Löwenthal against Morphy — the seventh game of their 1858 London match (Philidor's Defence), won by Morphy as Black.
14.f4White has now a splendid game, and the position is in his favour.
17.h4A blunder which at once changed the whole aspect of the game. White's intention was to have played up the King's Knight's Pawn, which would have still further improved his position, but by some hallucination the Rook's Pawn was advanced instead, and left en prise.
24.Na4Another and a fatal mistake, which sacrifices a second Pawn and places the game beyond the pale of recovery.
J. Löwenthal, Morphy's Games of Chess (1860) · Public domain · source