The game of Tic-Tac-Toe, also known as naughts and crosses or Xs and Os, has been a popular children's game since at least ancient Egypt where examples of game boards have been found as early as 1300 B.C. Given the simplicity of the rules and ease of play, it is reasonable to assume that this is one of the earliest "board games" invented. This book includes every possible move in a game of Tic-Tac-Toe starting with the "X" player, as is traditional. There are nine sections (as only nine total moves are possible in each game) alternating between X and O. Within each section, every unique board configuration is presented on a page. Only unique board configurations are included.