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Dublin: 16 °C Sunday 25 June, 2017

#Gary McGuire

# gary-mcguire - Yesterday’s News

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# gary-mcguire - Tuesday 10 January, 2012

From The Daily Edge Can't get harder than this: Sudoku puzzles must have 17 clues Groundbreaking

Can't get harder than this: Sudoku puzzles must have 17 clues

It was a Dublin mathematician who finally solved this quandary. Yay!