Consider the following two-player game. First, player I selects a real num- ber x, which must be greater than or equal to zero. Player 2 obserwes x. Then, simultaneously and independently, player I selects a number yl and player 2 selects a number h, at which point the game ends. Player I 's payoff is = YIY2 + Yl u2 = and player 2's payoff is 3 (Yl Y2)2.