Since my opponent has taken the center position (1,1), I'll place my O in a corner. Taking a corner is strategically advantageous when the opponent has the center because it gives me multiple potential winning paths later. By choosing the top-left corner (0,0), I create a diagonal threat that my opponent will need to address. If they don't block properly in their next move, I can potentially create a fork (two threats at once) in future moves. All four corners are equivalent in this position, but taking any corner is better than taking a side position at this stage of the game.