Rainbow Lesson #4: Dealing with Interference
Preamble
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First, a word about how we report an auction.
If the opponents are silent, we use colon between the
actual bids, ignoring the opponents' passes. If the
opponents are not silent throughout, we use hyphens
between bids. Hence, 1 :1 :1 means that Opener
began with 1 and rebid 1 over partner's 1 reply.
1 -1 -1 , on the other hand, means that Opener started
with 1 , only to hear LHO overcall 1 and Responder
bid 1 .
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When the opponents interfere over your Partner's
opening bid, they make it more difficult for you to
find a fit in any unbid suit and they use up some of
your valuable bidding space. On the other hand, they
give you some tools which you would not have at your
disposal had they not interfered. For example, they
allow you to Pass with 6-7 points without worrying
about missing game; Partner will get another chance
to bid and will likely compete with 16+ points.
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More importantly, though, the opponents give
you a bid which will always be forcing: a cuebid
of the enemy suit (e.g. 1 -1 -2 ). Also, by using
or not using a negative double, Responder can often
distinguish a 4-card major suit from a 5+ carder.
For example, 1 -1 -Dble suggests only four Hearts.
1 -1 -2 suggests 5+ Hearts. 1 -P-1 , meanwhile,
is much less exact, showing 4+ Hearts.
Pass by Responder
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An overcall relieves Responder of the obligation
to bid with a minimal 6-7 points. But Responder
could also be passing with 8-12 points and 5+ cards
in the enemy suit, hoping partner will "balance"
with a takeout double (which Responder will gladly
pass). The original pass is called a "Trap Pass".
If Opener doubles for takeout, Responder's second
pass will be a "Penalty Pass", since it converts
this takeout double to penalty based on a lot of
trumps and 8-12 points.
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To accomodate the possibility that Responder
may have trap passed, Opener will often strain to
make a takeout double if the overcall is passed
back around to Opener. This is especially true
at MatchPoints, and when Opener's side is not
vulnerable.
After 1 -1 -P-P
Non-Vul Opener may re-enter
this auction with a double, even with a rather
mediocre hand and terrible Heart support. If
Responder bids 1 , Opener can correct to 1 . |
Free Bids by Responder
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After Partner has opened and the next player
has overcalled, Responder may raise Opener one
level with 6-9 points, jumping to the four level
pre-emptively with LOTS of trumps (i.e. five if
raising to 4 or 4 , six or more if raising to
4 or 4 ) and very few points. Note: while most
will raise Opener's suit freely with 6-7 points some
will not.
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A jump shift in a new suit by Responder
(e.g. 1 -1 -2 or 2 ) is weak, revealing a 6+card
suit and fewer than 8 points.
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For the most part, though, any free bid by
Responder will show 8+ points. A single jump in
Opener's suit (e.g. 1 -2 -3 ) by an unpassed Responder
is still a limit raise (10-12 points, support for Opener).
Questions
Question #1: What do
I do over 1D-1S if I have 5 Hearts and only 6 or 7 points?
Question #2: Why do we call bids by Responder "free" bids
immediately after an overcall?
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