hrothgar, on Aug 12 2004, 11:48 AM, said:
2. 4NT with a King
3. A new suit with either an Ace or a void in that suit
New suits are control asking bids. Partner will rebid
1. 5 of his major with no control
2. Step with a second round control in the suit
3. Step +1 with a first cound control in the suit
4N is a control ask in the Intermediate suit.
1. After a 4♣ opening, 4N is a CAB in Diamonds.
2. After a 4♦ opening, 4NT is a CAB in Hearts
5NT = Asks partner to bid 7 with 0 trump losers
Richard is correct.
However, I think this structure has one small flaw.
Suppose pard opens 4C (=Hearts).
We respond 4D = asking for 1st round controls or side K. (If pard bids a suit, he has 1st round control there.)
Pard bids 4NT = no 1st rnd control, but one side K.
Now, in the "standard" structure, 5C asks "which King " ?
But what will pard bid if his K is the Spade K ? He does not know whether the SK is useful or not, and bidding 5S may get us too high.
Yet, there is a solution.
The solution is that, in the specific sequence of Namyats for H:
4C:4D
?
The meaning of 4S and 4NT are switched:
instead of the "normal" meaning of:
1) 4S = 1st round cue in S and 4NT = I have an unspecified K
we shall use
2) 4NT = 1st round cue in S and 4S = I have an unspecified K.
In this second version, after 4S = 1K, we have room to inquiry with 4NT for which of the 3K.