View source for User:Brian/Bridge/Rebids after a 2NT opening

See [[User:Brian/Bridge/Responding_to_a_1NT_opening|Responding to a 1NT opening]] for an explanation of the Stayman convention and Jacoby transfers.

This page should also be used after a 2&clubs; - 2&diams; - 2NT "delayed 2NT opening", which shows a balanced hand with 22-24 HCP.

==Without interference==
{|class="wikitable"
|+ Meanings of partner's responses
! The following response to 2NT... !! means...
|-
| 3&clubs; 
| The Stayman convention, showing invitational or greater strength and asking for a 4 card major. To respond, see the table below.
|-
| 3&diams;
| A Jacoby transfer, showing 5+ hearts and asking you to bid hearts so you become declarer. Announce "transfer", then bid 3&hearts;. If partner bids again, see the table below.
|-
| 3&hearts;
| A Jacoby transfer, showing 5+ spades and asking you to bid spades so you become declarer. Announce "transfer", then bid 3&spades;. If partner bids again, see the table below.
|-
| 3NT
| To play.
|-
| 4NT, 5NT, 6NT, or 7NT
| A [[User:Brian/Bridge/Quantitative notrump raises|quantitative raise]]; respond accordingly or pass.
|-
| 4&clubs;
| [[User:Brian/Bridge/Responding to Gerber|Gerber]], asking for aces.
|-
| 4&diams;
| 6+ hearts and game-forcing strength, asking you to bid hearts so you become declarer. Announce "transfer", then bid 4&hearts;.
* Most of the time, partner will pass.
* If partner bids again, it is a slam try: either a [[User:Brian/Bridge/Control bidding|control bid]] or [[User:Brian/Responding to Blackwood|Blackwood]].
|-
| 4&hearts;
| Like 4&diams;, but a transfer to spades instead.
|}

{|class="wikitable"
|+ Responses to Stayman
! If... !! then...
|-
| I have 4+ hearts
| Bid 3&hearts;.
* If partner responds 3NT, it means they have 4 spades, 3- hearts, and game-forcing strength. Pass to deny 4-card spade support, or raise to 4&spades; with 4+ spades.
* If partner responds 4&hearts;, it is a sign-off. Pass.
* Any other response by partner shows suit agreement and is a slam try: either a [[User:Brian/Bridge/Control bidding|control bid]] or [[User:Brian/Bridge/Responding to Blackwood|Blackwood]].
|-
| I have 4+ spades
| Bid 3&spades;.
* If partner responds 3NT, it means their 4-card major was hearts. You already denied 4 hearts, so this is a sign-off bid. Pass.
* If partner responds 4&spades;, it is a sign-off. Pass.
* Any other response by partner shows suit agreement and is a slam try: either a [[User:Brian/Bridge/Control bidding|control bid]] or [[User:Brian/Bridge/Responding to Blackwood|Blackwood]].
|-
| I have no 4-card major
| Bid 3&diams;.
* If partner responds 3NT, it is a sign-off. Pass.
* If partner responds 3 of a major, it is a Smolen transfer, showing 4 of the bid major and '''5 of the other major''' (oM). Alert partner's bid. With 3-card support for oM, raise to 4oM; any subsequent bid by partner is a [[User:Brian/Bridge/Control bidding|control bid]] or [[User:Brian/Bridge/Responding to Blackwood|Blackwood]]. Lacking 3-card support for oM, rebid 3NT; any subsequent bid by partner is a [[User:Brian/Bridge/Quantitative notrump raises|quantitative raise]].
|}

{|class="wikitable"
|+ Rebids after accepting a Jacoby transfer
! If... !! then...
|-
| Partner rebid 3NT
| They have exactly 5 of the major. With 3-card support, sign off in 4 of the major. Otherwise, pass.
|-
| Partner rebid notrump at the 4 level or higher
| It is a [[User:Brian/Bridge/Quantitative notrump raises|quantitative raise]] and shows exactly 5 of the major. Lacking 3-card support, pass or sign off in notrump. With 3-card support, sign off in partner's major at the appropriate level.
|}