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 12 engines!
12 selected engines played 40 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+
1Fire 8 64-bit 8CPU3548+14−1440.0%+61.458.7%1447 
90.0%
 Fire 8.1 64-bit 8CPU3533+17−1745.4%+32.361.2%993
100.0%
 Fire 8.1 64-bit3442+17−1755.0%−29.053.5%1004
93.4%
 Fire 7.1 64-bit 4CPU3426+8−842.4%+50.551.2%5846
100.0%
 Fire 6.1 64-bit 4CPU3347+15−1544.9%+33.844.1%1568
89.3%
 Fire 5 64-bit 4CPU3334+15−1553.3%−18.151.4%1390
49.2%
 Fire 7.1 64-bit3334+8−849.3%+4.652.4%5634
100.0%
 Fire 6.1 64-bit3288+11−1150.0%−13.644.8%2726
100.0%
 Fire 4 64-bit 4CPU3255+10−1046.1%+24.749.7%3212
64.5%
 Fire 5 64-bit3252+15−1549.9%+0.237.1%1465
99.9%
 Fire 3.0 64-bit 4CPU3216+17−1743.7%+37.947.5%1126
99.1%
 Fire 4 64-bit3191+10−1053.3%−24.941.0%3415
 

Results matrix

Custom engine selection
#NameElo123456789101112
1Fire 8 64-bit 8CPU3548            
2Fire 8.1 64-bit 8CPU3533            
3Fire 8.1 64-bit3442            
4Fire 7.1 64-bit 4CPU3426            
5Fire 6.1 64-bit 4CPU3347            
6Fire 5 64-bit 4CPU3334            
7Fire 7.1 64-bit3334       25.5 − 14.5
+12−1=27
+30
    
8Fire 6.1 64-bit3288      14.5 − 25.5
+1−12=27
−30
     
9Fire 4 64-bit 4CPU3255            
10Fire 5 64-bit3252            
11Fire 3.0 64-bit 4CPU3216            
12Fire 4 64-bit3191            
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
#NameElo123456789101112
1Fire 8 64-bit 8CPU3548 90.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Fire 8.1 64-bit 8CPU353310.0 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Fire 8.1 64-bit34420.00.0 93.4100.0100.0100.0100.0100.0100.0100.0100.0
4Fire 7.1 64-bit 4CPU34260.00.06.6 100.0100.0100.0100.0100.0100.0100.0100.0
5Fire 6.1 64-bit 4CPU33470.00.00.00.0 89.393.0100.0100.0100.0100.0100.0
6Fire 5 64-bit 4CPU33340.00.00.00.010.7 49.2100.0100.0100.0100.0100.0
7Fire 7.1 64-bit33340.00.00.00.07.050.8 100.0100.0100.0100.0100.0
8Fire 6.1 64-bit32880.00.00.00.00.00.00.0 100.0100.0100.0100.0
9Fire 4 64-bit 4CPU32550.00.00.00.00.00.00.00.0 64.5100.0100.0
10Fire 5 64-bit32520.00.00.00.00.00.00.00.035.5 99.9100.0
11Fire 3.0 64-bit 4CPU32160.00.00.00.00.00.00.00.00.00.1 99.1
12Fire 4 64-bit31910.00.00.00.00.00.00.00.00.00.00.9 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo123456789101112
1Fire 8 64-bit 8CPU3548 16330830288214000000
2Fire 8.1 64-bit 8CPU35331633 0822264192000000
3Fire 8.1 64-bit344200 00016400000
4Fire 7.1 64-bit 4CPU34268308220 573376943034201260
5Fire 6.1 64-bit 4CPU33472882640573 93200257000
6Fire 5 64-bit 4CPU33342141920376932 102013290143113
7Fire 7.1 64-bit3334001649430102 241011910610700
8Fire 6.1 64-bit32880000002410 0191801384
9Fire 4 64-bit 4CPU325500034225713291190 0957308
10Fire 5 64-bit3252000000106119180 01265
11Fire 3.0 64-bit 4CPU32160001260143009570 0
12Fire 4 64-bit319100000113700138430812650 
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
#NameElo123456789101112
1Fire 8 64-bit 8CPU3548 66.90.011.49.67.50.00.00.00.00.00.0
2Fire 8.1 64-bit 8CPU353366.9 0.012.010.38.10.00.00.00.00.00.0
3Fire 8.1 64-bit34420.00.0 0.00.00.02.50.00.00.00.00.0
4Fire 7.1 64-bit 4CPU342611.412.00.0 7.75.28.20.03.80.01.80.0
5Fire 6.1 64-bit 4CPU33479.610.30.07.7 31.50.00.05.40.00.00.0
6Fire 5 64-bit 4CPU33347.58.10.05.231.5 1.50.028.90.05.72.4
7Fire 7.1 64-bit33340.00.02.58.20.01.5 28.81.314.90.07.7
8Fire 6.1 64-bit32880.00.00.00.00.00.028.8 0.045.80.022.5
9Fire 4 64-bit 4CPU32550.00.00.03.85.428.91.30.0 0.022.14.6
10Fire 5 64-bit32520.00.00.00.00.00.014.945.80.0 0.025.9
11Fire 3.0 64-bit 4CPU32160.00.00.01.80.05.70.00.022.10.0 0.0
12Fire 4 64-bit31910.00.00.00.00.02.47.722.54.625.90.0 
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 79 common opponents

Custom engine selection
NameEloFire
8
64-bit
8CPU
Fire
8.1
64-bit
8CPU
Fire
8.1
64-bit
Fire
7.1
64-bit
4CPU
Fire
6.1
64-bit
4CPU
Fire
5
64-bit
4CPU
Fire
7.1
64-bit
Fire
6.1
64-bit
Fire
4
64-bit
4CPU
Fire
5
64-bit
Fire
3.0
64-bit
4CPU
Fire
4
64-bit
Fat Fritz 2 (in SF) 64-bit 8CPU372122%
21/95
16%
14.5/88
 8%
7.5/100
        
Stockfish 13 64-bit 8CPU372120%
18.5/94
18%
16/90
 9%
8/92
        
Dragon by Komodo 64-bit 8CPU367928%
26/94
27%
24/90
          
Stockfish 12 64-bit3634   23%
9.5/42
  7%
7/100
     
Leelenstein 11.1 RTX2080362737%
35/94
  19%
11/58
        
Allie 0.5 nn49921 RTX2080356148%
45.5/94
  31%
18.5/59
        
Nemorino 6.00 64-bit 8CPU355152%
48.5/94
48%
42.5/89
          
Igel 3.0.0 64-bit 8CPU354551%
51/100
46%
40.5/88
          
Stockfish 9 64-bit 4CPU3545   40%
16/40
21%
17.5/82
       
Ethereal 12.75 64-bit 8CPU354152%
49/94
49%
43/88
          
SlowChess Blitz 2.5 64-bit 8CPU354152%
48.5/94
53%
47/88
 34%
17/50
        
Houdini 6 64-bit 4CPU351654%
59/110
52%
45.5/88
  15%
27/178
23%
24/104
      
RubiChess 2.0 NN-375bd 64-bit 8CPU3508 61%
54/88
 39%
16.5/42
        
Lc0 0.21.1 JH.T6.532 GTX10503492   42%
42/100
  27%
27/100
     
Stockfish 8 64-bit 4CPU3492    23%
20.5/89
25%
13/52
  21%
16/76
   
Komodo 12 64-bit 4CPU3487   41%
17/41
28%
26.5/96
       
Stockfish 9 64-bit3482      30%
28/94
20%
39.5/200
    
Lc0 0.21.1 w41800 GTX10503473   36%
36.5/100
  32%
31.5/100
     
SugaR XPrO 1.4 64-bit3471      28%
11/40
21%
10.5/50
    
Booot 6.5 64-bit 8CPU345969%
43.5/63
67%
58/86
          
NameEloFire
8
64-bit
8CPU
Fire
8.1
64-bit
8CPU
Fire
8.1
64-bit
Fire
7.1
64-bit
4CPU
Fire
6.1
64-bit
4CPU
Fire
5
64-bit
4CPU
Fire
7.1
64-bit
Fire
6.1
64-bit
Fire
4
64-bit
4CPU
Fire
5
64-bit
Fire
3.0
64-bit
4CPU
Fire
4
64-bit
Xiphos 0.6 64-bit 8CPU3455 60%
66/110
 50%
39/78
        
Lc0 0.20.2 w32930 GTX10503451   46%
45.5/100
  38%
38/100
     
Allie 0.5 nn42482 GTX10503445   47%
26.5/56
  40%
28/70
     
Houdini 6 64-bit3443      31%
30.5/97
22%
42/191
 22%
21.5/100
  
Houdini 5.01 64-bit3421         17%
8.5/50
 17%
11/64
Komodo 11.2 64-bit3421      37%
34/93
31%
59.5/190
 20%
30.5/150
  
Stockfish 8 64-bit3421       29%
54/189
 20%
10/50
 16%
13.5/85
Komodo 12 64-bit3411      38%
136.5/357
0%
0/1
    
Komodo 10.3 64-bit3386         24%
12/50
 22%
14/64
Stockfish 5 64-bit 4CPU3366        22%
4/18
 27%
35/129
 
Komodo 8 64-bit 4CPU3352        30%
29.5/98
 26%
25.5/100
 
Fizbo 2 64-bit 4CPU3343   59%
24/41
60%
59.5/99
       
Xiphos 0.6 64-bit3341  72%
71.5/100
   51%
32.5/64
     
Houdini 4 64-bit 4CPU3331        32%
31.5/98
 19%
12.5/66
 
Deep Shredder 13 64-bit 4CPU3322    45%
18/40
54%
28/52
  43%
22.5/52
   
Fizbo 1.9 64-bit 4CPU3318    60%
52.5/88
47%
24.5/52
      
Stockfish 6 64-bit3317        38%
12/32
  19%
17.5/92
Stoofvlees II a10 GTX980Ti3316   72%
36/50
  45%
18.5/41
     
Andscacs 0.91 64-bit 4CPU3274    66%
51.5/78
59%
35.5/60
      
Shredder 13 64-bit3270      60%
55.5/93
55%
50/91
   41%
26/64
NameEloFire
8
64-bit
8CPU
Fire
8.1
64-bit
8CPU
Fire
8.1
64-bit
Fire
7.1
64-bit
4CPU
Fire
6.1
64-bit
4CPU
Fire
5
64-bit
4CPU
Fire
7.1
64-bit
Fire
6.1
64-bit
Fire
4
64-bit
4CPU
Fire
5
64-bit
Fire
3.0
64-bit
4CPU
Fire
4
64-bit
Gull 3 64-bit 4CPU3259     66%
34.5/52
  43%
41.5/96
   
Equinox 3.30 64-bit 4CPU3251   80%
33.5/42
 58%
30/52
  50%
50/100
   
Fizbo 2 64-bit3248      63%
26/41
56%
28.5/51
    
Fizbo 1.8 64-bit 4CPU3246     67%
35/52
  61%
31.5/52
   
Chiron 4 64-bit 4CPU3242   71%
30/42
72%
62.5/87
69%
36/52
      
Fizbo 1.9 64-bit3236       59%
119/201
 64%
48/75
 50%
49.5/99
Komodo 8 64-bit3235        41%
13/32
  48%
24/50
Critter 1.6a 64-bit 4CPU3232   87%
36.5/42
 67%
35/52
  47%
37.5/80
 43%
39.5/91
 
Fritz 15 64-bit 4CPU3223     70%
36.5/52
  48%
33.5/70
   
Hannibal 1.7 64-bit 4CPU3223   83%
35/42
 67%
35/52
  52%
27/52
   
NirvanaChess 2.4 64-bit 4CPU3221   89%
36.5/41
66%
26.5/40
       
NirvanaChess 2.3 64-bit 4CPU3210     72%
37.5/52
  62%
31/50
   
Rybka 4.1 64-bit 4CPU3206        56%
45/80
 61%
48.5/80
 
Andscacs 0.93 64-bit3203      69%
27.5/40
67%
64/95
    
Andscacs 0.92 64-bit3201       63%
76/120
 64%
38.5/60
  
Andscacs 0.921 64-bit3201      64%
34.5/54
68%
67.5/100
    
Gull 3 64-bit3191      78%
31/40
58%
18.5/32
 56%
28/50
 50%
24/48
Booot 6.1 64-bit 4CPU3187     74%
38.5/52
  60%
24/40
   
Booot 6.2 64-bit3168      79%
31.5/40
67%
147/218
 57%
28.5/50
  
Chiron 4 64-bit3164      75%
30/40
71%
44/62
 73%
36/49
 58%
37/64
NameEloFire
8
64-bit
8CPU
Fire
8.1
64-bit
8CPU
Fire
8.1
64-bit
Fire
7.1
64-bit
4CPU
Fire
6.1
64-bit
4CPU
Fire
5
64-bit
4CPU
Fire
7.1
64-bit
Fire
6.1
64-bit
Fire
4
64-bit
4CPU
Fire
5
64-bit
Fire
3.0
64-bit
4CPU
Fire
4
64-bit
Equinox 3.30 64-bit3161       66%
19/29
   36%
37.5/104
Critter 1.6a 64-bit3156      76%
30.5/40
69%
22/32
   52%
26/50
Fritz 15 64-bit3146       83%
26.5/32
   63%
40.5/64
Fritz 16 64-bit3141      81%
32.5/40
72%
43.5/60
    
Strelka 5.5 64-bit3140     87%
54/62
80%
32/40
 65%
51.5/79
  48%
24.5/51
NirvanaChess 2.4 64-bit3132      83%
35/42
79%
22/28
 71%
35/49
  
Hannibal 1.4b 64-bit 4CPU3118        70%
70.5/100
 69%
67.5/98
 
Texel 1.07 64-bit3114      86%
34.5/40
76%
25/33
 73%
23.5/32
  
Rybka 4.1 64-bit3111      50%
1/2
  67%
33.5/50
 63%
31.5/50
Hannibal 1.7 64-bit3110      87%
35.5/41
71%
23.5/33
 79%
39.5/50
 70%
22.5/32
NirvanaChess 2.3 64-bit3098         76%
35.5/47
 62%
12.5/20
Laser 1.5 64-bit3096      80%
32/40
79%
27/34
    
Texel 1.06 64-bit3095         66%
33/50
 61%
30.5/50
Protector 1.9.0 64-bit3088      86%
34.5/40
83%
27.5/33
 83%
40.5/49
 64%
29/45
iCE 3.0 64-bit3081      50%
0.5/1
86%
27.5/32
 74%
37/50
 68%
21/31
Bouquet 1.8 64-bit 4CPU3072        78%
39/50
 62%
2.5/4
 
Defenchess 1.1f 64-bit3048      50%
0.5/1
83%
5/6
    
Bobcat 8.0 64-bit2961      50%
0.5/1
100%
1/1
    
Spark 1.0 64-bit2926      100%
1/1
    83%
26.5/32
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%

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