> Eric Leong- Hide quoted text -
>
> - Show quoted text -
This sounds very much like a US/UK difference in bidding approaches
(and although Barry has lived there for a long time, I doubt he's
forgotten his roots...).
In the UK approach, 3S is fourth suit forcing and generally denies
much in spades, although it might have something like Axx looking to
right-side 3NT. It's used in the same way as FSF in non-game-forcing
auctions, to allow other bids to be more precise: so 3D would show
5-6, 3H promises three hearts etc. So when I saw the auction, I
thought responder had an obvious 3NT bid over 3S, because opener's
hand was not a surprise.
In the US approach, bids in a forcing auction are 'natural' as you
have said you think it ought to be.
There are pros and cons of both approaches. The UK version gives you
a pass-the-time-of-day bid when you don't have anything more
constructive to say, allowing other bids to be more precise. UK
bidders say there's little point having the 4th suit as natural, you
can just bid NT if you have values there and if you bid 3S on
something like KQx or AQx and partner bids 3NT you might well be wrong-
sided. US bidders say they want to bid where they have values, and
this works better on slam bidding auctions because you have bid out
your high cards.
Most people think the version they have grown up with is better.
Where things go wrong, as on this auction, is where the two sides of
the partnership are treating the 3S bid differently: you think it
shows length/values in spades, Barry thinks it shows the opposite.