Enigmatic Code

Programming Enigma Puzzles

Tag Archives: by: Paul Tissier

Puzzle #16: Clever code

From New Scientist #3242, 10th August 2019 [link] [link]

Rashmi told us that she had to make up some codes, ones that preferably have a unique quality to them.

“For a four-digit code, I chose 2020, because it has two 0s, zero 1s, two 2s and zero 3s. I chose 3211000 for a seven-digit code.”

She then told us that she used the same idea for a 10-digit code.

What was this code?


Puzzle #13: Snail party

From New Scientist #3240, 20th July 2019 [link] [link]

Sam has four pet snails. She puts one of them at each corner of a square ABCD with sides 2 metres long. Being very friendly, each snail moves towards its neighbour, snail A to snail B, B to C, and so on, at all times pointing directly towards that neighbour. If each snail moves at a constant speed of 2 metres per hour, how long will it be before they meet?


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