Both sides vulnerable.  
South deals.
                              North
                              S: Void             
                              H: K J 9 2     
                              D: K J 4 3     
                              C: Q J 10 8 7
            West                             East
            S: J 2                           S: 9 8 7 5 4    
            H: A 10 4                        H: 7 5        
            D: 10 8 7 6                      D: Q 9               
            C: A K 9 6                       C: 5 4 3 2     
                              South                         
                              S: A K Q 10 6 3
                              H: Q 8 6 3    
                              D: A 5 2   
                              C: Void     
          The Bidding:  
                  South    West    North    East                  
                   1S      Pass     2C      Pass
                   2H      Pass     4H     All Pass
          Opening lead: CA
     Duplicate bridge is a game of errors.  The essence of the
game is to reduce your errors and recognize when the opponents
have make a mistake and not let them get away with it.  This hand
is a fine example.
     Playing in four hearts, West leads the ace of clubs which is
ruffed with the three of hearts.  Declarer plays the ace and king
of spades, discarding small diamonds from the dummy.  When West
plays the jack of spades at his second opportunity to play
spades, declarer stops leading spades and puts the six of hearts
on the table.
     West plays a small heart and the king in dummy holds this
trick.  The two of hearts comes back to the queen and the ace. At
this point, the best play that West could make would be to play
his last heart, but he got out with a diamond.  Here is the end
position:
                              North
                              S:              
                              H: J 9      
                              D: K J      
                              C: Q J 10 8 
            West                             East
            S:                               S: 9 8 7     
            H: 10                            H:          
            D: 10 8 7 6                      D: Q 9               
            C: K 9 6                         C: 5 4 3      
                              South                         
                              S: Q 10 6 3
                              H: 8      
                              D: A 5 2   
                              C: Void     
     Declarer must take advantage of this error.  He wins the king 
in the dummy and trumps a club with his last heart.  A small spade 
is led. West discards a diamond and a small heart is called for from 
dummy. The jack of hearts pulls the last outstanding trump while 
declarer discards a small diamond.  Now, a diamond to the ace is the 
entry for all of the remaining spades.  Making six is a tie for top 
on this hand.
     Often, when the opponents land in their third suit it is right 
to lead a trump.  Usually, this defensive approach can reduce the 
number of ruffs available for declarer.  
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