The “Immortal Game” — Anderssen–Kieseritzky, London 1851 — perhaps the most celebrated brilliancy ever played, in which Anderssen gives up both Rooks, a Bishop, and finally his Queen to mate with his remaining minor pieces. Emanuel Lasker presents it in his lectures, Common Sense in Chess (1896); his public-domain notes follow.
17.Nd5I have not dwelt on the constant violation of principle by Black. The consequence of his imaginative schemes is that none of his pieces are developed; and here White could have smashed Black up by advancing first P - Q 4.
18.Bd6A fine coup.
19.e5Obstructing the line from Q R 8 to K Kt 2. A glorious finish.
Emanuel Lasker, Common Sense in Chess (1896) · Public domain · source