The term gamesmanship came from Stephen Potter's book "Gamesmanship: The Art of Winning Games Without Actually Cheating" originally published in 1947. A newly updated version titled "The Theory And Practice Of Gamesmanship Or The Art Of Winning Games Without Actually Cheating" was just released.
Here's one of the classic examples of gamesmanship from the U.S. Open in 1971 when Lee Trevino pulled a rubber snake out of his bag and flung it at the feet of Jack Nicklaus.
Gamesmanship is well known within the sports arena, but I want to hear examples from you of gamesmanship being played in business situations. Please leave comments sharing examples you know about where gamesmanship was applied in the business world.