Suppose actors A and B compete for some prize (market share; winning an election; access to an ideal mate; etc). Actor A makes a move that gets them closer to the prize; in response, Actor B will craft a response/counter-move. I am looking for anecdotes and examples of counter-moves that are different in kind/character from the initial moves of actor A and therefore take by surprise actor A.

Think Pepsi Cola versus Coca Cola or Clinton versus Trump or Russia versus Ukraine or whatever other competitive situations ranging from sports, to business, to military affairs, to elections, to mating, etc. 

The actors don't need to be famous/well-known. The important thing is for the counter-move to be really striking / juicy / jaw-dropping (worthy of story telling). 

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