cherdano, on Feb 17 2006, 07:02 PM, said:
Richard, I think you have it the wrong way round. 3N is a showing bid, not an asking bid. I would never define "what hands pass 3N" in any partnership (if we even got to discussion this), if I would discuss anything, it would be opener's 3N bid:
Scientific systems often have bidding sequences that clearly that unambiguously differentiate between bids that ask and bids that show. A relay bid is a simpliest example of an asking bid.
Players who use more natural methods often face more ambiguity: Consider the "natural" 3NT bid being discussed. If we describe the bid in one way, 3NT shows a specific type of hand. You say that 3NT is a
>This is a 5332 hand with no weak doubleton; also it won't be a hand full of aces
>and kings, but rather slow values. A little extras for a GF wouldn't hurt either.
However, its equally valid to describe the hand asking partner to bid 4
♠ unless he holds suitable for 3Nt opposite a 5332 hand with no weak doubleton (yada, yada, yada). Two flip sides of the same coin. Either framework is equally valid...
In this example, I wanted to focused on how narrow a target the natural 3NT bid caters to. I want examples of hands that chose to pass 3NT rather than correcting to 4S. Accordingly, it seems appropriate to frame this as an asking bid.
I'll note in passing that even highly scientific systems often contain this same duality between asking and showing bids. Most realy systems have well defined rules that assign specific meanings to relay breaks. According, even a relay often asks and shows. (This duality is an very important consideration in systm design. A system based purely on first asking bids is going to have a large number of vacant bidding sequences, which can't be good)
1NT(1) - 2♥(2)
3♠(3) - 3NT(4)
All Pass