PlaySudoku.us
Hard · Puzzle #157
7
2
1
8
1
1
4
7
8
1
4
1
2
8
9
5
3
6
5
9
3
2
5
7
3
2
"Mathematics is the art of giving the same name to different things." — Henri Poincaré
"Mathematics is the art of giving the same name to different things." — Henri Poincaré
"Impossible is not a fact. It's an opinion. Impossible is not a declaration. It's a dare." — Muhammad Ali
"Impossible is not a fact. It's an opinion. Impossible is not a declaration. It's a dare." — Muhammad Ali