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5X5 Problems, p1
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4X4 Problems, p1
6X6 Problems, p1
8X8 Problems, p1
Problems 2012-2015
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Maths for fun
Construct a regular pentagon with ruler and compass
Sieve of Eratosthenes
Sum of the integers is not -1/12
Modern (19th century) geometry
Crazy Suduko App
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Crazy Suduko App
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