Split the Sums
(Published on 4. January 2026, 10:00 by palpot)
This puzzle was created for Scojo's weekly setting prompt featuring "Regional Constraints" and "Tentropy Lines".
I hope you enjoy solving it!
Solve online: SudokuPad
Rules:
Normal sudoku rules: Place the digits 1 to 9 in each Row, Column, and 3X3 box.
Global Constraints:
Regional Constraints: Each (local) constraint type may contain no repeated digits anywhere in the puzzle.
Meta Renban: The digits along each line must sum to a unique number, and the sums of these lines must form a set of consecutive numbers. This refers to all line types combined.
Local Constraints:
Tentropy Lines: Every set of 4 adjacent digits on a Peach Tentropy Line must contain a digit from each of the X-pair (ten-pair) subsets of {1,9}, {2,8}, {3,7}, and {4,6}. A 5 may not appear on a Tentropy Line.
German whisper: Two cells connected by a Green line must have a difference of at least 5.
Modular lines: Any set of three sequential cells along a Teal modular line contains one digit from (1,4,7), (2,5,8), and (3,6,9).
Parity line: Adjacent digits along the Red line have a different odd/even parity.
Solution code: Column 2 digits from top to bottom.
Comments
on 9. January 2026, 22:55 by War
Wow amazing puzzle
on 5. January 2026, 02:26 by Exigus
Incredible journey with lots of discoveries. Loved it! Thanks!
on 4. January 2026, 12:52 by Snookerfan
Fantastic puzzle! I really love the amount of logic there is to discover before actually starting the puzzle. No spoilers here, so I have to be vague. Thanks!
