18 juillet 20193 août 2020 Patrick Meyer In the context of combinatorial game theory, what does an arena refer to? An enclosed area that is often circular in shape. A graph in which each vertex summarizes a possible state of the game, and edges describe how to evolve from one state to another. A graph in which each vertex is a player. The online version of Magic the Gathering. What is a strategy? A function that associates a vertex in the arena with a decision for a given player. A rooted tree. A function that computes an approximate solution to the TSP. Time is Up!