Play sounds

AI mode cannot be changed while a game is in progress.

The AI uses data about how all previous players have placed their ships (as well as the normal Probability algorithm) to determine likely ship locations.

The AI assumes a random ship distribution when calculating the best square, just like the probability calculator does. Also uses diagonal skewing.

The AI has no idea what's going on. It does not understand the game of Battleship. It tries random squares and watches the little blinking dots, experiencing a mild sensation that it describes as "pleasure". You are almost guaranteed to win, and the AI is ok with that.