Opener's second bid after an initial one no-trump opening, and a suit response from partner

Don't forget that all the bidding on this page assumes no part-score. With one, you would make the most economic bid to get game and rebids that may be theoretically correct go out of the window.

We have opened 1NT, so we have 12-14 points and a balanced hand. Partner has responded in a suit. Let us consider the options.

1)  Partner has bid a suit at the two level. This is a weakness take-out and must unconditionally be passed. If you are playing Stayman, then 2C is asking about your holding in the major suits. This is the most likely position for opponents to intervene and you will probably have to pass. If partner is strongish for her weakness take-out, she may compete.

2)  Partner has bid a suit at the three level. If this is a major,--3H or 3S, then partner has made a bid that is forcing to game. If you have three cards in her suit, you will bid 4H or 4S,while if you have only two cards in her suit, you must bid 3NT.

If partner's bid at the three level is 3C or 3D, this is unhelpful. You must bid again and best responses are probably 3NT or a major if you have one. If, after this, partner bids 4C or 4D, then I don't know. If you think she knows what she's doing, put her to game. Otherwise, pass.

3) If partner has bid 4H or 4S, pass. If she has bid 4C or 4D, find another partner.

4)  Bids of a suit at the 5, 6 or 7 level from partner are highly unlikely and are best passed.