bensam

The CDH ( Club-Diamond-Heart) convention allows the responder of a 2 Club opening bid to inform partner that despite a bust hand responder has a void and ,thus, at least one 5 long cards suit. If a FIT is found a slam is possible despite the bust hand ! When the CDH convention is used 2 Diamond Waiting is replaced by 2 Spades Waiting ( must be alerted ). The 2 Heart bid indicating a busted hand without a void remains the same. Example: North opens 2 Club © South response is 2 Diamonds (D). That bid must be alerted by North indicating a bust hand with one or two voids. North bids artificial 2(H) to be alerted by South as ''Waiting artificial''. South then informs North of is void by a transfer ( must be alerted as transfer). North completes the transfer South then bids is void suit. North thereafter has enough information to conclude the bidding. With a FIT in South's long suit a slam should be considered. Asking for control is not needed since North already knows that South has a bust hand. Author of the CDH convention : Ben Samson