RKCB: first answer 5[Cl]/5[Di] and next step.

[Lovera]

If, instead, the answer was 5NT this means that the partner has either the Queen of trump without King(s) aside or that in the suit of the request there is the King without the Queen of trump. In this case the direct bidding of this suit denies the Queen of trump, the bidding at level 6 of the agreed trump shows the trump Queen without collateral King(s) and, at the same time, means that there are no top distributional points. For this, the bidding of a suit shows that: in the indicated suit (where the partner has an Ace) there is a stiff Ace. If the partner bids, instead, a suit where he does not have an Ace, he indicates that in the suit of the query (i.e. ♦) he has an isolated Ace. If, to complete, the bidding should continue beyond 6 of trump agree, this would show interest from part of the opener in reaching the grand slam with a dual answer from the partner: closing at level 7 or, if not, the most useful between 6NT and pass indicating that there are no top distributional points.

[Lovera]

The following hand comes from my topic "About the sacrifice bidding" in # 5 ( http://www.rpbridge.net/7x32.htm) and is the "Problem 6" (see for the play planning) and is obtained simply by reversing the K of S in ♠ with the Q of N and in ♣ the K of S with the Ace of N (to have 3 keys in S): North ♠ KJ ♥ A975 ♦ K32 ♣ KQ62 South ♠ KQ8654 ♥ Q64 ♦ A ♣ A104.The bidding (as indicated, opp silent) goes:S 1 ♠ -N 2NT (Jacoby), 3 ♠ (= strong with a stiff) - (if N instead of cue-bidding bids) 4NT ♠, 5 ♣ (= 3 keys) -5 ♦ (=?), 5NT (= trump Q alone / K in ♦ w / o tr. Q) -6 ♣ (=?), 6 ♥ (= the suit where the partner does not have the Ace indicates, as a positive answer, the isolated Ace to ♦ plus the Queen of trump) -7 ♠.

[pescetom]

Lovera, that is like swimming in treacle :blink:

 

Do you mean this?

If so can you copy it into a post of yours, correct any errors and add an explanation to 6C?

 

 

[hv=pc=n&s=saq8654hq64dacat4&n=skjha975dk32ckq62&d=e&v=e&b=6&a=p1sp2np3sp4np5cp5dp5np6cp6hp7sppp]360|240[/hv]

 

1 ♠

2NT (= Jacoby)

3 ♠ (= strong with a stiff)

4NT (= RKCB(♠))

5 ♣ (= 3 keys)

5 ♦ (= Q ask)

5NT (= trump Q OR K in ♦ without trump Q)

6 ♣ (=?)

6 ♥ (= the suit where the partner does NOT have the A indicates, as a positive answer, the singleton A of ♦ plus the trump Q)

7 ♠

[Lovera]

Lovera, that is like swimming in treacle :blink:

 

Do you mean this?

If so can you copy it into a post of yours, correct any errors and add an explanation to 6C?

 

 

[hv=pc=n&s=saq8654hq64dacat4&n=skjha975dk32ckq62&d=e&v=e&b=6&a=p1sp2np3sp4np5cp5dp5np6cp6hp7sppp]360|240[/hv]

 

1 ♠

2NT (= Jacoby)

3 ♠ (= strong with a stiff)

4NT (= RKCB(♠))

5 ♣ (= 3 keys)

5 ♦ (= Q ask)

5NT (= trump Q OR K in ♦ without trump Q)

6 ♣ (=?)

6 ♥ (= the suit where the partner does NOT have the A indicates, as a positive answer, the singleton A of ♦ plus the trump Q)

7 ♠

 

6♣ is a substitute of 5NT (as in RKB) and the answer serves to know what partner has, as told in #76. When is bidding a suit the partner is indicating: trump Queen + a stiff Ace but in this case "If the partner bids, instead, a suit where he does not have an Ace, he indicates that in the suit of the query (i.e. ♦) he has an isolated Ace".

[pescetom]

My suggestion was that you copy what I offered into a post of yours (not quote it), correct any errors and add better explanations.

I do not fully understand your post #76 and I haven't seen you offer any clear rebuttal of the precise objections of stephen_tu, but in any case I think the best way to explain yourself is to take over this example and make it clear so that people understand your logic.

I'll be in Bari at the end of the year if you want to give me the low down in Italian B-)