PlaySudoku.us
Medium · Puzzle #250
7
4
7
2
5
2
6
9
3
1
8
5
7
9
5
4
3
8
7
2
1
1
4
6
3
5
7
9
6
8
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.
Naked Pairs: if two cells in a house share the same two candidates, eliminate those digits from all other cells in that house.
Naked Pairs: if two cells in a house share the same two candidates, eliminate those digits from all other cells in that house.