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Ormulogun

A very simple serverless, privacy aware chess tactics trainer. Released under the Apache License 2.0.

Test it live at: https://artefact2.gitlab.io/ormulogun/

Dependencies

  • PHP (CLI)
  • Any UCI engine (eg stockfish; puzzle generation only)
  • GNU parallel
  • pv
  • zstd
  • CMake
  • clang/llvm
  • sassc
  • Judy (only for opening book generation)
  • Inkscape (only for EPUB generation)

Getting started

git submodule update --recursive --init

Frontend

make -C frontend
make -C frontend host

Puzzle generation

See README.md.

Opening book generation

See README.md.

To-Do

  • More automatic tagging (sacrifices, Zugzwang, Zwischenzug, checkmate patterns, avoid stalemate...)
  • More subtags (Fork (Knight), Pin (Queen) etc. or just add tags per involved piece)
  • Better automatic tagging (not a trivial task)
  • Local puzzle blacklist (ignore list)
  • Better activity log, activity streak
  • Find some way of rating puzzles by difficulty without relying on a central server and user tracking (if at all possible)
  • localStorage space limit may become an issue with large puzzlesets, maybe use lz-string
  • Opening trainer
  • Guess the move

Credits

  • Lichess, for making their game dumps available
  • Colin M.L. Burnett for releasing his chess pieces as SVG (full license in COPYING.pieces)
  • Pablo Impallari for releasing the Kaushan Script under the SIL Open Font License
  • GitHub Octicons for the "fork" icon, released under the SIL Open Font License, version 1.1
  • stockfish.js and all the contributors of Stockfish