PlaySudoku.us
Medium · Puzzle #675
5
3
7
4
8
4
1
5
6
9
2
9
1
2
3
5
4
6
7
7
1
3
9
4
8
3
5
7
8
4
6
2
9
4
"The universe is under no obligation to make sense to you." — Neil deGrasse Tyson
"The universe is under no obligation to make sense to you." — Neil deGrasse Tyson
The Times of London received so many reader letters about Sudoku in 2004 that they had to hire extra staff to handle them.
The Times of London received so many reader letters about Sudoku in 2004 that they had to hire extra staff to handle them.