exam02, on 2011-June-16, 20:07, said:
what is your bid if
(1)3S was preeptive?
(2)3S was invitational raise?
Also, would the defensive value of North differ in case (1) and (2)?
First of all, this doesn't change much in my eyes. The values may be distributed somewhat differently between East and West, but South doesn't really have very positional values. Oh, uh, defensive value of North? Don't know about that.
Anyway, about the bid at hand, I can imagine several hands for partner where we lose one spade and 2 diamonds, or a spade, a heart and a diamond, in 5
♥. On the other hand, I'm not convinced 4
♠ is making. So I'll pass, though this will be wrong some of the time.
(As a rather non-B/I aside, this seems like a good advertisement for R-S methods where 4
♦ would have been a FNJ.)
"One of the painful things about our time is that those who feel certainty are stupid, and those with any imagination and understanding are filled with doubt and indecision"
-- Bertrand Russell