There is no one best strategy in chess. However, there are a number of opening plays and tactics that have been studied for centuries that are considered very powerful.
An effective opening play is a critical part of a good chess strategy. Chess openings have been formally studied since the 15th century and may date back even further. Openings such as the Ruy Lopez, Sicilian defense and the Caro-Kann defense are considered very smart and powerful plays. Knowing the value of pieces and knowing your position are also crucial to a winning chess strategy. Finally, good endgame tactics, including exploiting passed pawns and controlling open files with rooks, are essential to achieving checkmate.