PlaySudoku.us
Medium · Puzzle #459
6
5
2
4
6
7
8
7
9
7
1
3
6
9
4
7
2
8
1
6
1
4
3
7
4
2
5
3
6
5
1
"Young man, in mathematics you don't understand things. You just get used to them." — John von Neumann
"Young man, in mathematics you don't understand things. You just get used to them." — John von Neumann
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.