1
8
5
2
4
6
1
4
8
7
8
7
9
6
4
5
9
8
2
6
6
2
5
4
8
1
5
2
2
8
7
3
7
9
Sudoku became a global phenomenon in 2004 after The Times of London started publishing it daily.
Sudoku became a global phenomenon in 2004 after The Times of London started publishing it daily.
Sudoku became a global phenomenon in 2004 after The Times of London started publishing it daily.
Sudoku became a global phenomenon in 2004 after The Times of London started publishing it daily.