You may also like

problem icon

Links and Knots

Some puzzles requiring no knowledge of knot theory, just a careful inspection of the patterns. A glimpse of the classification of knots, prime knots, crossing numbers and knot arithmetic.

The Invertible Trefoil

Stage: 4 Challenge Level: Challenge Level:2 Challenge Level:2

A good start is to make the knots you can see on the problem page.

The thicker the string the easier it is to see the 'shape' of the knot.

Rope is very good, and a tube length can be joined to make a complete circuit.

This is good new mathematics so be prepared to invest a bit of time getting equipped so you can enjoy exploring these ideas.