This was a good challenge, and we got a lot of solutions to it. All your
comments show that you liked it very much. Thank you for this!
To make the full grid you need to stack together the three serpentine lines
- A, F, and H; they are highlighted in gray. It's possible to do in several
ways every of which, in fact, will lead to the same solution. We show one of
-- First click three times the line A, and then drag and put it on the light
grid in the midst.
-- Now click twice the line H, and also put it onto the middle pattern.
-- Finally, drag the line F and add it to the pattern consisting of the
lines A and H; no need to rotate it.
Immediately after that you will see the congratulation message and the
password. The snaky challenge is solved!
The solution is shown in the illustration above.