Karel Traxler
Karel Traxler was a Czech chess master and composer of chess problems. He is best known for the hyper-aggressive variation named after him, the Traxler Variation in the Two Knights Defense.
The Traxler Variation was first shown in the following game against Reinisch, played in Hostouň in 1890:
Because Traxler was a Roman Catholic priest, he rarely played chess in serious competitions. As a composer of chess problems he pursued the style of Bohemian school. He wrote under a number of pseudonyms: Anonymus z Tábora, Karel Kaplan, Vis Maior und Karel Zboněk. From 1896 to 1899, he edited, in part, the journal České listy šachové. He composed over 900 chess problems, mainly 2-, 3-, and 4-move problems, but also multiple-move ones, and more rarely, selfmates. With his brother-in-law, Jan Kotrč, he published a selection of 247 problems that he'd composed by 1910.