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Xadrez Coach

Public app Games / Education

Xadrez Coach is a browser-based solo chess trainer. It uses Stockfish for play and analysis, then turns mistakes into puzzles for later practice.

My role. I built the study flow around a feedback loop: play against Stockfish, review the mistakes and revisit them as puzzles.

See the study flow Play Xadrez Coach View source on GitHub

From game to practice

Play against Stockfish, review your moves and practise the positions you missed.

  1. Play

    A gamePlay against Stockfish

    Choose study mode and play a move.

  2. Review

    After the moveInspect the feedback

    Look at the move feedback and revisit the position during replay.

  3. Practise

    LaterReturn to a mistake

    Practise puzzles built from earlier mistakes using spaced repetition.

Design decision I connected play, review and later practice so the positions that caused trouble become material for the next session.

The problem

I wanted a way to review my own games and practise the positions I had missed.

How it works

  1. Play Start a game against Stockfish.
  2. Analyze Review feedback about moves.
  3. Replay Go through the game after finishing.
  4. Practise Return to puzzles based on earlier mistakes.

What it includes

  • Browser-based Stockfish
  • Move-by-move review
  • Post-game replay
  • Spaced-repetition puzzles

Project status

Published for solo practice. Physical iPhone validation remains pending.

Technical details

Vite and TypeScript with Chessground, chess.js and Stockfish WASM in a browser worker. Published on GitHub Pages.

  • Vite 8
  • TypeScript
  • chessground 9.2
  • chess.js 1.4
  • Stockfish 19 WASM
  • Vitest
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