level: simple
.2.......3.5.62..9.68...3...5..........64.8.2..47..9....3.....1.....6...17.43.... | initial |
427593186315862479968174325659328714731649852284751963593287641842916537176435298 | solved |
level: simple
Top 95 Sudokus 033 [sudoku:top95] “95 Hard Puzzles”, http://magictour.free.fr/top95, or http://norvig.com/top95.txt