Carrot in box: game for two

Features Carrot in box: game for two

This is a simple, frivolous bluff game for two players.
Each player has a box; in one of them there is a carrot that each player wants to get.The first one looks into his box and tells the second one if there is a carrot there.
And the second one has to decide whether to change boxes or not (without looking into his box).