CCRL Blitz
Downloads and Statistics
April 10, 2021
Testing summary:
Total: 2'502'969 games
played by 2'977 programs

White wins: 962'290 (38.4%)
Black wins: 770'705 (30.8%)
Draws: 769'974 (30.8%)
White score: 53.8%

Custom engine selection

Comparing 11 engines!
11 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 April 10, 2021 with Bayeselo based on 2'502'969 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+
 K2 0.99 64-bit2804+123−10581.8%−223.024.2%33 
80.6%
1K2 0.992752+19−1949.4%+3.328.0%1008
100.0%
 K2 0.952674+24−2455.4%−39.322.8%644
100.0%
 K2 0.912590+14−1449.7%+2.431.0%1721
62.9%
 K2 0.872586+17−1749.3%+4.928.4%1208
98.7%
 K2 0.832560+16−1650.6%−5.426.4%1358
100.0%
 K2 0.792503+20−2053.2%−25.025.8%925
100.0%
 K2 0.712384+18−1854.7%−37.321.6%1213
100.0%
 K2 0.572179+18−1852.8%−24.920.7%1159
100.0%
 K2 0.43f2129+18−1850.0%+1.219.3%1122
100.0%
 K2 0.351972+34−3445.0%+44.620.5%317
 

Results matrix

Custom engine selection
#NameElo1234567891011
1K2 0.99 64-bit2804           
2K2 0.992752           
3K2 0.952674           
4K2 0.912590           
5K2 0.872586           
6K2 0.832560           
7K2 0.792503           
8K2 0.712384           
9K2 0.572179           
10K2 0.43f2129           
11K2 0.351972           
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
#NameElo1234567891011
1K2 0.99 64-bit2804 80.698.4100.0100.0100.0100.0100.0100.0100.0100.0
2K2 0.99275219.4 100.0100.0100.0100.0100.0100.0100.0100.0100.0
3K2 0.9526741.60.0 100.0100.0100.0100.0100.0100.0100.0100.0
4K2 0.9125900.00.00.0 62.999.7100.0100.0100.0100.0100.0
5K2 0.8725860.00.00.037.1 98.7100.0100.0100.0100.0100.0
6K2 0.8325600.00.00.00.31.3 100.0100.0100.0100.0100.0
7K2 0.7925030.00.00.00.00.00.0 100.0100.0100.0100.0
8K2 0.7123840.00.00.00.00.00.00.0 100.0100.0100.0
9K2 0.5721790.00.00.00.00.00.00.00.0 100.0100.0
10K2 0.43f21290.00.00.00.00.00.00.00.00.0 100.0
11K2 0.3519720.00.00.00.00.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo1234567891011
1K2 0.99 64-bit2804 0000000000
2K2 0.9927520 76912000000
3K2 0.952674076 79828744700000
4K2 0.91259009798 14341036739000
5K2 0.8725860122871434 8961173003
6K2 0.832560004471036896 7180000
7K2 0.79250300073117718 509000
8K2 0.712384000930509 6923810
9K2 0.5721790000000692 145660
10K2 0.43f212900000003811456 267
11K2 0.3519720000300060267 
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
#NameElo1234567891011
1K2 0.99 64-bit2804 0.00.00.00.00.00.00.00.00.00.0
2K2 0.9927520.0 4.60.30.50.00.00.00.00.00.0
3K2 0.9526740.04.6 33.715.522.30.00.00.00.00.0
4K2 0.9125900.00.333.7 49.033.62.80.30.00.00.0
5K2 0.8725860.00.515.549.0 34.95.50.10.00.00.2
6K2 0.8325600.00.022.333.634.9 31.40.00.00.00.0
7K2 0.7925030.00.00.02.85.531.4 23.80.00.00.0
8K2 0.7123840.00.00.00.30.10.023.8 29.216.30.0
9K2 0.5721790.00.00.00.00.00.00.029.2 63.84.1
10K2 0.43f21290.00.00.00.00.00.00.016.363.8 18.6
11K2 0.3519720.00.00.00.00.20.00.00.04.118.6 
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 107 common opponents

Custom engine selection
NameEloK2
0.99
64-bit
K2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.79
K2
0.71
K2
0.57
K2
0.43f
K2
0.35
Gaviota 1.0 64-bit2871 28%
9/32
 50%
0.5/1
       
Mr Bob 0.9.0 64-bit2845 34%
10.5/31
12%
0.5/4
        
Rhetoric 1.4.3 64-bit2808 34%
10.5/31
  0%
0/1
      
Chessmaster 11 Paralyse2689   50%
1/2
0%
0/3
      
ECE 20.1 64-bit2685 50%
16/32
55%
17.5/32
        
Delfi 5.42683 55%
17.5/32
  0%
0/1
      
Djinn 1.021 64-bit2674 56%
18/32
  50%
0.5/1
      
RedQueen 1.1.98 64-bit2669 62%
20/32
 100%
1/1
100%
1/1
      
Gandalf 7 64-bit2665 72%
23/32
 50%
0.5/1
       
Nebula 2.0 64-bit2655   0%
0/1
50%
0.5/1
      
Donna 4.0 64-bit2651   50%
0.5/1
50%
1/2
      
WildCat 82624   37%
22.5/61
0%
0/1
      
Movei 00.8.438 (10 10 10)2622   44%
26.5/60
35%
10.5/30
      
Zarkov 6.552620   51%
30.5/60
55%
17.5/32
45%
9/20
     
GreKo 2016 64-bit2619    50%
15.5/31
40%
12.5/31
     
Philou 3.7.1 64-bit2619   45%
14.5/32
42%
12.5/30
      
tomitankChess 2.0 64-bit2616   45%
14.5/32
39%
12.5/32
      
Slow Chess Blitz WV2.12615   41%
13/32
100%
1/1
      
Glass 2.0 64-bit2614  50%
16/32
47%
43.5/93
 42%
13.5/32
     
Delocto 0.6 64-bit2612  45%
14.5/32
40%
24.5/61
35%
11/31
      
NameEloK2
0.99
64-bit
K2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.79
K2
0.71
K2
0.57
K2
0.43f
K2
0.35
Coiled 0.5 64-bit2611   47%
15/32
37%
11.5/31
      
Jellyfish 1.1 64-bit2611  47%
15/32
59%
19/32
0%
0/1
      
NoraGrace 2.0 64-bit2610   55%
18/33
38%
12/32
      
Ruffian 2.1.02610  53%
17/32
53%
17/32
       
GarboChess 2.20 64-bit2607  48%
15.5/32
45%
14.5/32
       
Amyan 1.722604  61%
19.5/32
48%
44/92
 28%
9/32
     
Pharaon 3.5.12603  64%
20.5/32
38%
12/32
0%
0/1
34%
11/32
     
Monolith 0.4 64-bit2602   41%
37.5/91
53%
33/62
      
DanaSah 7.02599   47%
15/32
47%
42/90
      
N2 0.4 64-bit2591    100%
1/1
     5%
0.5/10
Floyd 0.9 64-bit2587  66%
21/32
45%
15/33
55%
17/31
66%
20.5/31
     
Francesca MAD 0.192581   61%
19/31
52%
31.5/60
53%
17/32
     
Hamsters 0.7.12579  73%
23.5/32
50%
16/32
 59%
19/32
     
Zurichess Glarus 64-bit2579     47%
14.5/31
39%
12.5/32
    
DanaSah 6.502578    55%
17/31
55%
17.5/32
     
Muse 0.953 64-bit2578  69%
22/32
47%
15.5/33
53%
32/60
50%
16/32
     
Maverick 1.5 64-bit2572   58%
18/31
44%
13.5/31
48%
15.5/32
     
SOS 5.12572  73%
23.5/32
48%
15/31
63%
19.5/31
42%
13.5/32
     
Aristarch 4.502568   59%
19/32
56%
19/34
55%
17.5/32
     
Petir 4.392565   56%
17.5/31
 52%
16.5/32
     
NameEloK2
0.99
64-bit
K2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.79
K2
0.71
K2
0.57
K2
0.43f
K2
0.35
nanoSzachy 4.1 64-bit2561   66%
21/32
47%
8/17
42%
13.5/32
     
Brutus 8.05 64-bit2560   52%
17/33
0%
0/1
45%
14.5/32
34%
6.5/19
    
Marvin 2.1.0 64-bit2556    58%
17.5/30
38%
12/32
     
Ghost 3.1 64-bit2545   70%
22.5/32
43%
13/30
59%
19/32
     
Ufim 8.022541    50%
1.5/3
47%
15/32
36%
11.5/32
    
Fridolin 2.00 64-bit2538    25%
0.5/2
50%
16/32
56%
17.5/31
    
AnMon 5.752537   0%
0/1
58%
18/31
45%
14.5/32
44%
14/32
    
Capivara LK 0.09b02g 64-bit2536   58%
19/33
60%
18/30
      
Hayabusa 0.11.7 64-bit2535   100%
1/1
100%
1/1
      
DanaSah 4.882533     59%
19/32
60%
18.5/31
    
Hermann 2.8 64-bit2531   100%
1/1
75%
3/4
60%
38.5/64
48%
15.5/32
    
JikChess 0.02 64-bit2522    100%
1/1
 38%
12/32
    
Green Light Chess 3.01.2.22505   100%
1/1
100%
1/1
53%
17/32
47%
15/32
    
Little Goliath Evolution 3.122503   100%
1/1
50%
0.5/1
58%
18.5/32
52%
16/31
    
Yace 0.99.872503   0%
0/1
 53%
17/32
45%
14/31
    
Trace 1.37a2499   100%
1/1
100%
2/2
69%
22/32
44%
14/32
    
Gothmog 1.0b102483   50%
1/2
100%
1/1
      
Mephisto Gideon Professional2472      45%
14.5/32
36%
10/28
   
Cerebro 3.03d2470      59%
13/22
30%
8.5/28
   
Dorky 4.3 64-bit2466      44%
14/32
39%
10.5/27
   
NameEloK2
0.99
64-bit
K2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.79
K2
0.71
K2
0.57
K2
0.43f
K2
0.35
Carballo 1.3 64-bit2454      61%
19.5/32
34%
11/32
   
LittleThought 1.052 64-bit2453      56%
18/32
45%
13/29
   
Counter 1.22446      41%
13/32
37%
11/30
   
LambChop 10.992432   50%
0.5/1
   38%
11/29
   
Dragon 4.62417    0%
0/1
  45%
13.5/30
   
RomiChess P3L 64-bit2411      68%
15/22
50%
15.5/31
   
Giraffe 20150908 64-bit2409      61%
14/23
59%
19/32
   
Simplex 0.9.8 64-bit2407   50%
0.5/1
  64%
14/22
50%
11.5/23
   
Ifrit m1.8 64-bit2405    75%
1.5/2
 57%
13/23
    
Amy 0.87b2383    50%
0.5/1
 83%
19/23
    
Gibbon 2.69a 64-bit2319   100%
1/1
   41%
13/32
   
Absolute Zero 2.4.0.0 64-bit2259       66%
21/32
40%
12.5/31
  
Anechka 0.082233       69%
22/32
47%
14/30
36%
11.5/32
 
Ant 2006-F2230       62%
20/32
62%
18.5/30
  
AliChess 4.252227       70%
22.5/32
37%
11.5/31
40%
12.5/31
 
Fischerle 0.9.60 64-bit2225       72%
23/32
44%
14/32
  
Adam 3.32220       73%
23.5/32
26%
8/31
28%
9/32
 
OBender 3.2.x2220       83%
26.5/32
55%
17/31
23%
7.5/32
 
FireFly 2.7.0 64-bit2207       72%
23/32
56%
17.5/31
33%
10.5/32
 
Chispa 4.0.32206       61%
19.5/32
32%
10/31
37%
11/30
 
NameEloK2
0.99
64-bit
K2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.79
K2
0.71
K2
0.57
K2
0.43f
K2
0.35
Orion 0.2 64-bit2206       83%
26.5/32
41%
13/32
  
CyberPagno 2.12205        44%
14/32
44%
13.5/31
 
Beowulf 2.4a 32-bit2204        48%
15.5/32
37%
11.5/31
 
RattateChess 1.0 Nosferatu2199       70%
22.5/32
48%
14.5/30
  
Shallow 1.0 64-bit2191        56%
18/32
31%
10/32
 
Uralochka 1.1b2188        39%
12.5/32
44%
13.5/31
 
Mango Paola Ajedrez 1.02186        63%
19.5/31
58%
18/31
 
Atak 6.82184        56%
17.5/31
53%
17/32
 
Protej 0.5.8c2184        48%
15/31
38%
11.5/30
 
Madeleine 0.22183        42%
13.5/32
50%
15/30
 
Genesis 2.02169        43%
13/30
32%
10/31
 
InmiChess3.06N2161        47%
14/30
38%
11.5/30
 
BlackBishop 1.02155        53%
15.5/29
39%
12/31
 
Orion 0.1 64-bit2154        56%
17.5/31
65%
6.5/10
 
Alarm 0.93.12143        47%
14.5/31
50%
15.5/31
 
Lime 662142        52%
16/31
33%
10.5/32
 
NG-Play 9.84 64-bit2118        61%
19/31
52%
15/29
 
Napoleon 1.5.0 64-bit2080        53%
16/30
67%
21.5/32
 
ChessMind 0.822057        58%
17.5/30
53%
16.5/31
65%
6.5/10
Matheus 2.32057        73%
22.5/31
65%
20/31
35%
3.5/10
NameEloK2
0.99
64-bit
K2
0.99
K2
0.95
K2
0.91
K2
0.87
K2
0.83
K2
0.79
K2
0.71
K2
0.57
K2
0.43f
K2
0.35
MadChess 1.2 64-bit2049         64%
20.5/32
20%
2/10
Gerbil 0.2 64-bit2044         79%
24.5/31
30%
3/10
Vice 1.0 64-bit2043         58%
18/31
30%
3/10
Bestia 0.902018         73%
23.5/32
45%
4.5/10
Small Potato 0.6.11992         74%
23/31
35%
3.5/10
BigLion 2.23x1986         72%
23/32
45%
4.5/10
Armageddon 2.3081985         66%
21/32
33%
3/9
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 April 10, 2021