Hollowed Out
(Published on 27. October 2026, 13:27 by Jorava)
Another little Halloween trick or treat!
Made for the CTC discord October Monthly Prompt "Into the Woods".
Solve in Sudokupad (original dark brown tree)
Solve in Sudokupad (grey tree for improved pencil mark visibility)
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Rules:
Normal sudoku rules apply. Place the digits 1-9 in every row, column, and 3x3 box.
German Whispers: Adjacent digits on a dark brown line differ by at least 5.
Solution code: Column 2
Comments
on 28. October 2026, 11:56 by Jorava
Thanks everyone for the feedback! I've improved the visibility on both versions, while trying to keep the "right feel" intact. If anyone still has issues with seeing pencil marks, I recommend testing if turning "Outlines on digits" on or off helps (settings ->visual).
on 28. October 2026, 07:11 by Mozart40
Nice puzzle. But even the visual optimized Version is still a nightmare for phone users with small screens like me. But fair enough it match the topic ;D
on 27. October 2026, 20:13 by Vaurien
Really fun puzzle, but I will admit even the grey lines were still too dark, making scanning a bit difficult. Thinner lines may have fixed that.
on 27. October 2026, 17:44 by CarnacTheMagnificent
Thank you for the Halloween puzzle!
on 27. October 2026, 14:43 by Babsi132
Thanks for setting, I really enjoyed the puzzle!
on 27. October 2026, 14:40 by Jorava
Grey version rules no longer refer to a "dark brown line".
on 27. October 2026, 14:09 by Jorava
Added a grey tree version due to feedback.
on 27. October 2026, 13:56 by PinkNickels
Puzzle itself was fun, but the black, thick lines really aren't ideal for notation visibility.
