Double Dummy Corner

 

Competition Problem 107a

composed by Ian Budden
presented for solving in January, 2014

DR5

♠ K43

 Kx5

 Q6

♣ 76543

♠ A98765

 9

 J10

♣ J1098

♠ QJ10

 Qx76

 K987

♣ KQ

♠ 2

 A8432

 A5432

♣ A2

The contract is four hearts by South. West leads the J.

The cards marked x are the J and 10.  
Which of the following statements is true?

A. The contract succeeds regardless of the position of the J and 10.
B. The contract fails regardless of the position of the J and 10.
C. The contract succeeds only if North holds the 10.
D. The contract succeeds only if North holds the J.

Show how the contract succeeds or fails in each case.

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