Sudoku hard online

Looking to play hard sudoku free, so here it is!

You can play online sudoku hard, save your game in progress or print the game puzzle.

A lot of options available to you as zoom, automatic backup, undo last move...

A sudoku hard is a puzzle which can be solved with more sophisticated methods.

For more difficult sudoku there are the expert level and evil level!

Zoom :
42
1785
536
364
27
983
483
2594
82

 1sudoku.com   -   n° 313929   -   Hard

Game Mode :
Option :
Change the level :