It is impossible for Hex to end in a tie. Every filled board has a winning path for one player, and completing a path makes it impossible for the opponent to also complete a path. Hex is an ultra-weakly solved game: a winning strategy exists for the first player, but for arbitrary board sizes this strategy is unknown. Humans typically play on large boards (10x10 to 19x19), and recent research has solved every opening move of the game on boards up to 8x8.