# Chessigma > Free unlimited chess game analysis and puzzle training platform. No signup required. Runs Stockfish 17 client-side via WebAssembly. Chessigma lets players analyze Chess.com, Lichess, or PGN games with full engine reports — every move graded, opening identified, accuracy calculated. No daily limits, no paywall. The platform also offers 4M+ free chess puzzles with adaptive Elo tracking, a daily puzzle with streaks, and a community leaderboard for brilliant moves. Available in English, French, Spanish, Russian, Hindi, and Arabic. ## Core Products - [Game Analysis](https://www.chessigma.com/products/analysis): Free unlimited chess game analysis with Stockfish 17 — accuracy %, move grades (Brilliant → Blunder), evaluation graph, best moves - [Chess Puzzles](https://www.chessigma.com/products/puzzles): 4M+ free puzzles from real games with Elo tracking, adaptive difficulty, and global leaderboard ## Tools - [Chess Analysis](https://www.chessigma.com/): Enter a Chess.com/Lichess username or PGN to analyze any game instantly - [Daily Puzzle](https://www.chessigma.com/daily): A new chess puzzle every day with streak tracking - [Elo Calculator](https://www.chessigma.com/tools/elo-calculator): Calculate expected Elo rating changes for FIDE, Chess.com, and Lichess - [Best Next Move](https://www.chessigma.com/tools/next-move): Set up any board position and find the best move with Stockfish 17 - [Brilliant Moves Leaderboard](https://www.chessigma.com/leaderboard): Community-voted brilliant moves ranked globally - [Chess Wrapped 2025](https://www.chessigma.com/wrapped): Your chess year in review — stats, personality, highlights ## Blog - [Blog](https://www.chessigma.com/blog): Chess analysis guides, tutorials, and platform updates - [How Chessigma Analysis Works](https://www.chessigma.com/blog/how-chessigma-analysis-works): Technical deep-dive into client-side Stockfish analysis - [How to Analyze Chess Games](https://www.chessigma.com/blog/how-to-analyze-chess-games): Step-by-step guide to reviewing your games - [Free Chess Game Analysis](https://www.chessigma.com/blog/free-chess-game-analysis): Why Chessigma is the best free alternative to Chess.com Diamond - [Free Chess Puzzles](https://www.chessigma.com/blog/free-chess-puzzles): Guide to unlimited free puzzle training ## Optional - [Pricing](https://www.chessigma.com/pricing): Premium plans and Supercoach AI coaching features - [Privacy Policy](https://www.chessigma.com/privacy-policy): Data handling and privacy practices - [Terms of Service](https://www.chessigma.com/tos): Usage terms