Euchre game variations their possession. Taking all five tricks here results in four points. Each player keeps their own score. A common variation played in southwestern England competitive pub leagues uses the standard Euchre deck with an extra card, usually a Joker or 2 of spades, called the "Benny" (often called the "Bird" in Australia). This card is the highest trump no matter what suit is called. When the Benny is turned over by the dealer, the dealer must choose a suit to call as trumps before looking at his or her hand. Bidding then proceeds normally. The Duchy of Cornwall lays claim
Vickrey auction payment in the sealed second-price auction. Vickrey considered the case of two buyers and assumed that each buyer's value was an independent draw from a uniform distribution with support formula_15. With buyers bidding according to their dominant strategies, a buyer with valuation formula_12 wins if his opponent's value formula_17. Suppose that formula_12 is the high value. Then the winning payment is uniformly distributed on the interval formula_19 and so the expected payment of the winner is We now argue that in the sealed first price auction the equilibrium bid of a buyer with valuation formula_12 is That is, the payment