Capablanca–Chajes, New York 1918, a French Defence remembered above all for the long march of the White King into the centre while the queens are still on the board — an instance, Capablanca notes, of the King becoming a fighting piece. His public-domain notes from Chess Fundamentals (1921) follow.
4.Bd3Not the most favoured move, but a perfectly natural developing one, and consequently it cannot be bad.
4…dxe4P - Q B 4 is generally played in this case instead of the text move.
8.Qe2This is played to prevent P - Q Kt 3, followed by B - Kt 2, which is the general form of development for Black in this variation. If Black now plays 8...P - Q Kt 3; 9 B - Kt 5 ch, B - Q 2; 10 Kt - K 5 and White obtains a considerable advantage in position.
11…g6This weakens Black's King's side. R - K 1 was the right move.
12…e5This is merely giving up a Pawn in order to come out quickly with his Q B. But as he does not obtain any compensation for his Pawn, the move is bad. The text move might be considered a mild form of suicide.
17.Qc4In order to keep the Black Queen from coming into the game.
23.a4White's plan now is to fix the Queen's side in order to be able to manoeuvre freely on the other side, where he has the advantage of material.
27…Kg8Black sees that he now stands in his best defensive position, and therefore waits for White to show how he intends to break through.
38…Kf8Now that he has completed his march with the King, White is ready to advance.
41…Kg8Black overlooks the force of 42 R - Q 7. His best defence was R - Q 1; against which White could either advance the King or play Kt - R 4, threatening Kt - Kt 6 ch.
45.Kf4The interest of this game centres mainly on the opening and on the march of the White King during the final stage of the game. It is an instance of the King becoming a fighting piece, even while the Queens are still on the board.
José Raúl Capablanca, Chess Fundamentals (1921) · Public domain · source