CCRL Blitz
Downloads and Statistics
May 9, 2021
Testing summary:
Total: 2'520'531 games
played by 3'005 programs

White wins: 968'591 (38.4%)
Black wins: 775'557 (30.8%)
Draws: 776'383 (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 9, 2021 with Bayeselo based on 2'520'531 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 4CPU2977+12−1247.0%+19.838.0%2197 
100.0%
 Gaviota 1.0 64-bit2871+8−848.7%+8.531.9%6797
100.0%
 Gaviota 0.86 64-bit2799+10−1049.5%+2.928.6%3619
100.0%
 Gaviota 0.85.1 64-bit2728+12−1255.0%−35.025.3%2821
100.0%
 Gaviota 0.84 64-bit2686+12−1253.2%−22.725.2%2639
60.3%
 Gaviota 0.85.1 32-bit2683+19−1938.5%+81.126.9%998
85.3%
 Gaviota 0.83 64-bit 4CPU2669+19−1962.2%−90.824.9%1019
100.0%
 Gaviota 0.83 64-bit2595+17−1753.8%−27.926.3%1235
100.0%
 Gaviota 0.80 64-bit2532+14−1453.9%−27.226.3%1873
100.0%
 Gaviota 0.75.7 64-bit2432+16−1646.0%+30.522.0%1404
 

Results matrix

Custom engine selection
#NameElo12345678910
1Gaviota 1.0 64-bit 4CPU2977          
2Gaviota 1.0 64-bit2871          
3Gaviota 0.86 64-bit2799          
4Gaviota 0.85.1 64-bit2728          
5Gaviota 0.84 64-bit2686       4 − 1
+3−0=2
+100
  
6Gaviota 0.85.1 32-bit2683          
7Gaviota 0.83 64-bit 4CPU2669          
8Gaviota 0.83 64-bit2595    1 − 4
+0−3=2
−100
     
9Gaviota 0.80 64-bit2532          
10Gaviota 0.75.7 64-bit2432          
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 4CPU2977 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-bit26860.00.00.00.0 60.393.6100.0100.0100.0
6Gaviota 0.85.1 32-bit26830.00.00.00.039.7 85.3100.0100.0100.0
7Gaviota 0.83 64-bit 4CPU26690.00.00.00.06.414.7 100.0100.0100.0
8Gaviota 0.83 64-bit25950.00.00.00.00.00.00.0 100.0100.0
9Gaviota 0.80 64-bit25320.00.00.00.00.00.00.00.0 100.0
10Gaviota 0.75.7 64-bit24320.00.00.00.00.00.00.00.00.0 
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 4CPU2977 345393300064000
2Gaviota 1.0 64-bit2871345 215287171062839392115
3Gaviota 0.86 64-bit27993932152 19921346119316317800
4Gaviota 0.85.1 64-bit2728308711992 357086112101383929372
5Gaviota 0.84 64-bit2686071013463570 864144020071189570
6Gaviota 0.85.1 32-bit268306281193861864 0000
7Gaviota 0.83 64-bit 4CPU26696439163121014400 199015471050
8Gaviota 0.83 64-bit25950391781383200701990 16411054
9Gaviota 0.80 64-bit253202109291189015471641 1914
10Gaviota 0.75.7 64-bit243201503725700105010541914 
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 4CPU2977 3.86.80.60.00.02.00.00.00.0
2Gaviota 1.0 64-bit28713.8 20.79.17.58.10.50.50.20.2
3Gaviota 0.86 64-bit27996.820.7 30.921.525.83.53.70.00.0
4Gaviota 0.85.1 64-bit27280.69.130.9 65.422.531.534.119.88.8
5Gaviota 0.84 64-bit26860.07.521.565.4 23.839.451.826.414.1
6Gaviota 0.85.1 32-bit26830.08.125.822.523.8 0.00.00.00.0
7Gaviota 0.83 64-bit 4CPU26692.00.53.531.539.40.0 88.353.543.3
8Gaviota 0.83 64-bit25950.00.53.734.151.80.088.3 52.839.9
9Gaviota 0.80 64-bit25320.00.20.019.826.40.053.552.8 58.4
10Gaviota 0.75.7 64-bit24320.00.20.08.814.10.043.339.958.4 
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-bit2987 27%
8.5/32
21%
8.5/40
14%
4.5/32
      
Protector 1.5.0 64-bit2983 34%
11/32
23%
11.5/50
       
Texel 1.03 64-bit2938 33%
10.5/32
21%
2.5/12
       
Spark 1.0 64-bit2925 51%
19.5/38
24%
22/90
28%
9/32
17%
5.5/32
     
Booot 5.2.0 64-bit2921 40%
12/30
20%
2/10
       
Spike 1.4 Leiden2919 43%
17.5/41
36%
35/97
14%
4.5/32
27%
8.5/32
     
DiscoCheck 5.2 64-bit291460%
30/50
43%
19/44
21%
1.5/7
       
Quazar 0.4 64-bit290061%
30/49
49%
19/39
35%
34/97
35%
3.5/10
      
Deep Junior Yokohama 64-bit2897 50%
16/32
28%
9/32
       
Hannibal 1.1 64-bit2895   23%
7.5/32
11%
3.5/32
     
Protector 1.4.0 64-bit2889  30%
15/50
30%
9.5/32
22%
7/32
     
Thinker 5.4d Inert 64-bit288453%
26.5/50
45%
17/38
33%
18/54
       
Thinker 5.4c Inert 64-bit2883   27%
8.5/32
25%
8/32
     
Murka 3 64-bit288268%
34/50
60%
15/25
35%
25.5/72
       
Toga II 3.02875 25%
1.5/6
32%
16/50
       
MinkoChess 1.3 64-bit2869 55%
21/38
44%
14/32
       
Tornado 8.0 64-bit 4CPU286670%
22.5/32
     33%
10.5/32
   
Nemo 1.0.1 64-bit2857 54%
22/41
46%
47.5/103
24%
7.5/31
25%
8/32
     
Zappa Mexico II 64-bit2846 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-bit2844 52%
16.5/32
52%
16.5/32
       
MinkoChess 1.2 64-bit2842  39%
12.5/32
32%
20.5/64
      
Booot 5.1.02838  41%
34/82
34%
11/32
44%
14/32
     
Crafty 23.8 64-bit2824 55%
16/29
46%
18/39
       
Toga II 1.4.1SE2823   42%
13.5/32
20%
6.5/32
     
Cheng4 0.36c 64-bit2819 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-bit2804  52%
31/60
30%
3/10
      
Texel 1.01 64-bit2796  48%
39.5/82
29%
11/38
      
Loop 13.6 (Loop 2007) 64-bit2795   26%
8/31
41%
11.5/28
     
Crafty 23.4 64-bit2781  59%
19/32
31%
10/32
47%
15/32
31%
30.5/99
    
GNU Chess 5.50 64-bit2780 17%
1/6
56%
22.5/40
       
Ktulu 92780 62%
20.5/33
34%
11/32
39%
12.5/32
59%
19/32
     
Octochess r5190 64-bit2780 61%
23/38
55%
26/47
       
Bright 0.4a2779 75%
4.5/6
48%
19/40
  36%
36/100
    
Scorpio 2.7 64-bit2775   39%
12/31
39%
12.5/32
40%
39.5/99
    
Bright 0.5c2771 63%
21.5/34
 38%
12/32
39%
12.5/32
     
Twisted Logic 20090922 64-bit2770 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-bit2768 56%
22/39
60%
43/72
31%
10/32
48%
15.5/32
34%
34.5/100
    
Jonny 4.002763 67%
113/168
59%
42.5/72
34%
11/32
39%
12.5/32
44%
44.5/100
    
Bison 9.11 64-bit2760 0%
0/1
55%
22/40
41%
13/32
44%
14/32
38%
38/100
    
BugChess2 1.9 64-bit2759 69%
27.5/40
49%
19.5/40
45%
14.5/32
36%
11.5/32
40%
39.5/100
    
SmarThink 1.20 64-bit2747  63%
19.5/31
55%
17.5/32
28%
9/32
44%
44/100
    
Dirty 05Sep2012 64-bit2740  58%
24.5/42
62%
12.5/20
      
Chronos 1.9.9 64-bit2739 50%
1/2
58%
60.5/104
52%
16.5/32
44%
14/32
43%
43/100
    
Chess Tiger 2007.12713   58%
18.5/32
59%
19/32
     
Bobcat 3.25 64-bit2712  58%
33/57
58%
18.5/32
      
Naum 2.0 32-bit2699   55%
17.5/32
47%
15/32
     
Fruit 2.12685  75%
30/40
48%
9.5/20
      
Delfi 5.42683 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-bit2682  60%
6/10
60%
6/10
      
Bobcat 2.75 64-bit2676    56%
24/43
  50%
13.5/27
  
RedQueen 1.0.0 64-bit2674   56%
18/32
67%
8/12
  8%
0.5/6
  
Daydreamer 1.75 64-bit2672  76%
38/50
56%
18/32
36%
11.5/32
 45%
14.5/32
47%
15/32
  
Dirty 25Aug2011 64-bit2668   72%
23/32
42%
5/12
  10%
0.5/5
  
Alaric 7072662 100%
2/2
 67%
21.5/32
50%
16/32
 56%
18/32
42%
13.5/32
40%
12/30
 
Cheng3 1.07 64-bit2661  45%
4.5/10
65%
35/54
      
Naraku 1.312652   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 2008b2641 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 11.01.28.1592636   66%
21/32
48%
21/44
  40%
2/5
  
E.T. Chess 13.01.082633 100%
2/2
 69%
22/32
61%
19.5/32
     
ProDeo 1.72630   59%
19/32
62%
18.5/30
     
Gandalf 62627 100%
1/1
 69%
22/32
58%
18.5/32
     
Alfil 8.1.1 Optimized2625   58%
18.5/32
52%
16.5/32
 64%
20.5/32
45%
14.5/32
32%
9.5/30
 
WildCat 82624 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)2621 100%
1/1
 67%
21.5/32
55%
17.5/32
     
Philou 3.7.1 64-bit2619  85%
8.5/10
70%
23/33
      
Godel 2.3.7 64-bit2617  100%
6/6
62%
20/32
      
Sloppy 0.2.2 64-bit2616   75%
24/32
66%
21/32
 69%
21.5/31
28%
9/32
48%
14.5/30
 
Slow Chess Blitz WV2.12614 100%
1/1
 73%
23.5/32
53%
17/32
 41%
13/32
52%
15.5/30
  
Rotor 0.82611 75%
1.5/2
75%
7.5/10
       
Ruffian 2.1.02610   73%
23.5/32
58%
18.5/32
     
GarboChess 2.20 64-bit2607   78%
25/32
59%
19/32
     
Amyan 1.722604   74%
23/31
64%
28/44
 59%
19/32
51%
19/37
42%
12.5/30
 
Pharaon 3.5.12603 100%
2/2
 75%
24/32
53%
17/32
 44%
14/32
59%
19/32
38%
11.5/30
 
Zappa 1.1 64-bit2603    50%
16/32
 53%
17/32
45%
13.5/30
40%
12/30
29%
8.5/29
Cheng3 1.05 64-bit2601    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-bit2597  85%
8.5/10
66%
21/32
65%
28.5/44
  30%
1.5/5
  
CuckooChess 1.12 64-bit2596   78%
25/32
75%
9/12
     
GNU Chess 5.07.1705b (TCEC) 64-bit2596    67%
29.5/44
  60%
3/5
  
N2 0.4 64-bit2591   73%
23.5/32
61%
27/44
 66%
21/32
47%
17.5/37
42%
12.5/30
32%
9.5/30
Ruffian 1.0.52585   72%
23/32
66%
21/32
 67%
21.5/32
39%
12.5/32
50%
15/30
25%
7.5/30
Francesca MAD 0.192581 100%
1/1
  62%
7.5/12
     
Cheng3 1.04 64-bit2580    67%
8/12
  20%
1/5
  
Hamsters 0.7.12578   78%
25/32
72%
23/32
 61%
19.5/32
62%
20/32
35%
10.5/30
 
Arasan 13.1 64-bit2575    75%
9/12
  70%
3.5/5
  
Pseudo 0.7c2573   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 5.12571 100%
1/1
 66%
21/32
83%
26.5/32
 67%
21.5/32
53%
17/32
 12%
3.5/30
Francesca MAD 0.182569    62%
7.5/12
  70%
3.5/5
  
Aristarch 4.502567    72%
23/32
 55%
17.5/32
42%
13.5/32
43%
13/30
38%
11.5/30
Petir 4.392564   88%
28/32
60%
26.5/44
  90%
4.5/5
  
Deuterium 09.01.26.4922561        45%
13.5/30
35%
10.5/30
Brutus 8.05 64-bit2560   65%
20/31
52%
16.5/32
  52%
16.5/32
58%
17.5/30
 
Glass 1.7 64-bit2556    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 3.602551    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-bit2540   80%
25.5/32
66%
29/44
  60%
3/5
  
CuckooChess 1.11 64-bit2538    83%
10/12
  60%
3/5
  
AnMon 5.752537   77%
24.5/32
69%
22/32
 62%
20/32
56%
18/32
50%
15/30
25%
7.5/30
SmarThink 0.17a2536    73%
23.5/32
 59%
19/32
59%
19/32
43%
13/30
35%
10.5/30
Hermann 2.8 64-bit2531    71%
8.5/12
  60%
3/5
  
DanaSah 4.662530    67%
8/12
  20%
1/5
  
GreKo 8.2 64-bit2526    62%
7.5/12
  60%
3/5
  
Dirty 6J-222512        64%
18.5/29
45%
13/29
Hermann 2.5 64-bit2512      69%
22/32
52%
16.5/32
55%
16.5/30
47%
14/30
Rodin 4.02511    75%
9/12
  70%
3.5/5
  
Pupsi2 0.082506    54%
6.5/12
  70%
3.5/5
47%
15/32
 
Green Light Chess 3.01.2.22505      83%
26.5/32
81%
26/32
45%
13/29
34%
10/29
Little Goliath Evolution 3.122502      61%
19/31
60%
18.5/31
30%
9/30
32%
9.5/30
Yace 0.99.872502      65%
20/31
70%
22.5/32
67%
20/30
40%
12/30
Trace 1.37a2499      73%
23.5/32
59%
19/32
57%
17/30
27%
8/30
nanoSzachy 3.92494    58%
7/12
  70%
3.5/5
  
Bruja 1.9.1 64-bit2490      66%
21/32
47%
15/32
55%
16.5/30
37%
11/30
Xpdnt 0910072472      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-bit2466    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-bit2462    96%
11.5/12
  50%
2.5/5
  
Delphil 2.82450    75%
9/12
  80%
4/5
  
Counter 1.22446        55%
16.5/30
52%
15.5/30
SpiderChess 0706032439 100%
1/1
      73%
22/30
50%
15/30
Atlas 3.14b 64-bit2435    79%
9.5/12
  40%
2/5
  
Abrok 5.02431      84%
27/32
83%
26.5/32
67%
20/30
42%
12.5/30
King of Kings 2.562431        62%
18.5/30
58%
17.5/30
Eeyore 1.52 64-bit2427    75%
9/12
  70%
3.5/5
  
Gaia 3.5 64-bit2423        60%
18/30
40%
12/30
Quark 2.352423        52%
15.5/30
58%
17.5/30
Hussar 0.42421    67%
8/12
  80%
4/5
  
Dragon 4.62417        70%
21/30
70%
21/30
Snitch 1.6.2 32-bit2417        72%
21.5/30
50%
15/30
OliThink 5.3.0 64-bit2415        63%
19/30
58%
17.5/30
Typhoon 1.00-3582413    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 0.53h2386        68%
20.5/30
47%
14/30
Diablo 0.5.12384        52%
15.5/30
65%
19.5/30
Amy 0.87b2383        70%
21/30
60%
17.5/29
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 0.162381        73%
22/30
60%
18/30
Sage 3.532323 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 9, 2021