Challenge Yourself

Complete a Medium puzzle using only box-based logic — no row or column scanning allowed.

Challenge Yourself
✓ Completed! 👍
3
8
1
8
5
9
6
7
8
4
1
2
1
5
4
9
2
3
7
2
7
3
9
3
8
Sudoku Trivia

Dell Magazines published Sudoku as 'Number Place' for decades with minimal fanfare before Nikoli transformed it into a cultural phenomenon.

Sudoku Trivia