I just wanted to know the winning strategy to this question:
In a reverse Hex board game I know it means where the player who first forms a path between his/her edges loses. Find a winning strategy for Black in a $3$ x $3$ reverse Hex.
Here White (player one) moves up and down and Black (player two) moves left to right.
The Hex would look like:
1 2 3 4 5 6 7 8 9
where 3 is the uppermost corner and 7 is the lower most corner. It sliding down to the left (northeast to southwest).
I just started to learn how to play this game. I wanted to find a convincing strategy for Black. I was telling my friend that Black has a winning strategy because if he does not play in the middle he has a chance of winning. If White does play in the middle then Black can play opposite it. It seemed like a good strategy at the time. Can someone please help me to provide a convincing argument to see the winning strategy for Black?