The tree below represents possible moves in a competitive game, showing that player X currently has a choice between move A and move B. Following the move of player X, player Y is allowed to select a move, and then player X is allowed to select the last move of the game. The leaf nodes of the tree are labeled W, L, or T depending on whether that ending represents a win, loss, or tie for player X, Should player X select move A or move B? Why? How does selecting a “production” in a competitive atmosphere differ from a one-person game such as the eight-puzzle?