IMPs, lead ♥4, result 4♠-1
East was actually the dealer here, but the software does not allow a COOT. East started to use a stop card, intending to open 2S, but South passed out of turn before East could call. The TD ruled it was a POOT and West decided to accept it and bid 1NT. East showed an invite with 5+ spades, usually six, and West accepted. Even with the king and queen of hearts wasted it was on the spade finesse, but that failed and declarer was one off. The two questions I have are:
a) Is the use of the stop card by East, prior to the pass out of turn, UI or AI to West, a member of the non-offenders, and if UI does she have to carefully avoiding using that UI in order to decide whether to accept the pass out of turn?
b) During the auction, West knows that East must have been intending to open a weak Two Spades, but she also knows that from the authorised auction. What are her LAs, and that depends of course on whether the cancelled stop card is UI?
And board 34 from the LMBA teams, not from a North London club. No SB or Chch present!