Chessboard.fun

An interactive web platform for chess enthusiasts, offering unique training modes, detailed statistics, and powerful analysis tools.

🎯 Main Features

Training Modes

• 🎯 Finish-Him (Conversion) - Solve tactical puzzles and prove your advantage in endgames against Stockfish
• 🧠 Automatic Tactical Trainer - AI-powered personalized training across 25 tactical themes

Analysis & Statistics

• 📊 Club Statistics - Detailed statistics and leaderboards for Lichess chess clubs
• 🏠 User Dashboard - Personal statistics, favorite puzzles, and Lichess activity
• 🔍 Analysis Panel - Position analysis with Stockfish engine, variations, and PGN support

🤖 Available Chess Bots

Choose from several training bots with different skill levels:

Bot	Rating	Engine	Configuration
'Stockfish 2500'	2500+	Stockfish.js	depth 12, contempt 100
'MoZeR 2200+'	2200+	LCZero+BadGyal8	Human-like engine (server-side)
'Maia 2200'	2200+	LCZero+Maia2200	Human-like engine (server-side)
'Maia 1900'	1900+	LCZero+Maia1900	Human-like engine (server-side)

🛠️ Tech Stack

• Frontend: TypeScript, Vue.js
• Backend: n8n.io + Nest.js (for webhook processing and API)
• Chess Logic: chessops
• Board Rendering: Chessground
• Chess Engines:
  • Local: Stockfish.js + Stockfish.wasm
  • Server: LCZero + Maia 1900
• API: Lichess API

🌐 Key Features

• 🔗 Lichess Integration - Login via Lichess account with full profile integration
• 📈 Advanced Statistics - Track tactical ratings, conversion ratings, games played, and FunCoins
• 🧩 Lichess Puzzle & Evaluation Database - Built on the comprehensive Lichess puzzle database and evaluation database
• 🎨 Modern UI - Clean, responsive interface built with TypeScript and Vue.js
• 🌍 Localization - Available in English, German, and Russian

🤝 Contributing

We welcome all contributions! If you have ideas, suggestions, or found a bug:

1. Create an issue to discuss your idea
2. Fork the repository
3. Create your feature branch
4. Submit a pull request

📄 License & Acknowledgements

This project is licensed under the GNU General Public License v3.0.

Chess Engines

Stockfish Chess Engine

Game and move analysis powered by Stockfish, an open-source chess engine distributed under GPLv3.

Important: Due to GPLv3 requirements, our source code is available under the same license. You can read the full text here.

Maia Chess Weights

Human-like moves on the server are provided by Maia Chess, a project designed to play chess like a human. Maia uses neural networks trained on millions of human games to predict moves a player at a specific rating level would make.

• Website
• GitHub
• Lichess Bot

Leela Chess Zero (LCZero)

To run Maia Chess neural network weights, the server uses Leela Chess Zero, another powerful open-source neural network chess engine.

• Website
• GitHub
• Special thanks to dkappe for the "Bad Gyal" Leela Chess Zero weights: Bad Gyal Weights

Libraries & Tools

Chessground

Interactive chessboard rendered using Chessground from the Lichess team (GPLv3 License).

Chessops

Core chess logic implemented using Chessops, a modern, modular library for move generation, legality checks, and FEN/PGN handling.

Special Thanks

• Lichess - For the amazing API and open puzzle database
• n8n.io - For the flexible automation platform that forms the core of the backend
• All contributors and the chess community for their support and feedback

👨‍💻 About the Author

Hello! My name is Moser. I was born in 1985 in Kazakhstan and have been living in Germany since 2003.

By trade, I'm a mechanical engineer, but I've been passionate about chess my whole life. This project is a long-held dream of mine to create a convenient training tool, which became possible thanks to modern technologies like AI and the n8n platform.

I am fluent in Russian and German, and also know some English.

Thank you for using Chessboard.fun!

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Made with ❤️ for chess enthusiasts everywhere