The city will host the Olympiad for a second time after previously welcoming the event in 2010.

The decision to award Khanty-Mansiysk the Olympiad over bids from several other countries, including Argentina and Slovakia, was taken during the FIDE Congress, held alongside the 42nd Chess Olympiad in Baku in Azerbaijan last September.

"We have already organised the Chess Olympiad in Khanty-Mansiysk in 2010," FIDE chief executive Geoffrey Borg said.

"Previously we have had 20 international tournaments and events take place in Khanty-Mansiysk including this year's men's and women's Team Championships.

"We also have more plans for 2018 and 2019 and, of course, the biggest event will be in 2020."

Khanty-Mansiysk, located on the eastern bank of the Irtysh River, has earned vast wealth in recent times due to oil. 

Russia has held the event on three other occasions, in Moscow in 1956 and 1994 and Elista in 1998.

"There’s a big team of people supporting chess in Ugra and, of course, in Russia," said Borg.

"We also thank the Governor of Ugra, Natalia Komarova, who supports chess.

"We will support too to make sure that this will be one of the best events ever in the chess world."

FIDE organised the first official Chess Olympiad in 1927 which took place in London.

The Olympiads were occasionally held annually and at irregular intervals until World War Two, but since 1950 they have been held regularly every two years.

The 43rd Chess Olympiad in 2018 is due to take place in Batumi in Georgia.