A-Q 2 Z
(Published on 30. May 2026, 18:09 by Oddlyeven)
Rules: Normal Sudoku rules apply. Put the digits 1 to 9 once each into every row, column and box.
Doublers: One cell in each row, column and box is a doubler. The value of a doubler cell is equal to twice its digit. Each of the digits from 1 to 9 appears once in a doubler cell.
Anti-Quads: A digit in a black circle means that none of the four surrounding cells contain that value.
Zipper Lines: Values an equal distance away from the center of a lavender zipper line sum to the value in the centre of the line (marked with a circle).
Links:
SudokuPad: https://sudokupad.app/pch5064ywu
Solution code: Row 5, left to right (9 digits).
Comments
on 6. June 2026, 07:48 by IAmNotAFed
a true delight. I normally stick to 2* puzzles and this felt very approachable. The logic flows quite nicely. Very enjoyable!
on 5. June 2026, 11:37 by GandalfLeRouge
Very cool puzzle! Forced me to think outside the box, but very nice nonetheless!
on 4. June 2026, 13:58 by jez9999
The doublers screwed with my head! Tough break-in as a result and one point I almost had to bifurcate to figure out one of two digits. Definitely a 4 or 5 star difficulty.
on 2. June 2026, 17:50 by pmays123
Great puzzle! I especially enjoyed the break-in
on 2. June 2026, 16:06 by Kattorzeh
The Anti-Quads constraints just works perfectly. thanks for this amazing sudoku!
on 1. June 2026, 17:53 by Exigus
Very cool, thanks!
on 31. May 2026, 10:21 by Snookerfan
Beautiful! Very nice break-in and a bit trickier than 3 stars overall for me. Thanks
on 30. May 2026, 18:36 by Playmaker6174
Lovely and fun puzzle with clever use of the available constraints, I enjoyed the solve overall! :)
