Gerd Rinder (born July 3, 1935 in Munich; † January 20, 2022 in Haar) was a German chess player, chess composer and software developer of the timetable program MOSAIK. He is the son of the chess player Friedl Rinder and Alfons Rinder.

Tournament chess
In 1954 he became German youth chess champion in Braunschweig.[1] Now a title for U18 players, this tournament was open to U20 players until 1999.[2] In 1955, 1958 and 1959 he became the individual champion of the city of Munich, and in 1960 he won the individual championship of the Bavarian Chess Federation in Bamberg.[3] Rinder took part in the final round of the German team championship six times with Münchener SC 1836 between 1959 and 1965 and won them in 1962, 1963, 1964 and 1965.

Chess composition
1966 and 1968: Bavarian Problem Master (chess composition)
1977, 1978 and 1980: German champion in solving chess problems
Rinder then served as a judge for the World Chess Federation FIDE and was awarded the title of FIDE Master for Chess Composition by the World Chess Federation. He published more than 80 compositions, including around 30 studies. Many of his works appeared in the magazine Die Schwalbe.

Timetable program
With the timetable program MOSAIK, he developed a program that was the first program on small computers (Commodore 3032) to be able to create a complete timetable. He began developing such a program on mainframe computers as early as 1970. He also knew how to use the very limited storage space at the time very effectively. For this purpose he invented his own programming language (Dendra). MOSAIK was supported by the Ministry of Culture for a long time and was used not only by the city of Munich, but also throughout Bavaria. It also became more and more popular abroad before being replaced by other programs with more modern user interfaces.

Web links
Commons: Gerd Rinder - collection of images
Compositions from Rinder on the PDB server
Replayable chess games by Gerd Rinder on 365Chess.com (English)

Individual evidence
  8th German Youth Championship (West), Braunschweig 1954 (Memento from March 4, 2016 in the Internet Archive)
  German individual championships for male youth (Memento from February 12, 2013 in the Internet Archive) on the website of the German Chess Federation
  Bavarian Individual Championships (Memento of the original from April 16, 2014 in the Internet Archive)

Source: Germain Wikpedia

Others: On Dutch Website ARVES are 12 endgame studies selected. (Studies selected and one corrected by Peter Siegfried Krug):