Classic slider puzzle game of eight square tiles in a three by three box. The sort of puzzle game you used to find in a Christmas cracker. At the beginning of the game the tiles are shuffled and you must arrange them back in the right order with tiles 1,2,3 on the top row, 4,5,6 on the second row and 7 and 8 on the bottom row with the blank space in the bottom right hand corner.