Allan Nilsson was a Swedish chess master.

He was Swedish Champion

Swedish Chess Championship

The first Swedish Champion was Gustaf Nyholm who won two matches against winners of national tournaments: Berndtsson in Göteborg and Löwenborg in Stockholm in 1917. Until 1931 Swedish Chess Championships decided by match play. In the 1930s, Gideon Ståhlberg held the title in spite of results of the...

 in 1924-1929, and played four matches for the title, all in Göteborg (Gothenburg). He drew a match with Gustaf Nyholm

Gustaf Nyholm

Gustaf Nyholm was a Swedish chess master.He was the first Swedish Champion , and a Nordic Champion in 1917....

 (2.5 : 2.5) in 1921, won against Nyholm (3 : 1) in 1924, drew with Gösta Stoltz

Gösta Stoltz

-Biography:Stoltz played a few matches with strong chess masters. In 1926, he lost to Mikhail Botvinnik at a team match Stockholm – Leningrad in Stockholm. In 1927, he drew with Allan Nilsson in Göteborg . In 1930, he won against Isaac Kashdan in Stockholm. In 1930, he lost to Rudolf Spielmann ...

 (2.5 : 2.5) in 1927, and lost to Gideon Ståhlberg

Gideon Ståhlberg

Anders Gideon Tom Ståhlberg was a Swedish chess grandmaster.He won the Swedish Chess Championship of 1927, became Nordic champion in 1929, and held it until 1939....

 (0 : 3) in 1929.

He tied for 2nd-3rd, behind Paul Johner

Paul Johner

Paul Johner was a Swiss chess master.A noted musician , elder brother of Hans Johner, he won the Swiss Championship in 1907 , 1908 , 1925, 1928 , 1930 and 1932 .He played in many international tournaments...

, at Göteborg 1920, shared 1st with Anton Olson

Anton Olson

Anton Olson was a Swedish chess master.He was Swedish Champion in 1921, and thrice played matches for the title, all in Stockholm. He lost a match to Gustaf Nyholm in 1919, won against Nyholm in 1921, and lost to Nyholm in 1921.He took 2nd, behind Boris Kostić, at Stockholm 1913; shared 1st...

 at Uppsala 1923, and took 3rd at Copenhagen 1924 (Nordic Championship

Nordic Chess Championship

The first Nordic Chess Championship took place in Stockholm in 1897.-Winners:The winners in the Nordic Championship in 1934 and 1936, Aron Nimzowitsch and Erik Lundin, got the Nordiske kongresmestre title, as the champion 1930, Erik Andersen, defended his title with 3-3 against Gideon Ståhlberg at...

, Aron Nimzowitsch

Aron Nimzowitsch

Aron Nimzowitsch was a Russian-born Danish unofficial chess grandmaster and a very influential chess writer...

 won).

Nilsson represented Sweden in the 1st Chess Olympiad

1st Chess Olympiad

The 1st Chess Olympiad, organized by the FIDE and comprising an open and women's tournament, as well as several events designed to promote the game of chess, took place between July 18 and July 30, 1927, in London, United Kingdom...

 at London 1927, and tied for 9-11th in the Amateur World Championship (Max Euwe

Max Euwe

Machgielis Euwe was a Dutch chess Grandmaster, mathematician, and author. He was the fifth player to become World Chess Champion . Euwe also served as President of FIDE, the World Chess Federation, from 1970 to 1978.- Early years :Euwe was born in Watergraafsmeer, near Amsterdam...

 won), which took place during 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.