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Largest Multi-Sudoku: Guinness World Record Attempt

Join a cooperative attempt to solve 281 connected Sudoku grids in Bučovice, Czech Republic.

About this event

Pavel Striz and HALAS are organising a cooperative attempt to break the Guinness World Record for the largest multi-sudoku puzzle. Participants will solve 281 interconnected grids with pencil and paper, including classic Sudoku and ten variants.

The attempt starts at 08:00 local time on Saturday 28 November 2026 in the Great Hall of Katolicky dum in Bucovice, Czech Republic. It may continue until Monday 30 November, but could finish earlier.

The organisers are seeking at least 40 players, ideally 60 or more. The event may be cancelled on 22 November if there are not enough registrations. Visit the official page for registration, practical details, and confirmation before making travel plans.

Visit the official event page