CCRL 40/4
Downloads and Statistics
December 7, 2019
Testing summary:
Total: 2'143'600 games
played by 2'509 programs
29100 CPU days (X2 4600+)

White wins: 830'432 (38.7%)
Black wins: 670'629 (31.3%)
Draws: 642'539 (30.0%)
White score: 53.7%

Custom engine selection

Comparing 4 engines!
4 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 CPU.
Computed on December 7, 2019 with Bayeselo based on 2'143'600 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+
1SlowChess Blitz Classic 1.6 64-bit3026+19−1952.3%−16.740.5%922 
99.8%
 SlowChess Blitz Classic 1.5 64-bit2988+19−1949.7%+3.335.6%937
94.8%
 SlowChess Blitz Classic 1.4 64-bit2965+21−2170.3%−143.132.8%854
100.0%
 Slow Chess Blitz WV2.12615+6−646.1%+28.329.9%12486
 

Results matrix

Custom engine selection
#NameElo1234
1SlowChess Blitz Classic 1.6 64-bit3026    
2SlowChess Blitz Classic 1.5 64-bit2988    
3SlowChess Blitz Classic 1.4 64-bit2965    
4Slow Chess Blitz WV2.12615    
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
1SlowChess Blitz Classic 1.6 64-bit3026 99.8100.0100.0
2SlowChess Blitz Classic 1.5 64-bit29880.2 94.8100.0
3SlowChess Blitz Classic 1.4 64-bit29650.05.2 100.0
4Slow Chess Blitz WV2.126150.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo1234
1SlowChess Blitz Classic 1.6 64-bit3026 149906
2SlowChess Blitz Classic 1.5 64-bit29881499 03
3SlowChess Blitz Classic 1.4 64-bit296500 598
4Slow Chess Blitz WV2.1261563598 
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
1SlowChess Blitz Classic 1.6 64-bit3026 80.60.00.0
2SlowChess Blitz Classic 1.5 64-bit298880.6 0.00.0
3SlowChess Blitz Classic 1.4 64-bit29650.00.0 4.5
4Slow Chess Blitz WV2.126150.00.04.5 
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 47 common opponents

Custom engine selection
NameEloSlowChess
Blitz
Classic
1.6
64-bit
SlowChess
Blitz
Classic
1.5
64-bit
SlowChess
Blitz
Classic
1.4
64-bit
Slow
Chess
Blitz
WV2.1
Hannibal 1.7 64-bit311042%
13/31
  0%
0/1
chess22k 1.13 64-bit308630%
9.5/32
30%
9.5/32
  
Protector 1.9.0 64-bit308542%
13.5/32
28%
9/32
  
Senpai 2.0 64-bit308444%
14/32
36%
11.5/32
  
SmarThink 1.98 64-bit303941%
13/32
45%
14.5/32
  
Naum 4.6 64-bit303250%
16/32
47%
15/32
  
Deuterium 2019.2.37.73 64-bit302142%
13/31
50%
16/32
  
Hakkapeliitta TCEC v2 64-bit302059%
19/32
52%
16.5/32
  
Pirarucu 3.0.7 64-bit301950%
16/32
48%
15.5/32
  
Rodent III 0.287 64-bit300552%
16/31
42%
13.5/32
  
ChessBrainVB 3.74300055%
17.5/32
45%
14.5/32
  
Hiarcs 14298759%
19/32
30%
9.5/32
  
Winter 0.7 64-bit298750%
15.5/31
41%
13/32
  
Amoeba 3.0 64-bit297455%
17/31
50%
16/32
  
Crafty 25.3 64-bit296972%
23/32
53%
17/32
  
Marvin 3.4.0 64-bit296365%
20/31
61%
19.5/32
  
Bobcat 8.0 64-bit295852%
16.5/32
50%
16/32
  
Godel 6.0 64-bit294766%
21/32
61%
19.5/32
  
Cheng 4.39 64-bit294566%
21/32
52%
16.5/32
  
Igel 2.0.0 64-bit292748%
15.5/32
73%
23.5/32
  
NameEloSlowChess
Blitz
Classic
1.6
64-bit
SlowChess
Blitz
Classic
1.5
64-bit
SlowChess
Blitz
Classic
1.4
64-bit
Slow
Chess
Blitz
WV2.1
Spark 1.0 64-bit292766%
21/32
58%
18.5/32
  
Atlas 3.91 64-bit292569%
22/32
59%
19/32
  
Dirty CUCUMBER 64-bit292573%
23.5/32
58%
18.5/32
  
Spike 1.4 Leiden292177%
24.5/32
64%
69/108
 50%
0.5/1
Quazar 0.4 64-bit2901  56%
18/32
11%
3.5/32
Zurichess Neuchatel 64-bit2900  61%
19.5/32
100%
1/1
Daydreamer 2.0.0-pre2 64-bit2894  61%
19.5/32
50%
0.5/1
Bright 0.5c2771  94%
17/18
18%
5.5/31
Frenzee 3.5.19 64-bit2770  83%
15/18
23%
7.5/32
Twisted Logic 20090922 64-bit2770  83%
15/18
28%
9/32
tomitankChess 3.0 64-bit2765  69%
12.5/18
20%
5/25
Jonny 4.002763  72%
13/18
30%
9/30
BugChess2 1.9 64-bit2759  78%
14/18
27%
8.5/31
Chronos 1.9.9 64-bit2740  78%
14/18
30%
9.5/32
Shield 2.1 64-bit2740  81%
14.5/18
0%
0/1
Chess Tiger 2007.12713  75%
13.5/18
37%
40/109
Colossus 2008b2642  100%
4/4
48%
38/79
Cyrano 0.6b17 64-bit2641  88%
3.5/4
43%
27.5/64
Sjakk 2.2 64-bit2638  75%
3/4
53%
17/32
Rodin 8.02636  75%
3/4
49%
16.5/34
NameEloSlowChess
Blitz
Classic
1.6
64-bit
SlowChess
Blitz
Classic
1.5
64-bit
SlowChess
Blitz
Classic
1.4
64-bit
Slow
Chess
Blitz
WV2.1
E.T. Chess 13.01.082634  100%
4/4
52%
16.5/32
WyldChess 1.51 64-bit2630  100%
4/4
50%
16/32
Movei 00.8.438 (10 10 10)2623  75%
3/4
54%
21.5/40
WildCat 82623  75%
3/4
49%
33/67
Orion 0.6 64-bit2622  100%
4/4
50%
16/32
Sloppy 0.2.2 64-bit2617  100%
4/4
43%
15/35
Rotor 0.82612  100%
4/4
67%
21.5/32
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%

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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 December 7, 2019