I'm choosing the top-left corner (0,0) as my first move. With the opponent having played in the center, taking a corner is a strong strategic choice. This prevents the opponent from immediately creating a fork position and gives me potential to create diagonal or edge-based winning opportunities. By taking a corner, I'm working toward creating multiple winning paths (either along the top row, the left column, or the main diagonal), which will force my opponent to play defensively rather than offensively.