.4
3KnightX 1.9223161.040.6 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo123
1KnightX 1.94 64-bit2350 514111
2KnightX 1.93 64-bit2319514 387
3KnightX 1.922316111387 
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
#NameElo123
1KnightX 1.94 64-bit2350 31.16.3
2KnightX 1.93 64-bit231931.1 19.6
3KnightX 1.9223166.319.6 
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 40 common opponents

Custom engine selection
NameEloKnightX
1.94
64-bit
KnightX
1.93
64-bit
KnightX
1.92
Arasan 10.12439 35%
3.5/10
38%
1.5/4
Snitch 1.6.2 32-bit243637%
12.5/34
30%
3/10
100%
2/2
RomiChess P3n 64-bit241343%
16.5/38
61%
19.5/32
56%
5/9
Dragon 4.62405 40%
4/10
25%
1/4
Simplex 0.9.8 64-bit239938%
13/34
20%
2/10
 
Myrddin 0.87 64-bit2394 42%
13.5/32
83%
2.5/3
Popochin 4.1 64-bit239225%
1/4
 50%
6/12
Ares GB 64-bit238412%
0.5/4
39%
15/38
 
Comet B682383 50%
5/10
46%
5.5/12
Zevra 2.1.1 r216 64-bit238325%
1/4
38%
1.5/4
 
Thor's Hammer 2.28 32-bit2382 30%
3/10
67%
2/3
Jumbo 0.5.3 64-bit2370 40%
4/10
17%
1/6
Waxman 2017236962%
2.5/4
 38%
5/13
Isa 2.0.64 64-bit235946%
15.5/34
44%
14/32
42%
5/12
Flux 2.2.1235638%
13/34
 50%
1/2
Gibbon 2.60a 64-bit2338 45%
4.5/10
50%
1/2
FireFly 2.7.2 64-bit232912%
0.5/4
 35%
3.5/10
Chezzz 1.0.32321 40%
12/30
75%
3/4
Googleplex Starthinker 1.4 64-bit232054%
20.5/38
46%
16.5/36
 
EveAnn 1.722319 39%
11/28
56%
20/36
NameEloKnightX
1.94
64-bit
KnightX
1.93
64-bit
KnightX
1.92
EveAnn 1.71a2318 62%
2.5/4
50%
1/2
Ant 2006-F2302 48%
14.5/30
69%
5.5/8
Natwarlal 0.142302 55%
5.5/10
42%
5/12
CT800 1.34 64-bit230066%
22.5/34
60%
21.5/36
 
Zeus 1.292298 55%
5.5/10
56%
4.5/8
Chaturanga 2.4.32290 55%
5.5/10
75%
1.5/2
Invictus r228 64-bit2289 53%
16/30
75%
4.5/6
Matilde 2008 64-bit2288 55%
5.5/10
100%
2/2
AliChess 4.252283 65%
19.5/30
50%
1/2
Barbarossa 0.5.0 64-bit227547%
16/34
61%
23/38
 
Chispa 4.0.32272 57%
17/30
75%
1.5/2
Ayito 0.2.9942264 55%
5.5/10
70%
7/10
Beowulf 2.4a 64-bit2249 57%
17/30
75%
1.5/2
SpaceDog 0.97.7 64-bit223581%
27.5/34
0%
0/2
 
Joker2 0.7.7 64-bit2220 75%
1.5/2
44%
3.5/8
Madeleine 0.2221381%
27.5/34
70%
21/30
 
Baislicka 1.0 64-bit2207 25%
0.5/2
45%
4.5/10
Dorpsgek Eve's Temptation 64-bit220078%
26.5/34
50%
1/2
 
NG-Play 9.87 64-bit2187 50%
1/2
75%
7.5/10
Clever Girl r185 64-bit2162100%
4/4
100%
2/2
 
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 July 19, 2019