PlaySudoku.us
Hard · Puzzle #259
2
1
6
4
1
8
4
5
5
8
7
3
7
5
1
9
4
2
1
8
3
2
8
5
1
6
7
Try to solve today's puzzle without erasing any pencil marks — plan every elimination before committing.
Try to solve today's puzzle without erasing any pencil marks — plan every elimination before committing.
"Mathematics is the art of giving the same name to different things." — Henri Poincaré
"Mathematics is the art of giving the same name to different things." — Henri Poincaré