Looking at the current board, I need to block my opponent from winning. If I examine the right column (column 2), I can see that X already has two marks there (at positions 0,1 and 1,2). If they place a third X in position 0,2, they would win with a vertical line.

By placing my O at position 0,2, I block their immediate win. While this move doesn't create a winning line for me (as all my potential lines are already blocked), it's the best defensive play available. Position 2,2 would also block the same threat, but I'm choosing the top-right corner as it distributes my pieces across more of the board, potentially making it harder for my opponent to form winning patterns in the final moves.