PlaySudoku.us
Hard · Puzzle #979
2
6
3
7
1
7
8
9
8
5
4
2
1
1
5
3
9
2
9
1
6
5
8
5
2
4
Wayne Gould distributed his Sudoku software for free to newspapers — he made his money selling puzzle books.
Wayne Gould distributed his Sudoku software for free to newspapers — he made his money selling puzzle books.
The first Sudoku World Championship was held in Lucca, Italy, in 2006.
The first Sudoku World Championship was held in Lucca, Italy, in 2006.