Caro: 5 in a Row XO

Play Caro, the legendary five-in-a-row XO abstract strategy game, on a modern 15x15 grid with Caro: 5 in a Row XO. Take turns placing X and O marks to be the first to connect five in a row horizontally, vertically, or diagonally.

Challenge a calibrated artificial intelligence engine across three distinct difficulty levels: Casual AI for quick relaxed play, Tactical AI for intermediate players, and Grandmaster AI for deep strategic thinkers. Use the Smart Hint engine to discover optimal tactical moves and counter-strategies.

Enjoy local two-player pass-and-play mode on a single device with 180-degree board rotation, making it easy to duel friends and family face-to-face. Switch anytime between Classic XO grid mode and traditional stones mode. Features include move history, unlimited undo, precision placement loupe, and career statistics.

The game is 100% playable offline without requiring any account registration or login. The app contains advertisements, which use network connectivity when available.