Before bidding, establish your adjusted point count: high card points (Ace 4, King 3, Queen 2, Jack 1) plus length points when opening, minus one for any singleton or doubleton containing a queen or jack with no higher honor (except K-Q, A-Q, A-J, and K-J pairs). Once a trump fit is agreed, supporting hands count shortness (void 5, singleton 3, doubleton 1) instead of length.

When responder bids a new suit at the two level, that bid promises enough strength for game, and the partnership may not stop below game.

This game-force rule requires two conditions: responder is an unpassed hand and the auction is uncontested. Unpassed hands with 10–11 points respond 1NT (semi-forcing).

Opening Bids

OpeningCondition
12+ adj. ptsAlways open.
11 adj. ptsOpen unless shape is 4-3-3-3.
10 HCP or fewerOpen if Rule of 20 is met (HCP plus lengths of your two longest suits equals 20).
♠ / ♥ (1♥, 1♠)5+ cards in the suit, up to 21 adjusted points. With two 5-card suits, open the higher-ranking. With 6-5, open the longer.
♣ / ♦ (1♣, 1♦)Up to 21 adjusted points, denies a 5-card major. Open longer minor; with 4-4, open 1♦; with 3-3, open 1♣.
1NT15–17 balanced adjusted points (no singleton or void). Exceptions: 6-card major or 5-4-2-2 shape open the major/5-card suit first.
2NT20–21 balanced adjusted points.
2♣Strong, artificial, forcing opening for 22+ balanced points or 9+ playing tricks.
Weak Two (2♦, 2♥, 2♠)5–10 points with a good 6-card suit (do not count length in the bid suit).
3+ levelPreemptive bids showing 7+ card suits with less than opening strength.

Responses to 2♣

Responder must not pass:

  • 2♥: Bust (3 or fewer HCP, unless holding a guarded king).
  • 2♦: Waiting (hands not meeting bust or positive criteria).
  • Positive (2♠, 2NT, 3♣, 3♦): 8+ HCP and two of the top three honors in the named suit.

Competitive bidding and overcalled auctions are separate situations not covered here.

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