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zwischenzug

British  
/ ˈzvɪʃənzuːɡ /

noun

  1. chess a tactical move interpolated into an exchange or series of exchanges to improve the outcome

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of zwischenzug

C20: German: in-between move