CCRL Blitz
Downloads and Statistics
May 15, 2021
Testing summary:
Total: 2'526'227 games
played by 3'011 programs

White wins: 970'445 (38.4%)
Black wins: 776'698 (30.7%)
Draws: 779'084 (30.8%)
White score: 53.8%

Custom engine selection

Comparing 7 engines!
7 selected engines played 0 games with each other

CCRL Blitz Rating List — Custom engine selection (Quote)

Ponder off, General book up to 12 moves, up to 6 piece EGTB
Time control: From Jan 2020, equivalent to 2'+1" on an Intel i7-4770K. See the "About" page.
Computed on May 15, 2021 with Bayeselo based on 2'526'227 games
Please refer to the "about" page for comments on engine inclusion

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+
1Isa 2.0.64 64-bit2314+16−1649.9%+0.620.7%1484 
52.7%
 Isa 2.0.83 64-bit2313+26−2650.4%−3.622.9%511
100.0%
 Isa 2.0.61 64-bit2237+18−1851.5%−11.423.0%1192
99.9%
 Isa 2.0.45 64-bit2193+22−2255.0%−37.620.2%793
86.1%
 Isa 2.0.48 64-bit2176+21−2146.5%+25.222.5%790
100.0%
 Isa 1.9.51 64-bit2122+19−2045.9%+29.420.0%984
81.5%
 Isa 1.9.63 64-bit2109+20−2146.3%+27.218.7%888
 

Results matrix

Custom engine selection
#NameElo1234567
1Isa 2.0.64 64-bit2314       
2Isa 2.0.83 64-bit2313       
3Isa 2.0.61 64-bit2237       
4Isa 2.0.45 64-bit2193       
5Isa 2.0.48 64-bit2176       
6Isa 1.9.51 64-bit2122       
7Isa 1.9.63 64-bit2109       
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
#NameElo1234567
1Isa 2.0.64 64-bit2314 52.7100.0100.0100.0100.0100.0
2Isa 2.0.83 64-bit231347.3 100.0100.0100.0100.0100.0
3Isa 2.0.61 64-bit22370.00.0 99.9100.0100.0100.0
4Isa 2.0.45 64-bit21930.00.00.1 86.1100.0100.0
5Isa 2.0.48 64-bit21760.00.00.013.9 100.0100.0
6Isa 1.9.51 64-bit21220.00.00.00.00.0 81.5
7Isa 1.9.63 64-bit21090.00.00.00.00.018.5 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo1234567
1Isa 2.0.64 64-bit2314 42356370861812
2Isa 2.0.83 64-bit2313423 00600
3Isa 2.0.61 64-bit22375630 1721088720112
4Isa 2.0.45 64-bit2193700172 20511031230
5Isa 2.0.48 64-bit21768661088205 885185
6Isa 1.9.51 64-bit21221807201103885 971
7Isa 1.9.63 64-bit21091201121230185971 
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
#NameElo1234567
1Isa 2.0.64 64-bit2314 21.221.03.13.80.70.5
2Isa 2.0.83 64-bit231321.2 0.00.00.50.00.0
3Isa 2.0.61 64-bit223721.00.0 8.754.933.15.4
4Isa 2.0.45 64-bit21933.10.08.7 13.062.173.2
5Isa 2.0.48 64-bit21763.80.554.913.0 49.911.0
6Isa 1.9.51 64-bit21220.70.033.162.149.9 51.9
7Isa 1.9.63 64-bit21090.50.05.473.211.051.9 
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 57 common opponents

Custom engine selection
NameEloIsa
2.0.64
64-bit
Isa
2.0.83
64-bit
Isa
2.0.61
64-bit
Isa
2.0.45
64-bit
Isa
2.0.48
64-bit
Isa
1.9.51
64-bit
Isa
1.9.63
64-bit
Sorgenkind 0.4232743%
9/21
57%
17/30
     
Sage 3.53232452%
11/21
54%
19.5/36
     
Chezzz 1.0.3232162%
12.5/20
45%
16.5/37
     
Gibbon 2.69a 64-bit232059%
13/22
40%
13.5/34
     
Mediocre 0.5 64-bit231985%
8.5/10
53%
18/34
     
Aice 0.99.2231755%
43/78
39%
13.5/35
     
Sungorus 1.4 64-bit231025%
0.5/2
57%
20.5/36
  50%
0.5/1
  
Kingfisher 1.0 64-bit230457%
17/30
 50%
16/32
    
Zevra 1.8.6 r672 64-bit230152%
10.5/20
 45%
14.5/32
    
Thor's Hammer 2.29 64-bit229446%
13/28
58%
19/33
  50%
0.5/1
  
Esc 1.16226758%
17.5/30
   0%
0/1
  
Scidlet 3.61 64-bit2265100%
1/1
   100%
1/1
  
Natwarlal 0.14226063%
19/30
 47%
15/32
    
Napoleon 1.8 64-bit22530%
0/1
 52%
15.5/30
38%
8/21
   
FireFly 2.7.2 64-bit225160%
18/30
 42%
14/33
    
Robocide 20170718 64-bit223567%
20/30
 44%
14/32
52%
13/25
   
Anechka 0.08223468%
20.5/30
 44%
14/32
    
GopherCheck 0.2.3 64-bit223352%
15.5/30
 48%
14/29
 37%
11/30
  
Ant 2006-F223043%
13/30
 56%
18/32
    
AliChess 4.25222758%
17.5/30
 53%
15.5/29
    
NameEloIsa
2.0.64
64-bit
Isa
2.0.83
64-bit
Isa
2.0.61
64-bit
Isa
2.0.45
64-bit
Isa
2.0.48
64-bit
Isa
1.9.51
64-bit
Isa
1.9.63
64-bit
Adam 3.32220  62%
20/32
 37%
11/30
  
RamJet 0.132212  64%
18.5/29
 52%
15.5/30
31%
10/32
 
Buzz 0.08 64-bit2210  55%
17.5/32
 50%
15/30
41%
13/32
 
FireFly 2.7.0 64-bit2208    38%
10/26
31%
10/32
 
ChessAlex 2.0r422070%
0/1
 55%
16/29
 42%
12.5/30
  
Chispa 4.0.32206  55%
33.5/61
 41%
12/29
50%
16/32
 
Beowulf 2.4a 32-bit2204  50%
31/62
 43%
23/53
47%
15/32
 
RattateChess 1.0 Nosferatu22000%
0/1
 51%
31.5/62
 51%
28.5/56
44%
14/32
 
Latista (Sinobyl) 1.52195  40%
12/30
 42%
22/53
  
NG-Play 9.86 64-bit2195  40%
10.5/26
   39%
12.5/32
Uralochka 1.1b2189  58%
18.5/32
 50%
28/56
55%
17.5/32
 
Mango Paola Ajedrez 1.02187100%
2/2
 47%
13.5/29
39%
12.5/32
48%
14.5/30
41%
13/32
48%
10.5/22
Atak 6.821850%
0/1
 62%
38/61
 58%
32.5/56
31%
10/32
 
Protej 0.5.8c2185   56%
18/32
45%
21/47
34%
10.5/31
35%
8.5/24
Madeleine 0.22183  60%
36.5/61
 46%
26/57
59%
19/32
 
Genesis 2.02170   50%
16/32
 48%
15.5/32
65%
17/26
Blitzkrieg rev337 64-bit2162100%
1/1
  79%
22/28
 48%
14.5/30
40%
21/52
Dorpsgek Cosmopolitan 2 64-bit2160   73%
23.5/32
48%
14/29
41%
13/32
47%
14/30
BlackBishop 1.02155   67%
21.5/32
 55%
17.5/32
42%
12.5/30
NagaSkaki 5.122155100%
1/1
  61%
19.5/32
 41%
13/32
46%
11.5/25
NameEloIsa
2.0.64
64-bit
Isa
2.0.83
64-bit
Isa
2.0.61
64-bit
Isa
2.0.45
64-bit
Isa
2.0.48
64-bit
Isa
1.9.51
64-bit
Isa
1.9.63
64-bit
Chesley r323 64-bit2148   46%
13/28
  41%
23.5/58
Alarm 0.93.12143   46%
13/28
100%
1/1
39%
12.5/32
44%
12/27
Lime 662143   61%
17/28
 48%
15.5/32
60%
12/20
ChessKISS 1.7c 64-bit2139   70%
19.5/28
 48%
15.5/32
36%
20/56
Fortress 1.622137   52%
14/27
 41%
13/32
30%
16.5/55
GopherCheck 0.2.2 64-bit2135   61%
19.5/32
  44%
14/32
Nesik 0.7.0 alpha2133   58%
15/26
 44%
14/32
47%
27.5/58
WJChess 1.642130   41%
11/27
 42%
11/26
46%
26/56
Alf 1.09 64-bit2110  0%
0/1
48%
13/27
 41%
13/32
49%
27/55
GK 0.90 64-bit2110   52%
14.5/28
  49%
27/55
BikJump 2.01 64-bit2102   59%
16.5/28
 59%
19/32
 
Napoleon 1.7 64-bit2102   56%
17.5/31
  68%
21/31
Wing 2.0a2100   59%
19/32
 50%
16/32
 
Clarabit 1.00 64-bit2096   59%
16.5/28
 56%
18/32
 
Alcibiades 0.2.7 64-bit2065   80%
25.5/32
 58%
21.5/37
 
Bubble 1.51987100%
1/1
 0%
0/1
    
Smash 1.0.31924  100%
1/1
 100%
1/1
  
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 15, 2021