Stockfish Wins Computer Chess Championship Blitz
Stockfish won yet another Chess.com Computer Chess Championship.

Stockfish Wins Computer Chess Championship Blitz

pete
pete
Nov 19, 2018, 10:12 PM |
70 | Chess.com News

The highest-rated chess engine of all time added another title to its resume this week as Stockfish decisively won the Chess.com Computer Chess Championship 2: Blitz Battle.

The victory comes six weeks after Stockfish won the first revamped CCC: Rapid Rumble in October. Stockfish also won the inaugural edition of the Chess.com computer championship one year ago, making it a perfect three-for-three in Chess.com engine events.

stockfish computer chess championship

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Stockfish won the CCC 2: Blitz Battle in dominating fashion, scoring the highest in all three stages and defeating the three other top chess engines in the world in the finals of the event. Stockfish scored 178/300 with just eight losses in the final stage, easily topping Komodo, the machine-learning engine Lc0, and Houdini.

ccc 2 blitz battle

Stockfish finished atop a mammoth field that featured 33 of the world's strongest chess engines at the start of stage one.

Komodo made a strong resurgence to finish second in the blitz event after coming in fourth in the rapid tournament. Lc0 was able to hold off Houdini to finish third, the same spot it finished in CCC 1.

ccc 2 blitz finals crosstable

The crosstable for the CCC 2: Blitz Battle finals. Click on the image for a larger version. 

CCC 2: Blitz Battle will conclude with some bonus games before Chess.com begins CCC 3: Rapid Redux, an all-new championship event with the 16 top engines in the world and a time control of 30 minutes per game plus five seconds increment per move.

Check back on Chess.com/news soon for more information on CCC 3, including the full rules, schedule, and list of participants.

Stockfish scored dozens of beautiful wins in the blitz championship, but perhaps most impressive was its achievement as Black in the finals. Of the 600 games played in the final stage, Black won just 31 times. The majority of those wins came from Stockfish, who contributed an astounding 18 wins as Black.

Stockfish demonstrated how not to panic when your opponent sacrifices a piece for a scorching kingside attack in the following game, where it coolly absorbed Houdini's knight sacrifice before securing its king and proving a decisive advantage in a two knights-vs-bishop endgame.

In the end, all that remained were those two black knights, the two kings, and a newly promoted queen. Stockfish, emotionless as always, declined to play the thematic Ne7# at the end, preferring to deliver mate with the queen.

Komodo showed off its winning quirks with one of the strangest rook dances ever on the queenside, kicked off by the baffling move Ra3. The waltzing rooks were good enough to gain a winning edge, and Komodo proved it could indeed convert the basic king-and-pawn vs king endgame.

The machine-learning chess engine Lc0 needed just 49 moves to put away Komodo in the following masterpiece, which in computer chess practically qualifies as a miniature.

Lc0's shocking 14. Nxh7! was not foreseen by Komodo (or, on analysis, by Stockfish) and showcases the creative, flexible, and intuitive style that has generated so much fan support for the neural-network engine.

You can download PGN for all of the Computer Chess Championship blitz games at the following links:

Complete Standings:

STAGE 1
# ENGINE RATING POINTS PLAYED (%)
1 Stockfish 18092721 3437.8 115 128 89.84
2 Houdini 6.03 3370.8 110 128 85.94
3 Lc0 0.18.1 3271.6 100.5 128 78.52
4 Fire 7.1 3240.5 97 128 75.78
5 Ethereal 11.00 3231.1 95 127 74.8
6 Komodo 2142 3226.7 94.5 127 74.41
7 Andscacs 0.9403 3139.1 84 128 65.62
8 Laser 250918 3124.8 82 128 64.06
9 Shredder 13 3121.3 81.5 128 63.67
10 Xiphos 0.4.3 3114.3 80.5 128 62.89
11 Booot 6.3.1 3097 78 128 60.94
12 Chiron 20180913 3079.9 75.5 128 58.98
13 Komodo MC 3026.6 67.5 128 52.73
14 Texel 1.08 3010.1 65 128 50.78
15 Fritz 16.10 3006.8 64.5 128 50.39
16 Pedone 1.8 3006.8 64.5 128 50.39
17 Gull 3.syz 2991.4 61.5 127 48.43
18 Arasan 21.1 2980.6 60.5 128 47.27
19 Vajolet 2.6.1 2970.7 59 128 46.09
20 Nemorino 5.05 2967.4 58.5 128 45.7
21 Nirvana 2.4 2924 52 128 40.62
22 Equinox 3.30 2920.6 51.5 128 40.23
23 Fizbo 1.9 2913.8 50.5 128 39.45
24 Critter 1.6 2894 47.5 127 37.4
25 Wasp 3.30 2889.6 47 128 36.72
26 Hannibal 1.7 2881.5 45.5 127 35.83
27 Senpai 2.0 2879 45.5 128 35.55
28 Ivanhoe 999946h 2861.9 43 127 33.86
29 Protector 2853.8 42 128 32.81
30 Bobcat 8.0 2816 37 128 28.91
31 Black Mamba 2757.9 30 128 23.44
32 Crafty 25.2 2644.9 19 128 14.84
33 Alfilx64 2347.9 4 128 3.12
STAGE 2
# ENGINE RATING POINTS PLAYED (%)
1 Stockfish 18092721 3436.4 135.5 180 75.28
2 Houdini 6.03 3365.4 119.5 180 66.39
3 Komodo 2142 3351 116 180 64.44
4 Lc0 0.18.1 3316.3 104.5 176 59.38
5 Ethereal 11.00 3262.5 93.5 180 51.94
6 Fire 7.1 3214.9 80.5 179 44.97
7 Andscacs 0.9403 3151.8 63.5 175 36.29
8 Laser 250918 3143.6 63 180 35
9 Xiphos 0.4.3 3139.5 62 180 34.44
10 Shredder 13 3118.6 57 180 31.67
STAGE 3
# ENGINE RATING POINTS PLAYED (%)
1 Stockfish 18111122 3449.7 177.5 300 59.33
2 Komodo 12.2.2 3390.2 145 300 48.17
3 Lc0 0.19 3381.4 139.5 300 46.5
4 Houdini 6.03 3378.7 138 300 46

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Which chess engine did you like the best in the Computer Chess Championship? Let us know in the comments. 

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