I'm choosing the top-left corner (0,0) as my first move. When the opponent has taken the center, securing a corner is strategically sound as it provides multiple potential winning paths. From this position, I can potentially create winning opportunities along the top row, the left column, and the diagonal from top-left to bottom-right. All corners would be equally good at this point since the board is symmetrical, but I'll start with this one to establish my position.