Logic Masters Deutschland e.V.

Well, this might seem like deja vu for some of you. I recently published a puzzle with the same title, but which had a potential issue brought to my attention. After some quick investigation, I ultimately decided to deactivate that puzzle while I searched for a fix. Well, it became apparent to me no quick fix would present itself, as there were some underlying assumptions I made in the break-in that were simply incorrect. So I decided to just try setting it again from scratch :D


I truly apologize to anyone who invested a lot of time on the previous version of this to no avail. That said, this is, I think, a cleaner, more enjoyable puzzle overall, so I hope you're willing to give it a try. I hope you like it!

Rules:

• Draw a totally connected loop network through the centers of some cells, which may branch or turn, but may not have any dead ends. A clue outside the grid indicates how many times the corresponding line shape (i.e. a cross, branch, straight line, or turn) appears in the corresponding row or column, irrespective of the line shape's rotation.
• Divide the grid into non-overlapping tetrominoes such that every cell is part of a tetromino. Orthogonally adjacent tetrominoes may not be the same shape, regardless of rotation or reflection.
• The loop network must cross the perimeter of every tetromino exactly 3 times.

The puzzle:
Solve on Penpa (Includes answer check for the loop only)
Solve on Sudokupad (No answer check)

The five standard tetrominoes, ignoring rotation and reflections: