Each row, column, and region in the central 9x9 grid must contain the digits from 1 to 9 exactly once. Each region is a set of orthogonally connected cells and must be determined by the solver.
Renban: purple lines contain sets of non-repeating consecutive digits.
German whispers: digits along green lines must differ from their neighbor on the line by at least five.
Numbered rooms: digits placed on lines outside the central 9x9 grid (except for the corner cells) are numbered rooms clues and they indicate the digit which has to be placed in the Nth cell in the corresponding direction, where N is the digit placed in the first cell in that direction. For each clue, the first and Nth cells must be in the same region.
F-Puzzles: https://f-puzzles.com/?id=27a49yrw
SudokuPad: https://tinyurl.com/boxedroomssudoku
Solution code: The digits in the top left region, from left to right, top to bottom.
on 6. September 2023, 23:02 by thoughtbyte
Thank you for the feedback, I'm delighted that you enjoyed this one!
on 31. August 2023, 10:29 by MagnusJosefsson
Great puzzle! Very nice combination.
on 28. August 2023, 20:07 by wenchang
Very NICE Puzzle, Numbered rooms with whisper line is amazing. Spoiler alert! https://youtu.be/LPHEpuzz1tI
on 28. August 2023, 14:22 by alwaysbcoding
outstanding
on 28. August 2023, 01:40 by Agent
Cool puzzle, the numbered rooms interactions at the start were delicious!
on 27. August 2023, 16:23 by BHUNTER47
Absolutely excellent. Would make a great CTC feature.
on 27. August 2023, 14:26 by marcmees
Very nice. Thanks.
on 27. August 2023, 10:10 by Snookerfan
Brilliant puzzle and great series! Thank you
-- Thank you so much for this feedback, I'm delighted that you enjoyed these so far. The next puzzle in the series I think is by far the best yet, I'm excited to share it in a week or so!
on 26. August 2023, 22:42 by Lavender Gooms
Very, very enjoyable puzzle. Great work!
on 26. August 2023, 15:39 by samuel1997
Great puzzle!