Knight & Castle

Knight & Castle helps you improve at chess by playing—and learning from—every move. Play offline against Stockfish, one of the strongest chess engines in the world. Choose a level from Beginner to Expert, review your moves instantly, and understand what to do better next time. FIVE LEVELS OF REAL CHESS • Play against Stockfish from Beginner to Expert • Play as White or Black • Full support for castling, en passant, promotion, checkmate, stalemate, and the 50-move rule • Play offline without an account or online opponent INSTANT MOVE REVIEW After each move, see whether it was a Best Move, Good Move, Inaccuracy, Mistake, or Blunder. You can also see the engine’s recommended move and compare it with your choice. An accuracy-focused review helps you understand the difference between simply losing a game and learning from it. ON-DEVICE AI COACH On supported devices, the AI Coach explains…