PlaySudoku.us
Expert · Puzzle #659
5
3
4
3
7
5
1
2
8
6
1
2
1
3
9
7
2
4
1
8
6
4
9
Can you identify the technique needed to make the next move before filling in any digit? Name it, then use it.
Can you identify the technique needed to make the next move before filling in any digit? Name it, then use it.
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.