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Have a go at this
-themed Sudoku variation.
Sudoku around the clock
puzzle is back with a $2 million prize
Open your very own can of worms
Shifting large buildings
A proof with a hole
Duplex difference Sudoku
Mystery Christmas theft
Losing a pound
What would you do for a dollar?
The art gallery problem
Sometimes a piece of maths can be so neat and elegant, it makes you want to shout "eureka!" even if you haven...
Researching the unknown
Science is much stranger than fiction. It suggests that our Universe may just be one of infinitely many which...
Scared of swine flu? Avoid children!
New analysis of the 2009 swine flu pandemic in the US shows that the pandemic wave was surprisingly slow, and...
Blink and you'll miss it: The free kick in football (part I)
Free kicks will deliver much of the drama in the football world cup this summer. But how should strikers...
Play to win with Nim
In the game of Nim one player always has a winning strategy — it depends on an unusual way of adding numbers.
The philosophy of cosmology
Can philosophy help explain our Universe?
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