I first composed the text in Russian, and then connected the translator. In Russian, the word azure is written with the letter L. I should have changed the letters L to A, but it's too late. You need to start with azure, as stated in the rules.

Unfortunately, Russians cannot browse websites with the .com domain. Upon prior request, I was allowed to use only the LMI website.
I'll try to explain it without following the link. If you turn the sheet 180 degrees, the letters R become legible (not rotated). Then FIFIR and RUBIA can be entered by looking at the correctly oriented letters R.

Fine ! And about pb 6, again :
If you have 4 aligned points A, B , C, D: is it possible to have segment AC (of length 2) in the line, and later, segment CD (of length 1) also in the line, or is it forbidden, because "segments of the same color do not touch each other)?

If the segments AC and CD lie on the same straight line, then these are segments of the same color. They touch each other at point C, which is prohibited by the rules.

I can't see the image anymore but you can mail it to me (prasanna16391@gmail.com) or send on discord or whatever, I'll forward to Riad.