Longlasting (50 years or more) and ongoing annual chess tournament series of major international status

U.S. Open *1900 - www.chessdiagonals.ch

Hastings *1920/21 - www.chessdiagonals.ch

Wijk aan Zee *1938 - www.chessdiagonals.ch

==>> Hastings & Wijk - www.chessdiagonals.ch

Sarajevo *1957 - www.chessdiagonals.ch (Bosna, today a rather regional Open tournament)

Havana *1962 - www.chessdiagonals.ch (Capablanca Memorial, played at various venues)

Biel Festival - www.chessdiagonals.ch, Lächeln 50th consecutive annual edition in 2017

For an overall survey of recurring individual internationl tournament *serials* in classical chess, please visit: Tournament *series* - www.chessdiagonals.ch

Famous former series (a selection)

History: Banja Luka - www.chessdiagonals.ch

History: Malmö - www.chessdiagonals.ch

History: Lugano Open - www.chessdiagonals.ch

History: Alicante
History: Dos Hermanas
History: Las Palmas
History: Magistral de Madrid
; and earlier tournaments
History: Olot
History: Palma de Mallorca
History: Pamplona
History: Zafra,
Ruy Lopez Festival (played at various venues)

==> Spain invitationals - www.chessdiagonals.ch

History: London, Lloyds Bank Open
History: London, Phillips & Drew Kings, then GLC Chess Challenge
History: London, Watson, Farley, Williams (one event in New York)
History: London, Staunton Memorial
History: Margate Chess Congress
History: Teesside
(diverse tournaments in a row)

==> Great Britain series - www.chessdiagonals.ch
(including current top series Gibraltar Tradewise, London Chess Classic and Isle of Man Open!)

History: Ostend
History: Brussels OHRA and Brussels SWIFT

==> Brussels, Ostend - www.chessdiagonals.ch 
(a complete Belgian chess history, including Lost Boys series, and Leuven Rapid since 2016)

History: Reggio Emilia
History: Rome (Banco di Roma) 
History: Venice

==> Reggio, Rome, Venice - www.chessdiagonals.ch

History: Novgorod
History: Sofia, M-Tel
and some unregulars

==> Furthermore (elite) - www.chessdiagonals.ch

Special: History Gausdal Classics
Special: History Athens Acropolis

Excursus: GMA Open series 1988-1989, 1990
Excursus:
PCA Super Classic series 1995 

==> Tournament *series* - www.chessdiagonals.ch 

Longlasting and ongoing series in Rapid

Special: Corsican Circuit, Rapid Chess Festival 

==> Tournament *series* - www.chessdiagonals.ch

International tournament series in Switzerland

Special: Serials in Switzerland
Major recurring international open or closed chess tournament series - past and present

Basel Open

Basel Open - www.chessdiagonals.ch

http://schachfestivalbasel.ch/ (Basel)

Biel Festival

Biel Festival - www.chessdiagonals.ch

==>> Biel Interzonals - www.chessdiagonals.ch

==>> Winners at Biel - www.chessdiagonals.ch

http://www.bielchessfestival.ch/ (Biel)

Geneva all 

Geneva all - www.chessdiagonals.ch

Zurich all incl. Horgen

Zurich all - www.chessdiagonals.ch

http://www.weihnachtsopen.ch/ (Zurich)

http://www.zurich-cc.com/ (Zurich)

History: SCRM Pfäffikon (Rapid)
History: Liechtenstein Open

Zurich all - www.chessdiagonals.ch

History: Bern all

History: Bern - www.chessdiagonals.ch

History: Lausanne Young Masters YM

History: Lausanne YM - www.chessdiagonals.ch

http://www.lausanneyoungmasters.com/
(Young Masters LYM and Lausanne Open, series stopped)

History: Lucerne all

History: Lucerne - www.chessdiagonals.ch

History: Lugano Open

History: Lugano Open - www.chessdiagonals.ch

International chess circuit in the year 1946 and in 2014

Chessdiagonals also presents a survey of the chess circuit in 1946, the beginning of modern chess after WWII and the death of Alekhine (March 1946), Capablanca (1942), and Lasker (1941).

Enjoy the best games played in 1946, watch out this unique summary of all major international invitation tournaments held in 1946, with the busiest players on chess circuit about 70 years ago.

Chessdiagonals was launched in 2014, that corresponding chess year earns a closer look, too:

1946 & 2014 - www.chessdiagonals.ch