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 10 engines!
10 selected engines played 5 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+
1Gaviota 1.0 64-bit 4CPU2978+13−1347.0%+19.738.0%2197 
100.0%
 Gaviota 1.0 64-bit2871+7−848.5%+10.031.9%6866
100.0%
 Gaviota 0.86 64-bit2799+10−1049.5%+3.728.6%3619
100.0%
 Gaviota 0.85.1 64-bit2728+12−1255.0%−34.225.3%2821
100.0%
 Gaviota 0.84 64-bit2687+12−1253.2%−22.825.2%2639
60.3%
 Gaviota 0.85.1 32-bit2684+19−1938.5%+81.126.9%998
85.3%
 Gaviota 0.83 64-bit 4CPU2670+19−1962.2%−90.924.9%1019
100.0%
 Gaviota 0.83 64-bit2596+17−1753.8%−28.126.3%1235
100.0%
 Gaviota 0.80 64-bit2533+14−1453.9%−27.326.3%1873
100.0%
 Gaviota 0.75.7 64-bit2433+16−1646.0%+30.322.0%1404
 

Results matrix

Custom engine selection
#NameElo12345678910
1Gaviota 1.0 64-bit 4CPU2978          
2Gaviota 1.0 64-bit2871          
3Gaviota 0.86 64-bit2799          
4Gaviota 0.85.1 64-bit2728          
5Gaviota 0.84 64-bit2687       4 − 1
+3−0=2
+100
  
6Gaviota 0.85.1 32-bit2684          
7Gaviota 0.83 64-bit 4CPU2670          
8Gaviota 0.83 64-bit2596    1 − 4
+0−3=2
−100
     
9Gaviota 0.80 64-bit2533          
10Gaviota 0.75.7 64-bit2433          
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
1Gaviota 1.0 64-bit 4CPU2978 100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Gaviota 1.0 64-bit28710.0 100.0100.0100.0100.0100.0100.0100.0100.0
3Gaviota 0.86 64-bit27990.00.0 100.0100.0100.0100.0100.0100.0100.0
4Gaviota 0.85.1 64-bit27280.00.00.0 100.0100.0100.0100.0100.0100.0
5Gaviota 0.84 64-bit26870.00.00.00.0 60.393.6100.0100.0100.0
6Gaviota 0.85.1 32-bit26840.00.00.00.039.7 85.3100.0100.0100.0
7Gaviota 0.83 64-bit 4CPU26700.00.00.00.06.414.7 100.0100.0100.0
8Gaviota 0.83 64-bit25960.00.00.00.00.00.00.0 100.0100.0
9Gaviota 0.80 64-bit25330.00.00.00.00.00.00.00.0 100.0
10Gaviota 0.75.7 64-bit24330.00.00.00.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo12345678910
1Gaviota 1.0 64-bit 4CPU2978 345393300064000
2Gaviota 1.0 64-bit2871345 215287171062839392115
3Gaviota 0.86 64-bit27993932152 19921346119316317800
4Gaviota 0.85.1 64-bit2728308711992 357086112101383929372
5Gaviota 0.84 64-bit2687071013463570 864144020071189570
6Gaviota 0.85.1 32-bit268406281193861864 0000
7Gaviota 0.83 64-bit 4CPU26706439163121014400 199015471050
8Gaviota 0.83 64-bit25960391781383200701990 16411054
9Gaviota 0.80 64-bit253302109291189015471641 1914
10Gaviota 0.75.7 64-bit243301503725700105010541914 
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
1Gaviota 1.0 64-bit 4CPU2978 3.86.80.60.00.02.00.00.00.0
2Gaviota 1.0 64-bit28713.8 20.59.07.58.00.50.50.20.2
3Gaviota 0.86 64-bit27996.820.5 30.921.525.83.53.70.00.0
4Gaviota 0.85.1 64-bit27280.69.030.9 65.422.531.534.119.88.8
5Gaviota 0.84 64-bit26870.07.521.565.4 23.839.451.826.414.1
6Gaviota 0.85.1 32-bit26840.08.025.822.523.8 0.00.00.00.0
7Gaviota 0.83 64-bit 4CPU26702.00.53.531.539.40.0 88.353.543.3
8Gaviota 0.83 64-bit25960.00.53.734.151.80.088.3 52.839.9
9Gaviota 0.80 64-bit25330.00.20.019.826.40.053.552.8 58.4
10Gaviota 0.75.7 64-bit24330.00.20.08.814.10.043.339.958.4 
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 142 common opponents

Custom engine selection
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Hannibal 1.4b 64-bit3018 36%
11.5/32
30%
6/20
       
Naum 4.2 64-bit2988 27%
8.5/32
21%
8.5/40
14%
4.5/32
      
Protector 1.5.0 64-bit2984 34%
11/32
23%
11.5/50
       
Texel 1.03 64-bit2939 33%
10.5/32
21%
2.5/12
       
Spark 1.0 64-bit2926 51%
19.5/38
24%
22/90
28%
9/32
17%
5.5/32
     
Booot 5.2.0 64-bit2922 40%
12/30
20%
2/10
       
Spike 1.4 Leiden2920 43%
17.5/41
36%
35/97
14%
4.5/32
27%
8.5/32
     
DiscoCheck 5.2 64-bit291560%
30/50
43%
19/44
21%
1.5/7
       
Quazar 0.4 64-bit290161%
30/49
49%
19/39
35%
34/97
35%
3.5/10
      
Deep Junior Yokohama 64-bit2898 50%
16/32
28%
9/32
       
Hannibal 1.1 64-bit2896   23%
7.5/32
11%
3.5/32
     
Protector 1.4.0 64-bit2890  30%
15/50
30%
9.5/32
22%
7/32
     
Thinker 5.4c Inert 64-bit2884   27%
8.5/32
25%
8/32
     
Thinker 5.4d Inert 64-bit288453%
26.5/50
45%
17/38
33%
18/54
       
Murka 3 64-bit288368%
34/50
60%
15/25
35%
25.5/72
       
Toga II 3.02876 25%
1.5/6
32%
16/50
       
MinkoChess 1.3 64-bit2870 55%
21/38
44%
14/32
       
Tornado 8.0 64-bit 4CPU286770%
22.5/32
     33%
10.5/32
   
Nemo 1.0.1 64-bit2858 54%
22/41
46%
47.5/103
24%
7.5/31
25%
8/32
     
Zappa Mexico II 64-bit2847 64%
25/39
 30%
9.5/32
      
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
SmarThink 1.50 64-bit2845 52%
16.5/32
52%
16.5/32
       
MinkoChess 1.2 64-bit2842  39%
12.5/32
32%
20.5/64
      
Booot 5.1.02839  41%
34/82
34%
11/32
44%
14/32
     
Crafty 23.8 64-bit2825 55%
16/29
46%
18/39
       
Toga II 1.4.1SE2824   42%
13.5/32
20%
6.5/32
     
Cheng4 0.36c 64-bit2820 63%
24/38
44%
28/64
       
Deuterium 14.1.32.119 64-bit2819 59%
19/32
56%
38/68
       
Scorpio 2.7.6 64-bit2816 50%
6/12
49%
35/72
       
Tornado 4.88 64-bit2810 75%
4.5/6
60%
6/10
       
Scorpio 2.7.5 64-bit2805  52%
31/60
30%
3/10
      
Texel 1.01 64-bit2797  48%
39.5/82
29%
11/38
      
Loop 13.6 (Loop 2007) 64-bit2796   26%
8/31
41%
11.5/28
     
Crafty 23.4 64-bit2782  59%
19/32
31%
10/32
47%
15/32
31%
30.5/99
    
Ktulu 92781 62%
20.5/33
34%
11/32
39%
12.5/32
59%
19/32
     
Octochess r5190 64-bit2781 61%
23/38
55%
26/47
       
Bright 0.4a2780 75%
4.5/6
48%
19/40
  36%
36/100
    
GNU Chess 5.50 64-bit2780 17%
1/6
56%
22.5/40
       
Scorpio 2.7 64-bit2776   39%
12/31
39%
12.5/32
40%
39.5/99
    
Bright 0.5c2772 63%
21.5/34
 38%
12/32
39%
12.5/32
     
Twisted Logic 20090922 64-bit2771 69%
22/32
52%
16.5/32
42%
13.5/32
28%
9/32
34%
34.5/100
    
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Frenzee 3.5.19 64-bit2769 56%
22/39
60%
43/72
31%
10/32
48%
15.5/32
34%
34.5/100
    
Jonny 4.002764 67%
113/168
59%
42.5/72
34%
11/32
39%
12.5/32
44%
44.5/100
    
Bison 9.11 64-bit2761 0%
0/1
55%
22/40
41%
13/32
44%
14/32
38%
38/100
    
BugChess2 1.9 64-bit2760 69%
27.5/40
49%
19.5/40
45%
14.5/32
36%
11.5/32
40%
39.5/100
    
SmarThink 1.20 64-bit2748  63%
19.5/31
55%
17.5/32
28%
9/32
44%
44/100
    
Chronos 1.9.9 64-bit2740 50%
1/2
58%
60.5/104
52%
16.5/32
44%
14/32
43%
43/100
    
Dirty 05Sep2012 64-bit2740  58%
24.5/42
62%
12.5/20
      
Bobcat 3.25 64-bit2713  58%
33/57
58%
18.5/32
      
Chess Tiger 2007.12713   58%
18.5/32
59%
19/32
     
Naum 2.0 32-bit2700   55%
17.5/32
47%
15/32
     
Fruit 2.12685  75%
30/40
48%
9.5/20
      
Delfi 5.42684 83%
2.5/3
70%
34.5/49
69%
22/32
47%
15/32
 56%
18/32
39%
12.5/32
  
Deuterium 12.01.30.1070 64-bit2683  60%
6/10
60%
6/10
      
Bobcat 2.75 64-bit2676    56%
24/43
  50%
13.5/27
  
RedQueen 1.0.0 64-bit2675   56%
18/32
67%
8/12
  8%
0.5/6
  
Daydreamer 1.75 64-bit2673  76%
38/50
56%
18/32
36%
11.5/32
 45%
14.5/32
47%
15/32
  
Dirty 25Aug2011 64-bit2669   72%
23/32
42%
5/12
  10%
0.5/5
  
Alaric 7072663 100%
2/2
 67%
21.5/32
50%
16/32
 56%
18/32
42%
13.5/32
40%
12/30
 
Cheng3 1.07 64-bit2662  45%
4.5/10
65%
35/54
      
Naraku 1.312653   53%
17/32
72%
23/32
   20%
6/30
 
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Colossus 2008b2642 75%
1.5/2
 58%
18.5/32
52%
16.5/32
 55%
17.5/32
42%
13.5/32
  
Cyrano 0.6b17 64-bit2641   56%
17.5/31
58%
17.5/30
 68%
21/31
36%
11.5/32
32%
9.5/30
 
Deuterium 11.01.28.1592637   66%
21/32
48%
21/44
  40%
2/5
  
E.T. Chess 13.01.082634 100%
2/2
 69%
22/32
61%
19.5/32
     
ProDeo 1.72631   59%
19/32
62%
18.5/30
     
Gandalf 62628 100%
1/1
 69%
22/32
58%
18.5/32
     
Alfil 8.1.1 Optimized2626   58%
18.5/32
52%
16.5/32
 64%
20.5/32
45%
14.5/32
32%
9.5/30
 
WildCat 82625 0%
0/1
 69%
21.5/31
53%
17/32
 56%
17.5/31
42%
13.5/32
  
Movei 00.8.438 (10 10 10)2622 100%
1/1
 67%
21.5/32
55%
17.5/32
     
Philou 3.7.1 64-bit2620  85%
8.5/10
70%
23/33
      
Godel 2.3.7 64-bit2618  100%
6/6
62%
20/32
      
Sloppy 0.2.2 64-bit2617   75%
24/32
66%
21/32
 69%
21.5/31
28%
9/32
48%
14.5/30
 
Slow Chess Blitz WV2.12615 100%
1/1
 73%
23.5/32
53%
17/32
 41%
13/32
52%
15.5/30
  
Rotor 0.82612 75%
1.5/2
75%
7.5/10
       
Ruffian 2.1.02611   73%
23.5/32
58%
18.5/32
     
GarboChess 2.20 64-bit2608   78%
25/32
59%
19/32
     
Amyan 1.722605   74%
23/31
64%
28/44
 59%
19/32
51%
19/37
42%
12.5/30
 
Pharaon 3.5.12604 100%
2/2
 75%
24/32
53%
17/32
 44%
14/32
59%
19/32
38%
11.5/30
 
Zappa 1.1 64-bit2604    50%
16/32
 53%
17/32
45%
13.5/30
40%
12/30
29%
8.5/29
Cheng3 1.05 64-bit2602    71%
8.5/12
  60%
3/5
  
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
GNU Chess 5.07.173b 64-bit2598  85%
8.5/10
66%
21/32
65%
28.5/44
  30%
1.5/5
  
CuckooChess 1.12 64-bit2597   78%
25/32
75%
9/12
     
GNU Chess 5.07.1705b (TCEC) 64-bit2597    67%
29.5/44
  60%
3/5
  
N2 0.4 64-bit2592   73%
23.5/32
61%
27/44
 66%
21/32
47%
17.5/37
42%
12.5/30
32%
9.5/30
Ruffian 1.0.52586   72%
23/32
66%
21/32
 67%
21.5/32
39%
12.5/32
50%
15/30
25%
7.5/30
Cheng3 1.04 64-bit2581    67%
8/12
  20%
1/5
  
Francesca MAD 0.192581 100%
1/1
  62%
7.5/12
     
Hamsters 0.7.12579   78%
25/32
72%
23/32
 61%
19.5/32
62%
20/32
35%
10.5/30
 
Arasan 13.1 64-bit2576    75%
9/12
  70%
3.5/5
  
Pseudo 0.7c2574   78%
25/32
67%
21.5/32
 55%
17.5/32
64%
20.5/32
50%
15/30
20%
6/30
Rotor 0.62573   66%
21/32
59%
26/44
 64%
20.5/32
62%
23.5/38
48%
15.5/32
 
SOS 5.12572 100%
1/1
 66%
21/32
83%
26.5/32
 67%
21.5/32
53%
17/32
 12%
3.5/30
Francesca MAD 0.182570    62%
7.5/12
  70%
3.5/5
  
Aristarch 4.502568    72%
23/32
 55%
17.5/32
42%
13.5/32
43%
13/30
38%
11.5/30
Petir 4.392565   88%
28/32
60%
26.5/44
  90%
4.5/5
  
Deuterium 09.01.26.4922562        45%
13.5/30
35%
10.5/30
Brutus 8.05 64-bit2561   65%
20/31
52%
16.5/32
  52%
16.5/32
58%
17.5/30
 
Glass 1.7 64-bit2557    79%
9.5/12
  70%
3.5/5
  
The Baron 2.23 64-bit2555   75%
24/32
76%
25/33
 67%
21.5/32
58%
18.5/32
45%
13.5/30
40%
12/30
Philou 3.602552    75%
9/12
  70%
3.5/5
  
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Hermann 2.6 64-bit2541   80%
25.5/32
66%
29/44
  60%
3/5
  
CuckooChess 1.11 64-bit2539    83%
10/12
  60%
3/5
  
AnMon 5.752538   77%
24.5/32
69%
22/32
 62%
20/32
56%
18/32
50%
15/30
25%
7.5/30
SmarThink 0.17a2537    73%
23.5/32
 59%
19/32
59%
19/32
43%
13/30
35%
10.5/30
Hermann 2.8 64-bit2532    71%
8.5/12
  60%
3/5
  
DanaSah 4.662531    67%
8/12
  20%
1/5
  
GreKo 8.2 64-bit2526    62%
7.5/12
  60%
3/5
  
Dirty 6J-222513        64%
18.5/29
45%
13/29
Hermann 2.5 64-bit2513      69%
22/32
52%
16.5/32
55%
16.5/30
47%
14/30
Rodin 4.02512    75%
9/12
  70%
3.5/5
  
Pupsi2 0.082507    54%
6.5/12
  70%
3.5/5
47%
15/32
 
Green Light Chess 3.01.2.22506      83%
26.5/32
81%
26/32
45%
13/29
34%
10/29
Little Goliath Evolution 3.122503      61%
19/31
60%
18.5/31
30%
9/30
32%
9.5/30
Yace 0.99.872503      65%
20/31
70%
22.5/32
67%
20/30
40%
12/30
Trace 1.37a2500      73%
23.5/32
59%
19/32
57%
17/30
27%
8/30
nanoSzachy 3.92495    58%
7/12
  70%
3.5/5
  
Bruja 1.9.1 64-bit2491      66%
21/32
47%
15/32
55%
16.5/30
37%
11/30
Xpdnt 0910072473      81%
26/32
66%
21/32
62%
18.5/30
 
Kiwi 0.6d 64-bit2469 100%
1/1
    86%
27.5/32
62%
20/32
70%
21/30
62%
18.5/30
Dorky 4.3 64-bit2467    62%
7.5/12
  90%
4.5/5
  
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Pawny 0.3 64-bit2463    96%
11.5/12
  50%
2.5/5
  
Delphil 2.82451    75%
9/12
  80%
4/5
  
Counter 1.22447        55%
16.5/30
52%
15.5/30
SpiderChess 0706032440 100%
1/1
      73%
22/30
50%
15/30
Atlas 3.14b 64-bit2436    79%
9.5/12
  40%
2/5
  
King of Kings 2.562433        62%
18.5/30
58%
17.5/30
Abrok 5.02432      84%
27/32
83%
26.5/32
67%
20/30
42%
12.5/30
Eeyore 1.52 64-bit2428    75%
9/12
  70%
3.5/5
  
Gaia 3.5 64-bit2424        60%
18/30
40%
12/30
Quark 2.352424        52%
15.5/30
58%
17.5/30
Hussar 0.42422    67%
8/12
  80%
4/5
  
Dragon 4.62418        70%
21/30
70%
21/30
Snitch 1.6.2 32-bit2418        72%
21.5/30
50%
15/30
OliThink 5.3.0 64-bit2416        63%
19/30
58%
17.5/30
Typhoon 1.00-3582414    96%
11.5/12
  80%
4/5
  
RomiChess P3k 64-bit2408        67%
20/30
52%
15.5/30
KnightDreamer 3.32393 100%
1/1
       63%
19/30
Leila 0.53h2387        68%
20.5/30
47%
14/30
Amy 0.87b2384        70%
21/30
60%
17.5/29
Diablo 0.5.12384        52%
15.5/30
65%
19.5/30
NameEloGaviota
1.0
64-bit
4CPU
Gaviota
1.0
64-bit
Gaviota
0.86
64-bit
Gaviota
0.85.1
64-bit
Gaviota
0.84
64-bit
Gaviota
0.85.1
32-bit
Gaviota
0.83
64-bit
4CPU
Gaviota
0.83
64-bit
Gaviota
0.80
64-bit
Gaviota
0.75.7
64-bit
Gosu 0.162382        73%
22/30
60%
18/30
Sage 3.532324 100%
1/1
      87%
26/30
58%
17.5/30
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%

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Rating list
Testing profile
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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

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Reference rating list:
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Created in 2005-2013 by CCRL team
Last games added on May 15, 2021