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WEAK2BID.WKA
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1995-08-30
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WEAK TWO BIDS
A weak two bid opening implies a hand that has a good six-card
suit, but not enough in high cards to definitely call for an
opening bid. Vulnerable vs non-vulnerable, weak two bids are often
hands that might be opened with one of a suit if not playing weak
two bids. Also, with unfavorable vulnerability a seven-card suit
is permissible. It is difficult to have enough tricks for a weak
two bid with this vulnerability and yet lack opening bid strength.
Requirements
-- 6-12 HCP, varying with seat position and vulnerability
-- Weakest suit K109xxx, usually better
-- Most of the strength in the suit opened
-- No side suit of four or more cards
Flaws:
-- Five-card suit (only in third or fourth position, please)
-- Singleton or void in a minor, or major suit void
-- Support for a side major
-- Only one of the top three honors in the suit opened
Do not open a badly flawed hand.
Not vulnerable, the hand should have 1-1/2 to 2+ defensive tricks,
vulnerable 1-1/2 to 2-1/2.
Playing trick strength requirements vary with vulnerability:
Favorable 5 to 6 playing tricks
Nobody vul. 5-1/2 to 6-1/2
Both vul. 6 to 7
Unfavorable 6-1/2 to 7-1/2
With a suit like AKQ10xx or KQJ10xx, six playing tricks are enough
with unfavorable vulnerability.
These requirements may be relaxed somewhat in third or fourth seat.
The Ogust Convention
This convention consists of an artificial forcing response of 2NT.
Opener rebids as follows:
3C with a poor hand, poor suit
3D with a poor hand, good suit
3H with a good hand, poor suit
3S with a good hand, good suit
3NT with a suit headed by AKQ
A passed hand may use Ogust. A "good suit" is one good enough to
play in game opposite a singleton without yielding (probably) more
than two trump losers. This means the suit should be as good as
QJ108xx, KJ108xx, KQ10xxx, AQ10xxx, etc., not vulnerable, even
better when vulnerable (when suits should always be at least this
good). What constitutes a "poor hand" or a "good hand" also varies
with vulnerability.
Ogust applies over an intervening takeout double or two-level
overcall:
South West North
2H Dbl/2S 2NT - Ogust
Other Responses
-- Simple suit takeouts of a weak two bid are forcing, even over
a double, unless responder is a passed hand. To invite with a new
suit bid, use Ogust first:
Opener Responder
2H 2NT
3C 3D
The 3D bid is invitational, not forcing. If responder wanted to
force, she could have responded 3D to the 2H opening. With his poor
hand/poor suit, opener will no doubt pass 3D, but could raise with
good diamond support and perhaps a side singleton.
Opener "raises" responder's immediate (forcing) new suit response
by bidding notrump--he must never make a real raise at the four
level, because responder may be psyching or just trying to find out
if opener has a little something in the suit in order to make
notrump a reasonably safe contract. Responder might have only Jxx
in the suit, for instance, which is okay for notrump if opener has
Qx, xxx, or better in the suit. The use of notrump to "raise" must
be alerted, as must the new suit response ("That is an asking bid,
not a telling bid").
If the notrump "raise" is available at the two level, then opener
is allowed to make a real raise to three with good support, and the
2NT bid implies a poor raise:
Opener Responder
2H 2S
2NT - poor spade raise
3S - good spade raise
The artificial raise applies in competition, and may be given
freely even with a minimum weak two bid.
South West North East
2H Pass 2S 3C
3S - spade support, may be minimum
3NT - spade support, club stopper
Dbl - good clubs
-- A 3NT response to a weak notrump opening must be passed, as must
a 3NT rebid by a responder who has used Ogust. To give opener a
choice between 3NT and game in his suit, responder first bids a
new suit, then bids 3NT:
Opener Responder
2H 3D
3H 3NT - offers a choice