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Main Question or Discussion Point
Hello everyone,
I was wondering if you could advise me a good puzzle I could give to my engineering-major friends, something tough that they would break their brains on
. I was thinking of petals around the rose.
Any other suggestions are very much welcome!
I was wondering if you could advise me a good puzzle I could give to my engineering-major friends, something tough that they would break their brains on

Any other suggestions are very much welcome!