Max Arn K.S. Karstedt (* Germany,  Wednesday, 15.01.1868  in the zodiac sign Capricorn   -   † Thursday, 22.03.1945)

Germain study composer in chess.

Many of his chess studies are nowadays incorrect and also a great part are theoretical chess endings now.

His discoveries in the field of chess endgames

Karstedt was also the discoverer of the K+B+S vs K+Q fortress (wKh1, Bg2, Se4) which is mentioned, for instance,
in the June 2006 issue of BESN and is explained in details on Roberto Stelling's website.
Tom Morrell claimed to have discovered another K+B+S vs K+Q fortress (wKf2, Bf3, Sg2)
but this claim is not sustained by the Nalimov database.

Others: 20 chess studies composed by him are selected and can be replayed on the Dutch Website arves.org.

Source: arves.org