CCRL Blitz
Downloads and Statistics
September 19, 2020
Testing summary:
Total: 2'370'030 games
played by 2'800 programs

White wins: 913'140 (38.5%)
Black wins: 734'658 (31.0%)
Draws: 722'232 (30.5%)
White score: 53.8%

Free 32-bit 4-CPU engines

Comparing 20 engines!
10 best versions of selected engines played 137 games with each other

CCRL Blitz Rating List — Free 32-bit 4-CPU engines (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 September 19, 2020 with Bayeselo based on 2'370'030 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+
1Lc0 0.25.1 t40-1541 RTX20803642+18−1868.7%−123.854.1%934 
98.2%
 Lc0 0.23.1 w42850 RTX20803618+13−1262.1%−74.367.8%1789
98.4%
 Lc0 0.22.0 w49921 RTX20803596+15−1563.8%−81.865.5%1292
92.1%
 Allie 0.5 nn42850 RTX20803570+32−3253.6%−24.265.2%253
79.2%
2Allie 0.5 nn49921 RTX20803556+13−1347.0%+9.068.0%1714
100.0%
3ChessBrainVB 3.74 4CPU3170+14−1454.2%−27.441.9%1596
100.0%
 ChessBrainVB 3.70 4CPU3117+17−1750.5%−4.543.0%1060
100.0%
4Spike 1.4 Leiden 4CPU3040+8−841.2%+61.338.2%5347
100.0%
5Toga II 3.0 4CPU2931+17−1725.3%+196.228.5%1459
97.3%
6Bright 0.4a 4CPU2911+11−1142.4%+50.733.9%3023
72.0%
 Bright 0.5c 4CPU2906+14−1437.4%+86.735.8%1858
55.7%
 Toga II 1.4 beta5c 4CPU2905+9−935.7%+105.033.9%5355
75.6%
 Toga II 1.4.1SE 4CPU2900+11−1144.9%+37.535.8%3128
100.0%
 Bright 0.3a 4CPU2854+14−1443.7%+40.834.6%1756
100.0%
 Bright 0.2c 4CPU2813+17−1735.5%+101.830.1%1244
100.0%
7Glaurung 1.2.1 32-bit 4CPU2770+15−1543.2%+45.933.8%1495
99.9%
8Scorpio 2.0 32-bit 4CPU2731+20−2029.1%+154.229.4%1005
100.0%
9Pharaon 3.5.1 4CPU2674+24−2441.7%+58.228.9%634
100.0%
10Nemeton 1.81 4CPU2490+24−2451.1%−7.424.5%600
80.3%
 Nemeton 1.7 4CPU2473+30−3149.1%+6.624.4%377
 

Results matrix

Free 32-bit 4-CPU engines (best versions only)
#NameElo12345678910
1Lc0 0.25.1 t40-1541 RTX20803642 32.5 − 15.5
+19−2=27
+15
        
2Allie 0.5 nn49921 RTX2080355615.5 − 32.5
+2−19=27
−15
         
3ChessBrainVB 3.74 4CPU3170          
4Spike 1.4 Leiden 4CPU3040    32 − 18
+23−9=18
−17
     
5Toga II 3.0 4CPU2931   18 − 32
+9−23=18
+17
      
6Bright 0.4a 4CPU2911          
7Glaurung 1.2.1 32-bit 4CPU2770          
8Scorpio 2.0 32-bit 4CPU2731        22 − 17
+15−10=14
−13
 
9Pharaon 3.5.1 4CPU2674       17 − 22
+10−15=14
+13
  
10Nemeton 1.81 4CPU2490          
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

Free 32-bit 4-CPU engines (best versions only)
#NameElo12345678910
1Lc0 0.25.1 t40-1541 RTX20803642 100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Allie 0.5 nn49921 RTX208035560.0 100.0100.0100.0100.0100.0100.0100.0100.0
3ChessBrainVB 3.74 4CPU31700.00.0 100.0100.0100.0100.0100.0100.0100.0
4Spike 1.4 Leiden 4CPU30400.00.00.0 100.0100.0100.0100.0100.0100.0
5Toga II 3.0 4CPU29310.00.00.00.0 97.3100.0100.0100.0100.0
6Bright 0.4a 4CPU29110.00.00.00.02.7 100.0100.0100.0100.0
7Glaurung 1.2.1 32-bit 4CPU27700.00.00.00.00.00.0 99.9100.0100.0
8Scorpio 2.0 32-bit 4CPU27310.00.00.00.00.00.00.1 100.0100.0
9Pharaon 3.5.1 4CPU26740.00.00.00.00.00.00.00.0 100.0
10Nemeton 1.81 4CPU24900.00.00.00.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

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Rating list
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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

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Match length (Minimum number of games to highlight with color):

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Sort cross-tables by:   Rating   Name
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Reference rating list:
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Created in 2005-2013 by CCRL team
Last games added on September 19, 2020