The title match is the best of three games; until 2010 it was best of five (apart from 1974 when it was a single game).
This originated as the Cambridge Tournament, but it was renamed in 1977 in honour of Nicolaus Trigantius, a monk who travelled to China in the 17th Century and wrote about Go.
A 3 Round McMahon tournament, still held in Cambridge.
In order to play, players must be British (or long-term residents), active in tournaments and of a certain level.
Part of the British Championship, is held to select the two players who will compete in the British Championship Title Match. Until 2005 it selected one challenger who played the reigning champion.
Players compete in the Candidates' Tournament for places in the League.
It incorporated the Candidates' Tournament between 1979 and 1982.
This fast-play event is run at the British Go Congress, usually on the Friday evening. The tournament system varies from year to year. Nowadays the event is usually played with handicaps. It was originally a free-standing event.
At the 16th MSO in London the Go gold medals went to Francis Roads and Felix Wang.
In the 13x13 event eight players from 3d to 10k played over five rounds. Francis Roads won his first four games and, despite stumbling in the last game against Michael Dixon (10k), was the winner. Taking the silver was Spain's Paco de la Banda (3d) who also won 4 but lost to Francis.
Held at the 16th MSO at University of London Union.
The British Go Association is running the Congress alongside the European Youth Go Championships in 2014. Accompanying players may wish to enter the British Open on payment of the appropriate fee, whilst their junior players are playing the EYGC.