Gerben42, on 2011-January-23, 13:50, said:
2
♥ as per system showed a weak raise (0 - 5) with 3-card support but was not alerted. After the opening lead, North called the director because he because he assumed it was a constructive raise (6 - 10) and might have bid differently if he had known the correct meaning. You let them play the board, hear that the result was down 4, NS 800.
North states that he would have made a forcing bid with the correct explanation rather than the more preemptive 4
♠, but now he thought slam would be too remote.
How do you rule?
Does the German alert regulation require alert in this situation?
I ask primarily because my own general rule when I raise partners opening bid after an intervening double is to bid one step higher (for the preemptive effect) than I would have bid without the double, and it has never occurred to me that an alert is required here.
So I looked up the applicable Norwegian alert regulation and found:
Alert is required for any call that is
forcing following RHO's double of partner's opening bid.
In Norway North will have received correct information. As I am going to play at an event in Germany this summer I am anxiouos to know if the German alert regulation differs from the Norwegian on this point?