Bidding box for home-played games. Use of bidding boxes has several advantages over oral bidding: it reduces noise in the room, prevents bidding being overheard at neighboring tables, allows easier review of the auction, and reduces the opportunity to pass unauthorized information to one's partner (intentionally or not) by the manner and intonation in which one makes one's bid. A bidding box is typically a plastic box with two slots, each containing a set of bidding cards. One slot contains 35 cards with symbols of bids (5 denominations—clubs (), diamonds (), hearts (), spades (), and notrump (NT)—in seven levels of bidding,
Pedro (card game) game of Pedro, which developed in the nineteenth century from Auction Pitch, did not have partnerships (so from four to seven could play). It also did not use the "off-suit" Pedro or have a second deal. There was only one round of bidding. In keeping with the game's descent from All Fours, the ace of trumps was called "high", the two was called "low", and the ten was called "game". The nine of trumps, called "sancho", was worth nine points. A variant called Dom Pedro or Snoozer counted the three of trumps as three points and used the joker, called