level: simple
52...6.........7.13...........4..8..6......5...........418.........3..2...87..... | initial |
527316489896542731314987562172453896689271354453698217941825673765134928238769145 | solved |
level: simple
Top 95 Sudokus 002 [sudoku:top95] “95 Hard Puzzles”, http://magictour.free.fr/top95, or http://norvig.com/top95.txt