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About game
15Numbers: Challenge & Fifteen is a classic puzzle game invented in 1878 that is still relevant today. 15Numbers: Challenge & Fifteen features a set of square dominoes with numbers printed on them, housed in a box.
How to play
The goal of the game is to move the dominoes to arrange them by number from left to right and top to bottom, using one empty space for this.
At the beginning of the game, all numbers are scattered in random order. By clicking on a cell, you move it to an empty cell. Continue moving the cells until they are all in the correct order. Good game!