PlaySudoku.us
Hard · Puzzle #715
9
2
1
1
6
5
7
4
7
4
9
5
8
6
3
1
4
9
4
5
2
3
9
8
7
6
"If quantum mechanics hasn't profoundly shocked you, you haven't understood it yet." — Niels Bohr
"If quantum mechanics hasn't profoundly shocked you, you haven't understood it yet." — Niels Bohr
Before using pencil marks, see how far you can get with pure logic and mental candidate tracking.
Before using pencil marks, see how far you can get with pure logic and mental candidate tracking.