Neither side vulnerable.  
East deals.
                              North
                              S: Q 4 3            
                              H: 9           
                              D: 9 8 7       
                              C: A Q 9 8 7 3
            West                             East
            S: J 5 2                         S: 10 9 8 7     
            H: J 7 4 3                       H: A K 10 8 2 
            D: 10 5 4 2                      D: K J 3             
            C: J 4                           C: K           
                              South                         
                              S: A K 6
                              H: Q 6 5      
                              D: A Q 6     
                              C: 10 6 5 2 
          The Bidding:  
                   East   South     West   North
                    1H     1NT      Pass    3NT  
                   Pass    Pass     Pass
          Opening lead: HJ
     Mort Pierce of Chagrin Falls played this hand on a Saturday
afternoon duplicate game.  Pierce is 87 now, but that has not
affected his bridge ability.
     The auction was simple.  Pierce made a one no trump overcall
and I raised to game on the strength of my club suit.  We were
having a mediocre game and I was hoping to steal a good result.
     East let the jack of hearts run around to declarer who won
the queen.  He played a small club to trick two and when West
played the four, Pierce decided that if the king was not
singleton he was going down so he might as well play for the
drop.  The king fell and he ran six club tricks.  He played three
rounds of spades ending in the dummy and took the diamond
finesse.  When that worked and the king fell under the ace, the
six of diamonds become the thirteenth trick.  Plus 520 was a top
board.
     The lesson, of course, is to recognize when a specific
situation must exist for you to be successful and then to play
for that holding instead of just giving up.