Logic Masters Deutschland e.V.

This puzzle was inspired by wisty's Battleship Deconstruction. However, instead of using Battleship to build a Sudoku, I've used Pentopia to build a Yajilin. I hope you enjoy the puzzle!

• Each cell in the grid is exactly one of four cell types, as follows:
  1. Pentopia clues (blue, given)
  2. Pentominoes (to be determined)
  3. Shaded cells (to be determined)
  4. Loop cells (to be determined).
  In other words, you will locate both pentominoes and shaded cells (which are distinct from each other), and draw a loop through all non-clue, non-pentomino, non-shaded cells.
• Pentopia: place some of the given pentominoes in the grid so that no pentominoes touch, even diagonally. Each pentomino may be rotated or reflected, but must not repeat in the grid (where rotations and reflections are considered the same shape). The given clues (blue) indicate all the directions (up, down, left, and right) where the nearest pentominoes are located when looking from that cell. (To clarify, if a clue has multiple arrowheads, the distance to the closest pentomino cell must be the same in each direction, and pentominoes cannot overlap arrow clues.)
• Yajilin: shade some non-clue and non-pentomino cells in the grid, and draw a loop that travels orthogonally through the centers of all remaining (non-clue, non-pentomino, non-shaded) cells. Shaded cells cannot share edges with each other (although they may be adjacent to clue cells or pentominoes). Some pentominoes contain arrows with numbers: these count the number of shaded cells in the indicated direction. Note that any numbered arrows in pentominoes will rotate or reflect together with its pentomino when placed in the grid.