Page "Simultaneous double squeeze" Paragraph 2

1 ) In the first matrix, the double menace ( spades ) is in one hand ( dummy in the example ), accompanied by an entry, and the other two are split between two declarer's hands.

When the club deuce is played West has to shed a spade, dummy sheds the now useless king of hearts and East is squeezed in the pointed suits.

This is a positional squeeze ( it would not work with E-W hands reversed ).