City of Whispers
(Published on 21. January 2026, 15:18 by Jay Dyer)
Rules
- Normal sudoku rules apply.
- Adjacent digits on lines differ by at least 5.
- Digits outside the grid are scyscrapers clues. The clue equals the number of digits in that row/column visible from the clue's end, where higher digits block the view of lower digits behind them.
The conflict checker on the original sudokupad link was causing some confusion by not handling digits outside the grid properly. This was a quirk of the way I set it in sudokumaker, so I've replaced the link with a new one exported from Penpa+ to avoid this problem.
Play online in Sudokupad.
Solution code: Column 6
Comments
on 15. February 2026, 00:37 by StephenR
Characteristically ingenious. The way the rules are weaved together is so clever, thanks.
on 28. January 2026, 03:07 by Crusader175
Very cool puzzle!
on 25. January 2026, 13:04 by GeorgeTheToad2
I find skyscrapers daunting. However, I love your puzzles so much I had to give it a go. To my surprise it solved smoothly and fairly approachable. Thank you for another great puzzle.
on 24. January 2026, 22:34 by skuntsel
Very elegant and beautiful puzzle, as always! Quite easy after the break-in, except that skyscrapers are very tricky and treacherous if you’re not paying attention, slightly terrifying at times. Thanks for a great puzzle, Jay!
on 24. January 2026, 22:07 by Jay Dyer
Updated sudokupad link with better conflict checking.
on 23. January 2026, 20:04 by madhupt
An absolutely peach of a puzzle! Break-in is the main challenge after which it flows really smoothly. GW lines and skyscraper clues interact really well to give very interesting and crucial deductions. Thanks for sharing this cool puzzle.
on 23. January 2026, 01:41 by econtrout
I am generally not a fan of skyscraper puzzles, but this was excellent...Break-In logic was very cool! Something going on with the auto check.
on 22. January 2026, 14:34 by Franjo
Thank you very much for creating and sharing another beautiful puzzle with a wonderful break-in and an incredibly perfect setting.
on 22. January 2026, 14:32 by Statistica
Klasse Einstieg! Vielen Dank.
on 22. January 2026, 09:54 by Snookerfan
Very nice! After a tricky break-in a very smooth puzzle, so 3 stars seems fair. Thanks
on 22. January 2026, 06:50 by Piatato
Smooth and fun, thanks!
on 21. January 2026, 22:23 by Exigus
Brilliant. From the start it seems way too little to work with but then it just clicked and slowly started flowing. Thanks!
on 21. January 2026, 18:23 by gdc
Very enjoyable and closer to 3* in my opinion.
on 21. January 2026, 18:05 by Fool on Hill
Likewise great puzzle, solves beautifully: 3* for me
on 21. January 2026, 17:50 by Chilly
Super nice, Jay - and I would agree with qodec - prob 3* rather than 4.
on 21. January 2026, 16:30 by Qodec
Very cool. Not even that hard.
on 21. January 2026, 15:45 by Chanome
It's causing errors when solving in sudokupad. The skyscraper clues for some grids are turning red due to repetition. Do normal sudoku rules apply to the skyscraper as well? And what about the skyscraper at the corner. Please clarify in your rules. Thanks
