Play Tic Tac Toe - Block Puzzle in this logic puzzle game with your friends and family. This brain teaser known also as xo or noughts and crosses is a great way to exercise your mind and to challenge your logic skills. Match 5 in a strategy game board! Learn how to challenge your brain: Tic Tac Toe is a classic puzzle game for 2 players, who take turns marking the free space in a grid. This puzzle game is a modified board game of noughts and crosses brings more challenges. The player who places