Your task is to move a tile to the top row (five rows up from where the top row of tiles started). Dark squares are tiles and light squares are empty cells.
You move a tile by selecting it (it turns red) and then jumping over another tile by clicking on an empty cell two spaces away.
You can't move diagonally. When you move a tile, the one that you jumped over is removed.
To de-select the red tile, click on it again.
Don't spend too long trying to reach that top row!