Practice
Anti-knight reps
Quiet board
Full grid
On your own
Where does the 7 go in box 5?
Place it.
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
6
5
3
3
6
2
3
7
6
9
4
8
7
6
8
5
9
4
2
7
6
2
7
Place 7
Check
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