Play Stockfish Chess online. Estimate your chess ELO rating, solve challenging puzzles, study famous chess games, and read the latest chess news.
PlayStockfish lets you play chess online against Stockfish, the world's strongest open-source chess engine, with no sign-up required. Pick a difficulty that matches your level, from beginner-friendly bots to full engine strength, and improve your game one match at a time.
Want more than a single game? Estimate your chess ELO rating with our 3-game rating test, sharpen your tactics with chess puzzles (mate-in-2 to mate-in-5), replay famous chess games like the Immortal Game and Deep Blue vs Kasparov, watch or challenge large language models in the AI Chess Arena, and keep up with the latest chess news.