PlaySudoku.us
Medium · Puzzle #49
6
9
2
8
4
5
9
2
7
3
6
5
9
2
3
9
3
4
9
7
1
2
7
5
8
4
6
5
2
3
9
7
1
4
6
5
"A theory that is not refutable by any conceivable event is non-scientific." — Karl Popper
"A theory that is not refutable by any conceivable event is non-scientific." — Karl Popper
"It does not matter how slowly you go as long as you do not stop." — Confucius
"It does not matter how slowly you go as long as you do not stop." — Confucius