bob012345's latest activity

I think the author knew his target audience and generally what they would assume from his setup of the puzzle. And it takes some skill...

I think the difference is whether the phrase "exactly three equilateral triangles" is taken alone versus in the context of the puzzle...

One more solution with three congruent equilateral triangles.

Here is a schematic of the puzzle. So, my solution is translate BC northeast by a small amount transate DE southeast by a small...

That’s adds to the class of figures in post #15 which I first considered. An interesting question is how many of these types of figures...

That’s what I first thought and thus the small figures above in post #15. But something bothered me and I avoided looking at the book’s...

When I saw the thread title, I thought it might be about match stick rockets. My friends and I were into them during about 5th-6th...

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...