The grid is made up of rectangles of differing sizes.nYou can't see these rectangles when the puzzle nis shown. Instead you see a number within each nrectangle indicating how many cells are contained nin the rectangle.nnTo begin solving the puzzle you should first look fornrectangles that only have one possible position. nYou fill these in by dragging your finger across the nboard to make a rectangle. When dragging, the nselected cells change to a color and the rectangle nsize is displayed in the centre of the rectangle you nhave created. You need to keep dragging until thisnnumber is the same as the number containednwithin the rectangle.