25 June 2018

Finding Leela

In my previous post, Where's Leela?, I identified four resources for tracking Leela's progress:-

  • LCZero (lczero.org; the hub for *all* relevant links)
  • Forum (groups.google.com/forum/lczero)
  • Github (github.com/LeelaChessZero/)
  • Chat (discord.gg/pKujYxD)

It seems other people have been asking the same questions that I asked and there is now a fifth resource:-

  • Blog (blog.lczero.org)

The first blog post was The Way Forward (18 June 2018), with the following main topics:-

A brief history of Leela Chess Zero
Bugs and self play
TCEC Season 13
LCZero, LC0 and the test pipeline

Back to the forum, a few weeks ago in Understanding Leela, I tried to locate the areas that Leela followers considered to be hot topics:-

How to discover the most relevant threads? I started by looking at recent threads with a high number of responses.

Here are a few more recent threads that generated a discussion:-

The WCCC is the World Computer Chess Championship, run by the International Computer Games Association (ICGA). I have a page on the history of the ICGA championships, World Championship : Computer Chess. These days, a better competition to determine the strongest chess engine in the world is the Top Chess Engine Championship (TCEC). I discussed the most recent winner in Stockfish Wins TCEC Season 11 (April 2018), where I noted,

Stockfish - Houdini: 'The final score in the TCEC superfinal match was +20-2=78.'

In one of my first posts on the AI newcomer, Leela Chess Zero (May 2018), I noted its participation in season 12:-

Leela was placed into the lowest of the TCEC qualifying events, Division 4.

As shown in the crosstable that accompanied that post, Leela finished last in the division by a wide margin. Season 12 has now progressed to the final stage, where Stockfish and Komodo have already completed 40 games with the score +8-4=28 in favor of Stockfish. Extrapolating this result to the 100 games planned for the match means that Stockfish will win by something like +20-10=70. The action and chat can still be followed at TCEC - Live Mode, although this currently redirects to a new (temporary?) domain with a redesigned interface. I'll come back to season 12 when it's over.

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