CCRL 40/4
Downloads and Statistics
June 22, 2019
Testing summary:
Total: 2'052'494 games
played by 2'371 programs
27529 CPU days (X2 4600+)

White wins: 797'533 (38.9%)
Black wins: 645'585 (31.5%)
Draws: 609'376 (29.7%)
White score: 53.7%

Custom engine selection

Comparing 13 engines!
13 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 June 22, 2019 with Bayeselo based on 2'052'494 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+
1Zevra 2.0 r172 64-bit2407+31−3066.7%−123.220.1%413 
95.0%
 Zevra 2.1.1 r216 64-bit2377+18−1843.8%+46.821.0%1124
100.0%
 Zevra 1.8.6 r672 64-bit2302+18−1847.9%+15.525.2%1137
96.9%
 Zevra 1.8.5 r664 64-bit2273+25−2557.9%−58.824.5%567
99.9%
 Zevra 1.8.4 r650 64-bit2220+20−2045.5%+36.522.4%897
65.3%
 Zevra 1.8.3 r636 64-bit2214+20−2052.0%−14.220.4%894
99.9%
 Zevra 1.8.1 r594 64-bit2152+32−3167.9%−132.717.8%410
100.0%
 Zevra 1.6.1 r512 64-bit1954+20−2048.9%+7.323.9%884
87.3%
 Zevra 1.6.1 r5136 64-bit1933+30−3046.9%+23.026.6%384
97.6%
 Zevra 1.5 r446 64-bit1891+28−2854.0%−30.817.5%475
83.1%
 Zevra 1.6 r4971870+31−3145.5%+32.919.8%379
100.0%
 Zevra 1.31 r3401768+26−2649.3%+4.421.5%543
74.0%
 Zevra 1.21 r2901755+28−2837.6%+91.027.1%458
 

Results matrix

Custom engine selection
#NameElo12345678910111213
1Zevra 2.0 r172 64-bit2407             
2Zevra 2.1.1 r216 64-bit2377             
3Zevra 1.8.6 r672 64-bit2302             
4Zevra 1.8.5 r664 64-bit2273             
5Zevra 1.8.4 r650 64-bit2220             
6Zevra 1.8.3 r636 64-bit2214             
7Zevra 1.8.1 r594 64-bit2152             
8Zevra 1.6.1 r512 64-bit1954             
9Zevra 1.6.1 r5136 64-bit1933             
10Zevra 1.5 r446 64-bit1891             
11Zevra 1.6 r4971870             
12Zevra 1.31 r3401768             
13Zevra 1.21 r2901755             
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
#NameElo12345678910111213
1Zevra 2.0 r172 64-bit2407 95.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Zevra 2.1.1 r216 64-bit23775.0 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Zevra 1.8.6 r672 64-bit23020.00.0 96.9100.0100.0100.0100.0100.0100.0100.0100.0100.0
4Zevra 1.8.5 r664 64-bit22730.00.03.1 99.9100.0100.0100.0100.0100.0100.0100.0100.0
5Zevra 1.8.4 r650 64-bit22200.00.00.00.1 65.3100.0100.0100.0100.0100.0100.0100.0
6Zevra 1.8.3 r636 64-bit22140.00.00.00.034.7 99.9100.0100.0100.0100.0100.0100.0
7Zevra 1.8.1 r594 64-bit21520.00.00.00.00.00.1 100.0100.0100.0100.0100.0100.0
8Zevra 1.6.1 r512 64-bit19540.00.00.00.00.00.00.0 87.3100.0100.0100.0100.0
9Zevra 1.6.1 r5136 64-bit19330.00.00.00.00.00.00.012.7 97.699.8100.0100.0
10Zevra 1.5 r446 64-bit18910.00.00.00.00.00.00.00.02.4 83.1100.0100.0
11Zevra 1.6 r49718700.00.00.00.00.00.00.00.00.216.9 100.0100.0
12Zevra 1.31 r34017680.00.00.00.00.00.00.00.00.00.00.0 74.0
13Zevra 1.21 r29017550.00.00.00.00.00.00.00.00.00.00.026.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo12345678910111213
1Zevra 2.0 r172 64-bit2407 02701383761670000000
2Zevra 2.1.1 r216 64-bit23770 630600000000
3Zevra 1.8.6 r672 64-bit230227063 82211640000000
4Zevra 1.8.5 r664 64-bit2273138082 5492483000000
5Zevra 1.8.4 r650 64-bit22203766211549 5330000000
6Zevra 1.8.3 r636 64-bit2214167064248533 0000000
7Zevra 1.8.1 r594 64-bit2152000300 30730059033
8Zevra 1.6.1 r512 64-bit1954000000307 2462383610236
9Zevra 1.6.1 r5136 64-bit1933000000300246 1145800
10Zevra 1.5 r446 64-bit189100000059238114 237157246
11Zevra 1.6 r4971870000000036158237 0161
12Zevra 1.31 r34017680000003001570 394
13Zevra 1.21 r290175500000032360246161394 
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
#NameElo12345678910111213
1Zevra 2.0 r172 64-bit2407 0.017.414.128.712.80.00.00.00.00.00.00.0
2Zevra 2.1.1 r216 64-bit23770.0 2.80.00.30.00.00.00.00.00.00.00.0
3Zevra 1.8.6 r672 64-bit230217.42.8 4.810.43.20.00.00.00.00.00.00.0
4Zevra 1.8.5 r664 64-bit227314.10.04.8 37.517.00.30.00.00.00.00.00.0
5Zevra 1.8.4 r650 64-bit222028.70.310.437.5 29.80.00.00.00.00.00.00.0
6Zevra 1.8.3 r636 64-bit221412.80.03.217.029.8 0.00.00.00.00.00.00.0
7Zevra 1.8.1 r594 64-bit21520.00.00.00.30.00.0 23.737.86.70.00.30.3
8Zevra 1.6.1 r512 64-bit19540.00.00.00.00.00.023.7 19.417.528.60.017.6
9Zevra 1.6.1 r5136 64-bit19330.00.00.00.00.00.037.819.4 13.37.60.00.0
10Zevra 1.5 r446 64-bit18910.00.00.00.00.00.06.717.513.3 27.815.426.4
11Zevra 1.6 r49718700.00.00.00.00.00.00.028.67.627.8 0.019.2
12Zevra 1.31 r34017680.00.00.00.00.00.00.30.00.015.40.0 39.4
13Zevra 1.21 r29017550.00.00.00.00.00.00.317.60.026.419.239.4 
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
NameEloZevra
2.0
r172
64-bit
Zevra
2.1.1
r216
64-bit
Zevra
1.8.6
r672
64-bit
Zevra
1.8.5
r664
64-bit
Zevra
1.8.4
r650
64-bit
Zevra
1.8.3
r636
64-bit
Zevra
1.8.1
r594
64-bit
Zevra
1.6.1
r512
64-bit
Zevra
1.6.1
r5136
64-bit
Zevra
1.5
r446
64-bit
Zevra
1.6
r497
Zevra
1.31
r340
Zevra
1.21
r290
Nemeton 1.82432 48%
15.5/32
37%
11.5/31
          
Dragon 4.62419 53%
18.5/35
  50%
0.5/1
        
Hussar 0.42418 39%
13.5/35
  100%
1/1
        
Amateur 2.822351  45%
14.5/32
 33%
8/24
        
Isa 2.0.64 64-bit231865%
15.5/24
 48%
9.5/20
          
Aice 0.99.2231560%
14.5/24
 48%
15.5/32
 21%
5/24
        
Sungorus 1.4 64-bit231452%
12.5/24
 45%
14.5/32
          
Asterisk 0.6230766%
16.5/25
   40%
8.5/21
        
Averno 0.81230762%
15.5/25
 48%
15.5/32
          
KnightX 1.92229770%
17.5/25
 58%
18.5/32
          
Rival 1.0.1 64-bit2274  55%
17.5/32
 100%
1/1
        
Natwarlal 0.142261  61%
19.5/32
52%
26/50
         
FireFly 2.7.2 64-bit2252  61%
19.5/32
 49%
32.5/67
        
Napoleon 1.8 64-bit2250  58%
18.5/32
  38%
12/32
       
GopherCheck 0.2.3 64-bit223785%
20.5/24
   54%
35.5/66
55%
17/31
       
Robocide 20170718 64-bit2237    50%
33.5/67
44%
14/32
       
Ant 2006-F2236   54%
27.5/51
61%
19/31
        
Anechka 0.082234   63%
32/51
57%
38.5/68
60%
18/30
       
AliChess 4.252229   44%
22/50
46%
31.5/68
45%
14.5/32
       
Joker2 0.7.7 64-bit222871%
17/24
   43%
28.5/67
        
NameEloZevra
2.0
r172
64-bit
Zevra
2.1.1
r216
64-bit
Zevra
1.8.6
r672
64-bit
Zevra
1.8.5
r664
64-bit
Zevra
1.8.4
r650
64-bit
Zevra
1.8.3
r636
64-bit
Zevra
1.8.1
r594
64-bit
Zevra
1.6.1
r512
64-bit
Zevra
1.6.1
r5136
64-bit
Zevra
1.5
r446
64-bit
Zevra
1.6
r497
Zevra
1.31
r340
Zevra
1.21
r290
Adam 3.3222073%
17.5/24
  71%
35.5/50
46%
31/68
41%
13/32
       
RamJet 0.13222067%
16/24
    48%
15.5/32
       
CT800 1.20 64-bit2218    45%
13.5/30
55%
17.5/32
       
Exacto 0.e 64-bit221798%
21.5/22
  47%
22.5/48
47%
30/64
        
Madeleine 0.22183   50%
0.5/1
 52%
16.5/32
       
Gunborg 1.35 64-bit2069   100%
1/1
  52%
14.5/28
      
Little Wing 0.4.0 64-bit2016      70%
19.5/28
48%
15/31
     
Leonidas 83 64-bit2005      71%
20/28
 43%
12.5/29
    
Gullydeckel 2.16pl11992      70%
21/30
45%
14/31
     
BigLion 2.23x1988      72%
21.5/30
44%
14/32
     
Arabian Knight 1.551987      100%
1/1
 40%
12/30
    
Bubble 1.51987      77%
23/30
 40%
12/30
    
Embla 1.0.1 64-bit1987       44%
14/32
37%
11/30
    
La Dame Blanche 2.0c1968      80%
24/30
 42%
12.5/30
    
SSEChessII 2.05 DC1967      78%
23.5/30
45%
14.5/32
63%
19/30
    
Eia 0.31961      65%
19.5/30
47%
14/30
47%
14/30
38%
11/29
   
Chess4j 3.2 64-bit1957       55%
17.5/32
53%
16/30
    
Mustang 4.971957      100%
1/1
48%
13.5/28
    17%
8.5/49
JanWillem 1.131951       67%
21.5/32
  40%
12/30
  
Smash 1.0.31924          47%
13.5/29
 0%
0/1
NameEloZevra
2.0
r172
64-bit
Zevra
2.1.1
r216
64-bit
Zevra
1.8.6
r672
64-bit
Zevra
1.8.5
r664
64-bit
Zevra
1.8.4
r650
64-bit
Zevra
1.8.3
r636
64-bit
Zevra
1.8.1
r594
64-bit
Zevra
1.6.1
r512
64-bit
Zevra
1.6.1
r5136
64-bit
Zevra
1.5
r446
64-bit
Zevra
1.6
r497
Zevra
1.31
r340
Zevra
1.21
r290
Embla 0.9.9 64-bit1917       57%
17/30
 42%
12.5/30
   
IACH 0.56z1916       52%
15/29
 53%
16/30
   
Eagle 0.7.51913       43%
13/30
  47%
13.5/29
 35%
16/46
Warrior 1.0.31907       57%
17/30
 38%
11.5/30
33%
10/30
  
Dabbaba 7.491906       58%
17.5/30
    31%
15.5/50
Clueless 1.41904       65%
19.5/30
  48%
14.5/30
  
Morphy 3.221903       43%
13/30
  52%
15.5/30
  
SnailChess 4.0131897       55%
16.5/30
  50%
15/30
 50%
0.5/1
MrChess 2.11886         47%
14/30
43%
13/30
 33%
16.5/50
Purple Haze 2.1.01884         58%
17.5/30
58%
17.5/30
  
Roce 0.03901853         60%
18/30
  0%
0/1
Deepov 0.4.1 64-bit1847        64%
18/28
48%
13/27
52%
15.5/30
  
HeavyChess 0.13 beta1834         62%
18.5/30
  100%
1/1
Celes 0.77c1826         50%
15/30
  54%
27/50
Beaches 2.321803           52%
25.5/49
47%
23.5/50
Enigma 1.1.41793           58%
29/50
35%
17/48
Embracer 1.121785      100%
1/1
    53%
26.5/50
 
Pulsar 2009-9b1772         57%
16.5/29
 53%
26/49
 
Robin 0.9831764         85%
25.5/30
 46%
22.5/49
42%
21/50
Lodocase 2402081761           44%
22/50
47%
22.5/48
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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Rating list
Testing profile
  (Step: , Numbers: )

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

Maximum size of cross-tables (from 2 to 100):
Limit crosstables to engines in Elo range: to
Match length (Minimum number of games to highlight with color):

Cross-tables show only best version of each engine
Sort cross-tables by:   Rating   Name
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Reference rating list:
Recalibrate:
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  Recalibrate current list to reference using selected engines only
  Recalibrate current list to reference using all common engines


Created in 2005-2013 by CCRL team
Last games added on June 22, 2019