Chess Engine

Unleash professional-level chess analysis on your phone. ChessThink is the all-in-one app to analyze, play, train and explore - for everyone from beginners to grandmasters. 🔥 Powered by the latest Stockfish 18 NNUE - master-strength analysis, fully offline. 📊 Analyze • Engine evaluation of every move with multiple best lines (MultiPV) • Game Review: per-side accuracy and move ratings — Brilliant, Best, Inaccuracy, Mistake, Blunder • Evaluation bar, eval graph and best-move arrows • Set up any position, or import games via PGN/FEN (Chess960 supported) • Save analyses and add your own comments ♟ Play & Train • Play bots from beginner to grandmaster, with hints and time controls • Tournament ladder and local 2-player mode • Daily Challenge with a solving streak 📚 Explore • Automatic opening detection + a browsable openings library • Master endgames with Syzygy tablebases • Analysis Explorer - your personal opening book, built from your own analyses • Chess DNA - a private dashboard of how you play and study 💡 Why ChessThink? • 100% offline - train anywhere, no internet needed • No account, no tracking - your games stay on your device • 10 board themes, available in 8 languages • Free, supported by ads Download ChessThink and take your chess to the next level.