kista

Pass here is only similar to a negative double treatment. Partner will know to balance with a double or bid, if 2N is passed by West (disclosing a misfit). NS can now get ready to collect the penalty.

[hv=pc=n&s=s953h9842daq9caq3&w=st862ht763d8cj864&n=skqj74hkq5d7542c5&e=sahajdkjt63ckt972&d=n&v=0&b=1&a=1s2nd3cppdp3dp3nppdppp]399|300|Both Vulnerable Dealer North -2N X & then X = Cooperative penalty[/hv] Pass followed by X by South would have been Penalty. Declarer ducked the ♣K from East and won the ♣continuation by East , ran the ♠9 to East's ♠A , won the ♣continuation , ran the ♠suit. East was strip squeezed and was reduced to ♥A♦KJ ♣109 and so declarer was home with the last 3 ♦tricks. for a score of +650 to NS. NS managed the bidding & play smartly. Could EW have done something to reach their par of 4♣X ? by way of better partnership agreement, reasoning or judgement. One way is to play the 3N X by E is to ask partner to decide to defend or bid since East can pass 3NT when he knows defending is best for their side. Could the auction & actions be different for other vulnerabilities ?