Double Dummy Corner

 

Competition Problem 96b

composed by Leslie Cass
presented for solving in February, 2013

DR4

♠ 32

 AKJ987

 543

♣ AK

 

 

 

 

 

 

 

 

♠ A10654

 2

 AKQJ102

♣ 2

North opens one heart, East overcalls one spade, the auction ending in six diamonds by South.  
West leads the 7, an obvious singleton.  Assume that nobody is void in hearts.                          

(a) What distribution or distributions for East might cause a skilful declarer to fail in six diamonds?
(b) How would such a declarer guarantee the contract against any other distributions?                    

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