[case_no_6]

Pulling out 5NT is probably not the best move in a new partnership.

However, with that said, what to do?

I would think that 5NT could have two reasonable meanings in the absence of discussion:

1. I am not sure whether to accept. You decide, partner.

2. I am accepting, but I have real clubs and 3 card diamond support. Pick a slam - 6C, 6D, or 6NT.

I personally don't think the first meaning is particularly useful on a frequency basis. But the second meaning is intelligent and will occur frequently. It is the one I would presume and, if I am wrong, I have learned that the potential for this new partnership to flourish does not seem too bright.

[Fluffy]

case_no_6, on 2015-September-25, 11:14, said:

Pulling out 5NT is probably not the best move in a new partnership.

Not really, good looking 18 would be happy to play any of 5NT, 6m or 6NT. You don't try undiscussed biddings without a back up plan. But 5NT was solid.

[jodepp]

Isn't this just an adaptation of the principle that bidding a new suit after a quantitative acceptance says 'let's look for a fit before committing to notrump"?

5NT would appear to be an acceptance of the try (those who suggest that it asks for a 'max invite' are trying too hard IMO). The 5NT bidder sounds like he has a prime hand that has a ruffing value in a major and is simply checking back for club support or maybe a 4-4 major fit.

Additional caveat: The 5NT bidder probably doesn't have four diamonds - he would take the pressure off by bidding 6D after 4NT. 6D by the 4NT asker therefore implies having a fifth diamond. A possible 5=3 diamond fit could yield an extra trick if the 5NT bidder has a major-suit doubleton.

[zillahandp]

Means lessons needed esp the 5nt bidder usng half points?

[alok c]

Choose between 6d/6nt.

[alok c]

Double post.