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 10 engines!
10 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 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+
1Fire 8 64-bit 8CPU3549+15−1540.4%+59.759.2%1247 
100.0%
 Fire 7.1 64-bit 4CPU3426+8−842.4%+50.551.2%5846
100.0%
 Fire 6.1 64-bit 4CPU3347+15−1444.9%+34.044.1%1568
89.6%
 Fire 5 64-bit 4CPU3334+15−1553.3%−18.251.4%1390
50.3%
 Fire 7.1 64-bit3334+8−849.3%+4.152.4%5634
100.0%
 Fire 6.1 64-bit3288+11−1150.0%−13.944.8%2726
100.0%
 Fire 4 64-bit 4CPU3255+10−1046.1%+24.549.7%3212
65.2%
 Fire 5 64-bit3251+15−1549.9%+1.037.1%1465
99.9%
 Fire 3.0 64-bit 4CPU3215+17−1743.7%+38.747.5%1126
99.1%
 Fire 4 64-bit3191+10−1053.3%−25.341.0%3415
 

Results matrix

Custom engine selection
#NameElo12345678910
1Fire 8 64-bit 8CPU3549          
2Fire 7.1 64-bit 4CPU3426          
3Fire 6.1 64-bit 4CPU3347          
4Fire 5 64-bit 4CPU3334          
5Fire 7.1 64-bit3334     25.5 − 14.5
+12−1=27
+30
    
6Fire 6.1 64-bit3288    14.5 − 25.5
+1−12=27
−30
     
7Fire 4 64-bit 4CPU3255          
8Fire 5 64-bit3251          
9Fire 3.0 64-bit 4CPU3215          
10Fire 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
#NameElo12345678910
1Fire 8 64-bit 8CPU3549 100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Fire 7.1 64-bit 4CPU34260.0 100.0100.0100.0100.0100.0100.0100.0100.0
3Fire 6.1 64-bit 4CPU33470.00.0 89.693.6100.0100.0100.0100.0100.0
4Fire 5 64-bit 4CPU33340.00.010.4 50.3100.0100.0100.0100.0100.0
5Fire 7.1 64-bit33340.00.06.449.7 100.0100.0100.0100.0100.0
6Fire 6.1 64-bit32880.00.00.00.00.0 100.0100.0100.0100.0
7Fire 4 64-bit 4CPU32550.00.00.00.00.00.0 65.2100.0100.0
8Fire 5 64-bit32510.00.00.00.00.00.034.8 99.9100.0
9Fire 3.0 64-bit 4CPU32150.00.00.00.00.00.00.00.1 99.1
10Fire 4 64-bit31910.00.00.00.00.00.00.00.00.9 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo12345678910
1Fire 8 64-bit 8CPU3549 830288214000000
2Fire 7.1 64-bit 4CPU3426830 573376943034201260
3Fire 6.1 64-bit 4CPU3347288573 93200257000
4Fire 5 64-bit 4CPU3334214376932 102013290143113
5Fire 7.1 64-bit333409430102 241011910610700
6Fire 6.1 64-bit328800002410 0191801384
7Fire 4 64-bit 4CPU3255034225713291190 0957308
8Fire 5 64-bit32510000106119180 01265
9Fire 3.0 64-bit 4CPU321501260143009570 0
10Fire 4 64-bit3191000113700138430812650 
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
#NameElo12345678910
1Fire 8 64-bit 8CPU3549 11.710.28.10.00.00.00.00.00.0
2Fire 7.1 64-bit 4CPU342611.7 7.75.28.20.03.80.01.80.0
3Fire 6.1 64-bit 4CPU334710.27.7 31.50.00.05.40.00.00.0
4Fire 5 64-bit 4CPU33348.15.231.5 1.50.028.90.05.72.4
5Fire 7.1 64-bit33340.08.20.01.5 28.81.314.90.07.7
6Fire 6.1 64-bit32880.00.00.00.028.8 0.045.80.022.5
7Fire 4 64-bit 4CPU32550.03.85.428.91.30.0 0.022.14.6
8Fire 5 64-bit32510.00.00.00.014.945.80.0 0.025.9
9Fire 3.0 64-bit 4CPU32150.01.80.05.70.00.022.10.0 0.0
10Fire 4 64-bit31910.00.00.02.47.722.54.625.90.0 
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 71 common opponents

Custom engine selection
NameEloFire
8
64-bit
8CPU
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
Stockfish 13 64-bit 8CPU371920%
18.5/94
9%
8/92
        
Fat Fritz 2 (in SF) 64-bit 8CPU371822%
21/95
8%
7.5/100
        
Stockfish 12 64-bit3634 23%
9.5/42
  7%
7/100
     
Leelenstein 11.1 RTX2080362637%
35/94
19%
11/58
        
Allie 0.5 nn49921 RTX2080356048%
45.5/94
31%
18.5/59
        
Stockfish 9 64-bit 4CPU3545 40%
16/40
21%
17.5/82
       
SlowChess Blitz 2.5 64-bit 8CPU354452%
48.5/94
34%
17/50
        
Houdini 6 64-bit 4CPU351754%
59/110
 15%
27/178
23%
24/104
      
Stockfish 8 64-bit 4CPU3492  23%
20.5/89
25%
13/52
  21%
16/76
   
Lc0 0.21.1 JH.T6.532 GTX10503491 42%
42/100
  27%
27/100
     
Komodo 12 64-bit 4CPU3487 41%
17/41
28%
26.5/96
       
Stockfish 9 64-bit3481    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
    
Lc0 0.20.2 w32930 GTX10503451 46%
45.5/100
  38%
38/100
     
Allie 0.5 nn42482 GTX10503444 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
NameEloFire
8
64-bit
8CPU
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
Komodo 12 64-bit3410    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
       
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
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-bit3247    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
 
NameEloFire
8
64-bit
8CPU
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
Hannibal 1.7 64-bit 4CPU3223 83%
35/42
 67%
35/52
  52%
27/52
   
Fritz 15 64-bit 4CPU3222   70%
36.5/52
  48%
33.5/70
   
NirvanaChess 2.4 64-bit 4CPU3222 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-bit3202    69%
27.5/40
67%
64/95
    
Andscacs 0.92 64-bit3201     63%
76/120
 64%
38.5/60
  
Andscacs 0.921 64-bit3200    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 4CPU3186   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
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-bit3145     83%
26.5/32
   63%
40.5/64
Fritz 16 64-bit3140    81%
32.5/40
72%
43.5/60
    
Strelka 5.5 64-bit3139   87%
54/62
80%
32/40
 65%
51.5/79
  48%
24.5/51
NirvanaChess 2.4 64-bit3131    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-bit3113    86%
34.5/40
76%
25/33
 73%
23.5/32
  
NameEloFire
8
64-bit
8CPU
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
Hannibal 1.7 64-bit3110    87%
35.5/41
71%
23.5/33
 79%
39.5/50
 70%
22.5/32
Rybka 4.1 64-bit3110    50%
1/2
  67%
33.5/50
 63%
31.5/50
NirvanaChess 2.3 64-bit3097       76%
35.5/47
 62%
12.5/20
Laser 1.5 64-bit3095    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 4CPU3071      78%
39/50
 62%
2.5/4
 
Defenchess 1.1f 64-bit3047    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 April 10, 2021