2048 Match and Merge Numbers

2048 is a single-player sliding tile puzzle. It is played on a plain 4×4 grid, with numbered tiles that slide when a player moves them by swiping left, right, up or down.
The aim of the game is to merge tiles with same values and form the tile with a value as high as possible.
The game begins with two tiles already in the grid, having a value of either 2 or 4, and another such tile appears in a random empty space after each turn. Tiles slide as far as possible in the chosen direction until they are stopped by either another tile or the edge of the grid. If two tiles of the same number collide while moving, they will merge into a tile with the total value of the two tiles that collided. The resulting tile cannot merge with another tile again in the same move.