1 · Re-scan
2 · Pencil marks
3 · Pointing pair
4 · Cell resolves
Re-scanning the grid…
7
2
5
8
6
1
3
9
4
1
3
4
5
8
1
4
5
8
9
4
7
4
5
3
2
4
5
7
8
2
4
5
7
8
4
6
3
2
9
5
1
7
6
Scanning row by row for any forced cell (hidden single)…