From Longman Dictionary of Contemporary Englishgamesmanshipgames‧man‧ship /ˈɡeɪmzmənʃɪp/ noun [uncountable] COMPETE WITH/TRY TO BEATthe ability to succeed by using the rules of a game or activity to your own advantage
Examples from the Corpus
gamesmanship• Not all my encounters with the world of academic gamesmanship were so chilly.• That kind of gamesmanship happens often during postseason, one team trying to rattle another in an effort to get an edge.• political gamesmanship• And why indeed should gamesmanship not exist in disabled sport when it is rife everywhere else? 