Logic Masters Deutschland e.V.

Here's another bonus edition that acts as a bright source of inspiration for the current (halted) project here. This following puzzle is directly inspired by my Rod of Eternal Coherence puzzle in the past in terms of the theme and vibe.


It's another occasion of where I utilized what I've learned from different constraints throughout my solving experience and combined many elements together to form a one whole refreshing puzzle.


The puzzle title came from one of my very favorite musical pieces out there.

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I initially put this at around 4 difficulty range over here, but I feel like most of the ideas in here should be rather clear for many solvers. For now, do enjoy the puzzle!


Rules:

- Normal Sudoku rules apply: every row, column and 3x3 box contains digits from 1 to 9 each once.

- Constraints in this puzzle include: Even Digit (blue diamond) and Odd Digit (red diamond), Clone Pair (yellow squares/yellow circles), Arrow (gray arrow with pink circle), Double Arrow (pink line with two end circles), Killer Cage, German Whisper (green line), Region Sum Line (thicker gray line).



Specific explanation for each constraint:

+ Even and Odd: The cell marked with a blue diamond contains an even digit, while the digit marked with a red diamond contains an odd digit.
+ Clone Pair: Two cells marked with yellow squares must contain the same digits; similarly, two cells marked with yellow circles must contain the same digits.
+ Arrow: Digits along a thin gray arrow sum to the digit in the pink circle cell attached to that arrow.
+ Double Arrow: The sum of the digits along the pink line that has two pink circles as its endpoints must equal to the sum of two digits in both circles.
+ Killer Cage: Within a cage, digits sum to the small number written in the top left of that cage.
+ German Whisper: Along the green line, two adjacent digits have the difference of at least 5.
+ Region Sum Line: Box borders divide the thicker gray line into smaller segments with the same sum of digits along each segment.



Puzzle:  F-puzzle  -  Penpa plus  -  Sudokupad

Good luck and have fun solving!