Did You Know?

Sudoku has no math — you could replace the digits 1–9 with any 9 symbols and the puzzle works identically.

Did You Know?
✓ Completed! 👍
4
9
1
6
9
7
8
1
3
5
3
7
1
1
2
8
3
6
2
6
9
4
8
7
Scientific Mind

"In science, there are no shortcuts to truth." — Karl Popper

Scientific Mind