I'm playing position (1,0) for two critical reasons:

1. Defensive necessity: My opponent has Os at (0,0) and (2,0). If they place their next O at (1,0), they would complete a vertical column and win immediately. I must block this.

2. Strategic advantage: By placing my X at (1,0), I create a "fork" situation. I'll now have Xs at (1,0), (1,1), and (2,2), which sets up two potential winning paths for my next move:
   - I can win horizontally if I later place at (1,2)
   - I can win diagonally if I later place at (0,2)

This move both prevents an immediate loss and forces my opponent into a defensive position, giving me a strong advantage for the next round.