Opening lead: 2

When I held the South hand in a world championship, I bid 6.
Dummy wasn't quite enough, the way I played it. I ruffed the
lead and led the king of diamonds to the ace. A diamond was
returned. I discarded a club and won in dummy. I decided to
go after clubs and took the finesse. The queen held and I led
another club to the ace. Now I saw that West was short in
clubs and presumably shorter in hearts than East. So I cashed
the ace of spades and led a spade to the 10, playing West for
the jack-third. My plan was to ruff a club with the queen of
spades next and lead a spade to the king for three minor-suit
tricks, to throw three hearts. But East won the jack of spades.
Down two.

I could have made the hand cross-ruffing, since East held the
jack of spades. That's besides the point. In the auction I could
have given partner a chance to stop in 5 by bidding 5 instead
of blasting to slam.

My tip: Don't play partner for the perfect cards. When you can,
get some feedback from him.