Problem
First name
Grace
School
Meavy
Country
Age
8
The smallest number of answers you need to reveal for any given square grid is:
(nx2)-1
where n is the number of squares along one side.
The smallest number of answers you need to for any given rectangular grid is:
(a+b)-1
where a is the number of squares along one side and b is the number of squares along the other side.