North-South vulnerable.  
South deals.
                              North
                              S: A 4 3            
                              H: Void        
                              D: K 10 8 6    
                              C: A 10 8 7 5 2
            West                             East
            S: Q 9 8 7 2                     S: 10           
            H: A 3                           H: K J 10 8 7 6 2
            D: J 7 5 4                       D: Q 2               
            C: J 6                           C: Q 4 3       
                              South                         
                              S: K J 6 5
                              H: Q 9 5 4    
                              D: A 9 3     
                              C: K 9      
          The Bidding:  
                  South    West    North    East                  
                   1D      Pass     2C       2H 
                   2NT     Pass     3D      Pass
                   3NT     Pass     Pass    Pass
          Opening lead: HA
     When this hand was played at a local duplicate game, the
declarer went down three for a very bad score.  Can you find the
winning line of play?
     West leads the ace of hearts and then the three of hearts. 
East wins the king and continues with the jack.  South wins the
queen while West discards the two of spades.  Declarer must bring
home the club suit in order to make the contract.  While doing
this, East is the danger hand that must be kept off lead.  
     Declarer should lead a spade to the dummy and lead a small
club.  When East follows low, insert the nine.  West wins but has
no hearts.  West gets off lead with a small diamond.  The dummy
plays low and East's queen is captured with the ace.  The king of
clubs is cashed and a diamond is led to the king.  The ace of
clubs clears the suit and declarer is able to score two spades, a
heart, two diamonds, and five clubs for a total of ten tricks.
     This play is known as an "avoidance" play.  Declarer,
missing five clubs including the queen and jack can only score
six club tricks if he finds the two honors together in the same
hand, doubleton.  That is an unlikely holding.  If a club must be
lost, try to find a play that keeps the danger hand, East, off
lead.   
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