1
7
9
6
3
1
9
5
8
4
7
1
2
9
4
5
8
1
3
2
4
7
9
3
6
4
1
2
7
5
6
4
9
8
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.
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.