PlaySudoku.us
Medium · Puzzle #686
1
7
6
3
8
6
1
2
7
7
5
4
1
5
1
6
4
7
7
9
8
5
1
1
7
2
8
3
2
5
4
1
5
4
8
3
4
"Every chess master was once a beginner." — Irving Chernev
"Every chess master was once a beginner." — Irving Chernev
More than 100 million Sudoku puzzles are estimated to be printed in newspapers worldwide each day.
More than 100 million Sudoku puzzles are estimated to be printed in newspapers worldwide each day.