bob012345's latest activity

I think "exactly" is a clear enough condition here. It means that the result is three equilateral triangles and nothing else.

Right. If we were to take it to its extreme. But the problem itself implies that 3 matchstick touching end-to-end counts as a valid...

Sorry but this puzzle is not poorly written, it comes from a 1976 book by a well established puzzle authority, Pierre Berloquin. The...

As I read it, the condition is to form exactly three equilateral triangles without removing any matches. Moving three so they don’t...

The exact wording of the source is as follows; “Can you change the position of four matches so that exactly three equilateral triangles...

Funny, but of course the final form of three equilateral triangles must use all the matches.

TL;DR: A little geometric puzzle with matches. This puzzle is adapted from 100 Geometric Games by Pierre Berloquin. Twelve matches are...

I think the point is someone who has solved such a problem already knows what journal to publish it in. If you don't know which journal...

Thank you @Greg Bernhardt and all who voted for me. I am honored.:smile:

It's been another incredible year spent on PF! Thanks to all contributing members for making it special! This year we're coming upon 25...

At least you didn't screw up. I've just noticed multiple errors in my image. Glad I said it would take me a week to count all these...

My artwork isn’t as pretty but here it is anyway. Each size triangle is represented only once. There are four shapes out of 22 that are...

Wondering if this is how Garret Lissi got his start. {edit} I finally counted 160....

Perhaps so. I have yet to make a simple regular hexagon work but one can see the answer by inspection!