Tuesday, June 20, 2023

Lesson 6(c) - responder bids notrumps

How opener takes charge after responder bids notrumps over the major 

¨    when responder bids 1NT - 6‑9 HCP 

With a mini, opener tells responder to play only in a partscore but still has to find the best strain.  In order of preference: 

(1)  Opener bids two of a lower-ranked four- card or longer suit, but NOT a higher suit 

       e.g.  After 1©:1NT bid 2§ with

       ªx  ©AKJxx  ¨Jxx  §KJTx     

(2)  Bids 2 of 6+card opened major 

e.g.  After 1ª:1NT rebid 2ª with

ªKJTxxx ©Jxx ¨Ax §Kx 

(3) Passes with neither of the above 

       e.g.  After 1©:1NT pass with

       ªQx ©AKQxx ¨Jxx §Qx 

 

With a midi, opener invites to game while still fishing for the best strain 

(1) Opener rebids 2NT with a balanced(ish) hand i.e. no singletons or voids 

      e.g. After 1©:1NT, invite game in notrumps

      with 2NT holding ªAJxx ©AQxxx ¨QJ §Kx

 

(2) Opener jump rebids three of the opened major with a good 6+ suit 

e.g.  After 1ª:1NT, invite 4ª or 3NT with a 3ª bid holding ªAKJxxx  ©Ax  ¨AJx  §Jx 

(3) Opener bids two of a higher-ranked four-card or longer suit.  This strong action is called a reverse, & is forcing for one round over a one-level response (1RF) 

e.g. After 1©:1NT invite game in NT  by reversing to 2ª (even though partner  

can't have 4ªs) holding    

ªAJxx  ©AQxxx  ¨AQx  §x 

(4) Opener bids two of a lower-ranked four-card or longer suit, non-forcing.  This is consistent also with a mini opening (drat!) 

      e.g. After 1©:1NT, bid 2§ with

      ªx  ©AJTxx ¨KJx  §AQJx 

 

With a maxi, opener either bids game if confident of where to play, or else forces to game by jump shifting to a second suit. 

(1) Opener bids 3NT if balanced-ish 

      e.g.  After 1©:1NT jump to 3NT with 

     ªKQx  ©KJxxx ¨AQx  §Ax 

(2)  Opener jumps to four of the opened major with an excellent 6/+ suit 

      e.g.         After 1ª:1NT bid 4ª with

      ªAKJT9x  ©x  ¨Ax  §AQJx 

(3) Opener jump shifts in a new 4+ suit,  forcing to game   

      e.g. After 1©:1NT jump shift to 3¨ with

      ªx  ©AKxxx  ¨AQJx  §AJx  


¨    when responder bids 2NT (showing a balanced 13‑15 without a four-card or longer new Major that could have been bid at the one level)

 

Even when holding a mini opener cannot stop short of game. It is usually merely a matter of which game, although slam is not impossible if a new fit is uncovered. 

(1) Opener bids 3© after a 1ª opening with four or more hearts 

      e.g. After 1ª:2NT bid 3© with

      ªAJxxx ©KJxx ¨Ax §Jx 

(2)   Opener bids four of 6+card major with a poor opening 

e.g. After 1©:2NT, terminate the bidding with a 4© bid holding ªQxx ©KJTxxx ¨KQx §x 

(3)   Opener bids three of a 6-card major if in the upper minimum range 

e.g.  After 1ª:2NT, leave the door to slam open by bidding 3ª with

ªAKJxxx  ©Kxx  ¨Kxx  §x

(4)   Opener bids three of a 4+card minor with concentrated values in the two suits 

e.g.  After 1©:2NT, bid 3¨ with

ª©AQJxx ¨KQJx §xxx 

(5)   Opener bids 3NT with most other hands

e.g. After 1©:2NT, shrug and bid 3NT with a semi-balanced   ªKx  ©Kxxxx  ¨Kxxx  §KJ 

 

When opener holds a midi or maxi

Slam is very likely. 

Unless 5-3-3-2 (when notrumps will be the strain) look for a suit fit and then, if the numbers compute, bid slam, using Blackwood if sensible to check on aces. 

(1)  Opener bids 3 of 4+ card second suit looking for a fit 

(2) Opener bids 3 of 6+ card opened suit, setting that suit as trumps 

(3) Opener jumps to 4 of a minor with 5-5 shape or better 

(4) Opener bids 4NT with 18-19 bal. to invite slam in notrumps if responder is maximum

  

¨    when responder bids 3NT (showing 16‑I7 HCP and no 4+ Major that could have been bid at the one-level)

 

Opener with a mini         

(1)  Bids 4 of 6+card opened major - terminal 

(2)  Bids 4© after opening 1ª with a 5-5 shape in the majors, looking for a heart fit 

(3)  Passes 

 

Opener with a midi         

(1)   Bids 4 of 6+ card opened suit 

(2)    Bids 4 of a second 5-card major or 5-card minor, looking for a fit 

(3)   Passes 

 

Opener with a maxi       

(1)  Bids 6 of 6+ card opened suit, since there must be a fit

(2)    Bids 6 of second 5-card suit, since responder must have a fit in that suit (having shown only a doubleton in the opened major) 

(3)  Bids 4 of 4-card minor and goes on to slam in that minor with a fit, or else slam in notrumps, with the next bid 

(4)   Bids 6NT with a flat 18-19 since the combined assets are 34-35 

Notice that after a 2NT or 3NT response, opener is in charge of finding the right strain and level. Bidding game asks responder to pass. 

 

QUIZ

2.    What is your rebid as opener after

(1)  1©‑1NT  

(2)  1©‑2NT on each of the following? 

a.  ªAxx  ©AKxxxx  ¨xxx  §x  (13 opening points)

b.  ªKx   ©AQxxx  ¨AQxx  §Ax

c.   ªx  ©AQJxx  ¨Jxx  §AQxx


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