Jan Schulz was a Czech chess master.

He took 2nd, behind Karel Opočenský

Karel Opocenský

Karel Opočenský was a Czech chess master.-Biography:He was four-time Czech Champion . In 1919, he took 2nd, behind František Schubert, in Prague . In 1925, he tied for 3rd-4th in Paris . In 1927, he won in Česke Budějovice...

, at Belun 1916; won at Prague 1920, tied for 6-8th at Prague 1921 (Karel Hromádka

Karel Hromádka

Karel Hromádka was a Czech chess player, two-time Czech champion, 1913 and 1921 ....

 and František Treybal

František Treybal

František Treybal was a Czech chess master.In 1907 he won the 2nd Czech Chess Championship in Brno. In 1907 he also won in Berlin, and tied for 5-6th in Prague . In 1908, he took 20th in Prague . In 1909, he took 4th in Prague...

 won), tied for 5-7th at Brno 1921 (Hromádka, Karel Treybal

Karel Treybal

Karel Treybal was a prominent Czech chess player of the early twentieth century.Treybal was born in Kotopeky, a village to the southwest of Prague in central Bohemia. He trained as a lawyer and became chairman of the district court in Velvary, a small town on the opposite side of Prague...

 and Ladislav Prokeš

Ladislav Prokeš

Ladislav Prokeš was one of the most prolific composers of endgame studies in chess. He was born and died in Prague....

 won), and won at Prague 1924 (1st Kautsky Memorial).

Schulz played for Czechoslovakia in 1st unofficial Chess Olympiad

1st unofficial Chess Olympiad

The first Team Chess Tournament had been held by coinciding the 1924 Summer Olympics in Paris, 12th - 20 July 1924, at Hotel Majestic. The core of the organizing committee were the Frenchmen Pierre Vincent and Alexander Alekhine. Fifty-four players representing 18 countries arrived to Paris...

 at Paris 1924, and won team gold medal there. He also played in the 2nd Chess Olympiad

2nd Chess Olympiad

The 2nd Chess Olympiad, organized by the Fédération Internationale des Échecs and comprising an open and women's tournament, as well as several events designed to promote the game of chess, took place between July 21 and August 6, 1928 in The Hague, Netherlands.The final results were as...

 at The Hague 1928.

He tied for 3rd-5th at Bratislava 1925 (Richard Réti

Richard Réti

Réti composed one of the most famous chess studies, shown in this diagram. It was published in Ostrauer Morgenzeitung 4 December 1921. It seems impossible for the white king to catch the advanced black pawn, while the white pawn can be easily stopped by the black king...

 won), took 6th at Bardejov 1926 (Hermanis Matisons

Hermanis Matisons

Hermanis Matisons , , was a Latvian chess player and one of world's most highly regarded chess masters in the early 1930s. He was also a leading endgame composer...

 and Savielly Tartakower

Savielly Tartakower

Ksawery Tartakower was a leading Polish and French chess Grandmaster. He was also a leading chess journalist of the 1920s and 30s...

 won), took 5th at Trencianske Teplice (Karl Gilg

Karl Gilg

Karl Gilg was a German chess International Master from Czechoslovakia.Gilg played for Czechoslovakia in several Chess Olympiads....

 and Boris Kostić won), shared 1st with Karel Skalička

Karel Skalicka

Karel Skalička was a Czech–Argentine chess master.In 1924, he won a team gold medal for Czechoslovakia in the 1st unofficial Chess Olympiad in Paris. He took 3rd in group eliminations , and tied for 21-31st in the major tournament...

 and Prokop at Prague 1926 (3rd Kautsky Memorial), tied for 5-8th at Prague 1927 (Hromádka won), took 2nd, behind Opočensky, at Brno 1929, and tied for 5-6th at Mnichovo Hradiště (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).