Oskar Piotrowski was a Polish 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.

In 1902, he played in several chess tournaments in Berlin

Berlin

Berlin is the capital city of Germany and is one of the 16 states of Germany. With a population of 3.45 million people, Berlin is Germany's largest city. It is the second most populous city proper and the seventh most populous urban area in the European Union...

; took 2nd, behind Eduard Dyckhoff

Eduard Dyckhoff

Eduard Dyckhoff was a German doctor of law and chess player. He won the Bavarian Chess Championship in 1913 and again in 1942, and is often considered an important figure in the development of correspondence chess in the early 20th century. Dyckhoff was born in Augsburg and died in Bad...

, in the Berlin Finckenschaft-Turnier, tied for 4-5th in the Café Kerkau Free Tournament (Curt von Bardeleben

Curt von Bardeleben

Curt von Bardeleben was a Count and a German chess master who committed suicide by jumping out of a window in 1924. His life and death were the basis for that of the main character in the novel The Defense by Vladimir Nabokov, which was made into the movie The Luzhin Defence...

 won), lost a game to Ranneforth in a match Anderssen Chess Club vs. Berlin Finckenschaft Club,
tied for 2nd-3rd with Erich Cohn

Erich Cohn

Erich Cohn was a German chess master.He won or tied for 1st in several tournaments in Berlin . In strong tournaments, he tied for 11-12th at Berlin 1903 . He took 10th at Coburg 1904 . In 1905, he took 5th in Barmen...

, behind Ossip Bernstein

Ossip Bernstein

Ossip Samoilovich Bernstein was a Russian chess grandmaster and a financial lawyer.-Biography:...

, in the Berlin Summer Tournament - Section I (Quadrangular), and shared 2nd with Moritz Lewitt

Moritz Lewitt

Moritz Lewitt was a German chess master.Born in Poznan, Greater Poland , he lived in Berlin, and was the longtime president of the oldest German Chess Club, the Berliner Schachgesellschaft von 1827. When he was reelected in 1904, the club was also the largest in Germany, with over 150 members. Dr...

, behind Bernstein, in the 1st Tournament of the General Chess Federation of Berlin. In that year, he took 20th in Hanover

Hanover

Hanover or Hannover, on the river Leine, is the capital of the federal state of Lower Saxony , Germany and was once by personal union the family seat of the Hanoverian Kings of Great Britain, under their title as the dukes of Brunswick-Lüneburg...

 in the 13th 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...

 (Hauptturnier A, Walter John

Walter John

Walter John , was a German chess master.John was born at Thorn , Poland . He took 2nd, behind Curt von Bardeleben in Café Kerkau, and took 4th at Berlin 1902. He won at Hanover 1902...

 won).

He won twice in the Lemberg City championship in 1912 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 was one of the leading Lvov chess masters, along with Ignatz von Popiel

Ignatz von Popiel

Ignatz von Popiel was a Polish-Ukrainian chess player.-Biography:...

, Kalikst Morawski

Kalikst Morawski

Kalikst von Morawski was a Polish chess master.Born in a village Boryszkowce , Galicia , he studied law in the Lviv University from 1877 to 1884. He moved to Stanislau in 1893, and lived there until 1914, working in the state treasure's office...

, and Henryk Friedman

Henryk Friedman

Henryk Friedman was a Polish chess master.He lived in Lvov . In 1926–1934, Friedman won seven times in succession the Championship of Lvov but 1930, when he took 2nd place behind Stepan Popel. Friedman played in four Polish championships. In 1926, he took 14th in Warsaw . The event was won by...

. He took 4th in Lvov-ch in 1929 (Stepan Popel

Stepan Popel

Stepan Popel was a multiple chess champion of Lviv, Paris and eventually, of the Ukrainians in North America .-Biography:Stepan Popel was the nephew of an early master, Ignatz von Popiel , and took...

 won), and won at Lvov 1933 (LKSzach).

An engineer Oskar Piotrowski was a delegate from Lvov at a meeting held in Warsaw

Warsaw

Warsaw is the capital and largest city of Poland. It is located on the Vistula River, roughly from the Baltic Sea and from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most...

 on April 11, 1926, to establish the Polish Chess Federation

Polish Chess Federation

The Polish Chess Federation was created on 11 April 1926 in Warsaw. Józef Żabiński was the first chairman. The initial statute outlined the fundamental objectives of the association including amongst others the popularisation of the game of chess and general organization of the chess movement in...

 (PZSzach). He was a member of the board of the federation in the period from 1926 to 1935.

He was a double-ganger of Ostap Ortwin

Ostap Ortwin

Ostap Ortwin was a Polish journalist and literary critic....

.

Reference