Morphy at the odds of his Queen's Knight against an amateur — the original Muzio Gambit, conducted with his usual dash. Notes by Löwenthal.
5.O-OThere are at this juncture three moves which may be advantageously adopted by the attacking player, viz.: Kt. to Q. B's 3rd, invented and favoured by McDonnell; P. to Q's 4th, analysed by Ghulam Kassim; and Castles, the move in the text, constituting the original Muzio Gambit;—of the three, we prefer Castling.
6.Qxf3The best move according to the Handbooks (German and English).
6…Qf6This has been pronounced the best move.
8.Bxf7+A novelty; and an ingenious deviation from the ordinary line of play, which all the authors have recommended, viz.: 8. P. to Q's 3rd. The move made leads to positions of a most interesting nature.
8…Kxf7K. to Q. B's sq. would have been better, but even then White would have had a fine attacking game.
10…Qf6Taking the Kt's P. with Queen would have been very ill-advised, because White would have checked with the Q. at Q's 5th, and then played his B. to Q's 4th, &c.
11…Qg6There is nothing better on the board, for if the King go to K's 2nd or Kt's 2nd, White captures P. with R., and wins with ease.
12.Rxf4+Pursuing the game with his usual dash and spirit.
J. Löwenthal, Morphy's Games of Chess (1860) · Public domain · source