CCRL 40/15
Downloads and Statistics
March 28, 2020
Testing summary:
Total: 1'132'680 games
played by 2'634 programs

White wins: 391'782 (34.6%)
Black wins: 290'390 (25.6%)
Draws: 450'508 (39.8%)
White score: 54.5%

Free 32-bit multi-CPU engines

Comparing 17 engines!
9 best versions of selected engines played 95 games with each other

CCRL 40/15 Rating List — Free 32-bit multi-CPU engines (Quote)

Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 15 minutes on an Intel i7-4770k.
Computed on March 28, 2020 with Bayeselo based on 1'132'680 games

Color legend: Commercial, Free, Open source, Private.
Bold font - tested with 200 games or more. Normal font - less than 200 games.

RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
Elo+
1ChessBrainVB 3.72 4CPU3168+30−3045.0%+30.451.3%320 
51.9%
 ChessBrainVB 3.74 4CPU3164+128−13046.9%+18.056.3%16
72.3%
 ChessBrainVB 3.68 4CPU3124+26−2649.2%+4.651.6%428
82.1%
 ChessBrainVB 3.66 4CPU3106+28−2854.2%−26.748.7%378
100.0%
2Spike 1.4 Leiden 4CPU3017+11−1145.2%+29.247.7%2862
100.0%
3Toga II 3.0 4CPU2919+22−2245.6%+27.449.0%592
86.7%
 Toga II 1.4.1SE 4CPU2904+13−1348.5%+11.141.6%2041
79.0%
4Bright 0.4a 4CPU2897+15−1547.4%+16.641.1%1495
65.1%
 Bright 0.5c 4CPU2891+23−2347.2%+19.442.9%616
65.6%
 Toga II 1.4 beta5c 4CPU2885+18−1851.7%−11.945.8%996
100.0%
 Bright 0.3a 4CPU2830+18−1842.4%+51.041.8%988
80.9%
5Jonny 4.00 4CPU2816+25−2543.6%+42.335.0%540
72.1%
 Bright 0.2c 4CPU2806+21−2143.9%+40.143.2%724
100.0%
6Scorpio 2.0 32-bit 4CPU2732+24−2433.4%+114.936.7%607
98.5%
7Hamsters 0.7.1 4CPU2686+32−3252.4%−14.536.2%318
71.6%
8Pharaon 3.5.1 4CPU2674+26−2643.6%+41.129.7%518
100.0%
9Nemeton 1.8 4CPU2530+27−2749.9%+2.127.2%496
 

Results matrix

Free 32-bit multi-CPU engines (best versions only)
#NameElo123456789
1ChessBrainVB 3.72 4CPU3168         
2Spike 1.4 Leiden 4CPU3017  7 − 5
+4−2=6
−49
 2 − 0
+2−0=0
+INF
    
3Toga II 3.0 4CPU2919 5 − 7
+2−4=6
+49
  2 − 0
+2−0=0
+INF
    
4Bright 0.4a 4CPU2897     25 − 7
+21−3=8
+41
   
5Jonny 4.00 4CPU2816 0 − 2
+0−2=0
−INF
0 − 2
+0−2=0
−INF
    11 − 5
+9−3=4
−8
 
6Scorpio 2.0 32-bit 4CPU2732   7 − 25
+3−21=8
−41
   18 − 9
+13−4=10
+48
 
7Hamsters 0.7.1 4CPU2686       1.5 − 2.5
+0−1=3
−71
 
8Pharaon 3.5.1 4CPU2674    5 − 11
+3−9=4
+8
9 − 18
+4−13=10
−48
2.5 − 1.5
+1−0=3
+71
  
9Nemeton 1.8 4CPU2530         
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 multi-CPU engines (best versions only)
#NameElo123456789
1ChessBrainVB 3.72 4CPU3168 100.0100.0100.0100.0100.0100.0100.0100.0
2Spike 1.4 Leiden 4CPU30170.0 100.0100.0100.0100.0100.0100.0100.0
3Toga II 3.0 4CPU29190.00.0 94.8100.0100.0100.0100.0100.0
4Bright 0.4a 4CPU28970.00.05.2 100.0100.0100.0100.0100.0
5Jonny 4.00 4CPU28160.00.00.00.0 100.0100.0100.0100.0
6Scorpio 2.0 32-bit 4CPU27320.00.00.00.00.0 98.599.9100.0
7Hamsters 0.7.1 4CPU26860.00.00.00.00.01.5 71.6100.0
8Pharaon 3.5.1 4CPU26740.00.00.00.00.00.128.4 100.0
9Nemeton 1.8 4CPU25300.00.00.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

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Results table
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Score table
LOS table
Proportion of draws
Number of games
Number of connecting games
Percentage of connecting games
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Performance with common opponents
Performance with all opponents
LOS with common opponents
LOS with all opponents

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Reference rating list:
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Created in 2005-2013 by CCRL team
Last games added on March 28, 2020