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08_3SUIT.CMA
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1995-08-21
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DEFENSE VS THREE-SUIT CONVENTIONS
This defense is designed for use against a 2C or 2D opening that
shows a 4-4-4-1 or 5-4-4-0 hand with 12-15 HCP or so (e.g., Roman
Two Clubs), a distinct overbid that should be punished regularly.
The following assumes a 2D opening, but the defense against a 2C
opening follows the same lines.
-- A double of 2D shows diamonds, and denies the ability to bid 3D.
It is the equivalent of a 2D overcall. If you have enough to bid
3D, do so, but be a little conservative because the suit is likely
to break badly.
-- A notrump overcall is natural, based on a long minor (which had
better be pretty solid, because it might not break well).
-- Other overcalls are natural, but remember that no suit will be
breaking evenly.
-- With other hands, even if strong, just pass. The 2D bid is
practically forcing, so you can act on the next round. The
opponents will often bid themselves into trouble if you don't let
them off the hook by bidding with a good hand. Let them play the
misfit hands instead of you. If the opening does get passed around,
as when third seat has a weak hand and great length in the suit,
fourth seat should prefer to open with 2NT rather than a suit bid
(because no suit will break well), or double for business when long
in the suit opened.
-- A double of a response to the opening is a two-way double:
either strong and long in the suit, or very short:
South West North East
2D Pass 2H Dbl
North's 2H bid is a sign-off if South has hearts. Lacking hearts,
North must bid the next higher denomination. West will be able to
tell by South's action which sort of double East has, because South
will bid if short in hearts. If East has strong hearts, the double
doesn't require great strength, since North's minimum suit bid
denies a good hand. All he needs is good hearts and some non-
finessable outside strength (a finessable honor in one of opener's
suits is worth less in this position).
If East has a singleton or void in hearts with support for the
other suits, he must have a very good hand to double. If West must
bid (as when South passes the double and West can't leave it in),
no suit is going to break evenly.
South West North East
2D Pass 3C Dbl - two-way double
3D Pass Pass Dbl - business
Any suit East-West might bid now would break very badly, so this
second double is not optional.
-- If the opponents have found an immediate fit on the first
round they probably have eight or more trumps (second round
"fits" may be 4-3) so a double is for takeout, a notrump bid
natural:
South West North East
2D Pass 2S Pass
Pass Dbl - takeout
2NT - natural, not unusual
Despite North's probable weakness, the takeout double requires a
very good hand because no suit is going to break evenly. West's 2NT
bid shows 16 HCP or more in a hand that probably lacks support for
one of the other three suits.
After passing a good 4-4-4-1 hand yourself, you can pass and then
double anything:
South West North East
2D Pass 2H Pass
2S Dbl - two-way double
West is either very long or very short in spades. This is a very
bad sequence for the opponents, since South is probably bidding a
four card suit for which North may have no support. It is very
likely that they have no fit and will go down a bundle. Be sure to
lead trumps against a contract in one of opener's suits, to reduce
any cross-ruff potential.
South West North East
2D Pass 2S Pass
2NT Dbl - business
South is short in spades. West probably is sitting over all three
of South's suits, with spade shortness himself. He hopes East has
a spade stack, as is probable.
Reopening doubles of opener's takeout of a sign-off response are
also two-way: either very short or very long in the suit:
South West North East
2D Pass 2H Pass
2S Pass Pass Dbl - two-way double
East could have S-QJ98 H-KJ4 D-A2 C-KQJ3 or S-2 H-KQ83 D-AK32
C-QJ103. West will know which by looking at his own spades. With
a singleton or doubleton spade, he will usually pass and lead
spades. With three or more spades he can pass or bid, as he thinks
best, playing East for a hand of the second type.
When the response to the opening bid shows a good hand (e.g., 2NT
or jump in a suit), it is very unwise to enter the bidding.