Responding to one of a suit
A response is the answer to partner’s opening bid, and the player making it is the responder.
When it is used
When partner opens one of a suit, the first question is: do I have a fit? If yes, support partner. Count your points; the total decides the level you raise to: pass with 0 to 5, a single raise with 6 to 9, a double raise with 10 to 12 and a game raise with 13 to 15.
Each raise is a limit bid: it tells partner your strength, and once you have made it you are not required to bid again. No fit? Try no‑trumps, or bid your own suit.
With 1♣ or 1♦, supporting partner is your last resort: a minor-suit game needs 11 tricks, so look first for a major or a no‑trump response.
In each system
- ACOL
- A fit means four cards in partner’s suit.
- Strong No‑Trump and 5‑card majors
- When partner opens a major they promise five cards, so three cards in partner’s major is a fit.
An example in ACOL
Partner has opened 1♠. You hold this hand.
- ♠ K 8 5 3
- ♥ 7 5 2
- ♦ Q 9 4
- ♣ K 7 2
Raise to 2♠: four-card spade support and 8 points, the textbook single raise.
Where we teach it
Taught in the Beginner course, in the Responding to Suit Openings topic, in both systems, ACOL and 5‑card majors.
Learn it properly
Bridge Unlocked teaches the game step by step, with real hands to play. Bridge Basics is free.