[patroclo]

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[nige1]

Jettison entry coup

[gszes]

I did not know this play had a specific name every time I have seen it in print the author merely called it an unblocking play or get that ace out of your hands like a hot potato.

[Zelandakh]

These types of coup are known collectively as "the jettison play". The normal case does not involve giving up a trick in the suit though, so someone could certainly consider adding a more specific name as Nigel looks to have done.

[msjennifer]

An exit play involving the sacrifice of a trick in order to win two or more tricks later is called a GAMBIT.Thi term is derived from CHESS.Hence in the deals wherein an unblocking play has been made to develop an Endplay later may be called “ a jettison exit gambit ” .The term gambit has been described by the late George S Coffin in his book “Endplays In Bridge “.