Underling
(Published on 9. January 2026, 22:57 by jwsinclair)
Underling, by James Sinclair
Normal sudoku rules apply, and all clues are standard.
Cages: digits cannot repeat within a cage.
Arrows: the sum of the digits along an arrow is equal to the digit in the connected circle, and these digits can repeat if allowed by other rules.
German whispers: along the green line, digits differ from their neighbors by at least 5.
Digits in cells with a shaded circle are odd.
Digits in cells separated by a white dot are consecutive.
SudokuPad
For more of my puzzles, check out Artisanal Sudoku, where I publish a new set of (generally pretty approachable) variant sudokus every week.
Solution code: row 6
Comments
yesterday, 04:11 by virus_dave
Oh man, what a puzzle. I felt completely stuck over and over, but then each time one tiny insight or question would chip away at it until it was clear...
Very very nice ????
on 11. January 2026, 15:53 by hapoel
took me an embarrassingly long time to solve but once I did I decided to sign in to be able to comment on this masterpiece.
best puzzle i ever solved by far!
on 11. January 2026, 12:00 by marcmees
Amazing construction. Thanks
on 10. January 2026, 18:11 by etoler
What this puzzle did to me might violate the Geneva Conventions. Beautiful, beautiful construction.
on 10. January 2026, 16:49 by Exigus
Very very nice. Lots of tricky little (or not so little) deductions that slowly lets the picture emerge. Thanks!
on 10. January 2026, 12:04 by Snookerfan
Amazing puzzle! Took me some time to say the least, thanks
on 10. January 2026, 03:53 by Elliott810
Brilliant construction! A characteristic Sinclair. Thank you:)
on 10. January 2026, 00:02 by arctan
great puzzle, so many wonderful deductions that are obvious in retrospect but require thinking about the puzzle in particular ways and asking the right questions, absolutely loved it
