PlaySudoku.us
Hard · Puzzle #611
6
8
1
9
7
3
7
4
3
2
9
1
3
7
9
3
2
6
1
8
2
6
4
8
1
8
5
7
"The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful." — Henri Poincaré
"The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful." — Henri Poincaré
The puzzle was originally called "Number Place" in the US. The name "Sudoku" was given by Japanese publisher Nikoli.
The puzzle was originally called "Number Place" in the US. The name "Sudoku" was given by Japanese publisher Nikoli.