Drawing Conundrums

[boofredlay]

I should have just burned them.

[TIG]

Here's the solution to the 5-room-puzzle...
It relies on the interpretation that you can intersect a line [wall] at its very end point, thereby allowing you to intersect three at once...

[Mike Lucey]

Mmmmmm ...... 'end point'

[gilles]

Un peu tiré par les cheveux...

[boofredlay]

Ah, so the single line is allowed a thickness, nice.

[david_h]

I think the bigger conundrum to those rooms is how does one get in?