CCRL 40/40
Downloads and Statistics
October 12, 2019
Testing summary:
Total: 1'090'583 games
played by 2'551 programs
149018 CPU days (X2 4600+)

White wins: 378'348 (34.7%)
Black wins: 281'291 (25.8%)
Draws: 430'944 (39.5%)
White score: 54.4%

Custom engine selection

Comparing 5 engines!
5 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 12, 2019 with Bayeselo based on 1'090'583 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+
1Bison 9.11 64-bit2756+13−1349.7%−0.835.5%2013 
99.8%
 Bison 9.11 32-bit2728+14−1448.5%+10.237.2%1810
100.0%
 Bison 9.62620+23−2351.3%−14.033.9%635
59.1%
 Bison 9.8 32-bit2615+33−3349.7%−0.033.6%307
100.0%
 Bison 8.2.4r2281+26−2648.0%+13.823.2%525
 

Results matrix

Custom engine selection
#NameElo12345
1Bison 9.11 64-bit2756     
2Bison 9.11 32-bit2728     
3Bison 9.62620     
4Bison 9.8 32-bit2615     
5Bison 8.2.4r2281     
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
#NameElo12345
1Bison 9.11 64-bit2756 99.8100.0100.0100.0
2Bison 9.11 32-bit27280.2 100.0100.0100.0
3Bison 9.626200.00.0 59.1100.0
4Bison 9.8 32-bit26150.00.040.9 100.0
5Bison 8.2.4r22810.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo12345
1Bison 9.11 64-bit2756 13439612
2Bison 9.11 32-bit2728134 3281960
3Bison 9.6262039328 26443
4Bison 9.8 32-bit26156196264 0
5Bison 8.2.4r2281120430 
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
#NameElo12345
1Bison 9.11 64-bit2756 3.51.50.30.5
2Bison 9.11 32-bit27283.5 13.49.30.0
3Bison 9.626201.513.4 28.03.7
4Bison 9.8 32-bit26150.39.328.0 0.0
5Bison 8.2.4r22810.50.03.70.0 
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 48 common opponents

Custom engine selection
NameEloBison
9.11
64-bit
Bison
9.11
32-bit
Bison
9.6
Bison
9.8
32-bit
Bison
8.2.4r
Booot 5.1.0284450%
1/2
40%
2/5
   
MinkoChess 1.2 32-bit2783 0%
0/1
29%
8.5/29
  
Jonny 4.00277933%
1/3
56%
13.5/24
   
Bright 0.5c277838%
1.5/4
41%
16/39
   
Naraku 1.4277644%
7/16
31%
2.5/8
   
Twisted Logic 20100131x 64-bit276862%
5/8
20%
1/5
   
Ktulu 9275534%
5.5/16
57%
8/14
0%
0/4
  
Rodent 1.3 64-bit274175%
1.5/2
 25%
2.5/10
  
BugChess2 1.9 32-bit2733 35%
8/23
40%
4/10
  
Critter 0.42 32-bit2706 75%
3/4
 40%
10/25
 
Chess Tiger 2007.1270450%
5/10
58%
3.5/6
   
Chessmaster 11 Aiglos II270133%
2/6
25%
0.5/2
   
Chessmaster 11 Conqueror269838%
3/8
75%
1.5/2
   
Chessmaster 11 Archangel2696 25%
0.5/2
50%
2/4
  
Rhetoric 1.2 64-bit269550%
1/2
 30%
3/10
  
Booot 4.15.02693 75%
3/4
25%
1.5/6
  
Delfi 5.42690100%
2/2
48%
9.5/20
42%
2.5/6
  
Cheese 1.8 64-bit2684100%
2/2
  31%
2.5/8
 
Dirty 25Aug2011 32-bit2668 38%
4.5/12
41%
6.5/16
  
Bobcat 2.75 32-bit2660 79%
11/14
35%
3.5/10
  
NameEloBison
9.11
64-bit
Bison
9.11
32-bit
Bison
9.6
Bison
9.8
32-bit
Bison
8.2.4r
BugChess2 1.6.4 32-bit2658 62%
7.5/12
0%
0/1
50%
0.5/1
 
E.T. Chess 13.01.082650 61%
11/18
50%
2/4
20%
1/5
 
Colossus 2008b2644 60%
29.5/49
 50%
2/4
 
Chronos 1.9.72640 44%
7/16
42%
15.5/37
41%
9/22
 
Alfil 12 MT2634100%
2/2
 45%
4.5/10
  
CM10th Warrior2633 75%
3/4
50%
1/2
  
Crafty 23.0 32-bit2630  25%
1.5/6
36%
2.5/7
 
WildCat 82629 47%
7.5/16
50%
2/4
38%
3/8
 
RedQueen 1.1.1 64-bit262575%
1.5/2
68%
13.5/20
   
BugChess2 1.6.3 32-bit2620  60%
3/5
54%
21.5/40
 
Hamsters 0.7.12619 65%
13/20
67%
4/6
75%
3/4
 
Tornado 3.6.7 32-bit2615 50%
2/4
60%
6/10
  
Dirty 24Apr2011 32-bit2614 89%
8/9
55%
5.5/10
  
Alfil 8.1.12601 88%
3.5/4
50%
3/6
60%
24.5/41
 
Sloppy 0.2.2 32-bit2599 80%
25.5/32
75%
3/4
62%
5/8
 
The Baron 2.23 32-bit2595 68%
9.5/14
62%
2.5/4
56%
4.5/8
 
The Baron 1.8.12592  53%
17/32
48%
15.5/32
 
Petir 4.9999992579 100%
2/2
50%
2/4
25%
1/4
 
Critter 0.40 32-bit2577  75%
1.5/2
50%
2/4
 
Scorpio 2.2 32-bit2570 0%
0/1
69%
5.5/8
  
NameEloBison
9.11
64-bit
Bison
9.11
32-bit
Bison
9.6
Bison
9.8
32-bit
Bison
8.2.4r
Rotor 0.52565 56%
4.5/8
50%
15/30
56%
4.5/8
 
Cerebro 3.03d2482  88%
3.5/4
 50%
1/2
Anatoli 0.35k2475  88%
3.5/4
 33%
1/3
Cheese 1.32308  78%
25/32
 58%
3.5/6
Anechka 0.082300100%
1/1
 86%
27.5/32
 50%
2/4
Zeus 1.292298100%
1/1
   42%
7.5/18
Uralochka 1.1b2218100%
1/1
   31%
2.5/8
ChessAlex 2.0r42205100%
1/1
   67%
4/6
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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Reference rating list:
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Created in 2005-2013 by CCRL team
Last games added on October 12, 2019