Yes, I know Sudoku isn’t really maths, but anyone interested in puzzles might want to know about this event, held in Manchester next week.
The UK Puzzle Association is a non-profit organisation that selects the UK teams for the World Puzzle Championships and World Sudoku Championships, which this year will be held in Kraljevica, Croatia in October. The UKPA’s website is here, and they clearly know their puzzles, since they had nice things to say about PuzzleBomb.