I'll place my O at position 1,0 (middle-left) because this creates an immediate threat along the left column. I already have an O at the top-left (0,0), so placing an O at 1,0 creates a vertical threat. This forces my opponent to block at 2,0 on their next turn, otherwise I can win by completing the vertical line. This is a strong offensive move that puts pressure on my opponent and restricts their options. If they do block at 2,0, I can pivot to other strategies, but forcing them to make a defensive play gives me control of the game.