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 16 engines!
16 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+
1Counter 3.7 64-bit2982+19−1955.3%−32.145.6%824 
87.9%
 Counter 3.4 64-bit 4CPU2966+18−1852.6%−17.440.5%1007
99.1%
 Counter 3.5 64-bit2935+18−1851.4%−8.536.3%965
100.0%
 Counter 3.4 64-bit2888+18−1849.7%+1.839.2%945
80.6%
 Counter 3.3 64-bit2876+19−1949.6%+2.134.0%932
97.4%
 Counter 3.2 64-bit2848+21−2152.1%−16.435.4%745
99.9%
 Counter 3.1 64-bit2796+25−2555.1%−33.528.9%571
100.0%
 Counter 2.9 64-bit2703+20−2049.5%+5.426.6%920
100.0%
 Counter 2.8 64-bit2643+21−2150.6%−3.928.4%800
61.9%
 Counter 2.7 64-bit2634+53−5259.1%−64.323.6%127
97.5%
 Counter 2.5 64-bit2577+21−2147.3%+19.730.3%775
53.1%
 Counter 2.0.2 64-bit2575+28−2849.7%+2.126.7%430
81.9%
 Counter 2.1.0 64-bit2560+18−1846.1%+27.128.0%1114
85.5%
 Counter 2.0.1 64-bit2546+19−1943.6%+43.228.7%924
100.0%
 Counter 1.99 64-bit2451+23−2343.8%+42.828.0%640
64.2%
 Counter 1.22446+10−948.0%+14.036.0%3950
 

Results matrix

Custom engine selection
#NameElo12345678910111213141516
1Counter 3.7 64-bit2982                
2Counter 3.4 64-bit 4CPU2966                
3Counter 3.5 64-bit2935                
4Counter 3.4 64-bit2888                
5Counter 3.3 64-bit2876                
6Counter 3.2 64-bit2848                
7Counter 3.1 64-bit2796                
8Counter 2.9 64-bit2703                
9Counter 2.8 64-bit2643                
10Counter 2.7 64-bit2634                
11Counter 2.5 64-bit2577                
12Counter 2.0.2 64-bit2575                
13Counter 2.1.0 64-bit2560                
14Counter 2.0.1 64-bit2546                
15Counter 1.99 64-bit2451                
16Counter 1.22446                
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
#NameElo12345678910111213141516
1Counter 3.7 64-bit2982 87.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Counter 3.4 64-bit 4CPU296612.1 99.1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Counter 3.5 64-bit29350.00.9 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
4Counter 3.4 64-bit28880.00.00.0 80.699.7100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
5Counter 3.3 64-bit28760.00.00.019.4 97.4100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
6Counter 3.2 64-bit28480.00.00.00.32.6 99.9100.0100.0100.0100.0100.0100.0100.0100.0100.0
7Counter 3.1 64-bit27960.00.00.00.00.00.1 100.0100.0100.0100.0100.0100.0100.0100.0100.0
8Counter 2.9 64-bit27030.00.00.00.00.00.00.0 100.099.1100.0100.0100.0100.0100.0100.0
9Counter 2.8 64-bit26430.00.00.00.00.00.00.00.0 61.9100.0100.0100.0100.0100.0100.0
10Counter 2.7 64-bit26340.00.00.00.00.00.00.00.938.1 97.597.199.599.9100.0100.0
11Counter 2.5 64-bit25770.00.00.00.00.00.00.00.00.02.5 53.188.998.4100.0100.0
12Counter 2.0.2 64-bit25750.00.00.00.00.00.00.00.00.02.946.9 81.995.5100.0100.0
13Counter 2.1.0 64-bit25600.00.00.00.00.00.00.00.00.00.511.118.1 85.5100.0100.0
14Counter 2.0.1 64-bit25460.00.00.00.00.00.00.00.00.00.11.64.514.5 100.0100.0
15Counter 1.99 64-bit24510.00.00.00.00.00.00.00.00.00.00.00.00.00.0 64.2
16Counter 1.224460.00.00.00.00.00.00.00.00.00.00.00.00.00.035.8 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo12345678910111213141516
1Counter 3.7 64-bit2982 1194399328806000000000
2Counter 3.4 64-bit 4CPU2966119 1825612551896000000000
3Counter 3.5 64-bit2935439182 11325809000000000
4Counter 3.4 64-bit288893561113 28738390951030000000
5Counter 3.3 64-bit2876288255258287 13516300000000
6Counter 3.2 64-bit284801890383135 1366500000000
7Counter 3.1 64-bit27966699016136 10428409109907
8Counter 2.9 64-bit270300095365104 11239101218937
9Counter 2.8 64-bit264300010300284112 72723727003
10Counter 2.7 64-bit26340000000372 000000
11Counter 2.5 64-bit257700000099720 35713011110024
12Counter 2.0.2 64-bit2575000000101030357 496373621
13Counter 2.1.0 64-bit25600000009127201301496 1202255271
14Counter 2.0.1 64-bit2546000000918970011103731202 247204
15Counter 1.99 64-bit2451000000030006255247 882
16Counter 1.2244600000077302421271204882 
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
#NameElo12345678910111213141516
1Counter 3.7 64-bit2982 6.524.55.316.40.00.40.00.00.00.00.00.00.00.00.0
2Counter 3.4 64-bit 4CPU29666.5 9.228.713.210.80.40.00.00.00.00.00.00.00.00.0
3Counter 3.5 64-bit293524.59.2 5.913.60.00.60.00.00.00.00.00.00.00.00.0
4Counter 3.4 64-bit28885.328.75.9 15.322.75.95.15.90.00.00.00.00.00.00.0
5Counter 3.3 64-bit287616.413.213.615.3 8.11.10.20.00.00.00.00.00.00.00.0
6Counter 3.2 64-bit28480.010.80.022.78.1 10.33.90.00.00.00.00.00.00.00.0
7Counter 3.1 64-bit27960.40.40.65.91.110.3 7.020.70.00.71.00.50.60.00.2
8Counter 2.9 64-bit27030.00.00.05.10.23.97.0 6.50.30.50.70.610.20.20.1
9Counter 2.8 64-bit26430.00.00.05.90.00.020.76.5 7.84.60.23.84.10.00.1
10Counter 2.7 64-bit26340.00.00.00.00.00.00.00.37.8 0.00.00.00.00.00.0
11Counter 2.5 64-bit25770.00.00.00.00.00.00.70.54.60.0 29.668.965.30.00.5
12Counter 2.0.2 64-bit25750.00.00.00.00.00.01.00.70.20.029.6 32.127.50.60.5
13Counter 2.1.0 64-bit25600.00.00.00.00.00.00.50.63.80.068.932.1 59.014.55.4
14Counter 2.0.1 64-bit25460.00.00.00.00.00.00.610.24.10.065.327.559.0 15.84.2
15Counter 1.99 64-bit24510.00.00.00.00.00.00.00.20.00.00.00.614.515.8 19.2
16Counter 1.224460.00.00.00.00.00.00.20.10.10.00.50.55.44.219.2 
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 89 common opponents

Custom engine selection
NameEloCounter
3.7
64-bit
Counter
3.4
64-bit
4CPU
Counter
3.5
64-bit
Counter
3.4
64-bit
Counter
3.3
64-bit
Counter
3.2
64-bit
Counter
3.1
64-bit
Counter
2.9
64-bit
Counter
2.8
64-bit
Counter
2.7
64-bit
Counter
2.5
64-bit
Counter
2.0.2
64-bit
Counter
2.1.0
64-bit
Counter
2.0.1
64-bit
Counter
1.99
64-bit
Counter
1.2
Tucano 9.00 64-bit302252%
37/71
 31%
9.5/31
             
Hakkapeliitta TCEC v2 64-bit302140%
29/73
51%
23.5/46
              
Crafty 25.6 64-bit295551%
36.5/72
 36%
11.5/32
             
Spark 1.0 64-bit292668%
50/73
   41%
13/32
           
Asymptote 0.8 64-bit292462%
45/72
  32%
10/31
            
Atlas 3.91 64-bit2923 61%
19.5/32
55%
28.5/52
 41%
13/32
           
Invictus r305 64-bit292352%
38/73
 55%
28.5/52
             
Spike 1.4 Leiden292064%
47/73
   44%
14/32
           
EXchess 7.97b 64-bit291656%
39/70
   39%
12.5/32
 100%
1/1
         
DiscoCheck 5.2.1 64-bit2913 53%
15.5/29
 39%
24.5/63
 31%
10/32
          
Quazar 0.4 64-bit2901 66%
20.5/31
 53%
33.5/63
38%
12/32
           
Zurichess Neuchatel 64-bit2901 65%
20/31
 43%
27/63
50%
16.5/33
39%
13/33
          
Tucano 8.00 64-bit2895  58%
30.5/53
 45%
14/31
           
Daydreamer 2.0.0-pre2 64-bit2890 69%
21.5/31
 49%
31/63
62%
20.5/33
41%
13.5/33
0%
0/1
         
Murka 3 64-bit2882 70%
21/30
 55%
34.5/63
            
The Baron 3.44 64-bit288264%
46.5/73
 45%
23.5/52
   50%
0.5/1
         
Asymptote 0.7 64-bit2881  65%
34/52
 47%
15/32
           
Gaviota 1.0 64-bit2871  65%
34.5/53
 0%
0/1
 100%
1/1
         
DisasterArea 1.65 64-bit2869  55%
28.5/52
 50%
0.5/1
           
Zappa Mexico II 64-bit2846 48%
21.5/45
70%
37/53
55%
33/60
  0%
0/1
         
NameEloCounter
3.7
64-bit
Counter
3.4
64-bit
4CPU
Counter
3.5
64-bit
Counter
3.4
64-bit
Counter
3.3
64-bit
Counter
3.2
64-bit
Counter
3.1
64-bit
Counter
2.9
64-bit
Counter
2.8
64-bit
Counter
2.7
64-bit
Counter
2.5
64-bit
Counter
2.0.2
64-bit
Counter
2.1.0
64-bit
Counter
2.0.1
64-bit
Counter
1.99
64-bit
Counter
1.2
Tornado 8.0 64-bit2829   59%
37/63
  50%
14/28
 38%
15/40
       
Octochess r5506 64-bit2819    0%
0/1
53%
17.5/33
0%
0/1
         
Monolith 1.0 64-bit2818   66%
41.5/63
 52%
17/33
 39%
12.5/32
        
Rhetoric 1.4.3 64-bit2808     61%
20/33
42%
13.5/32
         
RuyDos 1.1.6 64-bit2798      38%
12.5/33
 24%
9.5/40
       
Cheese 2.0 64-bit2771    50%
0.5/1
 65%
19.5/30
         
Frenzee 3.5.19 64-bit2769     66%
21/32
62%
20.5/33
         
Gogobello 1.4 64-bit2755      67%
18/27
 36%
14.5/40
       
Karballo 1.8 64-bit2733    50%
0.5/1
 53%
17.5/33
         
Donna 4.1 64-bit2701    0%
0/1
  52%
16.5/32
        
Arminius 2017-01-01 64-bit2688      62%
20.5/33
        0%
0/1
Djinn 1.021 64-bit2674       43%
29.5/69
     38%
11.5/30
  
RedQueen 1.1.98 64-bit2669      76%
25/33
55%
38/69
45%
18/40
  50%
0.5/1
    
Gandalf 7 64-bit2665      100%
1/1
56%
38.5/69
        
Alaric 7072663       51%
36/70
     38%
11.5/30
  
ECE X3 64-bit2655       50%
0.5/1
   0%
0/1
    
Cyrano 0.6b17 64-bit2641      100%
1/1
50%
0.5/1
   0%
0/1
    
WyldChess 1.51 64-bit2628          39%
12.5/32
 47%
15/32
   
WildCat 82624          67%
21.5/32
42%
12.5/30
39%
12.5/32
58%
18.5/32
  
Movei 00.8.438 (10 10 10)2622          47%
15/32
 53%
17/32
47%
15/32
  
NameEloCounter
3.7
64-bit
Counter
3.4
64-bit
4CPU
Counter
3.5
64-bit
Counter
3.4
64-bit
Counter
3.3
64-bit
Counter
3.2
64-bit
Counter
3.1
64-bit
Counter
2.9
64-bit
Counter
2.8
64-bit
Counter
2.7
64-bit
Counter
2.5
64-bit
Counter
2.0.2
64-bit
Counter
2.1.0
64-bit
Counter
2.0.1
64-bit
Counter
1.99
64-bit
Counter
1.2
GreKo 2016 64-bit2619           38%
11.5/30
37%
11.5/31
44%
14/32
  
Philou 3.7.1 64-bit2619          48%
15.5/32
 30%
9.5/32
23%
7.5/32
  
DanaSah 7.32618      100%
1/1
 50%
20/40
       
Slow Chess Blitz WV2.12615          48%
15.5/32
 50%
16/32
28%
9/32
  
Glass 2.0 64-bit2614        62%
25/40
 36%
11.5/32
 47%
15/32
42%
12.5/30
 0%
0/1
Jellyfish 1.1 64-bit2611       0%
0/1
  55%
17.5/32
 48%
15.5/32
28%
9/32
  
Rotor 0.82611       50%
0.5/1
  29%
9/31
 50%
16/32
33%
10.5/32
  
Ruffian 2.1.02610      0%
0/1
   59%
19/32
 42%
13.5/32
31%
10/32
  
GarboChess 2.20 64-bit2607          45%
14.5/32
 42%
13.5/32
38%
12/32
  
Amyan 1.722604          40%
11.5/29
 34%
11/32
27%
8.5/32
 0%
0/1
Pharaon 3.5.12603      100%
1/1
   36%
11.5/32
 44%
14/32
42%
13.5/32
 50%
0.5/1
DanaSah 7.02599          36%
10.5/29
50%
15/30
    
N2 0.4 64-bit2591       100%
1/1
  41%
12/29
    50%
0.5/1
Floyd 0.9 64-bit2587          68%
21/31
 38%
12/32
47%
15/32
  
K2 0.872586          50%
14/28
30%
9/30
38%
11.5/30
   
Hamsters 0.7.12579          40%
11.5/29
 48%
15.5/32
34%
11/32
  
Muse 0.953 64-bit2578          53%
15.5/29
 48%
15.5/32
35%
11/31
 100%
1/1
Pseudo 0.7c2574      100%
1/1
   36%
10/28
0%
0/1
 47%
14/30
 100%
1/1
Maverick 1.5 64-bit2572          61%
17/28
47%
14.5/31
61%
19.5/32
50%
14/28
  
SOS 5.12572          48%
14/29
 48%
15.5/32
45%
13.5/30
 50%
0.5/1
NameEloCounter
3.7
64-bit
Counter
3.4
64-bit
4CPU
Counter
3.5
64-bit
Counter
3.4
64-bit
Counter
3.3
64-bit
Counter
3.2
64-bit
Counter
3.1
64-bit
Counter
2.9
64-bit
Counter
2.8
64-bit
Counter
2.7
64-bit
Counter
2.5
64-bit
Counter
2.0.2
64-bit
Counter
2.1.0
64-bit
Counter
2.0.1
64-bit
Counter
1.99
64-bit
Counter
1.2
Aristarch 4.502568          52%
13/25
62%
18.5/30
52%
16.5/32
53%
16/30
  
nanoSzachy 4.1 64-bit2561          42%
10.5/25
100%
1/1
44%
13.5/31
  0%
0/1
Brutus 8.05 64-bit2560          45%
12.5/28
67%
20/30
42%
13.5/32
   
Ghost 3.1 64-bit2545      100%
1/1
    43%
13/30
50%
16/32
   
Betsabe II 1.842542       100%
1/1
55%
22/40
62%
20/32
      
Pupsi2 0.092541           66%
20.5/31
 63%
19/30
  
Ufim 8.022541            52%
16.5/32
 44%
14/32
45%
13.5/30
Shield 1.3.1 64-bit2539           60%
18/30
 58%
17.5/30
  
Fridolin 2.00 64-bit2538            52%
16.5/32
 31%
9.5/31
48%
15.5/32
AnMon 5.752537       100%
1/1
    58%
18.5/32
60%
18/30
38%
12/32
37%
11.5/31
Capivara LK 0.09b02g 64-bit2536       0%
0/1
   48%
14/29
50%
16/32
  0%
0/1
Hermann 2.8 64-bit2531            42%
13.5/32
 44%
14/32
 
JikChess 0.02 64-bit2522            55%
17.5/32
  43%
12.5/29
Coiled 0.4 64-bit2508              0%
0/4
52%
16/31
Dorky 4.5 64-bit2505              47%
15/32
38%
12/32
Little Goliath Evolution 3.122503           50%
0.5/1
 60%
18/30
52%
16/31
29%
9/31
Yace 0.99.872503              47%
15/32
33%
10/30
Betsabe II 1.662495              33%
10.5/32
42%
13.5/32
Bruja 1.9.1 64-bit2491              36%
11.5/32
52%
15.5/30
Tao 5.62489              35%
11/31
52%
16/31
NameEloCounter
3.7
64-bit
Counter
3.4
64-bit
4CPU
Counter
3.5
64-bit
Counter
3.4
64-bit
Counter
3.3
64-bit
Counter
3.2
64-bit
Counter
3.1
64-bit
Counter
2.9
64-bit
Counter
2.8
64-bit
Counter
2.7
64-bit
Counter
2.5
64-bit
Counter
2.0.2
64-bit
Counter
2.1.0
64-bit
Counter
2.0.1
64-bit
Counter
1.99
64-bit
Counter
1.2
Mephisto Gideon Professional2472              42%
13.5/32
45%
9.5/21
Cerebro 3.03d2470              47%
15/32
43%
12.5/29
Kiwi 0.6d 64-bit2470              52%
16.5/32
45%
13.5/30
Schooner 1.7.0 64-bit2464              48%
15.5/32
41%
13/32
LittleThought 1.052 64-bit2453           100%
1/1
 72%
21.5/30
53%
17/32
52%
16/31
Matacz 1.42445             75%
22.5/30
47%
15/32
100%
1/1
Ares 1.005.2 64-bit2440           100%
1/1
   58%
17.5/30
Gaia 3.5 64-bit2424           100%
1/1
   48%
14.5/30
Giraffe 20161023 64-bit2371           0%
0/1
   50%
0.5/1
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 April 10, 2021