This two-game set includes Edward de Bono's L-Game and 3-Spot. Both are games of pure skill, designed to improve thinking skills. They can be as challenging as chess, yet as easy as playing tic-tac-toe and can be learned in minutes. In L-Game the objective is to move your L-shaped piece and one of 2 neutral pieces to block the other player's pieces. There are 16 (4x4) squares on the board with 18,368 possible moves. In 3-Spot the objective is to move your piece and the neutral piece to cover the spots on a nine (3x3) square board. The unique feature is: a player can, at any time, change strategies from an offensive tactic to a defensive one, or vise versa, and WIN!