The article presents a mathematical game theory which is a simplified version of Marienbad game. This version of the game is played only with two heaps of matchsticks and under slightly modified rules. The winning strategy for this game is based on multiplication by certain “magical” irrational number and not on binary sums like “classical” Marienbad winning strategy.
 Tomsa, J.: Nehrajte si se sirkami I. Rozhledy matematicko-fyzikální, 92 (2017), 1, 1–9.
 Wikipedia: Wythoff's Game.