chess-puzzles

♟️ AI-powered chess trainer with Stockfish 18 + LLM coaching. Learn chess with real-time explanations, engine analysis, puzzles, openings, and endgame training — directly in your browser

Chess analysis tool powered by Stockfish and LLMs. Analyze PGN games, understand decision-making biases, train with puzzles, and play against the computer. 将博弈树搜索与自然语言生成结合的国际象棋分析工具，用于辅助棋手理解自己的决策偏差。同时内置了很多与Lichess、chess.com、国象联盟类似的功能，并完全免费。

Chess Master – Play, learn, and compete! Challenge friends, solve puzzles, and face a powerful AI. Join now and master the game!

Lichess Puzzle Timer — Bring the tension of real games to every Lichess puzzle. Any motif, any difficulty, any time, and any device (except iOS). A browser extension that implements a timer to puzzles in Lichess. Works on both Chrome and Firefox (and Firefox for Android).

Your chess, in plain files — a self-hosted chess workbench: engine analysis, studies, notes, games, and book-fed puzzles

No-account chess puzzle trainer with PGN variation support, server-side move validation, and browser Stockfish analysis.

Schachtaktik-Trainer als einzelne HTML-Datei — einfach öffnen und spielen. 50.000 der besten Lichess-Puzzles offline eingebettet. Schwierigkeit, Zeitlimit, Figurenanzahl und mehr frei wählbar. Eigene Filterfunktion. Mit Stockfish-Analyse, täglichem Puzzle und Sound-Engine.

Local-first desktop chess companion: import chess.com & Lichess games, analyze with Stockfish, build an opening repertoire, and train tactics puzzles. Built with Tauri, React & Rust.

Cross-platform chess app featuring interactive puzzles, AI gameplay, and skill-building tutorials, developed with Flutter.

Chess Arena - play Stockfish, challenge friends online, learn with a coach. Play free: https://chess-arena.bchini.workers.dev

Learn chess step by step: lessons, puzzles, bots to play and an honest review of every game with Stockfish. Free, open source, in English and Spanish.

Chess SLM trained exclusively on position + best move pairs.

ChessCraft is a modern web application that allows users to play chess with friends in real-time, improve their skills with puzzles, play against AI bots, and analyze their games. It features a clean, intuitive interface with customizable preferences and interactive gameplay.

Generalization or Memorization? Brittleness Testing for Chess-Trained Language Models

Lichess Puzzle Desktop: offline Lichess puzzle trainer for Windows (WinUI 3 / .NET 10 shell over a C++ core) with PGN and CSV export

Mix Lichess puzzle themes offline — combine forks, mates, endgames with OR/AND filters.

3択で覚えるチェス初心者トレーナー。Stockfishが選ぶ3手から選ぶだけ。インストール・登録不要のオフラインPWA

Offline chess-puzzle studio for searching, solving, reviewing, and exporting local chess material.

Chess learning app: play bots, game review with a mentor, puzzles, lessons, openings & endgames. Rust + vanilla JS.

RiaChess chess club app for Android: pass and play, play vs Stockfish, puzzles, game analysis, openings and endgames. Expo, React Native, TypeScript. GPL-3.0.