Johannes Hermann Zukertort (7 September 1842 – 20 June 1888) was a leading chess master of German-Polish-Jewish origin. He was the "world number two" for most of the 1870s and 1880s behind Wilhelm Steinitz, who won both of the matches they played (1872 and 1886).
This game is called Zukertort's Immortal game. Zukertort sacrifices his Queen but Blackburne cannot accept, Zukertort sacrifices a rook which Blackburne declines, soon Zukertort forces Blackburne to take the rook and resign 3 moves later. Steinitz described this as "one of the most brilliant games on record.