Mensa's Most Difficult Maths Tests provides an exceptional challenge for even the most adept of puzzlers.
This full-colour book features a huge variety of numerical brainteasers that will test even the most mathematical of minds. With puzzles ranging from the familiar – such as kakuro and killer sudoku - to the exotic – such as sum skyscraper and calcudoku – this fiendish puzzle book will keep you entertained for hours. Are you up to the challenge?
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