| Page 11 | plus.maths.org

Puzzles

Hint

Puzzle page

Browse the Plus puzzles

Puzzle page

Puzzle page

Solve the puzzle and eat the nuts!

Puzzle page

Cushion ball

Puzzle page

Puzzle page

From September 1999 onwards, PASS Maths is joining forces with its sister site NRICH to offer many more puzzles changed regularly on the 1st of every month.

The Lunar Leap

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Maths in a minute

Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.

A geometry for strings

If, as string theory suggests, the world is made of strings, then what does that mean for a geometry of points? Find out more in this video.
Phantom jams

How to unjam traffic.
Mysterious 6174

Start with your favourite four-digit number, follow these simple steps, and you'll never guess what happens next!
Looking for love?

Find out how OKCupid's algorithm works.
Pure maths in crisis?

Proof is the essence of mathematics. But is the standard of proof in research maths really as high as mathematicians would like to believe?

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