- Tiles slide using the arrow keys. If you use the mouse, hold down the mouse button on the screen and move the mouse cursor(up, down, right and left).
- When tiles with the same number collide, they are combined into one tile with the number increased by 1.
- The game is won when a tile with the number 7 appears on the board.
- When any tile can not move, the game is over.
- You may use also the numeric keys (2, 4, 6, 8) or WASD keys besides the arrow keys.
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