PlaySudoku.us
Medium · Puzzle #579
8
4
9
8
5
6
1
7
7
4
3
2
5
4
2
8
6
5
5
1
4
3
8
1
9
5
8
5
6
9
5
9
8
3
7
1
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.
"It's not whether you get knocked down, it's whether you get up." — Vince Lombardi
"It's not whether you get knocked down, it's whether you get up." — Vince Lombardi