PlaySudoku.us
Easy · Puzzle #728
4
9
2
8
7
3
9
5
1
7
4
5
3
8
4
3
7
6
1
6
9
2
7
3
5
4
7
3
6
5
2
9
4
6
1
2
7
3
2
9
8
5
1
2
8
5
9
"Mathematics is the door and key to the sciences." — Roger Bacon
"Mathematics is the door and key to the sciences." — Roger Bacon
Retired architect Howard Garns, who invented the modern Sudoku, never knew it became a global phenomenon — he died in 1989.
Retired architect Howard Garns, who invented the modern Sudoku, never knew it became a global phenomenon — he died in 1989.