1nt: 11-15 hcps, must be balanced and must have 4-5 spades. Now 2c asks for size/shape, and the answers are 2d=not 5 spades/not 4 hearts; 2h=4-4 majors; 2s=5S332
From the Definitions of the GCC:
|Quote: ACBL GCC|
A notrump opening or overcall is natural if not unbalanced (generally, no singleton or void and only one or two doubletons).
It doesn't seem to say that you aren't allowed to make restrictive treatments - which is what your guaranteed 4
is. Nor do the "can't use conventions" restrictions apply - provided you do not cheat the HCP!
For exactly the same reason you can't play 10-12 and open 1NT with KQT9 KJT9 T97 T8, you can't play this and open KQT9 KQT9 T97 T8 1NT - or, at least, "if you both consider this appropriate, or if you have significant experience thinking that one of you considers it appropriate for a 11-15 1NT, you have more than a 5 HCP range, and can't use any conventions after". Better not open 1NT with T9754 Q32 AK2 AK, either.
You might be interested in Colin Ward's Valentines' 1NT opener
- it guarantees 4=3, 4=4, or 5=3(32) in the majors, but should have some ideas. That part of Valentines is GCC legal - the relay aspects of it, of course are a different story altogether :-)
I am not an ACBL employee, but I don't see any difference between "could be 5M332" or "can not be 5332 any" and "guarantees 4 spades".
[edited to clarify "relay aspects" statement] [1 edits; Last edit by mycroft at 18:23:11 Wed Apr 30 2003]