It starts as an innocent game—just a few matchsticks and a curious challenger. You play, you win, and your opponent is left scratching their head. Then, in a moment of generosity, you reveal the two secret rules that unlock the game. Confident they’ve mastered it, your opponent challenges you to one final showdown. This is when you deliver the final twist... Ready to master the game, leave your opponents outmatched, and always come out on top? Discover the secret of NIM. The Secret of Nim is the definitive guide to the classic matchstick hustle.