CCRL Blitz
Downloads and Statistics
July 4, 2020
Testing summary:
Total: 2'318'734 games
played by 2'727 programs

White wins: 893'537 (38.5%)
Black wins: 718'844 (31.0%)
Draws: 706'353 (30.5%)
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 July 4, 2020 with Bayeselo based on 2'318'734 games

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+
1SlowChess Blitz Classic 2.2 64-bit3357+20−2058.5%−49.458.8%711 
100.0%
 SlowChess Blitz Classic 2.1 64-bit3262+16−1649.6%+3.257.7%1150
99.5%
 SlowChess Blitz Classic 2.0 64-bit3230+19−1851.4%−11.248.9%885
100.0%
 SlowChess Blitz Classic 1.9 64-bit3152+18−1848.9%+6.448.5%958
99.6%
 SlowChess Blitz Classic 1.8 64-bit3117+19−1946.2%+23.840.8%925
100.0%
 SlowChess Blitz Classic 1.6 64-bit3023+18−1852.5%−17.041.0%986
99.7%
 SlowChess Blitz Classic 1.5 64-bit2987+19−1949.7%+3.935.6%937
95.1%
 SlowChess Blitz Classic 1.4 64-bit2964+21−2170.3%−142.932.8%854
100.0%
 Slow Chess Blitz WV2.12614+6−646.1%+29.129.9%12486
 

Results matrix

Custom engine selection
#NameElo123456789
1SlowChess Blitz Classic 2.2 64-bit3357         
2SlowChess Blitz Classic 2.1 64-bit3262         
3SlowChess Blitz Classic 2.0 64-bit3230         
4SlowChess Blitz Classic 1.9 64-bit3152         
5SlowChess Blitz Classic 1.8 64-bit3117         
6SlowChess Blitz Classic 1.6 64-bit3023         
7SlowChess Blitz Classic 1.5 64-bit2987         
8SlowChess Blitz Classic 1.4 64-bit2964         
9Slow Chess Blitz WV2.12614         
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
1SlowChess Blitz Classic 2.2 64-bit3357 100.0100.0100.0100.0100.0100.0100.0100.0
2SlowChess Blitz Classic 2.1 64-bit32620.0 99.5100.0100.0100.0100.0100.0100.0
3SlowChess Blitz Classic 2.0 64-bit32300.00.5 100.0100.0100.0100.0100.0100.0
4SlowChess Blitz Classic 1.9 64-bit31520.00.00.0 99.6100.0100.0100.0100.0
5SlowChess Blitz Classic 1.8 64-bit31170.00.00.00.4 100.0100.0100.0100.0
6SlowChess Blitz Classic 1.6 64-bit30230.00.00.00.00.0 99.7100.0100.0
7SlowChess Blitz Classic 1.5 64-bit29870.00.00.00.00.00.3 95.1100.0
8SlowChess Blitz Classic 1.4 64-bit29640.00.00.00.00.00.04.9 100.0
9Slow Chess Blitz WV2.126140.00.00.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo123456789
1SlowChess Blitz Classic 2.2 64-bit3357 12776944793810000
2SlowChess Blitz Classic 2.1 64-bit32621277 149110529530000
3SlowChess Blitz Classic 2.0 64-bit32306941491 11438960000
4SlowChess Blitz Classic 1.9 64-bit315247910521143 159563844803
5SlowChess Blitz Classic 1.8 64-bit31173819538961595 76651203
6SlowChess Blitz Classic 1.6 64-bit3023000638766 149906
7SlowChess Blitz Classic 1.5 64-bit29870004485121499 03
8SlowChess Blitz Classic 1.4 64-bit29640000000 598
9Slow Chess Blitz WV2.126140003363598 
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
1SlowChess Blitz Classic 2.2 64-bit3357 68.643.528.723.30.00.00.00.0
2SlowChess Blitz Classic 2.1 64-bit326268.6 73.349.945.90.00.00.00.0
3SlowChess Blitz Classic 2.0 64-bit323043.573.3 62.049.50.00.00.00.0
4SlowChess Blitz Classic 1.9 64-bit315228.749.962.0 84.732.823.60.00.0
5SlowChess Blitz Classic 1.8 64-bit311723.345.949.584.7 40.127.50.00.0
6SlowChess Blitz Classic 1.6 64-bit30230.00.00.032.840.1 78.00.00.0
7SlowChess Blitz Classic 1.5 64-bit29870.00.00.023.627.578.0 0.00.0
8SlowChess Blitz Classic 1.4 64-bit29640.00.00.00.00.00.00.0 4.5
9Slow Chess Blitz WV2.126140.00.00.00.00.00.00.04.5 
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 75 common opponents

Custom engine selection
NameEloSlowChess
Blitz
Classic
2.2
64-bit
SlowChess
Blitz
Classic
2.1
64-bit
SlowChess
Blitz
Classic
2.0
64-bit
SlowChess
Blitz
Classic
1.9
64-bit
SlowChess
Blitz
Classic
1.8
64-bit
SlowChess
Blitz
Classic
1.6
64-bit
SlowChess
Blitz
Classic
1.5
64-bit
SlowChess
Blitz
Classic
1.4
64-bit
Slow
Chess
Blitz
WV2.1
Komodo 14 MCTS 64-bit336552%
33.5/64
32%
20.5/64
       
Xiphos 0.6 64-bit333753%
34/64
31%
20/64
       
Fire 7.1 64-bit333655%
35.5/64
42%
27/64
       
RofChade 2.3 64-bit330857%
36.5/64
46%
29.5/64
       
Booot 6.4 64-bit329357%
36.5/64
49%
31/63
38%
24/64
      
RofChade 2.202 64-bit3278  47%
23.5/50
25%
8/32
     
Schooner 2.2 64-bit327760%
38.5/64
48%
31/64
41%
20.5/50
36%
11.5/32
     
Laser 1.7 64-bit327559%
37/63
45%
28.5/64
39%
19/49
36%
11.5/32
19%
6/31
    
Fritz 17 64-bit327165%
41.5/64
47%
30/64
38%
19/50
34%
11/32
22%
7/32
    
Shredder 13 64-bit327169%
44/64
46%
29/63
43%
21.5/50
33%
10.5/32
33%
10.5/32
    
Defenchess 2.2 64-bit326870%
44.5/64
51%
32.5/64
40%
19/48
38%
12/32
25%
8/32
    
Booot 6.3.1 64-bit3256  44%
22/50
47%
14.5/31
26%
8/31
    
Fizbo 2 64-bit3249 43%
27.5/64
51%
25.5/50
36%
11.5/32
22%
7/32
    
RubiChess 1.7.1 64-bit3243 52%
33/64
44%
22/50
      
Andscacs 0.95 64-bit3230 59%
38/64
52%
26/50
38%
12/32
33%
10.5/32
    
RubiChess 1.6.1.1 64-bit3209  51%
25.5/50
38%
12/32
     
Arasan 22.0 64-bit3181 66%
42.5/64
62%
31/50
50%
16/32
38%
12/32
    
Pedone 2.0 64-bit3176 63%
40.5/64
67%
33.5/50
44%
14/32
39%
12.5/32
    
Chiron 4 64-bit3164 67%
43/64
65%
32.5/50
55%
17.5/32
48%
15/31
    
Critter 1.6a 64-bit3157 75%
48/64
64%
32/50
47%
14.5/31
44%
14/32
    
NameEloSlowChess
Blitz
Classic
2.2
64-bit
SlowChess
Blitz
Classic
2.1
64-bit
SlowChess
Blitz
Classic
2.0
64-bit
SlowChess
Blitz
Classic
1.9
64-bit
SlowChess
Blitz
Classic
1.8
64-bit
SlowChess
Blitz
Classic
1.6
64-bit
SlowChess
Blitz
Classic
1.5
64-bit
SlowChess
Blitz
Classic
1.4
64-bit
Slow
Chess
Blitz
WV2.1
Vajolet2 2.8 64-bit3140   53%
17/32
44%
14/32
    
NirvanaChess 2.4 64-bit3131   47%
15/32
39%
12.5/32
    
Wasp 3.75 64-bit3127   52%
16.5/32
52%
16.5/32
 27%
8.5/32
  
Nemorino 5.00 64-bit3118   61%
19.5/32
59%
19/32
    
iCE 4.0 64-bit3114   52%
16.5/32
41%
13/32
31%
10/32
   
Texel 1.07 64-bit3113   48%
15.5/32
52%
16.5/32
42%
13.5/32
   
Hannibal 1.7 64-bit3111   48%
15.5/32
56%
18/32
42%
13/31
  0%
0/1
Rybka 4.1 64-bit3110   52%
16.5/32
56%
18/32
25%
8/32
   
Protector 1.9.0 64-bit3087   59%
19/32
47%
15/32
42%
13.5/32
28%
9/32
  
Senpai 2.0 64-bit3087   55%
17.5/32
56%
18/32
44%
14/32
36%
11.5/32
  
chess22k 1.13 64-bit3085    53%
17/32
30%
9.5/32
30%
9.5/32
  
Demolito 2019-10-08 64-bit3079    64%
20.5/32
41%
13/32
   
SmarThink 1.98 64-bit3043   62%
20/32
62%
20/32
41%
13/32
45%
14.5/32
  
Naum 4.6 64-bit3032   69%
22/32
72%
23/32
50%
16/32
47%
15/32
  
Deuterium 2019.2.37.73 64-bit3022   67%
21.5/32
70%
22.5/32
42%
13/31
50%
16/32
  
Hakkapeliitta TCEC v2 64-bit3020   73%
23.5/32
59%
19/32
59%
19/32
52%
16.5/32
  
Pirarucu 3.0.7 64-bit3020     50%
16/32
48%
15.5/32
  
Rodent III 0.287 64-bit3005     52%
16/31
42%
13.5/32
  
ChessBrainVB 3.742999     55%
17.5/32
45%
14.5/32
  
Hiarcs 142985     59%
19/32
30%
9.5/32
  
NameEloSlowChess
Blitz
Classic
2.2
64-bit
SlowChess
Blitz
Classic
2.1
64-bit
SlowChess
Blitz
Classic
2.0
64-bit
SlowChess
Blitz
Classic
1.9
64-bit
SlowChess
Blitz
Classic
1.8
64-bit
SlowChess
Blitz
Classic
1.6
64-bit
SlowChess
Blitz
Classic
1.5
64-bit
SlowChess
Blitz
Classic
1.4
64-bit
Slow
Chess
Blitz
WV2.1
Winter 0.7 64-bit2978     50%
15.5/31
41%
13/32
  
Amoeba 3.0 64-bit2974     55%
17/31
50%
16/32
  
Crafty 25.3 64-bit2965     72%
23/32
53%
17/32
  
Bobcat 8.0 64-bit2960     52%
16.5/32
50%
16/32
  
Marvin 3.4.0 64-bit2958     65%
20/31
61%
19.5/32
  
Godel 6.0 64-bit2947     66%
21/32
61%
19.5/32
  
Cheng 4.39 64-bit2942     66%
21/32
52%
16.5/32
  
Spark 1.0 64-bit2927     66%
21/32
58%
18.5/32
  
Dirty CUCUMBER 64-bit2926     73%
23.5/32
58%
18.5/32
  
Igel 2.0.0 64-bit2925     48%
15.5/32
73%
23.5/32
  
Atlas 3.91 64-bit2923     69%
22/32
59%
19/32
  
Spike 1.4 Leiden2920     77%
24.5/32
64%
69/108
 50%
0.5/1
Quazar 0.4 64-bit2901       56%
18/32
11%
3.5/32
Zurichess Neuchatel 64-bit2901       61%
19.5/32
100%
1/1
Daydreamer 2.0.0-pre2 64-bit2892       61%
19.5/32
50%
0.5/1
Bright 0.5c2771       94%
17/18
18%
5.5/31
Twisted Logic 20090922 64-bit2770       83%
15/18
28%
9/32
Frenzee 3.5.19 64-bit2769       83%
15/18
23%
7.5/32
tomitankChess 3.0 64-bit2765       69%
12.5/18
20%
5/25
Jonny 4.002762       72%
13/18
30%
9/30
NameEloSlowChess
Blitz
Classic
2.2
64-bit
SlowChess
Blitz
Classic
2.1
64-bit
SlowChess
Blitz
Classic
2.0
64-bit
SlowChess
Blitz
Classic
1.9
64-bit
SlowChess
Blitz
Classic
1.8
64-bit
SlowChess
Blitz
Classic
1.6
64-bit
SlowChess
Blitz
Classic
1.5
64-bit
SlowChess
Blitz
Classic
1.4
64-bit
Slow
Chess
Blitz
WV2.1
BugChess2 1.9 64-bit2760       78%
14/18
27%
8.5/31
Chronos 1.9.9 64-bit2739       78%
14/18
30%
9.5/32
Shield 2.1 64-bit2737       81%
14.5/18
0%
0/1
Chess Tiger 2007.12713       75%
13.5/18
37%
40/109
Colossus 2008b2641       100%
4/4
48%
38/79
Cyrano 0.6b17 64-bit2641       88%
3.5/4
43%
27.5/64
Rodin 8.02638       75%
3/4
49%
16.5/34
Sjakk 2.2 64-bit2637       75%
3/4
53%
17/32
E.T. Chess 13.01.082634       100%
4/4
52%
16.5/32
WyldChess 1.51 64-bit2628       100%
4/4
50%
16/32
Orion 0.6 64-bit2624       100%
4/4
50%
16/32
WildCat 82624       75%
3/4
49%
33/67
Movei 00.8.438 (10 10 10)2622       75%
3/4
54%
21.5/40
Sloppy 0.2.2 64-bit2616       100%
4/4
43%
15/35
Rotor 0.82612       100%
4/4
67%
21.5/32
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%

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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 July 4, 2020