PlaySudoku.us
Hard · Puzzle #10
6
6
7
3
9
5
6
2
8
3
4
2
4
2
3
5
1
7
8
6
1
7
3
4
7
8
9
4
A Sudoku grid can be solved using only row and column logic, never needing box constraints — but it becomes exponentially harder.
A Sudoku grid can be solved using only row and column logic, never needing box constraints — but it becomes exponentially harder.
"Every master was once a disaster." — T. Harv Eker
"Every master was once a disaster." — T. Harv Eker