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