Bidding:
How to make a contract
Master the language of bridge and start playing with purpose.
Bidding (also called the auction) is how partners communicate in bridge. Before a single card is played, you and your partner exchange coded information through bids to decide two things:
1. How many tricks you will try to win (out of 13)
2. Which suit (or notrump) will be trumps
Let’s break it down step by step.
What Is a Contract?
A contract is the final agreement reached during the auction.
Example:
4♥ means:
- You promise to win 10 tricks (6 + 4)
- Hearts are trumps
If you succeed, you score. If you fail, the opponents score.
💡 Quick tip:
- Always translate the contract into a number of tricks.
- Remember: 3NT = 9 tricks, 4♥/4♠ = 10 tricks.
- Before passing the final bid, ask yourself: Can we realistically take that many tricks?
The Goal of Bidding
Your partnership wants to:
- Find an 8-card fit
- Decide between suit or notrump
- Reach the correct level (part-score, game, slam)
You are not bidding randomly, you are describing your hand using a shared system.
💡 Beginner tip:
- Major suits (♥ ♠) are usually more valuable than minors.
- Don’t rush to game without knowing your combined strength.
- Think partnership total, not just your own hand.
Evaluating Your Hand
High Card Points (HCP):
- A = 4
- K = 3
- Q = 2
- J = 1
There are 40 total HCP in the deck.
General Strength guidelines:
- 12+ points → You can usually open the bidding
- 25+ combined points → Likely enough for game
- 33+ combined points → Possible small slam
- 37+ combined points → Possible grand slam
But points alone aren’t everything. Distribution matters too:
- Extra points for long suits
- Extra value for shortness in a trump fit
💡 Quick tip:
- Upgrade hands with good 5-card suits.
- Downgrade flat hands with scattered honors.
- Always re-evaluate after partner supports your suit.
The Basic Structure of the Auction
Bidding moves clockwise. Each bid must be higher than the previous one.
The order of suits from lowest to highest is:
♣ Clubs
♦ Diamonds
♥ Hearts
♠ Spades
NT Notrump
Example:
1♣ → 1♦ → 1♥ → 1♠ → 1NT → 2♣ …
💡 Quick tip:
- Plan ahead: If you want to show two suits, think about the order.
- Don’t bid a new suit without knowing what it promises (forcing or not).
- Watch the level, space disappears quickly.
Opening the Bidding
The first player with enough strength (usually 12+ HCP) makes an opening bid.
Common Beginner Openings:
1 of a suit
- At least 4 cards in that suit
- 12–21 points
1NT
- 15–17 balanced hand
- No 5-card major
- No void or singleton
This immediately tells partner a lot about your strength and shape.
💡 Quick tip:
- Open your longest suit.
- With two 5-card suits, open the higher-ranking one (in standard methods).
- Don’t stretch to open weak hands, discipline matters.
How Partners Communicate
Think of bidding as answering questions.
Opener says:
“I have this many points and this shape.”
Responder asks:
“Do we have a fit? Do we have enough for game?”
💡 Tip:
- When responding, support partner’s major with 3+ cards.
- If you can describe your hand in one bid, do it.
- Avoid guessing, ask (with appropriate bids).
Example
You open: 1♥
Partner holds 4 hearts and 10 points.
Partner bids: 2♥
This says:
- I support your hearts
- I have about 6–9 points
You now know:
- You have at least 8 hearts together
- Combined strength is maybe 18–22 points
You decide whether to stop low or invite game.
Finding a Fit
An 8-card fit (combined 8+ cards in a suit) is gold.
Example:
You have 5 spades
Partner has 3 spades
→ 8-card fit → spades likely trump suit
Trump fits allow:
- Ruffing
- Better control
- Safer contracts
💡 Quick tip:
- Always look for a major fit first.
- With support, raise partner immediately if possible.
- The more trumps you have, the higher you can compete safely.
Invitations and Game Decisions
Once you know your combined strength, you decide:
- Part-score (1- or 2-level)
- Game (3NT, 4♥, 4♠, 5♣, 5♦)
- Slam (6- or 7-level)
Example:
Opener: 1NT (15–17)
Responder: 8–9 points
Responder bids 2NT
This says: “If you’re maximum, let’s go to 3NT.”
If opener has 17 → bid 3NT
If opener has 15 → pass
That’s a conversation.
💡 Quick tip:
- Know your ranges. If partner shows 15–17 and you have 9, invite.
- Do not invite with 6 points, that’s too optimistic.
- When partner invites, accept with maximum, decline with minimum.
Special Bids That Communicate More
Some bids don’t mean what they look like. These are called conventions.
Examples beginners learn early:
- Stayman (2♣ after 1NT) → “Do you have a 4-card major?”
- Jacoby Transfers (2♦ or 2♥ after 1NT) → “I have 5+ cards in the next suit.”
These tools make communication precise.
💡 Quick tip:
- Only use conventions you fully understand.
- Alert partner before playing what your conventions mean.
- Simplicity beats complexity for beginners.
When the Opponents Bid (Competitive Bidding)
Now communication becomes competitive.
You may:
- Overcall (show a good suit)
- Double (usually for takeout)
- Compete for part-score
Now you are describing your hand while interfering with theirs.
💡 Quick tip:
- Overcall with a strong 5-card suit.
- Don’t overcall just because you can.
- In competition, distribution becomes more important than points.
The Big Picture: Bidding Is a Language
Every bid answers one or more of these:
- How many points do I have?
- How many cards do I have in this suit?
- Am I minimum or maximum?
- Am I inviting to game?
- Am I forcing partner to continue?
Good partnerships agree on meanings in advance.
Without agreement, bids are noise.
With agreement, bids are precise messages.
💡 Quick tip:
- Ask yourself: “What does partner know now?”
- Avoid making bids that partner cannot interpret.
- Consistency builds trust in partnerships.
The Mindset Shift
Beginners think:
“What contract should I play?”
Experienced players think:
“What information does partner need from me right now?”
That’s the key.
💡 Quick tip:
- Slow down during the auction.
- Think in ranges, not exact numbers.
- Trust the system, not emotion.
Simple Practice Exercise
Hand:
♠ KQ74
♥ A83
♦ J52
♣ K94
You have 13 HCP. Balanced hand.
Correct opening?
→ 1NT (15–17 required) ❌
→ 1♣ or 1♦? ❌
→ 1♠? ❌
Wait and count again.
KQ = 5
A = 4
K = 3
J = 1
Total = 13
You are balanced but only 13 → not strong enough for 1NT.
Best bid → 1♣ (longest minor)
Already, bidding requires logic.
💡 Quick tip:
- Balanced 12–14 usually opens 1 of a suit.
- Don’t open 1NT without the proper range.
- When in doubt, choose the bid that best describes strength first.
Final Advice: How to Improve Faster
- Review auctions after every session.
- Discuss misunderstandings with your partner.
- Practice online with robots to test bidding decisions.
- Study common auction patterns repeatedly.
Bridge bidding is not about memorizing hundreds of conventions.
It is about:
- Clear ranges
- Logical communication
- Partnership trust
When you understand what each bid promises, you stop guessing.
You start speaking bridge fluently.
Rules summary
♣️ Basics:
Object, setup, players
♦️ Bidding:
How to make a contract
♥️ Play:
Tricks and strategy
♠️ Scoring:
How points are counted
🃏 Conventions:
Standard bidding systems
📖 Glossary:
All the bridge terms
Frequently Asked Questions
Bidding in bridge (also called the auction) is how partners communicate to decide the final contract. Players take turns making bids that describe their hand’s strength (measured in high card points) and distribution (suit length). Each bid must be higher than the previous one and helps partners determine how many tricks they can win and whether to play in a suit or in notrump. The final bid becomes the contract, which the declaring side tries to fulfill during play.
Bridge partners communicate by using an agreed bidding system. Each bid shows specific information about point range, suit length, and intentions (such as inviting to game or forcing to game). For example, opening 1NT typically shows a balanced hand with 15–17 points, while raising partner’s suit shows support. Through this structured exchange, partners identify fits, evaluate combined strength, and choose the best contract without speaking directly.
In general, a partnership needs about 25 combined high card points (HCP) to bid game. For example, 3NT requires 9 tricks, while 4♥ or 4♠ requires 10 tricks. If one partner opens with 15–17 points and the other has 8–10 points, they may invite or bid to game depending on the exact strength. Distribution and suit fits can also influence whether game is appropriate, especially in suit contracts.
Play: Tricks and Strategy
Understand how each trick unfolds and how teamwork turns good hands into great results. Learn the essential strategies that make Bridge so fascinating.
