Pro Tip

Always update pencil marks immediately after placing a digit — stale marks cause almost all solving errors.

Pro Tip
✓ Completed! 👍
8
5
9
6
2
3
7
7
6
8
3
9
3
1
5
4
6
8
2
3
9
3
8
2
6
4
3
7
5
6
1
4
8
5
9
9
7
2
1
8
3
9
2
Food for Thought

"Associate yourself with people who are likely to improve you." — Seneca

Food for Thought