PlaySudoku.us
Hard · Puzzle #348
6
2
4
7
5
3
8
2
8
1
2
4
4
2
9
1
5
1
7
6
6
2
1
9
5
9
8
3
6
7
"Mathematicians do not study objects, but relations between objects." — Henri Poincaré
"Mathematicians do not study objects, but relations between objects." — Henri Poincaré
Start with Naked Singles — cells where only one digit can possibly go. They're the easiest wins.
Start with Naked Singles — cells where only one digit can possibly go. They're the easiest wins.