What is the most effective reversi strategy for gaining a competitive advantage in the game?

One of the most effective strategies in Reversi for gaining a competitive advantage is to focus on controlling the corners and edges of the board. By securing these key positions early in the game, you can limit your opponent's options and increase your own chances of controlling more of the board. Additionally, prioritizing mobility and flexibility in your moves can help you adapt to changing game situations and outmaneuver your opponent.