Bridge Rules

Bridge is a classic [American card game](/) that has been enjoyed for generations. Players who appreciate complex strategy often explore related games like [Spades](/spades) and [Whist](/whist). For official rules and tournament information, the [American Contract Bridge League](https://www.acbl.org/) is the world's leading authority.

  • Category: American Classics
  • Players: 4
  • Player notes: 2 fixed partnerships: North-South vs East-West

Objective

You try to score more points than your opponents by bidding accurately and then fulfilling the contract you set. Once the bidding ends, the declarer’s side must reach the number of tricks they promised, while the defenders do everything they can to stop them.

Material

One standard 52-card deck with cards ranking: A (high), K, Q, J, 10, 9, 8, 7, 6, 5, 4, 3, 2 (low)

Card Ranking

A♥ K♥ Q♥ J♥ 10♥ 9♥ 8♥ 7♥

Setup

Four players divide into two fixed partnerships, sitting opposite each other as North-South and East-West. You deal all 52 cards clockwise so each player starts with 13 cards.

How to Play

Bidding Phase

Players estimate how many tricks their partnership can win and place bids starting at the 1-level, which means aiming for 7 tricks. Each call follows a strict order, moving from Clubs up through No Trump, and then rising in levels. This gradual climb continues until someone reaches an ambitious contract like 7NT, which requires all 13 tricks.

Example Bidding Sequence

North: 1♥ (I can make 7 tricks with Hearts as trump) East: Pass South: 3♥ (Partner, we can make 9 tricks in Hearts!) West: Pass North: 4♥ (I think we can make 10 tricks!) All Pass

Final contract: 4♥ (10 tricks with Hearts as trump)

Playing the Hand

The player who first named the trump suit becomes the declarer. Once the opening lead is made, the declarer’s partner exposes their cards face up as the dummy, and the declarer guides both hands during the play. The player seated to declarer’s left makes the first lead, setting the tone for the rest of the tricks.

Trick Examples

If Hearts are trump:

K♦ A♦ 5♥ 7♦

Result: Declarer wins with 5♥ (trump beats all other suits)!

6♥ A♥ 3♥ Q♥

Result: Declarer wins with A♥ (highest trump played).

No Trump Example

When playing No Trump (NT), the highest card of the led suit wins:

K♠ A♠ 9♠ 5♠

Result: Player 2 wins with A♠ (highest Spade, no trump suit).

Scoring

Making Your Contract

| Contract Type | Level | Points & Bonuses | |---------------|-------|------------------| | Part-Game | 1-2 level | Below 100 points (Example: 2♥ = 60 pts) | | Game | 3-4 level | 100+ points (Example: 4♥ = 120 pts + 300 bonus) | | Small Slam | 6-level (12 tricks) | 500/750 bonus + trick points | | Grand Slam | 7-level (13 tricks) | 1000/1500 bonus + trick points |

Trick Point Values

| Trick Type | Points | Description | |------------|--------|-------------| | Minor suits (♣ or ♦) | 20 points | Each trick in Clubs or Diamonds | | Major suits (♥ or ♠) | 30 points | Each trick in Hearts or Spades | | No Trump (NT) | 40 points | First trick, then 30 for each additional | | Overtrick | Same as contract | Extra tricks beyond contract |

Scoring Example

You bid and make 4♥ (10 tricks with Hearts as trump):

  • Base: 4 tricks × 30 = 120 points
  • Game bonus: 300 points (non-vulnerable)
  • Total: 420 points

You bid 3NT and make 10 tricks (1 overtrick):

  • Base: (40 + 30 + 30) = 100 points
  • Overtrick: 30 points
  • Game bonus: 300 points
  • Total: 430 points

Penalty for Failing

If you fail your contract, the defenders earn points based on how many tricks you fall short.

| Penalty | Points to Opponents | Description | |---------|---------------------|-------------| | Down 1 | 50 points | Per trick short (non-vulnerable) | | Down 2 | 100 points | Each additional trick | | Doubled | Much larger | Penalties multiply when doubled |

Strategy Tips

Bidding Strategy

A♠ K♠ Q♠ J♠ 10♠

This kind of suit is a dream for bidding. To judge the strength of your hand, tally your high card points (HCP):

  • Ace = 4
  • King = 3
  • Queen = 2
  • Jack = 1

You generally need 12-13 HCP to open the bidding.

Playing Strategy

  1. Lead top of sequences: K♠ from K-Q-J
  2. Third hand high: Play your highest card when partner leads
  3. Count your tricks: Know your potential before dummy appears
  4. Watch entries: Make sure you can move between hands when needed

Example: Planning the Play

Dummy hand:

A♥ K♥ Q♥ 3♦ 4♦ A♣ K♣ 9♠ 8♠ 7♠

You see immediate tricks in Hearts, Diamonds, and Clubs: 3 + 2 + 2 = 7 tricks. To reach your contract, you’ll need to create a few more tricks in Spades, so your plan revolves around developing that suit.

Ending the Game

A rubber ends when one partnership wins two full games. To win a game, you need to collect at least 100 points from successful contracts, so every decision in bidding and play gets you closer.

Variants

Duplicate Bridge

All tables receive the same hands. Your score is compared to others who played the same deal.

Chicago Bridge

A four deal format often used for casual play with limited time, where vulnerability rotates.

Rubber Bridge

The traditional style in which players continue until one partnership wins two games.

Frequently asked questions

What is the difference between Contract Bridge and Duplicate Bridge?

Contract Bridge is the classic version people play at home, where your score builds over several hands and each deal feels like a chapter in a longer story. Duplicate Bridge works differently. Several tables play the exact same hands, and your score comes from how well you did compared to other pairs who faced the same cards. It turns the game into a fairer and more competitive contest, where skill matters far more than luck.

What does bidding 3NT mean?

When you bid 3NT, you’re announcing a contract of three no-trump, which means you aim to win at least 9 tricks since every contract starts from a base of six. With no trump suit to fall back on, you rely entirely on the strength and balance of your combined hands. These contracts are popular because a well-timed no-trump bid can score heavily when you hold solid high cards across the suits.

How do you count points for bidding?

You start by adding your High Card Points, giving yourself 4 for an Ace, 3 for a King, 2 for a Queen, and 1 for a Jack. Then you look at the shape of your hand and add distribution points, usually 3 for a void, 2 for a singleton, and 1 for a doubleton. When your total reaches around 13 points or more, you generally have enough strength to make an opening bid with confidence.

What is a Stayman convention?

Stayman is a very common bidding tool used after your partner opens 1NT. By responding with 2♣, you ask whether your partner holds a four card major suit. It’s a simple question that helps you uncover a Heart or Spade fit, which often leads to a safer and more rewarding contract.

What does vulnerable mean?

Being vulnerable means your partnership has already won a game in the ongoing rubber. It puts you in a higher risk, higher reward position. You earn bigger bonuses when you make your contract, but if you fail, the penalties jump sharply, so every decision feels a bit more critical.

Can you explain the Jacoby Transfer?

The Jacoby Transfer comes into play after your partner opens 1NT. By bidding 2♦, you’re telling partner you hold at least five Hearts, and by bidding 2♥, you’re showing at least five Spades. Partner is required to bid the next suit up, which shifts the contract into their hand. This keeps the stronger hand hidden from the defenders and often makes the play much smoother.

What is a finesse?

A finesse is a classic card-play technique where you lead toward one of your high cards and hope that the opponent holding the higher card sits in the right spot. If things line up, your lower honor wins the trick even though a higher one is still out. It’s a simple idea, but it sits at the heart of good declarer play.

How many tricks do you need for game in each suit?

Game targets change depending on the contract. You need 9 tricks for 3NT, 10 tricks for a major suit contract like 4♥ or 4♠, and 11 tricks for a minor suit contract such as 5♣ or 5♦. Reaching these levels awards valuable game bonuses, while anything below counts only as a part-score.

What is the difference between rubber and Chicago scoring?

Rubber Bridge continues until one partnership wins two full games, so the length of the match can vary quite a bit depending on the deals. Chicago Bridge, often called Four Deal Bridge, always uses exactly four hands with set vulnerability, which makes the session shorter, more structured, and easier to fit into a limited amount of time.

What does doubling mean?

A double raises the stakes of the contract on the table. You usually use it when you believe the opponents won’t make their bid and you want to increase the penalties they’ll face. In some partnerships, a double can also carry a specific message, helping your partner understand the shape or strength of your hand.