VS AI, on the home screen, starts a game against the computer. It plays without a connection.
Three levels
Easy is a beginner AI, made for learning. Medium plays a real plan. Hard reads double threats, such as a four and an open three at once, and finds forced wins: it punishes every loose move.
Who starts
In New game, Who starts? lets you choose: Me or The AI. You always play X. On REMATCH, the first move alternates, so that each side opens in turn.
Undo and hint
Undo takes back your last move and the AI's answer. HINT asks the strongest level for the best move, which is shown on the board. The hint comes after a short video, or at once after the purchase that removes ads.