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