5
2
6
4
8
6
9
7
4
2
4
3
5
1
6
9
6
3
6
4
9
2
3
5
4
6
8
3
7
1
8
5
9
8
6
9
4
Scan rows, columns, and boxes for Hidden Singles: a digit that can only go in one cell within a house.
Scan rows, columns, and boxes for Hidden Singles: a digit that can only go in one cell within a house.
Scan rows, columns, and boxes for Hidden Singles: a digit that can only go in one cell within a house.
Scan rows, columns, and boxes for Hidden Singles: a digit that can only go in one cell within a house.