Movie #9 : page 4

The full deal:

Did you win the ♥K and return a red card?  No good.  Declarer takes the ♦A-K and the ♥A-Q, leaving this ending:

Dummy's ♥10 is led, south discarding a club, and west is caught in a ruffing squeeze.  Whichever minor she discards, declarer plays that suit next, setting up the game-going trick.

So did you win the ♥K and return a club?  That's no good either!  Declarer wins the ace and cashes two hearts, to this position:

Again, dummy's heart is led as south sheds a club, and west is in the same pickle.  One ruff sets up a trick in the suit of west's discard.

So what is this exercise all about?  Entries!  Duck the heart lead!  If declarer finesses hearts again, then take the king and return a club.  If he plays a heart to the ace and leads a heart, then cover it.  The loss of entries in both hearts and clubs is sufficient to kill the potential squeeze position.  However declarer might play, there is no way that he can come to ten tricks.  Try it!

Note: the contract can be fulfilled unless the defense draws the trumps immediately, preventing two club ruffs.  On a double-dummy basis, west's clubs needed only to be KJ83 or better; otherwise, the clubs could be set up with one ruff by leading from dummy to declarer's ♣8, then later smothering east's ♣10.  Of course, all of this would transpire after you ducked the heart lead.