View source for User:Brian/Bridge/Opener's rebids following one-over-one

Partner's response shows 4+ of the bid suit and 6+ HCP. It is unlimited and one-round-forcing (that is, you are not allowed to pass).

If partner bid a major, the first priority should be supporting that major if possible.

Partner bid a major and I have 4+-card support with 15- total points &rarr; Bid 2M.

Partner bid a major and I have 4+-card support with 16&ndash;18 total points &rarr; Bid 3M.

Partner bid a major and I have 4+-card support with 19+ total points and a void or small singleton in a side suit &rarr; Jump shift into the side suit, showing a [[User:Brian/Bridge/Rebids after a splinter raise|splinter]].

Partner bid a major and I have 4+-card support with 19+ total points and no slam interest &rarr; Sign off in 4M. If partner bids again, it is a [[User:Brian/Bridge/Control bidding|control bid]] or [[User:Brian/Bridge/Responding to Blackwood|Blackwood]].

Partner bid a major and I have 4+-card support with 19+ total points and slam interest &rarr; Make a [[User:Brian/Bridge/Control bidding|control bid]] or bid [[User:Brian/Bridge/Blackwood|4NT]].

I have a one-suited hand with 16- total points &rarr; Rebid your suit.

I have a one-suited hand with 17+ total points &rarr; Jump-rebid your suit.

I have a 4+-card suit higher than partner's suit with 16- HCP &rarr; Show the new suit.

I have a balanced hand with 12&ndash;14 HCP, or my only shortness is in partner's suit &rarr; Rebid 1NT.

I have a balanced hand with 18&ndash;19 HCP, or my only shortness is in partner's suit &rarr; Rebid 2NT.

I have a balanced hand with 20+ HCP, or my only shortness is in partner's suit &rarr; Rebid 3NT.

I have 4+-card support for partner's diamonds &rarr; (TODO: Analogous to raising partner's major? Except in this case we want to avoid bypassing 3NT. I don't think I ever learned the standard rebids for this case...)

I have 5+ of the suit I opened and 4+ of a lower suit with 19+ total points &rarr; Jump-shift into your other suit (i.e., bid it at the 3 level).

I have 5+ of the suit I opened and 4+ of a lower suit with 18- total points &rarr; Bid 2 of the new suit.

I have 5+ of the suit I opened and a 4-card suit higher than the one I opened, with 17+ total points &rarr; Bid your other suit. (This is called a '''reverse'''.)

Otherwise:
* Do you have a balanced hand with 15&ndash;17 HCP? Next time remember to open 1NT to avoid rebid problems. 1NT openings lend themselves to the most precise and well-understood bidding sequences.
* There are some weird distributions where you don't have a good rebid. For example, 4441 distributions often pose problems. If you have 1 spade, 4 hearts, 4 diamonds, and 4 clubs with 15 to 16 HCP, you open 1&diams;, and partner responds 1&spades;, none of the above options applies. You couldn't have opened 1NT with the singleton, a 1NT rebid at this point would be an underbid, 2&clubs; would mislead partner into thinking you have 5 diamonds, and 2&hearts; would show reverse-worthy strength. What do you do? Use your judgement and pick the least bad option, all things considered. Likewise, with 17+ HCP, 4 spades, 4 hearts, 1 diamond, and 4 clubs, if you open 1&clubs; and partner responds 1&diams;, a 1&hearts; or 1&spades; rebid would be an underbid and a 2&hearts; or 2&spades; response would misstate your distribution. This latter case is solved by the "Multi 2&diams;" convention, which is not discussed here.