PlaySudoku.us
Hard · Puzzle #460
5
7
9
7
9
4
6
4
8
3
2
4
8
6
2
1
5
6
2
1
7
6
9
7
6
8
5
"In mathematics you don't understand things. You just get used to them." — John von Neumann
"In mathematics you don't understand things. You just get used to them." — John von Neumann
The first modern Sudoku puzzle was published in 1979 by Howard Garns in Dell Pencil Puzzles & Word Games.
The first modern Sudoku puzzle was published in 1979 by Howard Garns in Dell Pencil Puzzles & Word Games.