This is a Cipher Pentominous puzzle aka Coded Pentominous
Divide the grid into pentominoes (five-cell regions) so that no two pentominoes of the same shape (including rotations/reflections) share an edge. Each number in this grid represents a clue for a different letter/pentomino, all instances of a number must represent the same letter.
Solve in Penpa+ Answer check enabled. Use edge tab to divide the grid into pentominoes.
Solution code: Enter the letter associated with the pentomino occupying each cell in the row 3 and then row 6 from left to right. The answer code should have 20 letters.
on 3. September 2023, 11:43 by uvo
I disagree, the solution code is perfectly fine.
on 23. January 2023, 07:23 by dennischen
Very fun puzzle, but imo finding the solution code is a bit tedious.