José Raúl Capablanca begins Chess Fundamentals by establishing the power of the pieces through simple checkmates involving a single rook, two bishops, or a queen supported by the king. He then addresses pawn promotion, illustrating how an advancing king and careful pawn management can secure a win or force a draw. The text transitions into pawn endings, introducing the critical concept of the opposition and the method of counting to determine which pawn will queen first. Moving into the middle-game, Capablanca demonstrates tactical combinations that rely on the co-ordination of pieces to exploit opponent weaknesses and achieve quick mates.
He evaluates the relative value of knights and bishops, explaining that bishops generally hold greater long-term value, especially with pawns on both sides of the board. The strategic principles of the opening are outlined with a focus on rapid development, control of the center squares, and avoiding common tactical traps. In the later chapters, Capablanca explores advanced endgame strategies, including queen versus rook battles, rook and pawn endings, and maneuvering with two rooks to exploit greater mobility. He includes complete games from his own tournament career to illustrate how theoretical principles are applied in practical master play. Throughout the text, the author emphasizes the importance of a coherent plan, maintaining freedom of maneuver, and the necessity of rigorous endgame technique to convert positional advantages into wins.