(display-game-state (human-move (make-game-state 4 0))) Which pile will you remove from? foo Bad pile number. Try again. Which pile will you remove from? 2 Bad pile number. Try again. Which pile will you remove from? 3 Bad pile number. Try again. Which pile will you remove from? 1 How many coins do you want to remove? bar Bad number of coins. Try again. How many coins do you want to remove? 0 Bad number of coins. Try again. How many coins do you want to remove? 3 Pile 1: 1 Pile 2: 0