Let's renew the puzzle collection. We'll produce a collection of new puzzles out of the lichess game database.

Related tags

General Utilities lichess-puzzler
Overview

lichess puzzler

Let's renew the puzzle collection. We'll produce a collection of new puzzles out of the lichess game database.

We need a program that generates puzzles, and one that allows manual validation and categorization of each and every puzzle.

Generator

Use stockfish and database.lichess.org to produce puzzle candidates. Python is probably the language of choice because of https://github.com/niklasf/python-chess

The generator posts candidates to the validator.

Validator

Stores puzzle candidates and lets people review them with a web UI.

mongodb puzzle:

{
  _id: 1, // incremental
  createdAt: date,
  gameId: string,
  fen: string,
  ply: number,
  moves: [uci],
  review: { // after a review was done
    at: date,
    score: 0-5, // quality
    rating: 1200 // estimated rating
    topics: [string],
  }
}
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Comments
  • Avoid 3-fold repetitions

    Avoid 3-fold repetitions

    See https://github.com/ornicar/lichess-puzzler/commit/3e3377e3ea576785126780c7c7a9291b37c46453 for a clean diff

    The transition to a class isn't really necessary but I thought it would be useful for this at first.

    opened by benediktwerner 1
  • Added additional docstrings

    Added additional docstrings

    Hi,

    I created some docstrings for the util functions. It think it's a good first step to get familiar with the code base, and it might help others who are trying to do the same. I only did those so far, because I wanted to get some feedback before investing to much time.

    • Is it useful to invest the time, or will there be little added value. In that case, I'll just focus on understanding the code.
    • Is the Google docstring format used the format we would like? (https://sphinxcontrib-napoleon.readthedocs.io/en/latest/example_google.html)
    • Is the quality of the docstrings what you expect it to be?

    Of course, I'll probably get some stuff wrong along the way, so someone will have to spend some time on reviews as well. Let me know if you want me to continue on the rest of the code.

    Kind regards, Kasper

    opened by KasperDeBlieck 1
  • 3fold repetition: Fix generation

    3fold repetition: Fix generation

    #9 Uses fen method which includes the move number, so positions are never equals.

    Also close https://github.com/ornicar/lichess-puzzler/issues/8 too

    Some tests are failing test_puzzle_4, test_puzzle_15 randomly. test_puzzle_6 always fails for unknown reasons. These failing tests are an issue unrelated to this change though.

    opened by kraktus 0
  • skip positions that look like they have more castling rights

    skip positions that look like they have more castling rights

    @370417:

    The intended solution to /training/oESSu only makes sense if you happen to know that white can't castle. Is that grounds for removal? (https://lichess.org/forum/lichess-feedback/httpslichessorgtrainingoessu)

    Applied retroactively this would exclude 14k of the 1.8 million existing puzzles.

    opened by niklasf 0
Owner
Thibault Duplessis
Maker of lichess.org, a hippie communist chess server for drug fueled atheists.
Thibault Duplessis
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