Schulten–Morphy, New York 1857 — a King's Bishop's Gambit in which the young Morphy sacrifices a pawn to keep the White king from castling, then opens every line against it for a storming attack. Emanuel Lasker gives it among “some of Morphy's games” in Common Sense in Chess (1896); his public-domain notes follow.
7…f3The White King stands in an unobstructed file, so Morphy sacrifices his Pawn to prevent the King from castling with safety. It will be remarked that after the sacrifice the defensive power of the White K R and K B Pawn becomes very weak, both of these Pawns being isolated.
9.h4It would have been better to defend by a developing move, such as (9) B - K 3, when the following play might ensue: (9) ..., R - K; (10) Q - Q 2, Q - K 2; (11) Kt - K 4, B - K B 4; (12) B - Q 3.
10.Ne4Occupying one of White's strong points, only to be attacked by the K B P or Q B, therefore an excellent obstruction.
12.Kc3Here he unnecessarily exposes himself to new dangers. P - B 3 would have provided a safe retreat to the King.
12…b5Quickly opening up all the lines on the side which the White King has chosen as refuge.
13…c6Now he threatens Q - R 4 ch., so he indirectly forces White to remove the well posted Kt from K 4.
18…Rac8Every one of Black's pieces has now long open files, in consequence of the energetic attacking manoeuvres of the last six moves.
19.Kd2Black threatened to win a piece by Kt or Q takes Pawn. K - Kt 2 would have lost immediately on account of (19) ..., B x Kt; (20) R x B, R x R; (21) Q x R, Kt - R 5 ch., either winning the Queen or checkmating the King in the next move.
25…Na4+White resigns. If (26) P x Kt, then Q - Kt 5 mate; if (26) K - Kt, then Kt - B 6 ch., winning first the Queen and then the Rook.
Emanuel Lasker, Common Sense in Chess (1896) · Public domain · source