Octal game

The Octal Game is a mathematical game that typically involves two players taking turns to remove objects from a pile. Each player can remove a specific number of objects (usually between one and a maximum number determined by the game rules) on their turn. The objective is to force the opponent into a position where they can only make losing moves. While there are various interpretations and variations of this game, it generally emphasizes strategic thinking and can be analyzed using concepts from combinatorial game theory.