When the opponent takes the center position, playing in a corner is a strong strategic move. By taking the top-left corner (0,0), I create potential winning opportunities along two lines - the top row and the left column - as well as the diagonal from top-left to bottom-right. This position gives me maximum flexibility for future moves and forces my opponent to be defensive on multiple fronts. If they don't block one of my potential lines, I'll have an opportunity to create a fork in a future move.