that hand. Special rules are provided for the case where a single player holds both black Queens. Stock In some games not all cards are distributed to the players, and a stock remains. This stock can be referred to by different names, depending on the game; supply, talon, nest, skat, kitty, and dog are common game-specific and/or regional names. In some games the stock remains untouched throughout play of the hand; it is simply a pile of "extra" cards that will never be played and whose values are unknown, which will reduce the effectiveness of "counting cards" (a common strategy of keeping track of the cards that have been played or are yet to be played). In games without bidding, trumps may be decided by exposing a card in the stock as in Triomphe. In other games, the winner of an auction-bidding process (the taker or declarer) may get to exchange cards from his hand with the stock, either by integrating the stock into his hand and then discarding equal cards as in Skat, Rook and French tarot, or in a "blind" fashion by discarding and drawing as in Ombre. The stock, either in its original or discarded form, may additionally form part of one or more players' "scoring piles" of tricks taken; it may be kept by the declarer, may be won by the player of the first trick, or may go to an opposing player or partnership. In some games, especially two-player games, after each trick every player draws a new card. This continues while the stock lasts. Since this drawing mechanism would normally make it difficult or impossible to detect a revoke (for instance, the player may not be able to follow suit, so they play off-suit and then immediately draw a card of the suit led), in the first phase of trick-play (before the stock is empty) players generally need not follow suit. A widespread game of this type is the Marriage group. Bidding In a contract game the winning and scoring conditions are not fixed but are chosen by one of the players after seeing their hand. In such games, players make bids depending on the number of tricks or card points they believe they can win during play of the hand. One or more of these bids stands as the contract, and the player who made that bid is rewarded for meeting it or