In bridge, is there a way to determine when and where to "transfer control" to defeat a squeeze?
Sufficiently advanced partnerships will have good enough signaling that you should be able to narrow down which stopper partner might have. For example:


Partner may give suit preference signals throughout the hand, as described in "A Switch In Time" by the Granovetters, so you should know whether partner has the missing Q.
Partner may give count throughout, so you should know whether partner has 3 clubs (and therefore may hold Jxx), if this is in doubt.
Partner may give attitude discards while declarer is playing down the squeeze suit; giving negative attitude for diamonds would eliminate the possibility they have the Q.