Challenge Yourself

Try to solve today's puzzle without erasing any pencil marks — plan every elimination before committing.

Challenge Yourself
✓ Completed! 👍
6
4
4
5
6
2
3
5
9
4
8
1
3
9
5
6
7
4
3
9
9
1
7
6
Scientific Mind

"I am not discouraged, because every wrong attempt discarded is another step forward." — Thomas Edison

Scientific Mind