Morphy against Harrwitz — the fifth game of their 1858 Paris match (a Dutch Defence).
4…Be7In the third game of this match Mr. Morphy played B. to Q. Kt's 5th at this point.
12.f4An ill-advised move. The K. Kt's P. and K's P. are now both of them weak, and the cause of much subsequent embarrassment. We should have much preferred P. to K's 4th.
15…Rae8Attacking the weak point which we have mentioned above.
16…Qh4Well played. Not only threatening Q. to Kt's 6th, by which an irresistible attack would have been gained, but also the bringing of the Rooks into speedy co-operation with the Queen on the weak flank.
21.a3The last four moves are equally judicious and correct.
26…Ng4+The Knight now occupies an offensive square from which he cannot easily be dislodged.
33.b5Properly preventing the advance of the Q. Kt's P.
37…Ra8Black might here have gained three Pawns for his Knight by taking the Q's P., but it is questionable in a match game whether such a step were prudent. Mr. Morphy chose a surer mode of proceeding to victory.
50…h4After this, White's game was hopeless. The latter stages of this partie are played by Mr. M. with marked ability.
54…Ke3And wins.
J. Löwenthal, Morphy's Games of Chess (1860) · Public domain · source