CCRL Blitz
Downloads and Statistics
October 17, 2020
Testing summary:
Total: 2'387'265 games
played by 2'826 programs

White wins: 919'531 (38.5%)
Black wins: 739'461 (31.0%)
Draws: 728'273 (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 17, 2020 with Bayeselo based on 2'387'265 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%−1.922.8%1198 
82.9%
 Zevra 2.0 r172 64-bit2404+31−3066.7%−122.720.1%413
92.9%
 Zevra 2.1.1 r216 64-bit2378+18−1844.1%+43.820.9%1187
100.0%
 Zevra 1.8.6 r672 64-bit2301+18−1847.9%+15.325.2%1137
96.8%
 Zevra 1.8.5 r664 64-bit2272+25−2557.9%−59.024.5%567
99.9%
 Zevra 1.8.4 r650 64-bit2218+20−2045.5%+36.622.4%897
60.7%
 Zevra 1.8.3 r636 64-bit2214+20−2052.0%−14.520.4%894
99.9%
 Zevra 1.8.1 r594 64-bit2152+32−3167.9%−133.617.8%410
100.0%
 Zevra 1.6.1 r512 64-bit1953+20−2048.9%+7.023.9%884
84.1%
 Zevra 1.6.1 r5136 64-bit1934+30−3046.9%+23.426.6%384
98.4%
 Zevra 1.5 r446 64-bit1889+28−2854.0%−30.617.5%475
82.0%
 Zevra 1.6 r4971870+31−3145.5%+32.119.8%379
100.0%
 Zevra 1.31 r3401766+26−2649.3%+4.521.5%543
74.9%
 Zevra 1.21 r2901753+28−2837.6%+90.827.1%458
 

Results matrix

Custom engine selection
#NameElo1234567891011121314
1Zevra 2.1.2 r248 64-bit2422              
2Zevra 2.0 r172 64-bit2404              
3Zevra 2.1.1 r216 64-bit2378              
4Zevra 1.8.6 r672 64-bit2301              
5Zevra 1.8.5 r664 64-bit2272              
6Zevra 1.8.4 r650 64-bit2218              
7Zevra 1.8.3 r636 64-bit2214              
8Zevra 1.8.1 r594 64-bit2152              
9Zevra 1.6.1 r512 64-bit1953              
10Zevra 1.6.1 r5136 64-bit1934              
11Zevra 1.5 r446 64-bit1889              
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-bit240417.1 92.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Zevra 2.1.1 r216 64-bit23780.07.1 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
4Zevra 1.8.6 r672 64-bit23010.00.00.0 96.8100.0100.0100.0100.0100.0100.0100.0100.0100.0
5Zevra 1.8.5 r664 64-bit22720.00.00.03.2 99.9100.0100.0100.0100.0100.0100.0100.0100.0
6Zevra 1.8.4 r650 64-bit22180.00.00.00.00.1 60.7100.0100.0100.0100.0100.0100.0100.0
7Zevra 1.8.3 r636 64-bit22140.00.00.00.00.039.3 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-bit19340.00.00.00.00.00.00.00.015.9 98.499.8100.0100.0
11Zevra 1.5 r446 64-bit18890.00.00.00.00.00.00.00.00.01.6 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-bit24040 02701383761670000000
3Zevra 2.1.1 r216 64-bit237813000 630600000000
4Zevra 1.8.6 r672 64-bit2301027063 82211640000000
5Zevra 1.8.5 r664 64-bit22720138082 5492483000000
6Zevra 1.8.4 r650 64-bit221863766211549 5330000000
7Zevra 1.8.3 r636 64-bit22140167064248533 0000000
8Zevra 1.8.1 r594 64-bit21520000300 30730059033
9Zevra 1.6.1 r512 64-bit19530000000307 2462383610236
10Zevra 1.6.1 r5136 64-bit19340000000300246 1145800
11Zevra 1.5 r446 64-bit1889000000059238114 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-bit24040.0 0.017.414.128.712.80.00.00.00.00.00.00.0
3Zevra 2.1.1 r216 64-bit237854.50.0 2.70.00.30.00.00.00.00.00.00.00.0
4Zevra 1.8.6 r672 64-bit23010.017.42.7 4.810.43.20.00.00.00.00.00.00.0
5Zevra 1.8.5 r664 64-bit22720.014.10.04.8 37.517.00.30.00.00.00.00.00.0
6Zevra 1.8.4 r650 64-bit22180.328.70.310.437.5 29.80.00.00.00.00.00.00.0
7Zevra 1.8.3 r636 64-bit22140.012.80.03.217.029.8 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-bit19340.00.00.00.00.00.00.037.819.4 13.37.60.00.0
11Zevra 1.5 r446 64-bit18890.00.00.00.00.00.00.06.717.513.3 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 0.35k245742%
13.5/32
 52%
16.5/32
           
LittleThought 1.052 64-bit245252%
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-bit244050%
15.5/31
 33%
10.5/32
           
SpiderChess 070603243955%
17.5/32
 44%
14/32
           
MadChess 2.2 64-bit243661%
19.5/32
 42%
13.5/32
           
LambChop 10.99243355%
17.5/32
 50%
16/32
           
Abrok 5.0243256%
18/32
 34%
11/32
           
King of Kings 2.56243255%
17.5/32
 52%
16/31
           
Nemeton 1.82432  48%
15.5/32
37%
11.5/31
          
Eeyore 1.52 64-bit242850%
16/32
 62%
20/32
           
Gaia 3.5 64-bit242347%
14.5/31
 33%
12/36
           
Nejmet 3.07242353%
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
           
Ifrit m1.8 64-bit240659%
19/32
 44%
15.5/35
           
Simplex 0.9.8 64-bit240652%
16.5/32
 36%
12.5/35
           
Taltos rev118 64-bit239453%
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-bit237055%
17.5/32
 58%
21.5/37
           
Amateur 2.822350   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
          
Averno 0.812307 62%
15.5/25
 48%
15.5/32
          
Asterisk 0.62306 66%
16.5/25
   40%
8.5/21
        
KnightX 1.922296 70%
17.5/25
 58%
18.5/32
          
Rival 1.0.1 64-bit2266   55%
17.5/32
 100%
1/1
        
Natwarlal 0.142260   61%
19.5/32
52%
26/50
         
Napoleon 1.8 64-bit2253   58%
18.5/32
  38%
12/32
       
FireFly 2.7.2 64-bit2251   61%
19.5/32
 49%
32.5/67
        
Robocide 20170718 64-bit2235     50%
33.5/67
44%
14/32
       
Anechka 0.082233    63%
32/51
57%
38.5/68
60%
18/30
       
Ant 2006-F2231    54%
27.5/51
61%
19/31
        
GopherCheck 0.2.3 64-bit2230 85%
20.5/24
   54%
35.5/66
55%
17/31
       
AliChess 4.252227    44%
22/50
46%
31.5/68
45%
14.5/32
       
Joker2 0.7.7 64-bit2222 71%
17/24
   43%
28.5/67
        
Adam 3.32219 73%
17.5/24
  71%
35.5/50
46%
31/68
41%
13/32
       
Exacto 0.e 64-bit2219 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-bit2216     45%
13.5/30
55%
17.5/32
       
RamJet 0.132211 67%
16/24
    48%
15.5/32
       
Madeleine 0.22183    50%
0.5/1
 52%
16.5/32
       
Gunborg 1.35 64-bit2070    100%
1/1
  52%
14.5/28
      
Little Wing 0.4.0 64-bit2015       70%
19.5/28
48%
15/31
     
Leonidas 8.3 64-bit2004       71%
20/28
 43%
12.5/29
    
Gullydeckel 2.16pl11992       70%
21/30
45%
14/31
     
Embla 1.0.1 64-bit1987        44%
14/32
37%
11/30
    
Bubble 1.51986       77%
23/30
 40%
12/30
    
BigLion 2.23x1985       72%
21.5/30
44%
14/32
     
Arabian Knight 1.55 64-bit1979       100%
1/1
 40%
12/30
    
La Dame Blanche 2.0c1968       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 0.31956       65%
19.5/30
47%
14/30
47%
14/30
38%
11/29
   
Chess4j 3.2 64-bit1955        55%
17.5/32
53%
16/30
    
JanWillem 1.131951        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-bit1915        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 7.491906        58%
17.5/30
    31%
15.5/50
Warrior 1.0.31906        57%
17/30
 38%
11.5/30
33%
10/30
  
Morphy 3.221901        43%
13/30
  52%
15.5/30
  
Clueless 1.41900        65%
19.5/30
  48%
14.5/30
  
SnailChess 4.0131892        55%
16.5/30
  50%
15/30
 50%
0.5/1
MrChess 2.11885          47%
14/30
43%
13/30
 33%
16.5/50
Purple Haze 2.1.01880          58%
17.5/30
58%
17.5/30
  
Roce 0.03901853          60%
18/30
  0%
0/1
Deepov 0.4.1 64-bit1851         64%
18/28
48%
13/27
52%
15.5/30
  
HeavyChess 0.13 beta1830          62%
18.5/30
  100%
1/1
Celes 0.77c1823          50%
15/30
  54%
27/50
Beaches 2.321797            52%
25.5/49
47%
23.5/50
Enigma 1.1.41789            58%
29/50
35%
17/48
Embracer 1.121784       100%
1/1
    53%
26.5/50
 
Pulsar 2009-9b1767          57%
16.5/29
 53%
26/49
 
Robin 0.9831761          85%
25.5/30
 46%
22.5/49
42%
21/50
Lodocase 2402081753            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 17, 2020