In "auction" games, bidding players are competing against each other for the right to attempt to make the contract. In a few games, the contract is fixed (normally a simple majority, less often based on certain cards captured during play) and players' bids are a wager of game points to be won or lost. In others, the bid is a number of tricks or card points the bidder is confident that they or their partnership will take. Either of these can also include the suit to be used as trumps during the hand. Common bids include slam (winning all the tricks), misère (losing all the tricks), ouvert (the contractor's hand is exposed), playing without using the stock or only part of it, and winning the last trick or other specific tricks. The highest bid becomes the contract and the highest bidder is the "contractor", known in some games as the "declarer" or "taker", who then plays either with or without a partner. The other players become "opponents" or "defenders", whose main goal is to prevent the contract being met. They may announce a "contra" against the contractor which doubles the points for the hand. The contractor can declare a "recontra" which will double the points again.