Open 2♣ with about 22 or more high-card points, or with a hand that can take about nine tricks on its own; the bid is artificial and forcing. Open 2NT with a balanced 20-21. Those are the 2/1 Game Force ranges, and SAYC uses the same ones.
Big hands are rare: you hold 22 or more HCP in fewer than 1 deal in 200. But when they come, a one-level opening is dangerous, because partner passes with 5 points and you miss game. The strong openings make partner keep the auction open.
In Acol, 2♣ is also the strongest opening (often 23 or more, or a game-forcing hand), and 2NT usually shows 20-22. Some Acol players still use strong two-bids in the other suits, showing about eight playing tricks.
The Strong 2♣ Opening
2♣ says nothing about clubs. It says: "I have a very strong hand; do not pass until we reach game", with the exceptions explained below. Open 2♣ with:
- 22 or more HCP with any shape, or
- about nine playing tricks with a strong major suit, even with fewer points. A hand like ♠AKQJ1074 ♥AK5 ♦A4 ♣2 is a 2♣ opening.
Count playing tricks honestly. A long suit with gaps, such as KJ8753, is not six tricks.
The Reply and Opener's Second Bid
Most pairs play 2♦ as a waiting reply: artificial, any hand without a good suit to show. It gives opener room to describe the hand at a low level.
| Reply to 2♣ | Meaning |
|---|---|
| 2♦ | Waiting: any hand without a positive reply |
| 2♥, 2♠, 3♣, 3♦ | Positive: a good five-card suit and about 8 or more HCP |
| 2NT | Positive: balanced, about 8 or more HCP |
Some pairs use 2♥ as a "double negative" with 0-3 or 0-4, and 2♦ as a positive or waiting reply. Agree which version you play before your first session.
Now opener describes the hand:
- 2NT = 22-24 balanced. This is the one auction partner may pass, with nothing at all. Otherwise partner uses Stayman and transfers exactly as over a 2NT opening.
- 3NT = 25-27 balanced.
- A suit (2♥, 2♠, 3♣, 3♦) = natural, at least five cards, forcing. Many pairs let responder show a very weak hand with a second negative on the next turn: after a 2♥ or 2♠ rebid, that is 3♣, the cheaper minor. Then opener may stop in three of the major.
More detail, including the common reply schemes, is in the strong 2♣ opening. To compare systems, see what 2♣ means in every system: in Precision, for example, it is not a strong bid at all.
Opening 2NT
With a balanced 20-21, open 2NT. The replies copy the replies to 1NT, one level higher:
- Pass with 0-3 HCP.
- 3♣ is Stayman, asking for a four-card major.
- 3♦ and 3♥ are Jacoby transfers to hearts and spades.
- 3NT to play with about 4-10 HCP and no major to show.
- 4NT is a natural slam invitation, not a question about aces.
Since 4 points opposite 21 make 25, you bid game with very little. Partner knows this and will not punish you for a thin 3NT.
Watch It in a Deal
You are South, the dealer, with a big balanced hand.
2♣ then 2NT shows 22-24 balanced; partner bids game with 6.
You hold 23 HCP, balanced. Too strong for a 2NT opening (20-21), so open 2♣ and rebid 2NT to show 22-24. Partner's 2♦ said "no positive reply yet"; now, with 6 HCP and no four-card major, partner simply bids 3NT.
Open 1♦ with this hand and a partner with 3 or 4 HCP passes, although 23 opposite 3 is often enough for game. The 2♣ opening keeps the auction open for exactly that case. Double dummy, 3NT by South makes ten tricks.
Before You Open a Big Hand
Rule of ThumbCount high-card points, then check shape. Balanced 20-21: open 2NT. Balanced 22-24: 2♣, then 2NT. Balanced 25-27: 2♣, then 3NT. Unbalanced: open 2♣ only with about 22+ HCP or nine playing tricks; otherwise open one of your suit and jump on the rebid.
Practice: Strong Openings
Partner opens 2NT (20-21 balanced). Your bid?
Partner opens 2NT, showing 20-21 balanced. What do you bid?
Your hand:
Strong hands are rare at the table, so the bidding feels new each time. The BridgeDummy Bidding Room deals random hands for you and EPBot robots in 2/1, SAYC, Acol, Precision or Polish Club, and you can bid many deals in one sitting until 2♣ auctions feel routine.
Previous lesson: Lesson 18: Responder's Second Bid. Next lesson: Lesson 20: Preempts. Full course: Bridge lessons for beginners.