... on the board, and a person who solves the puzzle should, by the replacement of pairs of selected tiles reach the original image.Puzzle that can be solved in this way was named 'Jigsaw Puzzle'. The order of randomly placed tiles on the board can be changed by hiding one tile and getting a free field on the board. Then solve the puzzle by sliding the tiles on the board, using the free field and bringing the tiles to the desired position on the board, this would be 'Slider Puzzle'.