JamieO53 edited this page Nov 14, 2018 · 32 revisions

Where do I start ?

How does Leela Chess Zero work ?

How can I follow project status and plans?

  • See our blog
  • Discord chat #announcements and #dev-log have the most detailed updates.
  • Our github projects page shows plans for current and future work.

What is the current strength of Lc0 ?

The Elo chart seems inflated.

  • The chart is not calibrated to CCRL or any other common list. It sets 'the first net' to Elo 0, so it is not comparable, even among different training runs.
  • The different points are calculated from self-play matches. Self-play tends to exaggerate gains in Elo compared to gains when playing other chess engines.

Where can I find Lc0's current Elo?

Many people are keeping their own rating lists, here are some examples:

Which is the best net ?

There is no consensus on the "best" net, due to many reason:

  • "Strongest net" is not uniquely defined. One net could be better at short time control and another at long time controls. One could be better at drawing against Stockfish but have too many draws against lower rated engines, while another may trash lower rated engines and be trashed by Stockfish. One could be worse against other engine, but beat every other net in head to head.
  • "Self-Elo" is not a true indicator of nets strength, but just a general parameter of the "health" of the training run
  • The Large amount of nets created makes difficult to test everything
  • Substantial amount of testing is required to assess superiority outside of error bars (small sample size problem)
  • There is no coordinate testing framework. It is considered that resources are better spent on training

Despite all this, some of the best net of each training run have been identified here

Can I watch Lc0 play somewhere?

Where can I find PGNs of played games?

Provided by:     Edosan
LC0 network ID:  240
Opponent:        Scorpio 2.8

Download link: http://s000.tinyupload.com/index.php?file_id=71717869477580896599

Provided by:     y_Sensei
LC0 version:     0.1-current version, TF version, cuDNN version
LC0 network ID:  13-current version
Opponent:        Stockfish 8 + 9, OpenTal 1.1, Rodent III 0.172

Download link: http://bit.ly/ys-chess

Provided by:     Edosan
LC0 network ID:  247 GPU v8 W/ TB
Opponent:        Houdini 6.03

Download link:https://lichess.org/BHgy4azy

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