[antonylee]

http://worldbridge.o...=5115&qphase=QF

Quick explanation: N/S are cold in 4♥ but to find this North has to enter the auction with a 4315, 16-count (incl. singletong ♦K) after West opens a strong NT. Otherwise, E/W can play and make 2♠.
In the open room, Multon overcalles de Wijs' strong 1♣ with 1NT, intended as M+m (by Multon) but first explained (by Zimmermann) as a strong NT and later instead alerted as m+m, and N/S bid all the way to 6♣-2. Quickly after that the director was called and the Monaco pair (according the Vugraph operator) claimed that they did not see the alert of the 1♣ opening(?!!)... (So I'll sit down at de Wijs-Muller's table in the QF of a big international tournament and not know that they play a strong club?...)

I saw that the results was adjusted to EW+10, or Monaco +3imps, in the open room (the closed room result was EW: 2♠=). Does anyone know the details of the ruling?