I'll place my X in the top-right corner (0,2). This is the optimal move because:

1. It blocks the opponent (O) from potentially creating a diagonal win from top-right to bottom-left in their next move.
2. It creates two potential winning paths for me:
   - A horizontal win across the top row (if I can play at 0,1 next)
   - A diagonal win from top-right to bottom-left (if I can play at 2,2 next)

By creating these two possible winning paths, I force my opponent to block one, but they cannot block both simultaneously. This creates a "fork" situation that dramatically increases my chances of winning on the following move.