Are you ready to bluff your way to success?
 
Skull is a bluffing game, a game where the real game is played in the players' heads. Each player will play a face-down disc, then each player in turn adds one more discs, until someone feels safe enough to state that he can turn a number of discs face up and get only flowers. Other players can then overbid him, saying they can turn even more discs face up. The highest bidder must then turn that number of discs face up, starting with his own. If they shows only flowers, they win; if they reveal a skull, they lose, placing one of their discs out of play. Two successful challenges wins the game. 
 
Can you bluff your way to victory?