PlaySudoku.us
Medium · Puzzle #807
8
3
7
5
1
6
4
9
2
1
5
2
3
1
4
5
8
6
5
4
9
9
6
1
5
3
4
3
6
2
7
1
"An expert is someone who has made all the mistakes which can be made in a very narrow field." — Niels Bohr
"An expert is someone who has made all the mistakes which can be made in a very narrow field." — Niels Bohr
Look for digits that already appear 7 or 8 times on the board — they're the easiest to place last.
Look for digits that already appear 7 or 8 times on the board — they're the easiest to place last.