The Week in Chess

Thursday, April 18, 2019

Stockfish 19041623 vs. Clones

This is a test whether the Stockfish clones has something to show. CFish is still on top, Asm Fish moved one rank up. It is expected that Asm Fish will be better one because it is made in Assembly language. Perhaps the translated algorithm is not well optimized. Most showed to be marginally stronger than Stockfish and the others like Shash, Sugar and McCain are regressions. Houdini was included in the test to provide reference of the ELO strength.

The tournament was conducted in an old single 4 core AMD computer with 16GB RAM. Operating system used is Linux 4.16.16 under PCLinuxOs distro. The tournament manager is cutechess 1.1 linux version. All the chess engines had an extension of .exe which means they are all Windows compiled binaries. The 100 round-robin  tournament started yesterday at around 8pm and finished today at around 1:30pm which is less than 24hours. Number of threads used was 20 with no noticeable lag when occasionaly browsing at the same time. There were no time forfeits recorded using the time control of 1 minute base + 1 second increment. The opening book used is a custom selection 50 positions with only 2 ply depth repeating for both colors. Adjudication score for win/loss is 200cp and a draw score of 20cp after 40 moves. This would minimize the idiot dancing Kings in the endgame.

Rank  Chess Engine  ELO  Games  Score%  Win%  Draw% Author
 1  CFish 190324 x64  3559   1000  54.80 25.40 58.80 Ronald De Man
 2  Asm Fish 2019-04-05 x64  3544   1000  52.45 24.60 55.70 Mohammed Li, Lyudmil Antonov
 3  Shark 190416 x64  3543   1000  52.40 23.40 58.00 Krahs
 4  Brain Fish 190414 x64  3542   1000  52.10 25.00 54.20 Thomas Zipproth
 5  Raubfisch X40a x64  3538   1000  51.60 23.80 55.60 Frank Karl Warner
 6  CorChess 3.0 x64  3531   1000  50.45 22.80 55.30 Ivan Ivec
 7  Stockfish 19041623 x64  3531   1000  50.40 21.60 57.60 Romstad, Costalba, Kiiski, Linscott
 8  Shash 8.0 x64  3527   1000  49.80 18.90 61.80 Andrea Manzo
 9  Sugar MCTSL 220319 x64  3514   1000  47.85 22.30 51.10 Marco Zerbinati
 10  McCain X2b x64  3513   1000  47.60 17.60 60.00 Michael Byrne
 11  Houdini 6.02 x64  3467   1000  40.55 13.00 55.10 Robert Houdart

Download the gauntlet tournament games here.

Monday, April 15, 2019

Vajolet 2.2.7 vs. Top Chess Engines


Rank Chess Engine  ELO Games Score%  Win%  Draw% Loss%
1 Stockfish 10 x64  3726.31 100 98.50 97.00 3.00 0.00
2 Houdini 6.02 x64  3574.23 100 96.50 93.00 7.00 0.00
3 Komodo 11.2.2 x64  3508.98 100 95.00 90.00 10.00 0.00
4 Xiphos 0.5 x64  3421.00 100 92.00 86.00 12.00 2.00
5 Fire 7.1 x64  3409.42 100 91.50 83.00 17.00 0.00
6 Shredder 13 x64  3264.72 100 82.50 69.00 27.00 4.00
7 Critter 1.6a x64  3219.94 100 78.50 61.00 35.00 4.00
8 Ethereal 11.25 x64  3214.79 100 78.00 72.00 12.00 16.00
9 Booot 6.3.1 x64  3194.99 100 76.00 57.00 38.00 5.00
10 Schooner 2.0.34 x64  3190.22 100 75.50 58.00 35.00 7.00
11 Andscacs 0.95 x64  3180.87 100 74.50 57.00 35.00 8.00
12 Rofchade 2.0 x64  3176.29 100 74.00 57.00 34.00 9.00
13 Gull 3 x64  3176.29 100 74.00 55.00 38.00 7.00
14 Laser 1.7 x64  3158.50 100 72.00 58.00 28.00 14.00
15 Pedone 1.9 x64  3137.32 100 69.50 55.00 29.00 16.00
16 Fritz 15 x64  3129.13 100 68.50 52.00 33.00 15.00
17 Equinox 3.30 x64  3121.07 100 67.50 46.00 43.00 11.00
18 Texel 1.07 x64  3082.51 100 62.50 42.00 41.00 17.00
19 Fizbo 2.0 x64  3078.78 100 62.00 50.00 24.00 26.00
20 Senpai 2.0 x64  3053.16 100 58.50 39.00 39.00 22.00
21 Nirvana 2.4 x64  3045.96 100 57.50 38.00 39.00 23.00
22 Hannibal 1.7 x64  3028.16 100 55.00 30.00 50.00 20.00
23 ICE 3.0.658 x64  3024.62 100 54.50 33.00 43.00 24.00
24 Arasan 21.3 x64  3021.09 100 54.00 31.00 46.00 23.00
25 Naum 4.6 x64  3000.00 100 51.00 30.00 42.00 28.00
26 Protector 1.9.0 x64  2996.49 100 50.50 32.00 37.00 31.00
27 Vajolet 2.2.7 x64  2992.99 3000 31.77 15.63 32.30 52.07
28 Nemorino 5.00 x64  2978.96 100 48.00 26.00 44.00 30.00
29 Wasp 3.60 x64  2971.93 100 47.00 20.00 54.00 26.00
30 Smarthink 1.98 x64  2947.17 100 43.50 29.00 29.00 42.00
31 SCTR 1.1f x64  2914.60 100 39.00 17.00 44.00 39.00

Download gauntlet tournament games here.

Wasp 3.60 vs. Top Chess Engines


Rank Chess Engine  ELO Games Score%  Win%  Draw% Loss%
1 Stockfish 10 x64  3760.41 100 98.00 96.00 4.00 0.00
2 Houdini 6.02 x64  3635.32 100 96.00 94.00 4.00 2.00
3 Komodo 11.2.2 x64  3518.65 100 92.50 86.00 13.00 1.00
4 Fire 7.1 x64  3419.40 100 87.50 75.00 25.00 0.00
5 Xiphos 0.5 x64  3362.54 100 83.50 72.00 23.00 5.00
6 Ethereal 11.25 x64  3356.26 100 83.00 68.00 30.00 2.00
7 Laser 1.7 x64  3338.25 100 81.50 65.00 33.00 2.00
8 Shredder 13 x64  3338.25 100 81.50 74.00 15.00 11.00
9 Schooner 2.0.34 x64  3295.12 100 77.50 63.00 29.00 8.00
10 Booot 6.3.1 x64  3280.39 100 76.00 56.00 40.00 4.00
11 Andscacs 0.95 x64  3257.16 100 73.50 55.00 37.00 8.00
12 Gull 3 x64  3231.07 100 70.50 49.00 43.00 8.00
13 Rofchade 2.0 x64  3214.53 100 68.50 51.00 35.00 14.00
14 Equinox 3.30 x64  3214.53 100 68.50 46.00 45.00 9.00
15 Critter 1.6a x64  3210.48 100 68.00 51.00 34.00 15.00
16 Hannibal 1.7 x64  3183.03 100 64.50 44.00 41.00 15.00
17 Fizbo 2.0 x64  3167.91 100 62.50 48.00 29.00 23.00
18 Texel 1.07 x64  3160.47 100 61.50 48.00 27.00 25.00
19 Pedone 1.9 x64  3160.47 100 61.50 38.00 47.00 15.00
20 Senpai 2.0 x64  3113.56 100 55.00 31.00 48.00 21.00
21 Fritz 15 x64  3106.49 100 54.00 29.00 50.00 21.00
22 Nirvana 2.4 x64  3106.49 100 54.00 28.00 52.00 20.00
23 Nemorino 5.00 x64  3102.96 100 53.50 34.00 39.00 27.00
24 ICE 3.0.658 x64  3102.96 100 53.50 32.00 43.00 25.00
25 Smarthink 1.98 x64  3099.44 100 53.00 36.00 34.00 30.00
26 Wasp 3.60 x64  3078.39 3000 33.52 16.37 34.30 49.33
27 Arasan 21.3 x64  3064.36 100 48.00 32.00 32.00 36.00
28 Protector 1.9.0 x64  3060.85 100 47.50 25.00 45.00 30.00
29 SCTR 1.1f x64  3014.61 100 41.00 18.00 46.00 36.00
30 Vajolet 2.2.6.1 x64  3007.33 100 40.00 18.00 44.00 38.00
31 Naum 4.6 x64  3000.00 100 39.00 18.00 42.00 40.00

Download the gauntlet tournament games here.

Sunday, April 14, 2019

Amoeba 3.0 vs. Top Chess Engines II


Rank Chess Engine  ELO Games Score%  Win%  Draw% Loss%
1 Naum 4.6 x64  3000.00 100 58.00 36.00 44.00 20.00
2 Demolito 2018-10-29 x64  2964.49 100 53.00 33.00 40.00 27.00
3 Hakkapeliitta 210416 x64  2957.46 100 52.00 40.00 24.00 36.00
4 Deuterium 2019.1.36.50 x64  2953.95 100 51.50 34.00 35.00 31.00
5 Amoeba 3.0 x64  2943.44 1300 53.65 36.85 33.60 29.55
6 Crafty 25.2 x64  2929.41 100 48.00 26.00 44.00 30.00
7 HIARCS 14  2929.41 100 48.00 35.00 26.00 39.00
8 Spike 1.4  2922.38 100 47.00 27.00 40.00 33.00
9 Bobcat 8.0 x64  2922.38 100 47.00 34.00 26.00 40.00
10 Rodent III 0.273 x64  2918.86 100 46.50 31.00 31.00 38.00
11 Dirty Cucumber x64  2883.27 100 41.50 26.00 31.00 43.00
12 Sjeng 2010  2879.65 100 41.00 25.00 32.00 43.00
13 Cheng 4.39 x64  2861.36 100 38.50 20.00 37.00 43.00
14 Spark 1.0 x64  2799.11 100 30.50 17.00 27.00 56.00

Download the gauntlet tournament games here.

Saturday, April 13, 2019

Atlas 3.91 vs. Top Chess Engines


Rank Chess Engine ELO Games Score%  Win%  Draw% Loss%
1 Naum 4.6 x64  3000.00 100 75.50 56.00 39.00 5.00
2 HIARCS 14  2947.10 100 69.50 58.00 23.00 19.00
3 Hakkapeliitta 210416 x64  2915.12 100 65.50 53.00 25.00 22.00
4 Demolito 2018-10-29 x64  2911.25 100 65.00 47.00 36.00 17.00
5 Spike 1.4  2862.94 100 58.50 42.00 33.00 25.00
6 Rodent III 0.273 x64  2859.33 100 58.00 40.00 36.00 24.00
7 Amoeba 3.0 x64  2848.59 100 56.50 41.00 31.00 28.00
8 Bobcat 8.0 x64  2848.59 100 56.50 36.00 41.00 23.00
9 Crafty 25.2 x64  2841.48 100 55.50 37.00 37.00 26.00
10 Cheng 4.39 x64  2841.48 100 55.50 42.00 27.00 31.00
11 Deuterium 2019.1.36.50 x64  2820.31 100 52.50 34.00 37.00 29.00
12 Rubi 1.3 x64  2806.28 100 50.50 38.00 25.00 37.00
13 Dirty Cucumber x64  2806.28 100 50.50 33.00 35.00 32.00
14 Atlas 3.91 x64  2802.77 1500 43.90 27.87 32.10 40.03
15 Sjeng 2010  2781.72 100 47.00 30.00 34.00 36.00
16 Spark 1.0 x64  2610.25 100 25.00 14.00 22.00 64.00

Download the gauntlet tournament games here.

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