PentominonimotneP
(Published on 19. March 2024, 10:42 by FJL)
Normal sudoku rules apply.
16 pentominoes are hidden in the grid. They are not overlapping and two pentominoes of the same shape cannot touch, even diagonally. Digits cannot repeat within a pentomino. The small numbers in the corner of some cells, indicate the sum of the squares of the pentomino that cell belongs to. The grey circle does not belong to a pentomino.
The grey lines are palindromes - i.e. cells on an equal distance from the center of the line contain the same digit AND are part of pentominoes of the same shape. None of the cells along a palindrome belong to the same pentomino (but different palindromes can pass through the same pentomino).
Reflections and rotations of a pentomino does not count as changing the shape or type in this puzzle.
Penpa+: https://tinyurl.com/26u7bwpp
SudokuPad: https://sudokupad.app/xn41sccqjy
Solution code: Row 5
Comments
on 23. September 2024, 11:28 by Tacosian
Unfortunately I've come to the same conclusion as zzw and ClashCode. I wanted to find a way for the puzzle to work, but it doesn't.
on 1. May 2024, 21:09 by ClashCode
I agree with zzw, interesting idea but ends in a deadly pattern and neither solution is the code.
on 30. April 2024, 17:31 by zzw
I believe I've solved this puzzle (there's a deadly pattern at the end that can be resolved by changing one of the clues--I think changing <25 to <24 in r6c8 will keep most of the logic intact). However the solution code is not accepted, using either resolution of the deadly pattern.
Overall, it was a very nice puzzle, that resolves with surprisingly little information. The beginning was rather tedious for me, and I basically had to bifurcate through it, but after I managed to get the first handful of pentomino cells it became much more pleasant. It's definitely quite difficult--there's no way this is a 3/5, in my opinion it's a solid 5/5.
on 20. March 2024, 20:56 by FJL
Clarified the rules.
on 20. March 2024, 20:54 by FJL
Yes, they do. I will clarify that in the rules.
