PlaySudoku.us
Expert · Puzzle #568
4
5
8
6
1
8
9
6
4
2
5
9
2
3
2
4
9
8
1
7
3
9
8
1
4
3
Before using pencil marks, see how far you can get with pure logic and mental candidate tracking.
Before using pencil marks, see how far you can get with pure logic and mental candidate tracking.
During the 2006 World Cup in Germany, Sudoku books outsold football guides at Frankfurt airport.
During the 2006 World Cup in Germany, Sudoku books outsold football guides at Frankfurt airport.