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Nora is a master’s student at UCL, interested in applied maths. When not studying, you can (almost always) find her reading.

Unlocking sudoku’s secrets
Sara Logsdon looks to graph theory and abstract algebra for help on the puzzle page
Easy to state, hard to prove: The Collatz conjecture
90 years later, we're still unable to prove this surprisingly simple statement
Significant figures: Sofya Kovalevskaya
Nora Koparan tells the story of the first female professor of mathematics
On the cover: Some assembly required
Trippy brain massages from Sam Palmer's artwork on the front of Issue 16
Killing by numbers: the mathematics of warfare
A blast from the past. Modelling battle grounds from ancient Greece.
Top Ten: Mathematicians’ haircuts
The undisputed Top Ten Mathematicians' Haircuts!