Simon Rotenstein was a German chess

Chess

Chess is a two-player board game played on a chessboard, a square-checkered board with 64 squares arranged in an eight-by-eight grid. It is one of the world's most popular games, played by millions of people worldwide at home, in clubs, online, by correspondence, and in tournaments.Each player...

 master.

At the beginning of his career, he shared 2nd with Wilhelm Cohn

Wilhelm Cohn

Wilhelm Cohn was a German chess master.He participated in some strong tournaments. In 1897, he tied for 13-14th in Berlin . In 1898, he tied for 2nd-4th in Cologne . In 1899, he tied for 10-11th in London...

, behind Carl Ahues

Carl Ahues

Carl Oscar Ahues was a German chess International Master.He was Berlin champion in 1910. He was German Champion in 1929 winning the 26th DSB Congress in Duisburg. In 1930, he took 6th in San Remo , tied for 4-5th in Scarborough , and tied for 3-5th in Liege...

, in Berlin championships in 1911, and won in Winterturnier des SK Springer the same year. He played in two friendly matches Berlin vs. Prague in 1913 and 1914.

After World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

, he won in Blitzturnier der Berliner Schachgesellschaft and won in Winterturniers des Berliner Schachvereins in 1919, tied for 5-6th in Berlin-ch in 1919, shared 3rd at Berlin 1920 (DSB Congress

DSB Congress

The Deutschen Schachbund had been founded in Leipzig on 18 July 1877. When the next meeting took place in the Schützenhaus on 15 July 1879, sixty-two clubs had become member of the chess federation. Hofrat Rudolf von Gottschall became Chairman and Hermann Zwanziger the General Secretary...

, II. Hauptturnier), took 3rd, behind Alexey Selezniev

Alexey Selezniev

Alexey Selezniev was a Russian chess master....

 and Friedrich Sämisch

Friedrich Sämisch

Friedrich Sämisch was a German chess grandmaster .-Main results:* 2nd at Berlin 1920...

, at Berlin 1920, took 4th in Berlin-ch in 1921 (Willi Schlage

Willi Schlage

Willi Schlage was a German chess master and trainer.In 1910, he won in Hamburg . He played in friendly matches: Berlin–Prague , Berlin–Holland , Germany–Netherlands , and Germany–Sweden...

 won), tied for 7-8th at Bad Oeynhausen 1922 (German Chess Championship

German Chess Championship

The German Chess Championship has been played since 1861, and determines the national champion.Prior to 1880 three different federations organized chess activities in Germany: the Westdeutscher Schachbund , the Norddeutscher Schachbund and the Mitteldeutscher Schachbund . Each one organized its...

, Hauptturnier), took 2nd, behind Otto Wegemund

Otto Wegemund

Otto Wegemund was a German chess master.He participated many times in Berlin City Chess Championship; took 6th in 1906 , took 10th in 1908 , took 10th in 1910 , tied for 7-8th in 1920 , tied for 5-6th in 1924 , shared 4th in 1925 , and...

, in Winterturnier des Berliner Schachvereins in 1923, and played in a match Berlin vs. Prague/Brno in 1923.

He took 10th at Berlin (Café König) 1928 (Efim Bogoljubow

Efim Bogoljubow

Efim Dmitriyevich Bogolyubov was a Russo-German chess grandmaster who won numerous events and played two matches with Alexander Alekhine for the world championship.-Early career:...

 won), and tied for 5-8th in Berlin-ch in 1929. His best achievement was the first place (jointly with Ludwig Rellstab

Ludwig Rellstab (chess player)

Ludwig Rellstab was a German chess master.He was German Champion, winning at Bad Oeynhausen 1942. He took 8th in the European Championship at Munich 1942 . In 1943, he took 6th in Salzburg...

 and Kurt Richter

Kurt Richter

Kurt Paul Otto Joseph Richter was a German chess International Master and chess writer.- Chess achievements :...

) in the Berlin City Chess Championship

Berlin City Chess Championship

The Berlin Chess Championship is an annual chess tournament in Germany. The first unofficial Berlin Chess Championship was held in 1853, and Jean Dufresne won a match against Max Lange.Since 1904, official Berlin championships have taken place...

 in 1930.
Then he tied for 7-8th at Frankfurt 1930 (Hauptturnier), tied for 11-12th at Berlin 1932, and played in a telephone match Berlin vs. Hamburg in December 1932.

During the Nazi period in Germany, he won jointly with Sammi Fajarowicz

Sammi Fajarowicz

Sammi Fajarowicz was a German chess master.Born into a Jewish family with Ukrainian roots. He played several times in Leipzig championships; took 3rd in 1928, took 2nd in 1929, shared 1st with Max Blümich, but lost to him a play-off match in 1930, and twice won in 1931 and 1933...

and Jankel Mundsztuk in Jüdische Meisterschaft Deutschlands at Leipzig 1935.