CCRL 40/40
Downloads and Statistics
May 25, 2019
Testing summary:
Total: 1'048'225 games
played by 2'458 programs
143565 CPU days (X2 4600+)

White wins: 364'320 (34.8%)
Black wins: 271'251 (25.9%)
Draws: 412'654 (39.4%)
White score: 54.4%

Custom engine selection

Comparing 5 engines!
5 selected engines played 60 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 May 25, 2019 with Bayeselo based on 1'048'225 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+
1Zevra 2.1.1 r216 64-bit2381+19−1951.9%−15.426.3%1020 
100.0%
 Zevra 1.8.6 r672 64-bit2269+21−2150.9%−9.125.9%862
88.7%
 Zevra 1.8.5 r664 64-bit2247+29−2955.8%−40.524.4%447
73.4%
 Zevra 1.8.4 r650 64-bit2235+26−2647.2%+23.328.2%507
97.0%
 Zevra 1.8.2 r612 64-bit2197+30−3045.5%+31.327.6%388
 

Results matrix

Custom engine selection
#NameElo12345
1Zevra 2.1.1 r216 64-bit2381 43 − 17
+32−6=22
+30
   
2Zevra 1.8.6 r672 64-bit226917 − 43
+6−32=22
−30
    
3Zevra 1.8.5 r664 64-bit2247     
4Zevra 1.8.4 r650 64-bit2235     
5Zevra 1.8.2 r612 64-bit2197     
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
1Zevra 2.1.1 r216 64-bit2381 100.0100.0100.0100.0
2Zevra 1.8.6 r672 64-bit22690.0 88.797.8100.0
3Zevra 1.8.5 r664 64-bit22470.011.3 73.499.1
4Zevra 1.8.4 r650 64-bit22350.02.226.6 97.0
5Zevra 1.8.2 r612 64-bit21970.00.00.93.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo12345
1Zevra 2.1.1 r216 64-bit2381 634172230248
2Zevra 1.8.6 r672 64-bit2269634 309266323
3Zevra 1.8.5 r664 64-bit2247172309 9064
4Zevra 1.8.4 r650 64-bit223523026690 336
5Zevra 1.8.2 r612 64-bit219724832364336 
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
1Zevra 2.1.1 r216 64-bit2381 33.711.715.117.6
2Zevra 1.8.6 r672 64-bit226933.7 23.619.425.8
3Zevra 1.8.5 r664 64-bit224711.723.6 9.47.7
4Zevra 1.8.4 r650 64-bit223515.119.49.4 37.5
5Zevra 1.8.2 r612 64-bit219717.625.87.737.5 
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 75 common opponents

Custom engine selection
NameEloZevra
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
1.8.2
r612
64-bit
Bumblebee 1.0.36898e1 64-bit244550%
3/6
  25%
1/4
 
Eeyore 1.52 64-bit244542%
2.5/6
  0%
0/1
 
Taltos rev118 64-bit243650%
1/2
 12%
0.5/4
25%
0.5/2
 
PostModernist 1016241975%
4.5/6
56%
4.5/8
   
Nemeton 1.72418 50%
1.5/3
17%
5.5/32
  
RomiChess P3n 64-bit241725%
2.5/10
31%
2.5/8
   
Ifrit m1.8 64-bit241133%
2/6
  0%
0/1
 
Jonesy 1.0 64-bit241050%
2/4
 50%
4/8
  
Patzer 3.80240250%
1/2
75%
6/8
   
Popochin 4.1 64-bit23910%
0/4
 38%
1.5/4
  
Amateur 2.82238967%
4/6
25%
2/8
   
Galjoen 0.39 64-bit238738%
3/8
23%
2.5/11
   
Ares GB 64-bit238643%
18/42
28%
8.5/30
   
Jumbo 0.5.3 64-bit236967%
4/6
38%
3/8
  25%
1/4
Waxman 2017236944%
3.5/8
25%
0.5/2
 12%
0.5/4
 
Isa 2.0.64 64-bit235954%
6.5/12
27%
4/15
0%
0/4
 25%
1/4
Plisk 0.2.7d 64-bit235850%
3/6
44%
3.5/8
  12%
0.5/4
RomiChess P3m 64-bit235725%
1.5/6
   38%
1.5/4
Dirty 0.99z235358%
3.5/6
   25%
1/4
Popochin 4.0 64-bit2335   38%
1.5/4
38%
1.5/4
NameEloZevra
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
1.8.2
r612
64-bit
Amundsen 0.802328   44%
3.5/8
50%
2/4
FireFly 2.7.2 64-bit232745%
4.5/10
35%
3.5/10
50%
2/4
50%
4/8
19%
1.5/8
KnightX 1.93 64-bit232062%
2.5/4
 55%
5.5/10
  
EveAnn 1.72231958%
3.5/6
20%
3/15
62%
2.5/4
50%
2/4
44%
3.5/8
Gibbon 2.69a 64-bit2319   25%
2/8
38%
1.5/4
KnightX 1.922316   44%
3.5/8
50%
2/4
Asymptote 0.2.0 64-bit2314 25%
0.5/2
42%
2.5/6
  
Averno 0.81231275%
4.5/6
38%
12/32
 31%
2.5/8
62%
2.5/4
Ant 2006-F2303 50%
4/8
 31%
2.5/8
62%
2.5/4
RubiChess 0.7 64-bit230342%
2.5/6
12%
1/8
  50%
4/8
CT800 1.34 64-bit230269%
5.5/8
 35%
3.5/10
  
Natwarlal 0.142302   31%
2.5/8
25%
1/4
Anechka 0.082300   100%
1/1
25%
1/4
Fischerle 0.9.80 SE 64-bit2298   44%
3.5/8
62%
2.5/4
Absolute Zero 2.4.7.2 64-bit2294   38%
1.5/4
38%
1.5/4
Chaturanga 2.4.3229050%
3/6
62%
5/8
   
Invictus r228 64-bit229055%
5.5/10
75%
1.5/2
 25%
1.5/6
 
Matilde 2008 64-bit228983%
5/6
44%
3.5/8
   
AliChess 4.25228442%
2.5/6
69%
5.5/8
   
Kingfisher 1.0 64-bit228058%
3.5/6
100%
2/2
65%
6.5/10
  
NameEloZevra
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
1.8.2
r612
64-bit
Ayito 0.2.994226575%
4.5/6
38%
3/8
33%
4/12
 38%
1.5/4
CT800 1.30 64-bit225667%
4/6
  59%
9.5/16
 
RattateChess 1.0 Nosferatu225250%
3/6
55%
17.5/32
  50%
2/4
Exacto 0.e 64-bit225150%
3/6
44%
14/32
  62%
2.5/4
Beowulf 2.4a 64-bit224967%
4/6
   50%
2/4
Mango Paola Ajedrez 4.1224983%
5/6
56%
4.5/8
 44%
3.5/8
 
Weini 0.0.23 64-bit2241 67%
21.5/32
42%
17/40
  
Buzz 0.08 64-bit223392%
5.5/6
75%
6/8
  0%
0/4
Dolphin 1.0 64-bit2230100%
6/6
62%
20/32
50%
6/12
50%
4/8
50%
2/4
RamJet 0.13222975%
4.5/6
56%
4.5/8
 56%
4.5/8
38%
1.5/4
Tiny Chess 1.46 64-bit222585%
8.5/10
48%
15.5/32
50%
2/4
20%
2/10
 
Robocide 20170718 64-bit2221 69%
22/32
50%
2/4
62%
5/8
50%
2/4
Joker2 0.7.7 64-bit2220 0%
0/2
62%
2.5/4
64%
9/14
 
Uralochka 1.1b2218   100%
1/1
38%
1.5/4
CT800 1.12 64-bit2216 50%
4/8
 31%
2.5/8
56%
4.5/8
OBender 03.2016 64-bit221575%
4.5/6
66%
21/32
 38%
3/8
38%
1.5/4
Adam 3.32211   69%
5.5/8
75%
3/4
Betsabe II 1.09c2209   44%
3.5/8
75%
3/4
Neurosis 2.32209100%
6/6
   25%
1/4
Baislicka 1.0 64-bit2207  50%
2/4
50%
2/4
 
NameEloZevra
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
1.8.2
r612
64-bit
Latista (Sinobyl) 1.5220425%
1.5/6
  56%
4.5/8
38%
1.5/4
Dorpsgek Eve's Temptation 64-bit2201 66%
21/32
 50%
1/2
37%
18.5/50
Dorpsgek Dillinger 64-bit2195   38%
1.5/4
48%
11.5/24
GopherCheck 0.2.3 64-bit219175%
4.5/6
31%
2.5/8
 82%
11.5/14
62%
2.5/4
NagaSkaki 5.122186   56%
4.5/8
0%
0/4
BlackBishop 0.472181   75%
6/8
100%
2/2
Prophet 2.0 64-bit2180   44%
3.5/8
38%
1.5/4
Asymptote 0.1.8 64-bit217992%
5.5/6
44%
3.5/8
66%
26.5/40
  
Embla 2.0.0 64-bit217375%
27/36
   50%
5/10
Isa 1.9.51 64-bit2173   69%
5.5/8
50%
2/4
Clever Girl r185 64-bit2163   75%
1.5/2
50%
2/4
Chesley r323 64-bit216292%
5.5/6
  56%
4.5/8
 
Embla 1.0.2 64-bit2111   65%
6.5/10
44%
3.5/8
Hedgehog 1.82 64-bit2097   75%
1.5/2
88%
10.5/12
Detroid 0.9.0 64-bit2093 72%
21.5/30
82%
33/40
  
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



Alter output selection

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
Highlight diagonal of cells wide. (0 to highlight everything)

Reference rating list:
Recalibrate:
  No recalibration (reference and current list are compared as they are)
  Recalibrate reference list to current one using selected engines only
  Recalibrate reference list to current one using all common engines
  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 May 25, 2019