Read and work with the book My System written by Nimzowitsch. Yes, there are many mechanics in chess. Opening a file, creating a strong square, placing a light piece on the strong square, opening and invading on the a-file, binding a knight to a queen with a bishop, blocking a passed pawn with a knight, using the bishop pair to create holes in the opponent pawn structure, performing a mating attack with a queen+knight, building a bishop and queen battery, weakening the enemy pawn structure with a sacrifice, using the seventh rank with the heavy pieces, building maximum pressure on a square, etc.
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