A Basic Squeeze
A 10
Q J 9 5 3
Q 10 8 7 2
2
7 3 2
K 7 6 4 2
3
10 7 6 4
Q 9 5 4
A 10
J 9 6 5
8 5 3
K J 8 6
8
A K 4
A K Q J 9
Clearly,
6 NT is off the top two hearts. A
6 ♦ contract loses a heart and a diamond if the defense forces South to ruff a heart
at trick two.
But
6 ♣ makes. For example, if the defense forces South to
ruff in hearts on the second trick, declarer can simply draw trumps, which squeezes East:
East, to play to the fourth round of trumps, has to keep four
spades and four diamonds, an impossibility.