These puzzles appeared in Issue 03 of the magazine.
You start at A and are allowed to move either to the right or upwards.
How many different routes are there to get from A to B?
Source: Thinking Mathematically by John Mason, Leone Burton & Kaye Stacey
It was once claimed that there are 204 squares on a chessboard. Can you justify this claim?
The answers to these puzzles are available here.
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Come to the issue 16 launch partyCelebrate the latest issue with us in London on 28 November
Read Issue 16 now!Fields medals, iconic intersections, and things with silly names coming your way in our brand new issue! Plus all your favourite puzzles & columns.