Click and play! Quadrillion offers countless challenges and thousands of solutions... but can you find even one? Play Quadrillion by simply clicking the 4 magnetic grids together in any order to create your personal game board. The object of the game is to fit the 12 colored puzzle pieces on the game board you've just created. All possible board configurations can be solved, sometimes with thousands of variations, so you will never run out of challenges. The big, sturdy puzzle pieces are perfect for players of all ages. Starter booklet included... but not needed to play the game.