6
9
5
7
1
4
2
9
6
2
5
1
1
4
8
6
9
3
8
3
7
2
2
9
1
6
8
9
3
8
9
5
7
4
3
5
1
Solve a puzzle type you usually avoid. Discomfort is where real learning happens.
Solve a puzzle type you usually avoid. Discomfort is where real learning happens.
After finishing any puzzle, go back and find every naked pair and hidden single you used. Catalog your techniques.
After finishing any puzzle, go back and find every naked pair and hidden single you used. Catalog your techniques.