Morphy against Löwenthal — the sixth game of their 1858 London match (Sicilian Opening).

1. 6…Nf6 Black has not a good position at this juncture, and perhaps his best method of averting White's attack would be to play 6. Q. B. to R's 3rd, and if White capture B. with B., to play Q. to Q. R's 4th (ch.), and then retake the piece with Q.
2. 7…d5 Played without due reflection; the consequent loss of the Pawn ought otherwise to have been perceived. The following variation shews that there are strong objections also to Black's playing 7. Kt. takes K's P., e.g. 8. R. to K's sq., P. to Q's 4th 9. R. takes Kt., P. takes R. 10. B. takes K. B's P. (ch.), and White wins his opponent's Queen.
3. 12…e4 It would have been better to have played P. to Q's 5th.
4. 13.Bg5 Exacting the full penalty of Black's weak play in the opening.
5. 16…O-O This move loses a piece, but the game was previously past redemption.