[blml] When AI confirms UI, are we completely free to act?

[Herman De Wael]

Yesterday, the bidding started:
part          me
1Cl   pass   1Sp   pass
1NT   pass   2Cl

This was of course check-back, or Roudinesco as we call it.
It was partner who had said at the start of the tournament that we 
would play Roudi, so I was quite surprised to see no alert. This was 
quickly confirmed by the bidding:

part          me
1Cl   pass   1Sp   pass
1NT   pass   2Cl   pass
pass

RHO then prevented the problem from becoming non-existant by keeping 
the bidding open:

part          me
1Cl   pass   1Sp   pass
1NT   pass   2Cl   pass
pass  2Di

My first action was simple, but my problems were not over yet:

part          me
1Cl   pass   1Sp   pass
1NT   pass   2Cl   pass
pass  2Di    pass  pass
3Cl   pass

I held 5 spades, 4 hearts and 10 points (2-2 in the minors), and I 
knew (by UI and AI) that partner believed I had club support, so his 
clubs were not such that 3Cl would be easy.  Was I allowed to bid 3He?

Consider this: suppose partner had duly alerted 2Cl, and then passed 
it and bid 3Cl. Could I not imagine some 6-card suit with singleton 
spade? The AI makes it likely that partner forgot, but the UI makes it 
certain!

Just to end the story: clubs were 3-3, so 3Cl made, which scored 
average because many pairs were in 4He (he had 4 hearts), mostly going 
down.

-- 
Herman DE WAEL
Antwerpen Belgium
http://www.hdw.be