PlaySudoku.us
Hard · Puzzle #232
5
9
6
5
4
1
5
8
9
4
6
8
1
3
2
8
6
9
4
1
5
8
3
2
7
8
"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.