4NCL

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The 4NCL, or Four Nations Chess League, is the national chess league of the British Isles. The league is named after the four constituent nations: England, Scotland, Wales, and Ireland.^[a]

The league is played over five weekends, typically at Midlands hotel venues starting in October/November and finishing on the early May bank holiday), and in the top two divisions teams consist of 8 players (at least one of whom must be female).^[1][2]

The 4NCL is run independently as a limited company outside the control of any individual nation's chess governing bodies.

Although an amateur competition for most of its teams, some of the top teams in the league have been able to secure sponsors (including Chess.com and Chessable) to allow them to hire some of the world's top grandmasters. Some of the players to have played in the 4NCL inclide Michael Adams, Alexei Shirov, Maxime Vachier-Lagrave, Anish Giri, Nigel Short,^[3] Viktor Korchnoi, Alexander Morozevich, and Peter Svidler.

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