Posted 2012-June-27, 15:30
Default bid for North is to raise due Law to 3♣.
After likely simulation it decided not to bid it at the moment.
East simulated too not to pass but to bid, 2♦ ( promising 6+ ) is not that bad as with promised 6+♥, the level might become not so competive with lousy hand.
Anyway, Double from each E and W is penalty, not t/o so E can't use the double here as E already declined the chance to have penalty length in clubs.
So both North and East simulated a bit, and North simulated twice , second time pass is likely after devaluate the ♦Kx as it would be in dummy's.