PlaySudoku.us
Medium · Puzzle #111
3
5
1
2
6
8
4
8
1
7
2
1
7
6
4
4
2
8
5
3
1
6
2
7
1
9
8
2
1
7
1
8
4
3
5
Use pencil marks to track candidates. Eliminating one candidate often triggers a chain reaction.
Use pencil marks to track candidates. Eliminating one candidate often triggers a chain reaction.
Use pencil marks to track candidates. Eliminating one candidate often triggers a chain reaction.
Use pencil marks to track candidates. Eliminating one candidate often triggers a chain reaction.