PlaySudoku.us
Medium · Puzzle #693
5
6
4
2
9
4
1
2
3
1
7
8
3
9
6
1
9
4
7
2
8
4
8
3
1
9
3
7
1
6
2
8
1
9
During the 2006 World Cup in Germany, Sudoku books outsold football guides at Frankfurt airport.
During the 2006 World Cup in Germany, Sudoku books outsold football guides at Frankfurt airport.
"A mathematician who is not also something of a poet will never be a complete mathematician." — Karl Weierstrass
"A mathematician who is not also something of a poet will never be a complete mathematician." — Karl Weierstrass