Post by KWSchneiderWe don't often play against the multi in NA, but I'm confused about the
efficiency of using X as a TO of hearts in the sequence 2D(P)2H.
Since RHO's spades are equal or longer than their hearts, doesn't it
stand to reason that you will more often have longer hearts than spades
in this auction? And as such, from a 'best use of space' principle,
wouldn't it be more effective to have X show hearts, and 2S to show 5+s?
2N could easily be a TO for the minors.
YMMV...
Accuracy is more important than efficiency. You are most likely to
have a takeout double of the opponents' major, and this is best shown
accurately by X = takeout of one of the majors and 2H = takeout of the
other. (X = t/o of H is of course worst since it leaves no takeout
bid for very strong hands with H.)
Not allowing 2H natural is probably an advantage. If you have hearts,
then the opponents have spades, so it is not very useful to find your
heart fit unless you have the extra strength or length needed to outbid
the opponents. Partner might have the extras but then X or 2H (normally
showing 4-5 hearts) will probably work OK. 2H for takeout forces you
to have one of these to bid a disciplined 3H, preferably the extra
length.
Suppose you play an ambigous double showing any hand unsuitable for
an unusual 2NT (ugh) and too strong for a natural 2H/2S/3C/3D/3H/3S.
This should work about as well as a 1-level takeout double showing
an opening hand. That is, not very well if the opponents know how
to bid, since of course you don't augment the double with black magic.
The basic defense is to preempt. Preempting is much easier after
a Multi opening than 1-level opening since opener is limited (except
in hobbled versions which require a strong option that is not strong
enough to be be unambiguous). Even baby psyches might work, but in
Multi there aren't really any psyches, just systematic pass/correct/
paradox bids which look like psyches to inexperienced opponents.
It is unclear how much the double should affect pass/correct responses.
I play that over X, pass and 2M are to play (with my suit ostensibly
better than opener's) and XX is t/o. I don't change the responses at
higher levels, since this would be complicated and it is necessary to
preempt often with no major length except 2+ in both, so some form of
pass/correct is needed. Many play pass/correct responses or usually
bid 2H over the double at the 2 level too, since you are unlikely to
have a suit better than opener's major and the both XX for t/o and 2S
pass/correct help the opponents more.
Bruce