PlaySudoku.us
Hard · Puzzle #649
1
3
8
4
3
5
6
4
8
5
6
3
8
1
7
9
7
4
5
3
6
1
5
6
7
4
7
8
6
"Be less curious about people and more curious about ideas." — Marie Curie
"Be less curious about people and more curious about ideas." — Marie Curie
Japan has a national Sudoku puzzle competition with separate categories for speed and accuracy.
Japan has a national Sudoku puzzle competition with separate categories for speed and accuracy.