1. Plural of gamesmanship; the use of psychological tactics, clever strategies, or dubious methods to gain an advantage in a game or competition while staying within the rules.
Usage: Usually uncountable in singular form; plural form emphasizes multiple instances or types of such tactics

Examples

• The tennis player's various gamesmanships—including time-wasting and intimidation—frustrated her opponent.
• His gamesmanships on the court included trash talk and exaggerated reactions to calls.
• The coach warned the team against using gamesmanships instead of focusing on skill development.
• Different gamesmanships are employed in poker, from bluffing to reading opponents' tells.
• She mastered several gamesmanships to gain a psychological edge in chess tournaments.