PlaySudoku.us
Expert · Puzzle #842
8
2
7
9
1
6
6
4
9
6
2
5
8
2
5
6
4
1
5
5
4
8
1
3
9
"We must know. We will know." — David Hilbert
"We must know. We will know." — David Hilbert
The first Sudoku World Championship was held in Lucca, Italy, in 2006.
The first Sudoku World Championship was held in Lucca, Italy, in 2006.