It's full of nice touches: when you click or drag a piece, its destination squares are highlighted in yellow, and the best move is shown with a red arrow. Stockfish has a gorgeous board that looks fantastic on Retina Displays.
Stockfish will tell you who's winning and calculate the best move. Play two-player games on the beautiful chess board, or get instant accurate analysis of any game. What does Stockfish Chess do? Stockfish is a powerful chess analysis app.