PlaySudoku.us
Medium · Puzzle #492
5
6
2
3
2
1
6
7
2
4
3
2
4
8
1
4
8
3
2
5
2
6
8
4
3
1
6
2
8
6
9
2
1
5
4
2
3
"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