CCRL 40/4
Downloads and Statistics
May 19, 2019
Testing summary:
Total: 2'021'465 games
played by 2'345 programs
27203 CPU days (X2 4600+)

White wins: 786'446 (38.9%)
Black wins: 635'703 (31.4%)
Draws: 599'316 (29.6%)
White score: 53.7%

Custom engine selection

Comparing 3 engines!
3 selected engines played 0 games with each other

CCRL 40/4 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 4 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 1.5 minutes on a modern Intel CPU.
Computed on May 19, 2019 with Bayeselo based on 2'021'465 games

Color legend: Commercial, Free, Open source, Private.
Bold font - tested with 300 games or more. Normal font - less than 300 games.

RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
Elo+
1Ktulu 92782+8−846.6%+22.531.1%6596 
100.0%
 Ktulu 82725+14−1452.5%−21.229.5%1797
100.0%
 Ktulu 4.22545+11−1150.0%+1.026.7%3075
 

Results matrix

Custom engine selection
#NameElo123
1Ktulu 92782   
2Ktulu 82725   
3Ktulu 4.22545   
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
1Ktulu 92782 100.0100.0
2Ktulu 827250.0 100.0
3Ktulu 4.225450.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo123
1Ktulu 92782 461103
2Ktulu 82725461 713
3Ktulu 4.22545103713 
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
1Ktulu 92782 5.51.1
2Ktulu 827255.5 14.6
3Ktulu 4.225451.114.6 
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 27 common opponents

Custom engine selection
NameEloKtulu
9
Ktulu
8
Ktulu
4.2
Fritz 11288832%
15.5/49
38%
19/50
 
Loop 13.6 (Loop 2007) 32-bit2775 37%
18/49
17%
5/30
Bison 9.11 64-bit2761100%
1/1
 33%
8.5/26
Jonny 4.00275650%
1.5/3
 37%
10/27
Spike 1.2 Turin273159%
48.5/82
55%
53/96
 
Chess Tiger 2007.1271361%
20/33
54%
53/98
 
Naum 2.0 32-bit2700 80%
12/15
35%
9/26
Delfi 5.426830%
0/1
 25%
6.5/26
Booot 4.15.0266564%
21/33
 21%
6/28
Slow Chess Blitz WV2.1261570%
23/33
71%
35/49
 
ProDeo 1.22608 67%
10/15
46%
13/28
WildCat 72606 62%
32/52
31%
9/29
Amyan 1.722604100%
2/2
 41%
11/27
Pharaon 3.5.12604100%
1/1
 42%
13.5/32
Pseudo 0.7c2576 69%
18.5/27
36%
11.5/32
SOS 5.12575100%
1/1
65%
17.5/27
55%
17.5/32
Brutus 8.05 64-bit255550%
0.5/1
 52%
13.5/26
Jonny 2.83 32-bit2552 81%
22/27
56%
18/32
Anaconda 2.0.12546 76%
20.5/27
52%
16/31
Hermann 2.8 64-bit2531100%
1/1
 59%
17/29
NameEloKtulu
9
Ktulu
8
Ktulu
4.2
AnMon 5.602517 76%
20.5/27
56%
18/32
E.T. Chess 18.11.052511 76%
20.5/27
47%
15/32
Trace 1.37a2501 74%
18.5/25
45%
14.5/32
Tao 5.62486100%
1/1
 69%
22/32
Amyan 1.5972462 74%
20/27
55%
17.5/32
SpiderChess 0706032439100%
1/1
 70%
22.5/32
King of Kings 2.562433100%
1/1
 81%
26/32
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



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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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Reference rating list:
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Created in 2005-2013 by CCRL team
Last games added on May 19, 2019