level: simple
......52..8.4......3...9...5.1...6..2..7........3.....6...1..........7.4.......3. | initial |
416837529982465371735129468571298643293746185864351297647913852359682714128574936 | solved |
level: simple
Top 95 Sudokus 006 [sudoku:top95] “95 Hard Puzzles”, http://magictour.free.fr/top95, or http://norvig.com/top95.txt