Morphy against Harrwitz — the sixth game of their 1858 Paris match (Philidor's Defence), finished off with an instructive king-and-pawn ending.
4…Nf6A bad move, subjecting Black to immediate attack.
5…dxe5The correct reply would have been Q. to K's 2nd, but even that would have left White with a somewhat superior game.
9…Bxc4This was in a manner compelled, for if any other line of play had been chosen, White would have taken the King's Bishop with his Knight, and the Pawn on re-taking would have been left isolated and weak.
14.Ne4So framing the attack as at once to secure a winning position; this is a far stronger move than the more obvious one of Kt. to Q's 6th (ch.), &c.
14…h6He has nothing better, for if K. to B's sq., White wins a Pawn by Kt. takes B.; and if B. to K's 4th, White may with advantage play up P. to K. B's 4th.
15.Bxf6+Kt. takes Kt. would also have been of advantage to White; but as the adverse Bishops would then have been of different colours, the game in that case would probably have resulted in a draw. Mr. Morphy, therefore, selected the better move.
22…Kf8Had the King moved to Q's 2nd, the reply on White's part would have been B. to Q's 5th. To have saved his K. B's P. Black must then have advanced it, when the Bishop would have checked at K's 6th, and afterwards have been posted at K. B's 7th, &c.
35.Kb5Finely played. The end game is finished off by Mr. Morphy with consummate skill, and the position is highly instructive.
48.Qf3And wins. For if 48. ... P. to R's 7th; 49. Q. to K. Kt's 3rd (ch.), K. to R's sq; 50. Q. to K. B's 2nd, mating next move.
J. Löwenthal, Morphy's Games of Chess (1860) · Public domain · source