Problem
First name
emily valentine
School
s.t nicolas C of E primary school
Country
Age
10
Winning lines can either be:
Diagonal
Not diagonal
Considering the non-diagonal winning lines first:
There are 9 from front to back.
There are 9 from left to right.
There are 9 from top to bottom.
Considering the diagonal winning lines:
On each layer there are 2 diagonal winning lines so:
There are 6 from front to back.
There are 6 from top to bottom.
There are 6 from left to right.
There are 4 lines from a vertex to a diagonally opposite vertex.
In total, there are 27+18+4=49 winning lines.