gambit vs subterfuge

gambit

noun
  • Any ploy or stratagem. 

  • An opening in chess in which a minor piece or a pawn is sacrificed to gain an advantage. 

  • A remark intended to open a conversation. 

verb
  • To sacrifice (a pawn or minor piece) to gain an advantage. 

subterfuge

noun
  • An indirect or deceptive device or stratagem; a blind. Refers especially to war and diplomatics. 

  • Deception; misrepresentation of the true nature of an activity. 

How often have the words gambit and subterfuge occurred in a corpus of books? (source: Google Ngram Viewer )