16 April 2018

Stockfish Wins TCEC Season 11

In last week's post, Back to the Future with Chess Engines, I wrote,

A total of 63 of the 100 games have been played, with the current score in favor of Stockfish +14-1=48 (38.0/63 = 60.3%). Extrapolating this over the remaining games indicates that Stockfish will reach the requisite 50.5 points after 84 games, and that the final score will be +22-2=76 (60.0/100).

A few days later Chessdom.com confirmed, Stockfish convincingly wins TCEC Season 11:-

Stockfish is the winner of the Top Chess Engine Championship (TCEC) Season 11. The open source engine by Marco Costalba, Joona Kiiski, Gary Linscott and a huge community of contributors, defeated last year’s champion Houdini and crowned itself the new Grand Champion of the competition.

This is the third title for Stockfish, after the victories in Season 6 and Season 9. However, this time Stockfish created history by winning the title in a one of a kind landslide victory. After 85 games Stockfish had the necessary 50.5 points (18 victories, 65 draws, and only two losses), with 15 games to spare the title was in the hands of the open source engine.

Yesterday the last game was played and the results were posted pronto in TCEC Season 11 final standings (chessdom.com):-

Final standings of TCEC Season 11. The top six engines enter the Premier Division of Season 12, the next six engines enter the First division, etc. The fourth division of Season 12 will be entirely invitational.

1. Stockfish – Grand Champion of TCEC S11
2. Houdini – silver medal
3. Komodo – bronze medal
4. Fire
[30 engines]

At the same time, the organizers announced TCEC Season 12 – participants and information (ditto):-

The Top Chess Engine Championship Season 12 is going to start in the second half of April 2018, a few hours after the last game of the Stockfish – Houdini S11 match. It will once again be a division system with 32 engines of relative strength 3000+ ELO, all taking place on a high end 44 cores machine in search of ever stronger and better chess.

That last announcement included 'TCEC Season 12 rules changes'. The most important was:-

The reduced time controls and number of games will allow for four seasons per year and leave time for an extra event (hint: NN engines).'

Four seasons per year is almost guaranteed to reduce human interest in the competition, but the introduction of 'NN engines' (Neural Network, aka AI engines) might bring many people back. The final score in the TCEC superfinal match was +20-2=78. A 59-41% margin of victory indicates that Stockfish is about 65 Elo points ahead of Houdini.

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