Heinz Zander (19-03-1924 - 14-09-2004) German chess composer

Heinz Zander wrote with Günter Glaß "Nur ein Bauer", a special Feenschach issue in 1974. He was a specialist of selfmates and composed about 500 chess problems.
He is also the inventor of the fairy condition Kölner Kontaktschach, better known under the shorter name Köko. He wrote a short pamphlet "Neues vom Köko" with 15 Köko problems in 1990.                                                      Source: chesscomposers.blogspot.com