This single player, magnetic puzzle game comes with 48 Challenges. Place the 2 puzzle pieces without penguins on the grid as indicated in the selected challenge. Now Place the puzzle pieces with penguins on the game board so that the 4 penguins end up in a horizontal, vertical or diagonal line, with no spaces in between! There is only 1 possible solution for each challenge, found in the included booklet. This light weight brainteaser takes up very little space making it ideal for travel!