[wzhong]

New to the forum. Played bridge via BBO for a while. I am using SAYC bidding system. Just like to confirm what is correct for bidding since someone raised concern of these.

1) Open 1H, respond 2S (weak with 6 card suit), opener bid 3C, Is it force? or you can pass if no support.

2) Open 1S, respond 2D, Opener bid 2S (5 cards with low points? or 6 card with low points?, I got someone told me to bid 2NT if 5 cards low point.)

[awm]

1) In SAYC jump shifts are strong and game forcing. Obviously you can agree that 2♠ is weak with partner if you want, but this is not part of SAYC.
2) In SAYC, a 2/1 call promises a rebid unless opener's second call is at the game level. So 1♠-2♦-2♠ is forcing one round. A minimum responder will normally bid 2NT or 3♦ next (depending on shape).

[wzhong]

thanks awm. It is cleared on question 1.

2) if 1S-2D (forcing) -2S (<15pt, 5card, mini responded to forcing). Then, it is not forcing, am I right? Surely responder can bid 2NT to stop it. any new suit is another forcing for opener to bid, am I right?

3) In SAYC, 1S (5 card major) -2D (forcing) -2S bids show 5 card or 6 card of S suit?

[awm]

Since responder promises a rebid, bids by opener above two of his major must show extras (as they are forcing). So a sequence like 1s-2d-2s could be 5s-4c and minimum, or 5332 and minimum, etc. However it could also be a quite good hand with six or more spades (a 3s rebid should be a very good suit).

Responders non-forcing bids below game after opener rebids 2M are 2nt and a rebid of his suit. A new suit is forcing. Three of openers major should be forcing, because 1M-3M was the limit raise (and only shows 3+ support in SAYC).

[wzhong]

thanks AWM