Bridge (Basics) Rules

Contract bridge is a partnership trick-taking game with a genuinely unusual structure: before a single card is played, the four players hold an auction that decides what the hand is even trying to accomplish. Full bridge bidding is its own enormous discipline with decades of competing conventions — this page covers the mechanics every bridge hand runs on, not a bidding system.

The deal and the partnerships

Four players, in two fixed partnerships sitting across from each other, are each dealt all 13 cards of a shuffled 52-card deck — every card is in play every hand, unlike most trick-taking games that hold cards back. Suits rank spades, hearts, diamonds, clubs from highest to lowest for bidding purposes, and within a suit, cards rank ace high down to two low.

The auction

Starting with the dealer, each player in turn either makes a "bid" — naming a number (1 through 7) and a suit or notrump — or passes. Each bid must outrank the previous one, either by naming a higher number or the same number in a higher-ranked strain. The number in a bid represents tricks above six (so a bid of "3 hearts" means a contract to win 9 of the 13 tricks with hearts as trump). The auction ends the moment three consecutive players pass after any bid; if all four pass with no bid at all, the hand is thrown in and redealt. Whichever partnership named the highest bid — the "contract" — plays the hand, with the specific player on that side who first bid that strain becoming "declarer."

The dummy

Once the auction ends, declarer's partner becomes "dummy": their hand is laid face-up on the table for everyone to see, and dummy takes no further active part in the hand beyond physically playing whichever card declarer names from that exposed hand. Declarer effectively plays both their own hand and dummy's hand for the rest of the deal, which is the single biggest structural difference between bridge and most other trick-taking games — one player is making every decision for two hands at once.

Playing the hand

The player to declarer's left leads the first card. Play then proceeds around the table as in any trick-taking game: follow suit if you can, the highest card of the suit led wins unless a trump was played, and leading the next trick falls to whoever just took the last one. Declarer's side is trying to win at least as many tricks as the contract promised; the defenders are trying to stop them.

Scoring: making it, or going down

If declarer's side wins at least as many tricks as the contract called for, they score points for the contract, entered "below the line" toward game; extra tricks beyond the contract ("overtricks") score smaller bonus points. If declarer's side falls short, that's "going down," and the defenders score penalty points instead — larger if the partnership is "vulnerable" (having already won a full game in the current match), which raises the stakes on both bidding aggressively and defending a doubtful contract. A partnership that accumulates enough points below the line across hands to reach "game" starts a new game toward the overall rubber or match.

Doubling and redoubling

A defending player who believes declarer's contract will fail can "double" it, which raises both the reward for defeating it and the penalty if it succeeds anyway; declarer's side can respond with a "redouble," raising the stakes again in the other direction. Doubling is a real strategic tool for punishing an overly ambitious bid, not just a formality.

Origins: from whist to a codified contract game

Bridge descends from whist, an older English trick-taking game with no bidding phase at all, by way of an intermediate form called Auction Bridge in the early 1900s. Contract bridge's modern scoring structure — where only the tricks actually bid and made count toward game, rather than every trick won — is generally credited to Harold Vanderbilt, who worked it out on a 1925 cruise and published the rules soon after; that scoring change is what turned bridge from a card game into the deeply strategic bidding contest it's known as today.

The arguments this game actually produces

A frequent sticking point is whether a player can change a bid after making it but before the next player has bid — generally no, a bid stands the instant it's spoken, though an obvious slip of the tongue (naming the wrong suit) is often corrected by mutual agreement at friendly tables rather than strictly penalized. See the scoring deep-dive for worked contract and penalty totals, the full dispute breakdown for more on bidding disputes, and a printable scoresheet for tracking rubbers.

Questions that come up mid-hand

Can dummy ever suggest a play to declarer? No — dummy's role is limited to physically playing the card declarer names and, in most etiquette, dummy isn't even supposed to comment on the play until the hand is over.

What happens if the auction ends with all four players passing before any bid is made? The hand is simply thrown in with no score, and the deal passes to the next player — no penalty, no points recorded either way.