Pieces of puzzle

If you have doubts about what the puzzle should look like, then see this:

Spoiler

No tricks.

@Azza - Why did you repost this level as I played it yesterday?

@Meko Guy I made a slight change that makes the use of a piece compulsory. Before it was apparently optional in the building of the puzzle.

@Azza - Thanks - authors generally explain why a repost occurs. Ie: shortcut was found, level wasn't hard enough, etc