Beer and brains meet together at Puzzled Pint which sees teams tackle challenges and compete with other players from around the world.
The event first started in Oregon, USA in 2010 by a group of friends who wanted to create and solve puzzles together and it has since spread to 17 countries, including Australia, South Africa and the UK.
Alongside the Norwich event, there are also similar ones in Edinburgh, Leeds, London and Manchester, and it happens around the world on the second Tuesday of the month with the same challenges.
Each month, there is a different theme and the September one was Dimensions with four puzzles to be solved in 1D, 2D, 3D and 4D.
Alina Sandu, one of the volunteers who organises the city event, said: "It is a monthly event that takes place in a pub with teams of one to 10 and it is different from your normal word searches or jigsaws, and is usually a bit more complex, so you may get a cryptic crossword which needs to be translated with Braille code or you may need to cut out different shapes.
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"We launched in January and we get 40 to 50 people that come along each month and the puzzles take from 30 to 90 minutes to complete them all."
The Norwich Puzzled Pint September event took place at the Louis Marchesi pub in Tombland, but there is a different venue each time, which has also included The Murderers, The Fat Cat Brewery Tap and Ribs of Beef.
Ms Sandu added: "We like to visit a new pub in Norwich each month as well - it is part of the concept of Puzzled Pint to explore the city you live in.
"It is a cheap and social event as you just need to pay for drinks at the bar and it gets people working together as well as the shared experience element of overcoming difficult clues."
Puzzled Pint is free to attend and the next Norwich event takes place on October 8 and you can keep up to date on the 'Puzzled Pint Norwich' Facebook page.
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