PlaySudoku.us
Hard · Puzzle #520
5
4
3
8
1
9
7
9
7
8
6
3
5
8
4
7
3
1
4
2
8
7
2
3
5
3
The world record for solving an easy Sudoku is under 1.4 seconds, set in competitive speed-solving.
The world record for solving an easy Sudoku is under 1.4 seconds, set in competitive speed-solving.
The world record for solving an easy Sudoku is under 1.4 seconds, set in competitive speed-solving.
The world record for solving an easy Sudoku is under 1.4 seconds, set in competitive speed-solving.