The opening involves the initial moves where players aim to mobilize their pieces and control important squares and files. The middlegame begins once the opening has concluded, focusing on strategy, maneuvering for an advantageous position, and attempting to exploit weaknesses. Finally, the endgame commences when only a few pieces remain on the board. Players must carefully navigate pawn structures, activate their kings, and precisely calculate lines to convert an advantage into a winning position or hold a draw.