Create combinations of four or more gems to earn special pieces. If you get four gems in a row, it creates a bomb that will destroy a 3�3 area of gems. Create an "L", "T" or "plus" shape using five gems to make a piece that will destroy one row and/or column. Get five gems in a row to create a piece, that when matched with a color, will remove every piece of that same color within about ten tiles of either side.