arbor8 Kwon-Tom Obsessive Puzzles: 5584 Best Total: 13m 24s | Posted - 2013.06.07 03:13:08 Same tools apply also in the bigger puzzles. Yuo just get less help from the corners and sides.After initial easy patterns try: - get support from "0"s and sides and corners - try using defined areas where you can use : number of incoming lines must be even |