countermove

counter- +‎ move

countermove (plural countermoves)

1. A move in opposition or response to a preceding move.

   move and countermove

   • 1997, Walter J. Ciszek, With God in Russia‎, →ISBN, page 157:

     When you're ready, just call out the position of the pieces and I'll give you a countermove.

countermove (third-person singular simple present countermoves, present participle countermoving, simple past and past participle countermoved)

1. To move in opposition or in retaliation.