PlaySudoku.us
Medium · Puzzle #30
4
6
2
9
3
6
8
7
2
4
7
1
8
1
4
5
7
3
3
4
8
2
6
7
6
5
2
7
9
3
3
5
1
9
6
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.