Jacobus Haring (born March 30, 1913 in Hoorn, † February 25, 1989 in The Hague) was a Dutch chess composer.

Life
Jacobus Haring learned to play chess from his older brothers at the age of eight. He came to chess composition when he was 19. He specialized in two-move trains. Since 1964 he has been an international judge for chess compositions. From 1965 to 1975 he was secretary of the Nederlandes bond van probleemvrienden, the Dutch Problem Chess Association. In 1968, Haring wrote a chess composition for the Dutch writer Godfried Bomans that depicted his initials. In 1990 he was posthumously awarded the title of Grand Master of Chess Composition by the PCCC. Until his retirement, Haring was a civil servant in the technical service of the Rijkswaterstaat, a Dutch construction authority. He was a hydraulic engineer. Jacobus Haring had been married since 1943 and died of cancer.

Chess composition
The Haring theme is named after him: In the Seductions and the Solution, the theme figures move back to their original square on a black parade as a checkmate move.

A dozen studies by Haring are also known.

Literature
M. Niemeijer, P. le Grand: Problem Composers XI: Ing. Jac Haring. Van Spijk, Venlo 1977.
Bert Kieboom: 300 schakproblems van Jac. Haring. Spectrum, Utrecht / Amsterdam 1984. Mainly two-move trains.
Web links
Compositions by Jacobus Haring on the Schwalbe PDB server
Genealogical profile on haring.in (Dutch)
Individual evidence
  Chess Echo, April 20, 1958, page 127
  International Judges for Chess Compositions (English)
  Edward Krabbendam: Bomans as cultural philosophy. (Memento from November 10, 2013 in the Internet Archive) (Dutch)
  Grandmasters of the FIDE for Chess Compositions (English)
  Hilmar Alquiros: The chessworld Project. Encyclopedia of Chess Language

Source: Germain Wikipedia

Others: 7 endgame studies by him are selected on Website arves.org