Posted on September 02, 2015 Anti Counterfeit MeasuresInteresting patterns printed on most banknotes to deter counterfeiting.
| Posted on August 12, 2020 There are many ways to skin a catSolving problems in different ways (and optimization).
| Posted on November 23, 2016 Grazing in a circular fieldHow long a rope do you need to allow a goat to graze half a circular field, if it is tethered to the circumference?
| Posted on February 05, 2019 AIME Math PuzzleA fun little problem from a past American Invitational Mathematics test.
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