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 9 engines!
9 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 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+
1Atlas 3.91 64-bit2923+10−945.8%+27.435.3%4140 
69.4%
 Atlas 3.90 64-bit2914+33−3353.5%−21.734.6%298
98.7%
 Atlas 3.80 64-bit2875+10−1052.6%−17.634.9%3412
100.0%
 Atlas 3.60 64-bit2703+14−1445.9%+30.129.2%1809
99.5%
 Atlas 3.50 64-bit2675+17−1752.4%−17.031.1%1205
100.0%
 Atlas 3.25 64-bit2570+15−1550.4%−1.924.3%1670
98.1%
 Atlas 3.20 64-bit2533+32−3261.2%−93.318.5%410
100.0%
 Atlas 3.14b 64-bit2436+13−1349.9%−0.823.8%2166
100.0%
 Atlas 2.202192+12−1249.6%+1.718.6%2931
 

Results matrix

Custom engine selection
#NameElo123456789
1Atlas 3.91 64-bit2923         
2Atlas 3.90 64-bit2914         
3Atlas 3.80 64-bit2875         
4Atlas 3.60 64-bit2703         
5Atlas 3.50 64-bit2675         
6Atlas 3.25 64-bit2570         
7Atlas 3.20 64-bit2533         
8Atlas 3.14b 64-bit2436         
9Atlas 2.202192         
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
#NameElo123456789
1Atlas 3.91 64-bit2923 69.4100.0100.0100.0100.0100.0100.0100.0
2Atlas 3.90 64-bit291430.6 98.7100.0100.0100.0100.0100.0100.0
3Atlas 3.80 64-bit28750.01.3 100.0100.0100.0100.0100.0100.0
4Atlas 3.60 64-bit27030.00.00.0 99.5100.0100.0100.0100.0
5Atlas 3.50 64-bit26750.00.00.00.5 100.0100.0100.0100.0
6Atlas 3.25 64-bit25700.00.00.00.00.0 98.1100.0100.0
7Atlas 3.20 64-bit25330.00.00.00.00.01.9 100.0100.0
8Atlas 3.14b 64-bit24360.00.00.00.00.00.00.0 100.0
9Atlas 2.2021920.00.00.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo123456789
1Atlas 3.91 64-bit2923 35686016681926183
2Atlas 3.90 64-bit2914356 50150070000
3Atlas 3.80 64-bit2875860501 785194785130
4Atlas 3.60 64-bit270316650785 85645388300
5Atlas 3.50 64-bit2675810194856 8112233480
6Atlas 3.25 64-bit2570927078453811 2014870
7Atlas 3.20 64-bit2533605188223201 471290
8Atlas 3.14b 64-bit2436180330348487471 664
9Atlas 2.202192300000290664 
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
#NameElo123456789
1Atlas 3.91 64-bit2923 8.011.42.81.51.60.10.30.0
2Atlas 3.90 64-bit29148.0 13.52.40.03.60.00.00.0
3Atlas 3.80 64-bit287511.413.5 15.04.21.51.30.10.0
4Atlas 3.60 64-bit27032.82.415.0 28.413.04.00.80.0
5Atlas 3.50 64-bit26751.50.04.228.4 28.213.810.30.0
6Atlas 3.25 64-bit25701.63.61.513.028.2 9.712.70.0
7Atlas 3.20 64-bit25330.10.01.34.013.89.7 18.38.7
8Atlas 3.14b 64-bit24360.30.00.10.810.312.718.3 13.0
9Atlas 2.2021920.00.00.00.00.00.08.713.0 
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 124 common opponents

Custom engine selection
NameEloAtlas
3.91
64-bit
Atlas
3.90
64-bit
Atlas
3.80
64-bit
Atlas
3.60
64-bit
Atlas
3.50
64-bit
Atlas
3.25
64-bit
Atlas
3.20
64-bit
Atlas
3.14b
64-bit
Atlas
2.20
Protector 1.9.0 64-bit308830%
10/33
 50%
0.5/1
      
iCE 3.0 64-bit308125%
8/32
 0%
0/1
      
Bobcat 8.0 64-bit296142%
14/33
 30%
9.5/32
      
Cheng 4.39 64-bit294347%
15/32
 47%
16/34
      
Amoeba 2.7 64-bit293952%
16.5/32
41%
9.5/23
       
Deep Sjeng c't 20102926100%
1/1
40%
9.5/24
50%
1/2
      
Spark 1.0 64-bit292625%
0.5/2
 56%
18.5/33
      
DiscoCheck 5.2.1 64-bit291362%
20/32
48%
11/23
48%
15/31
      
Zurichess Neuchatel 64-bit290250%
16/32
53%
16/30
59%
34.5/58
      
Quazar 0.4 64-bit290151%
17.5/34
57%
17/30
41%
13/32
  9%
3.5/40
   
chess22k 1.7 64-bit2898 63%
19/30
55%
16.5/30
      
Thinker 5.4d Inert 64-bit2884 58%
14/24
40%
12.5/31
      
Deuterium 14.3.34.130 64-bit288361%
19.5/32
56%
13.5/24
44%
15/34
      
Murka 3 64-bit288365%
20/31
47%
14/30
30%
9/30
30%
6/20
     
Tucano 7.00 64-bit287350%
0.5/1
 48%
28.5/60
      
Gaviota 1.0 64-bit287183%
2.5/3
 36%
11.5/32
      
MinkoChess 1.3 64-bit287056%
17.5/31
 43%
12/28
5%
0.5/10
22%
7/32
    
Dirty 30Apr2017 64-bit286525%
0.5/2
 52%
16/31
      
Nemo 1.0.1 64-bit285862%
20/32
 48%
16/33
      
Zappa Mexico II 64-bit2847100%
2/2
  31%
10/32
     
NameEloAtlas
3.91
64-bit
Atlas
3.90
64-bit
Atlas
3.80
64-bit
Atlas
3.60
64-bit
Atlas
3.50
64-bit
Atlas
3.25
64-bit
Atlas
3.20
64-bit
Atlas
3.14b
64-bit
Atlas
2.20
Tornado 8.0 64-bit2829100%
1/1
 66%
21/32
      
Octochess r5506 64-bit2819 62%
18.5/30
70%
19.5/28
      
Rhetoric 1.4.3 64-bit280865%
21.5/33
 65%
21.5/33
      
Scorpio 2.7.5 64-bit2805   40%
4/10
 0%
0/10
   
Gaviota 0.86 64-bit2799   44%
17/39
39%
15.5/40
    
Fruit 2.3.1278175%
1.5/2
 66%
16.5/25
      
Octochess r5190 64-bit278173%
23.5/32
 58%
18/31
52%
16.5/32
     
The Baron 3.42 64-bit278177%
24.5/32
 70%
21/30
      
Rhetoric 1.4.1 64-bit2779  61%
19.5/32
31%
10/32
     
Bright 0.5c277250%
0.5/1
 25%
0.5/2
31%
10/32
     
Twisted Logic 20090922 64-bit2771  68%
21/31
23%
7.5/32
     
Frenzee 3.5.19 64-bit2769  71%
23.5/33
45%
9/20
     
Twisted Logic 20100131x 64-bit2769100%
3/3
 50%
1/2
      
Pawny 1.2 64-bit276783%
2.5/3
 66%
21/32
      
EXchess 7.18b 64-bit2765   52%
10.5/20
50%
5/10
    
Jonny 4.002764  62%
20/32
45%
4.5/10
     
Dirty 20Apr2013 64-bit2762  60%
18.5/31
45%
4.5/10
     
NirvanaChess 1.3 64-bit2762   39%
12.5/32
30%
9.5/32
    
BugChess2 1.9 64-bit2760100%
1/1
 62%
20/32
55%
21.5/39
     
Gogobello 1.4 64-bit2756100%
2/2
 77%
24/31
      
NameEloAtlas
3.91
64-bit
Atlas
3.90
64-bit
Atlas
3.80
64-bit
Atlas
3.60
64-bit
Atlas
3.50
64-bit
Atlas
3.25
64-bit
Atlas
3.20
64-bit
Atlas
3.14b
64-bit
Atlas
2.20
Hakkapeliitta 2.0 64-bit2748  69%
22/32
33%
10.5/32
     
Godel 3.4.9 64-bit2742  64%
21/33
38%
11/29
     
Chronos 1.9.9 64-bit2740  71%
23.5/33
58%
18.5/32
45%
14.5/32
    
Arasan 16.2 64-bit2728   70%
7/10
50%
16/32
    
Deuterium 13.1.31.113 64-bit2721   28%
5.5/20
45%
14.5/32
    
iCE 1.0 64-bit2721   62%
12.5/20
41%
13/32
15%
4.5/31
   
Bobcat 3.25 64-bit2713  69%
21.5/31
58%
22.5/39
  28%
5.5/20
  
Chess Tiger 2007.12713  61%
19/31
48%
14.5/30
61%
19.5/32
    
Cheng4 0.35a 64-bit2711   45%
14.5/32
45%
14.5/32
    
RedQueen 1.1.4 64-bit2690   54%
13/24
47%
15/32
    
Delfi 5.42684100%
1/1
  61%
19.5/32
50%
16/32
    
Vajolet 2.482668   71%
5/7
56%
17.5/31
    
Alaric 7072663   55%
5.5/10
56%
18/32
 32%
6/19
  
Nebula 2.0 64-bit265550%
0.5/1
  70%
7/10
35%
3.5/10
45%
4.5/10
   
Pawny 1.0 64-bit2648   83%
7.5/9
 52%
16.5/32
   
Colossus 2008b2642  50%
0.5/1
75%
7.5/10
35%
3.5/10
45%
14.5/32
   
E.T. Chess 13.01.082634   75%
7.5/10
 33%
10.5/32
   
Gandalf 62628   66%
21/32
 42%
13.5/32
   
Vajolet 2.032628   55%
5.5/10
80%
8/10
    
WildCat 82625   65%
6.5/10
 39%
12.5/32
   
NameEloAtlas
3.91
64-bit
Atlas
3.90
64-bit
Atlas
3.80
64-bit
Atlas
3.60
64-bit
Atlas
3.50
64-bit
Atlas
3.25
64-bit
Atlas
3.20
64-bit
Atlas
3.14b
64-bit
Atlas
2.20
Movei 00.8.438 (10 10 10)2622   56%
18/32
 44%
14/32
   
Philou 3.7.1 64-bit2620   45%
4.5/10
30%
3/10
30%
6/20
   
Godel 2.3.7 64-bit2618   75%
7.5/10
 31%
10/32
   
Glass 2.0 64-bit2615    56%
23.5/42
31%
10/32
   
Rotor 0.8261250%
0.5/1
  71%
5/7
     
Ruffian 2.1.02611    47%
15/32
39%
12.5/32
   
Amyan 1.722605  0%
0/1
 62%
26/42
48%
15.5/32
 29%
3.5/12
 
Pharaon 3.5.12604    55%
17.5/32
  29%
5/17
 
Djinn 0.987 64-bit2602   61%
5.5/9
58%
24.5/42
52%
16.5/32
   
Glass 1.9 64-bit2601   65%
6.5/10
 44%
14/32
 22%
7/32
 
GarboChess 2.10 64-bit2599    61%
19.5/32
38%
12/32
   
GNU Chess 5.07.173b 64-bit2598    59%
19/32
59%
19/32
 42%
5/12
 
Arminius 2013-08-10 64-bit2597   57%
4/7
70%
22.5/32
    
N2 0.4 64-bit2592100%
1/1
   75%
7.5/10
  38%
4.5/12
 
Francesca MAD 0.192581    68%
28/41
  38%
4.5/12
 
Hamsters 0.7.12579   85%
8.5/10
59%
19/32
    
Tucano 2.00 64-bit2577    64%
27/42
39%
12.5/32
   
SOS 5.12572    60%
6/10
 56%
10/18
  
Rodin 6.02571    62%
20/32
45%
14/31
   
Aristarch 4.502568    75%
7.5/10
 61%
11.5/19
  
NameEloAtlas
3.91
64-bit
Atlas
3.90
64-bit
Atlas
3.80
64-bit
Atlas
3.60
64-bit
Atlas
3.50
64-bit
Atlas
3.25
64-bit
Atlas
3.20
64-bit
Atlas
3.14b
64-bit
Atlas
2.20
nanoSzachy 4.0 64-bit2544    50%
5/10
53%
16/30
44%
8/18
  
Ufim 8.022541     69%
22/32
47%
8.5/18
  
AnMon 5.752538100%
1/1
   50%
5/10
47%
15/32
58%
11/19
  
Rodin 5.12538     56%
23.5/42
 33%
10.5/32
 
Hermann 2.8 64-bit25320%
0/1
   75%
7.5/10
56%
18/32
40%
8/20
33%
4/12
 
Pepito 1.59.2 64-bit2521100%
1/1
   72%
6.5/9
62%
20/32
 48%
15.5/32
 
Rodin 4.02512      67%
12/18
21%
2.5/12
 
Green Light Chess 3.01.2.22506    90%
9/10
  56%
18/32
 
Little Goliath Evolution 3.122503100%
1/1
    69%
22/32
   
Yace 0.99.872503    55%
5.5/10
 56%
10/18
31%
10/32
 
Trace 1.37a2500    70%
7/10
  45%
14.5/32
 
Murka 2 64-bit2482     58%
11.5/20
 45%
14.5/32
 
Cheese 1.4 64-bit2476     50%
5/10
 42%
13.5/32
 
Cerebro 3.03d2471    80%
8/10
  38%
11.5/30
 
Dorky 4.3 64-bit2467     61%
5.5/9
 62%
7.5/12
 
Abrok 5.02432      58%
11/19
59%
10/17
12%
1/8
Eeyore 1.52 64-bit2428     90%
9/10
 67%
8/12
 
Gaia 3.5 64-bit2424      67%
12/18
71%
12/17
 
Nejmet 3.072424       56%
9.5/17
22%
6.5/29
Hussar 0.42422     60%
6/10
 71%
8.5/12
 
NameEloAtlas
3.91
64-bit
Atlas
3.90
64-bit
Atlas
3.80
64-bit
Atlas
3.60
64-bit
Atlas
3.50
64-bit
Atlas
3.25
64-bit
Atlas
3.20
64-bit
Atlas
3.14b
64-bit
Atlas
2.20
Dragon 4.62418       53%
17/32
22%
6.5/30
RomiChess P3L 64-bit2412     60%
6/10
 53%
16/30
 
Simplex 0.9.8 64-bit2408100%
1/1
      55%
17.5/32
 
OliThink 5.3.2 64-bit2403100%
1/1
    70%
7/10
   
Leila 0.53h2387      53%
9.5/18
38%
6.5/17
 
Gosu 0.162382       55%
17.5/32
19%
1.5/8
Comet B682378       58%
18.5/32
25%
0.5/2
Muse 0.899b2371       53%
9/17
50%
4/8
Amateur 2.822351      87%
16.5/19
50%
8.5/17
19%
12/62
Plisk 0.2.7d 64-bit2344       47%
15/32
38%
11.5/30
TJchess 1.1 64-bit2337      79%
15/19
78%
15.5/20
 
Arion 1.72333      45%
8.5/19
62%
10.5/17
30%
21.5/72
Sage 3.532324100%
1/1
      61%
19.5/32
 
Chezzz 1.0.32321       61%
19.5/32
45%
14.5/32
Sungorus 1.4 64-bit2310100%
1/1
      70%
22.5/32
 
Averno 0.812307100%
1/1
       41%
14/34
Joker 1.1.142302      92%
17.5/19
 35%
10.5/30
KnightX 1.922296       56%
9.5/17
32%
11/34
Anechka 0.082234      92%
16.5/18
62%
10.5/17
48%
31/64
Waxman 20102234      76%
14.5/19
50%
8.5/17
 
NameEloAtlas
3.91
64-bit
Atlas
3.90
64-bit
Atlas
3.80
64-bit
Atlas
3.60
64-bit
Atlas
3.50
64-bit
Atlas
3.25
64-bit
Atlas
3.20
64-bit
Atlas
3.14b
64-bit
Atlas
2.20
AliChess 4.252227      75%
13.5/18
71%
12/17
44%
13.5/31
Adam 3.32220      100%
19/19
68%
11.5/17
 
Buzz 0.08 64-bit2210       74%
12.5/17
48%
15.5/32
NagaSkaki 5.122155       74%
12.5/17
62%
21/34
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