Bridge Conventions

Bridge conventions are bids with an agreed artificial meaning. Partnerships need them because natural bidding runs out of room quickly. There are only so many bids between 1♣ and 3NT, and a pair that uses every one of them in its plain meaning has no way to ask whether partner holds four spades, or how many aces, or whether a raise is weak or strong.

This page lists the bridge bidding conventions club players meet most often, grouped by the auction they belong to, with a full guide for each.

A convention is any bid whose meaning is not the obvious one. When partner opens 1NT and you bid 2♣, you are not showing clubs. You are asking for a four-card major. That is Stayman, and it is a convention. A natural bid, by contrast, says "I have this suit" or "I want to play here."

Three rules govern conventions at the table:

• The opponents are entitled to know your agreements. Most artificial bids must be alerted, and a few (transfers, for example) are announced. Your convention card lists what you play.
• Both partners must know the convention. If one partner forgets a convention, the auction usually goes wrong.
• Each convention gives something up. A 2♦ opening that shows a weak two cannot also show Flannery. Pick the meaning that comes up more often or solves a bigger problem.

The first conventions to add are the ones that come up every session: responses to 1NT, an ace-asking bid, and the doubles. Slam tools and gadgets for rare shapes come later. The full order we suggest is near the end of this page.

A 1NT opening is the most precise bid in Standard American, so most of the conventions players add first are responses to it.

Slam conventions check two things, whether the partnership holds the controls and whether the two hands fit. The ace-asking bids handle the first, splinters and Jacoby 2NT the second.

These conventions describe support for partner's suit precisely, or let the partnership ask questions after a quiet start to the auction.

Doubles do most of the work when both sides are bidding. Of the conventions in this group, the negative and takeout doubles are the ones every partnership needs.

Natural overcalls of 1NT leave many hands without a bid. Each of these methods adds two-suited and one-suited options.

Standard American keeps 2♣ for strong hands and uses the other two-level openings for weak or very specific hands.

The Bidding Architect's library holds many more conventions than the ones with a guide so far, each as a full bidding tree you can copy into your own system. Among them:

• Smolen and Puppet Stayman, two extensions of Stayman over 1NT and 2NT.
• Support doubles, where opener doubles to show three-card support for responder's major.
• The Lightner double of a slam, asking for an unusual lead.
• Leaping Michaels over the opponents' weak two openings.
• Kickback and Exclusion Blackwood, two key card asks that save room.
• Help suit game tries after a major suit raise.
• Multi 2♦, Namyats and the Gambling 3NT opening.
• Strong 2♣ with its full set of responses.

Browse them all in the Bidding Architect.

For a new partnership playing Standard American or the SAYC card, this order gives the most benefit for the least memory work. Other teachers order the middle of the list a little differently.

1. 1.Stayman and Jacoby transfers. You will use them several times a session.
2. 2.The takeout double and the negative double. Without them, competitive auctions turn into guesswork.
3. 3.Weak two bids. Most players already know them; agree on the suit quality and the meaning of 2NT.
4. 4.Blackwood, then Roman Key Card Blackwood once both partners are comfortable.
5. 5.Jacoby 2NT and splinter bids, for game-forcing major suit raises.
6. 6.New minor forcing or fourth suit forcing, for the rebid problems that follow a quiet start.
7. 7.A defense to 1NT, such as Cappelletti or DONT, and Michaels with the Unusual 2NT.
8. 8.Everything else, one convention at a time, once the basics are automatic.

If you want a one-page summary of a full system rather than a list of gadgets, start with the bridge bidding cheat sheet or the 2 over 1 game force guide.

What are conventions in contract bridge?

A bridge convention is a bid with an agreed artificial meaning, such as 2♣ over partner's 1NT asking for a four-card major. The ones almost every club partnership plays are Stayman, Jacoby transfers, Blackwood, the takeout double, the negative double and weak two bids.

Which bridge conventions should a beginner learn first?

Start with Stayman and Jacoby transfers, then the takeout double and the negative double. Weak two bids and Blackwood come next. Four to six conventions are plenty for a first year, and each new one should wait until both partners use the last one without thinking.

What are the five most useful bridge conventions?

For a club player, Stayman, Jacoby transfers, the takeout double, the negative double and Blackwood. They come up in almost every session, which is why they sit at the top of the learning order on this page.

What is 25 Bridge Conventions You Should Know?

It is a popular teaching book by Barbara Seagram and Marc Smith, with one chapter per convention. The tables on this page cover the same kind of everyday conventions, and each one links to a full guide with examples.

Which bridge conventions are alertable?

In ACBL events the general rule is that an artificial call, or a natural call with an unexpected meaning, must be alerted. A few conventions are announced instead, transfers over 1NT for example, and some everyday ones need no alert at all. The details change from time to time and differ by country, so check the current alert regulations where you play.

Is there a printable list of bridge conventions?

This page is the list, grouped by auction, and you can print it as a reference. For a one-page summary of a whole bidding system rather than a list of gadgets, use the bridge bidding cheat sheet.

Is Stayman a convention or a system?

Stayman is a convention, a single artificial bid within a system. A system, such as Standard American or 2 over 1, is the complete set of agreements a partnership uses, conventions included.