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 6 engines!
6 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+
1Barbarossa 0.6.0 64-bit2515+29−2966.2%−124.116.3%472 
100.0%
 Barbarossa 0.5.0 64-bit2377+23−2348.2%+13.720.8%686
100.0%
 Barbarossa 0.4.0 64-bit2317+12−1248.6%+9.419.9%2635
100.0%
 Barbarossa 0.3.0 64-bit2197+18−1854.3%−43.115.7%1278
100.0%
 Barbarossa 0.1.01831+37−3662.1%−92.216.7%318
100.0%
 Abulafia 0.611415+38−3933.0%+161.114.9%356
 

Results matrix

Custom engine selection
#NameElo123456
1Barbarossa 0.6.0 64-bit2515      
2Barbarossa 0.5.0 64-bit2377      
3Barbarossa 0.4.0 64-bit2317      
4Barbarossa 0.3.0 64-bit2197      
5Barbarossa 0.1.01831      
6Abulafia 0.611415      
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
#NameElo123456
1Barbarossa 0.6.0 64-bit2515 100.0100.0100.0100.0100.0
2Barbarossa 0.5.0 64-bit23770.0 100.0100.0100.0100.0
3Barbarossa 0.4.0 64-bit23170.00.0 100.0100.0100.0
4Barbarossa 0.3.0 64-bit21970.00.00.0 100.0100.0
5Barbarossa 0.1.018310.00.00.00.0 100.0
6Abulafia 0.6114150.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo123456
1Barbarossa 0.6.0 64-bit2515 12972000
2Barbarossa 0.5.0 64-bit2377129 69333600
3Barbarossa 0.4.0 64-bit231772693 68700
4Barbarossa 0.3.0 64-bit21970336687 015
5Barbarossa 0.1.018310000 90
6Abulafia 0.6114150001590 
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
#NameElo123456
1Barbarossa 0.6.0 64-bit2515 11.12.30.00.00.0
2Barbarossa 0.5.0 64-bit237711.1 20.917.10.00.0
3Barbarossa 0.4.0 64-bit23172.320.9 17.60.00.0
4Barbarossa 0.3.0 64-bit21970.017.117.6 0.00.9
5Barbarossa 0.1.018310.00.00.00.0 13.4
6Abulafia 0.6114150.00.00.00.913.4 
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 32 common opponents

Custom engine selection
NameEloBarbarossa
0.6.0
64-bit
Barbarossa
0.5.0
64-bit
Barbarossa
0.4.0
64-bit
Barbarossa
0.3.0
64-bit
Barbarossa
0.1.0
Abulafia
0.61
TJchess 1.3 64-bit239972%
23/32
 50%
1/2
   
Taltos rev118 64-bit239673%
23.5/32
46%
18.5/40
    
PostModernist 1016239169%
22/32
60%
15/25
0%
0/1
   
Amy 0.87b238476%
23.5/31
 100%
2/2
   
Diablo 0.5.1238472%
23/32
 0%
0/1
   
Giraffe 20161023 64-bit237347%
14.5/31
 37%
8.5/23
   
Lozza 1.16 64-bit2360  34%
13/38
38%
12/32
  
Alex 2.14a 64-bit2348 0%
0/1
52%
16.5/32
23%
7.5/32
  
Popochin 4.1 64-bit2348 50%
0.5/1
44%
14/32
   
Plisk 0.2.7d 64-bit2344 56%
14.5/26
29%
11.5/39
30%
8/27
  
Horizon 4.42343 64%
16/25
38%
33.5/88
23%
7/31
  
Queen 4.032336  53%
17/32
28%
9/32
  
Arion 1.72333 64%
16/25
41%
33/80
27%
8.5/31
  
EveAnn 1.722329 42%
10.5/25
43%
10/23
   
Sorgenkind 0.42327 46%
10.5/23
39%
31.5/80
   
Sage 3.532324 74%
18.5/25
53%
23.5/44
27%
8.5/32
  
Chezzz 1.0.32321 69%
16.5/24
43%
19.5/45
22%
6.5/30
  
Gibbon 2.69a 64-bit2320 48%
11/23
62%
21/34
76%
23.5/31
  
Aice 0.99.22317 0%
0/1
47%
16/34
   
Isa 2.0.64 64-bit2314 54%
13/24
38%
8/21
   
NameEloBarbarossa
0.6.0
64-bit
Barbarossa
0.5.0
64-bit
Barbarossa
0.4.0
64-bit
Barbarossa
0.3.0
64-bit
Barbarossa
0.1.0
Abulafia
0.61
Waxman 20172305 82%
20.5/25
46%
16/35
   
Thor's Hammer 2.29 64-bit2294 50%
11/22
36%
9/25
   
Anechka 0.082234 100%
1/1
100%
1/1
48%
15.5/32
  
Ant 2006-F2230  50%
0.5/1
48%
15/31
  
AliChess 4.252227  100%
1/1
38%
11.5/30
  
Adam 3.32220  100%
1/1
40%
12/30
  
Buzz 0.08 64-bit2210  100%
1/1
44%
14/32
  
SjaakII 1.3.0 64-bit2168  100%
1/1
62%
12.5/20
  
Lime 662143  100%
1/1
55%
16/29
  
SamChess1923   92%
29.5/32
 0%
0/5
Kitteneitor 0.22.11715    64%
25/39
13%
3.5/27
Numpty DD1410    97%
18.5/19
94%
7.5/8
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