CCRL 40/40
Downloads and Statistics
November 16, 2019
Testing summary:
Total: 1'098'633 games
played by 2'562 programs
150143 CPU days (X2 4600+)

White wins: 380'990 (34.7%)
Black wins: 283'127 (25.8%)
Draws: 434'516 (39.6%)
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 CPU.
Computed on November 16, 2019 with Bayeselo based on 1'098'633 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+
1CuckooChess 1.12 32-bit2592+26−2648.8%+9.029.9%521 
90.8%
 CuckooChess 1.11 32-bit2565+29−2950.4%−2.434.1%384
94.3%
 CuckooChess 1.102531+31−3151.5%−11.834.5%330
83.0%
 CuckooChess 1.092509+33−3351.6%−13.226.8%317
 

Results matrix

Custom engine selection
#NameElo1234
1CuckooChess 1.12 32-bit2592    
2CuckooChess 1.11 32-bit2565    
3CuckooChess 1.102531    
4CuckooChess 1.092509    
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
1CuckooChess 1.12 32-bit2592 90.899.8100.0
2CuckooChess 1.11 32-bit25659.2 94.399.4
3CuckooChess 1.1025310.25.7 83.0
4CuckooChess 1.0925090.00.617.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo1234
1CuckooChess 1.12 32-bit2592 264136126
2CuckooChess 1.11 32-bit2565264 265138
3CuckooChess 1.102531136265 129
4CuckooChess 1.092509126138129 
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
1CuckooChess 1.12 32-bit2592 29.216.015.0
2CuckooChess 1.11 32-bit256529.2 37.119.7
3CuckooChess 1.10253116.037.1 19.9
4CuckooChess 1.09250915.019.719.9 
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 60 common opponents

Custom engine selection
NameEloCuckooChess
1.12
32-bit
CuckooChess
1.11
32-bit
CuckooChess
1.10
CuckooChess
1.09
Daydreamer 1.75 32-bit266825%
1/4
12%
0.5/4
  
Bobcat 2.75 32-bit265975%
1.5/2
25%
3.5/14
  
CM10th Magic II264325%
0.5/2
  19%
1.5/8
RedQueen 1.0.0 32-bit263738%
6/16
50%
1/2
  
Gandalf 6263325%
1/4
25%
0.5/2
  
CM10th Default2632 21%
2.5/12
0%
0/1
 
ProDeo 1.7262971%
8.5/12
  35%
3.5/10
Arasan 13.4 32-bit262355%
5.5/10
 30%
3/10
 
Deuterium 11.01.28.159262050%
3/6
25%
2/8
 44%
3.5/8
Slow Chess Blitz WV22616 25%
2.5/10
 56%
4.5/8
Dirty 24Apr2011 32-bit2614 75%
1.5/2
12%
1.5/12
 
Arasan 13.2 32-bit260867%
8/12
25%
1.5/6
45%
4.5/10
 
Philou 3.60260758%
3.5/6
47%
8.5/18
  
Naum 1.91 32-bit2605 60%
6/10
 38%
3/8
Philou 3.7.1 32-bit260350%
2/4
 65%
6.5/10
 
Aristarch 4.5025950%
0/4
33%
2/6
100%
1/1
 
The Baron 2.23 32-bit259525%
0.5/2
50%
1/2
  
Pseudo 0.7c2591100%
2/2
75%
3/4
  
Amyan 1.722590 50%
8/16
39%
5.5/14
 
Rotor 0.6258962%
7.5/12
46%
6.5/14
50%
2/4
25%
1/4
NameEloCuckooChess
1.12
32-bit
CuckooChess
1.11
32-bit
CuckooChess
1.10
CuckooChess
1.09
Petir 4.999999257925%
0.5/2
38%
1.5/4
  
RedQueen 0.9.8 32-bit2577 56%
4.5/8
14%
1.5/11
 
Cheng3 1.04 32-bit257625%
2.5/10
50%
1/2
  
Gaviota 0.84 32-bit257150%
5/10
25%
1.5/6
45%
4.5/10
 
Bobcat 20110414 32-bit2570 58%
3.5/6
75%
3/4
 
Scorpio 2.2 32-bit2570 40%
4/10
 22%
4/18
N2 0.4 32-bit2568100%
2/2
44%
8/18
12%
0.5/4
 
Brutus 8.05 32-bit256758%
3.5/6
46%
6.5/14
30%
1.5/5
 
SOS 5.1256375%
1.5/2
58%
3.5/6
  
Cheng3 1.05 32-bit255950%
1/2
92%
5.5/6
  
Francesca MAD 0.19255860%
6/10
  30%
3/10
Ufim 8.022544100%
2/2
50%
2/4
  
DanaSah 4.66254250%
2/4
45%
4.5/10
  
DanaSah 4.602541 75%
4.5/6
38%
1.5/4
 
AnMon 5.752539 58%
3.5/6
75%
3/4
 
Rodent 0.102539  55%
5.5/10
40%
4/10
GarboChess 3.0 32-bit2537100%
2/2
54%
7.5/14
60%
6/10
 
Glass 1.8 32-bit253733%
2/6
  30%
3/10
Gaviota 0.83 32-bit2525 66%
10.5/16
60%
3/5
75%
6/8
Rodin 4.0252462%
2.5/4
58%
3.5/6
  
NameEloCuckooChess
1.12
32-bit
CuckooChess
1.11
32-bit
CuckooChess
1.10
CuckooChess
1.09
Brutus 7.02b251565%
6.5/10
  56%
4.5/8
Glass 1.7 32-bit2515100%
2/2
54%
6.5/12
55%
5.5/10
 
Nimzo 82513  70%
7/10
25%
1/4
Hermann 2.8 32-bit250962%
2.5/4
73%
16/22
  
Tao 5.6250375%
3/4
38%
1.5/4
  
Delphil 2.8249375%
1.5/2
58%
3.5/6
  
GreKo 8.2 32-bit248775%
1.5/2
50%
1/2
 45%
4.5/10
Xpdnt 0910072482 88%
7/8
38%
1.5/4
 
Anatoli 0.35k2476100%
2/2
  12%
0.5/4
Chronos 1.9.42473  50%
5/10
62%
5/8
Pupsi2 0.08247375%
1.5/2
 62%
2.5/4
 
Trace 1.37a2472 50%
2/4
 75%
3/4
Delphil 2.72469 62%
2.5/4
40%
4/10
 
LittleThought 1.052 32-bit2468 75%
3/4
75%
1.5/2
 
Gaviota 0.80 32-bit2467  75%
7.5/10
81%
6.5/8
GreKo 8.0 32-bit2450 88%
3.5/4
 50%
2/4
Abrok 5.0244450%
1/2
  25%
1/4
Hussar 0.4244475%
3/4
50%
2/4
68%
13/19
 
Cheng3 1.02b2441  72%
11.5/16
75%
6/8
Pawny 0.2.1 32-bit2403  50%
4/8
75%
6/8
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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Created in 2005-2013 by CCRL team
Last games added on November 16, 2019