CCRL Blitz
Downloads and Statistics
October 24, 2020
Testing summary:
Total: 2'392'106 games
played by 2'834 programs

White wins: 921'308 (38.5%)
Black wins: 740'794 (31.0%)
Draws: 730'004 (30.5%)
White score: 53.8%

Custom engine selection

Comparing 14 engines!
14 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 October 24, 2020 with Bayeselo based on 2'392'106 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+
1Zevra 2.1.2 r248 64-bit2422+17−1849.9%−1.322.8%1198 
82.9%
 Zevra 2.0 r172 64-bit2405+31−3066.7%−123.020.1%413
92.9%
 Zevra 2.1.1 r216 64-bit2379+18−1844.1%+43.420.9%1187
100.0%
 Zevra 1.8.6 r672 64-bit2302+18−1847.9%+14.925.2%1137
96.8%
 Zevra 1.8.5 r664 64-bit2273+25−2557.9%−59.124.5%567
99.9%
 Zevra 1.8.4 r650 64-bit2219+20−2045.5%+36.522.4%897
60.6%
 Zevra 1.8.3 r636 64-bit2215+20−2052.0%−14.620.4%894
99.9%
 Zevra 1.8.1 r594 64-bit2152+32−3167.9%−132.617.8%410
100.0%
 Zevra 1.6.1 r512 64-bit1953+20−2048.9%+7.723.9%884
84.1%
 Zevra 1.6.1 r5136 64-bit1935+30−3046.9%+23.226.6%384
98.4%
 Zevra 1.5 r446 64-bit1890+28−2854.0%−30.817.5%475
82.0%
 Zevra 1.6 r4971870+31−3145.5%+32.819.8%379
100.0%
 Zevra 1.31 r3401766+26−2649.3%+5.221.5%543
74.9%
 Zevra 1.21 r2901753+28−2837.6%+91.527.1%458
 

Results matrix

Custom engine selection
#NameElo1234567891011121314
1Zevra 2.1.2 r248 64-bit2422              
2Zevra 2.0 r172 64-bit2405              
3Zevra 2.1.1 r216 64-bit2379              
4Zevra 1.8.6 r672 64-bit2302              
5Zevra 1.8.5 r664 64-bit2273              
6Zevra 1.8.4 r650 64-bit2219              
7Zevra 1.8.3 r636 64-bit2215              
8Zevra 1.8.1 r594 64-bit2152              
9Zevra 1.6.1 r512 64-bit1953              
10Zevra 1.6.1 r5136 64-bit1935              
11Zevra 1.5 r446 64-bit1890              
12Zevra 1.6 r4971870              
13Zevra 1.31 r3401766              
14Zevra 1.21 r2901753              
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
#NameElo1234567891011121314
1Zevra 2.1.2 r248 64-bit2422 82.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Zevra 2.0 r172 64-bit240517.1 92.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Zevra 2.1.1 r216 64-bit23790.07.1 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
4Zevra 1.8.6 r672 64-bit23020.00.00.0 96.8100.0100.0100.0100.0100.0100.0100.0100.0100.0
5Zevra 1.8.5 r664 64-bit22730.00.00.03.2 99.9100.0100.0100.0100.0100.0100.0100.0100.0
6Zevra 1.8.4 r650 64-bit22190.00.00.00.00.1 60.6100.0100.0100.0100.0100.0100.0100.0
7Zevra 1.8.3 r636 64-bit22150.00.00.00.00.039.4 99.9100.0100.0100.0100.0100.0100.0
8Zevra 1.8.1 r594 64-bit21520.00.00.00.00.00.00.1 100.0100.0100.0100.0100.0100.0
9Zevra 1.6.1 r512 64-bit19530.00.00.00.00.00.00.00.0 84.1100.0100.0100.0100.0
10Zevra 1.6.1 r5136 64-bit19350.00.00.00.00.00.00.00.015.9 98.499.8100.0100.0
11Zevra 1.5 r446 64-bit18900.00.00.00.00.00.00.00.00.01.6 82.0100.0100.0
12Zevra 1.6 r49718700.00.00.00.00.00.00.00.00.00.218.0 100.0100.0
13Zevra 1.31 r34017660.00.00.00.00.00.00.00.00.00.00.00.0 74.9
14Zevra 1.21 r29017530.00.00.00.00.00.00.00.00.00.00.00.025.1 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo1234567891011121314
1Zevra 2.1.2 r248 64-bit2422 0130000600000000
2Zevra 2.0 r172 64-bit24050 02701383761670000000
3Zevra 2.1.1 r216 64-bit237913000 630600000000
4Zevra 1.8.6 r672 64-bit2302027063 82211640000000
5Zevra 1.8.5 r664 64-bit22730138082 5492483000000
6Zevra 1.8.4 r650 64-bit221963766211549 5330000000
7Zevra 1.8.3 r636 64-bit22150167064248533 0000000
8Zevra 1.8.1 r594 64-bit21520000300 30730059033
9Zevra 1.6.1 r512 64-bit19530000000307 2462383610236
10Zevra 1.6.1 r5136 64-bit19350000000300246 1145800
11Zevra 1.5 r446 64-bit1890000000059238114 237157246
12Zevra 1.6 r49718700000000036158237 0161
13Zevra 1.31 r340176600000003001570 394
14Zevra 1.21 r2901753000000032360246161394 
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
#NameElo1234567891011121314
1Zevra 2.1.2 r248 64-bit2422 0.054.50.00.00.30.00.00.00.00.00.00.00.0
2Zevra 2.0 r172 64-bit24050.0 0.017.414.128.712.80.00.00.00.00.00.00.0
3Zevra 2.1.1 r216 64-bit237954.50.0 2.70.00.30.00.00.00.00.00.00.00.0
4Zevra 1.8.6 r672 64-bit23020.017.42.7 4.810.43.20.00.00.00.00.00.00.0
5Zevra 1.8.5 r664 64-bit22730.014.10.04.8 37.517.00.30.00.00.00.00.00.0
6Zevra 1.8.4 r650 64-bit22190.328.70.310.437.5 29.80.00.00.00.00.00.00.0
7Zevra 1.8.3 r636 64-bit22150.012.80.03.217.029.8 0.00.00.00.00.00.00.0
8Zevra 1.8.1 r594 64-bit21520.00.00.00.00.30.00.0 23.737.86.70.00.30.3
9Zevra 1.6.1 r512 64-bit19530.00.00.00.00.00.00.023.7 19.417.528.60.017.6
10Zevra 1.6.1 r5136 64-bit19350.00.00.00.00.00.00.037.819.4 13.37.60.00.0
11Zevra 1.5 r446 64-bit18900.00.00.00.00.00.00.06.717.513.3 27.815.426.4
12Zevra 1.6 r49718700.00.00.00.00.00.00.00.028.67.627.8 0.019.2
13Zevra 1.31 r34017660.00.00.00.00.00.00.00.30.00.015.40.0 39.4
14Zevra 1.21 r29017530.00.00.00.00.00.00.00.317.60.026.419.239.4 
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 78 common opponents

Custom engine selection
NameEloZevra
2.1.2
r248
64-bit
Zevra
2.0
r172
64-bit
Zevra
2.1.1
r216
64-bit
Zevra
1.8.6
r672
64-bit
Zevra
1.8.5
r664
64-bit
Zevra
1.8.4
r650
64-bit
Zevra
1.8.3
r636
64-bit
Zevra
1.8.1
r594
64-bit
Zevra
1.6.1
r512
64-bit
Zevra
1.6.1
r5136
64-bit
Zevra
1.5
r446
64-bit
Zevra
1.6
r497
Zevra
1.31
r340
Zevra
1.21
r290
Anatoli 0.35k245842%
13.5/32
 52%
16.5/32
           
LittleThought 1.052 64-bit245352%
16.5/32
 47%
15/32
           
Matacz 1.4244547%
15/32
 55%
17.5/32
           
Lozza 1.18 64-bit244242%
13.5/32
 44%
14/32
           
Ares 1.005.2 64-bit244150%
15.5/31
 33%
10.5/32
           
SpiderChess 070603243955%
17.5/32
 44%
14/32
           
MadChess 2.2 64-bit243761%
19.5/32
 42%
13.5/32
           
King of Kings 2.56243355%
17.5/32
 52%
16/31
           
LambChop 10.99243355%
17.5/32
 50%
16/32
           
Nemeton 1.82433  48%
15.5/32
37%
11.5/31
          
Abrok 5.0243256%
18/32
 34%
11/32
           
Eeyore 1.52 64-bit242950%
16/32
 62%
20/32
           
Gaia 3.5 64-bit242447%
14.5/31
 33%
12/36
           
Nejmet 3.07242453%
17/32
 39%
13.5/35
           
Hussar 0.4242142%
13.5/32
 39%
13.5/35
  100%
1/1
        
Dragon 4.6241759%
19/32
 53%
18.5/35
  50%
0.5/1
        
RomiChess P3n 64-bit241250%
16/32
 44%
13.5/31
           
Simplex 0.9.8 64-bit240752%
16.5/32
 36%
12.5/35
           
Ifrit m1.8 64-bit240659%
19/32
 44%
15.5/35
           
Taltos rev118 64-bit239553%
17/32
 50%
16/32
           
NameEloZevra
2.1.2
r248
64-bit
Zevra
2.0
r172
64-bit
Zevra
2.1.1
r216
64-bit
Zevra
1.8.6
r672
64-bit
Zevra
1.8.5
r664
64-bit
Zevra
1.8.4
r650
64-bit
Zevra
1.8.3
r636
64-bit
Zevra
1.8.1
r594
64-bit
Zevra
1.6.1
r512
64-bit
Zevra
1.6.1
r5136
64-bit
Zevra
1.5
r446
64-bit
Zevra
1.6
r497
Zevra
1.31
r340
Zevra
1.21
r290
Giraffe 20161023 64-bit237155%
17.5/32
 58%
21.5/37
           
Amateur 2.822351   45%
14.5/32
 33%
8/24
        
Aice 0.99.22316 60%
14.5/24
 48%
15.5/32
 21%
5/24
        
Isa 2.0.64 64-bit2314 65%
15.5/24
 48%
9.5/20
          
Sungorus 1.4 64-bit2311 52%
12.5/24
 45%
14.5/32
          
Asterisk 0.62307 66%
16.5/25
   40%
8.5/21
        
Averno 0.812307 62%
15.5/25
 48%
15.5/32
          
KnightX 1.922296 70%
17.5/25
 58%
18.5/32
          
Rival 1.0.1 64-bit2267   55%
17.5/32
 100%
1/1
        
Natwarlal 0.142261   61%
19.5/32
52%
26/50
         
Napoleon 1.8 64-bit2253   58%
18.5/32
  38%
12/32
       
FireFly 2.7.2 64-bit2252   61%
19.5/32
 49%
32.5/67
        
Robocide 20170718 64-bit2235     50%
33.5/67
44%
14/32
       
Anechka 0.082234    63%
32/51
57%
38.5/68
60%
18/30
       
Ant 2006-F2232    54%
27.5/51
61%
19/31
        
GopherCheck 0.2.3 64-bit2232 85%
20.5/24
   54%
35.5/66
55%
17/31
       
AliChess 4.252228    44%
22/50
46%
31.5/68
45%
14.5/32
       
Joker2 0.7.7 64-bit2223 71%
17/24
   43%
28.5/67
        
Adam 3.32221 73%
17.5/24
  71%
35.5/50
46%
31/68
41%
13/32
       
Exacto 0.e 64-bit2220 98%
21.5/22
  47%
22.5/48
47%
30/64
        
NameEloZevra
2.1.2
r248
64-bit
Zevra
2.0
r172
64-bit
Zevra
2.1.1
r216
64-bit
Zevra
1.8.6
r672
64-bit
Zevra
1.8.5
r664
64-bit
Zevra
1.8.4
r650
64-bit
Zevra
1.8.3
r636
64-bit
Zevra
1.8.1
r594
64-bit
Zevra
1.6.1
r512
64-bit
Zevra
1.6.1
r5136
64-bit
Zevra
1.5
r446
64-bit
Zevra
1.6
r497
Zevra
1.31
r340
Zevra
1.21
r290
CT800 1.20 64-bit2217     45%
13.5/30
55%
17.5/32
       
RamJet 0.132212 67%
16/24
    48%
15.5/32
       
Madeleine 0.22184    50%
0.5/1
 52%
16.5/32
       
Gunborg 1.35 64-bit2073    100%
1/1
  52%
14.5/28
      
Little Wing 0.4.0 64-bit2016       70%
19.5/28
48%
15/31
     
Leonidas 8.3 64-bit2005       71%
20/28
 43%
12.5/29
    
Gullydeckel 2.16pl11993       70%
21/30
45%
14/31
     
Embla 1.0.1 64-bit1988        44%
14/32
37%
11/30
    
Bubble 1.51987       77%
23/30
 40%
12/30
    
BigLion 2.23x1986       72%
21.5/30
44%
14/32
     
Arabian Knight 1.55 64-bit1979       100%
1/1
 40%
12/30
    
La Dame Blanche 2.0c1969       80%
24/30
 42%
12.5/30
    
SSEChessII 2.05 DC1967       78%
23.5/30
45%
14.5/32
63%
19/30
    
Mustang 4.971964       100%
1/1
48%
13.5/28
    17%
8.5/49
Eia 0.31957       65%
19.5/30
47%
14/30
47%
14/30
38%
11/29
   
Chess4j 3.2 64-bit1956        55%
17.5/32
53%
16/30
    
JanWillem 1.131952        67%
21.5/32
  40%
12/30
  
Smash 1.0.31924           47%
13.5/29
 0%
0/1
IACH 0.56z1917        52%
15/29
 53%
16/30
   
Embla 0.9.9 64-bit1916        57%
17/30
 42%
12.5/30
   
NameEloZevra
2.1.2
r248
64-bit
Zevra
2.0
r172
64-bit
Zevra
2.1.1
r216
64-bit
Zevra
1.8.6
r672
64-bit
Zevra
1.8.5
r664
64-bit
Zevra
1.8.4
r650
64-bit
Zevra
1.8.3
r636
64-bit
Zevra
1.8.1
r594
64-bit
Zevra
1.6.1
r512
64-bit
Zevra
1.6.1
r5136
64-bit
Zevra
1.5
r446
64-bit
Zevra
1.6
r497
Zevra
1.31
r340
Zevra
1.21
r290
Eagle 0.7.51911        43%
13/30
  47%
13.5/29
 35%
16/46
Dabbaba 7.491907        58%
17.5/30
    31%
15.5/50
Warrior 1.0.31907        57%
17/30
 38%
11.5/30
33%
10/30
  
Morphy 3.221902        43%
13/30
  52%
15.5/30
  
Clueless 1.41901        65%
19.5/30
  48%
14.5/30
  
SnailChess 4.0131893        55%
16.5/30
  50%
15/30
 50%
0.5/1
MrChess 2.11886          47%
14/30
43%
13/30
 33%
16.5/50
Purple Haze 2.1.01881          58%
17.5/30
58%
17.5/30
  
Roce 0.03901853          60%
18/30
  0%
0/1
Deepov 0.4.1 64-bit1852         64%
18/28
48%
13/27
52%
15.5/30
  
HeavyChess 0.13 beta1831          62%
18.5/30
  100%
1/1
Celes 0.77c1824          50%
15/30
  54%
27/50
Beaches 2.321797            52%
25.5/49
47%
23.5/50
Enigma 1.1.41790            58%
29/50
35%
17/48
Embracer 1.121785       100%
1/1
    53%
26.5/50
 
Pulsar 2009-9b1767          57%
16.5/29
 53%
26/49
 
Robin 0.9831762          85%
25.5/30
 46%
22.5/49
42%
21/50
Lodocase 2402081754            44%
22/50
47%
22.5/48
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 October 24, 2020