MrAce, on 2011-December-22, 00:53, said:
IMP, 2/1 system.
2
♦ : 4+ GF
What would you bid now with a pick up expert pd ?
There are 2 things required for a grand slam search
1. The player searching for 7 must be sure they they want
to play in at least 6.
2. If a trump suit is involved (vast majority of the time)
the trump suit must be set OR if not set for certain the
other plausible trump suit must be above the current one.
If condition 2 exists the parnership needs to agree that all
grand slam searches that begin at the 5 level or higher assume
the current trump suit will be in force until at least the 6 level.
within the constraints shown above the only way for south
to search for a grand is if they have 2 first round and 2nd round
of the other suit controlled (as well as having pretty good trumps
headed by the A at least) at a minimum.
This hand qualifies with 1 since we all agree that reaching 6d is
reasonable. Unfortunately since hearts is still a plausible suit
we must decide to play 5h as a natural conversion (an idea that
makes little sense at imps but could be a mp consideration) or we
can agree to not allow hearts to become the trump suit until the
6 level. I am going to assume the latter.
With no control information exchanged S can only search for a grand
with "pretty good trumps including the A" 2 first round controls and
the "other" suit 2nd round controlled at least. This means we are
looking for either a first round control or a second round control
since we have only one level to search. If we need more forget looking
for 7 not enough space (good advice in all cue bidding efforts).
We do not use 5n as GSF it is saved for the lowest level suit we cannot
bid naturally in order. That means that here with dia agreed we would
bid 5h to ask about hearts 5s to ask about spades and 5n to ask about
clubs. If the trump suit was spades --5n asks about hearts 6c about
clubs and 6d about dia etc.
P goes to 6 level of agreed trump suit with no control. Else p step
bids 1st step 2nd round 2nd step void 3rd step A (p bypasses 6 of the
agreed trump suit if necessary for these steps)
This hand bidding goes (after 5d)
5n asking about club control
6c = 2nd round control
6d = no control
6h = void
6s = ace
If we cant place the contract after this we probably should not be looking
for 7.
These situations crop up a lot and being able to ask about where help is needed
is a ton more useful than trying to just cuebid in general.