1080° (Quadruples sudoku, by Raumplaner & Qodec)
(Eingestellt am 14. Juli 2025, 19:35 Uhr von Qodec)
Posted on behalf of Raumplaner, who created the first version of this puzzle, which had two additional quadruple clues in box 5. We both wondered if it was possible to find a version without, and I was lucky enough to find one. This is what you see below.
- Sudoku: Each row, column, and region indicated by thick borders in the grid must contain the digits 1 to 9 once each.
- Quadruples: Digits in circles must appear at least once in the four surrounding cells.
You can play this puzzle online using Sudokupad: https://sudokupad.app/6i5it6u94z
Lösungscode: Row 5. I.e. the 9 digits in row 5 from left to right, for example: 123456789
Kommentare
am 24. Juli 2025, 15:11 Uhr von Blashyrkh
Well that was weird. And great! Probably the best pure quad puzzle I've seen.
am 22. Juli 2025, 21:20 Uhr von Djirt
Спасибо, отличная головоломка!)
am 20. Juli 2025, 09:39 Uhr von Phistomefel
I loved the logic in this one. Thanks for constructing this gem, Raumplaner and Qodec!
am 18. Juli 2025, 09:13 Uhr von SocratesRanz
A very interesting use of quadruples. Thank you!
am 17. Juli 2025, 17:06 Uhr von sfield
I really enjoyed the puzzle. Very difficult. Even after I figured out the main trick, that only just got me started on a long journey.
am 17. Juli 2025, 06:49 Uhr von RedBarchetta
Ditto to all the praise - well done.
am 15. Juli 2025, 23:28 Uhr von matthew.v
Very fun to unravel!
am 15. Juli 2025, 23:10 Uhr von AnebodaSlatorp
Clever, fresh and fun
am 15. Juli 2025, 22:16 Uhr von Exigus
Amazing construction and a joy to solve. Thanks!
am 15. Juli 2025, 20:27 Uhr von Franjo
Gorgeous puzzle, marvelous setting. Thank you very much for creating and sharing this beauty.
am 15. Juli 2025, 18:23 Uhr von Playmaker6174
It's honestly hard to pinpoint my feeling throughout this puzzle... let's just say it's a wonderfully weird experience x)
Anyway, well done on actually forcing a unique solution out of this structure!
am 15. Juli 2025, 11:45 Uhr von Snookerfan
Crazy and fun puzzle! Thank you
am 15. Juli 2025, 11:13 Uhr von fuxia
It's like playing billiard with digits. Good fun, thank you both!
am 15. Juli 2025, 05:21 Uhr von rameshsrivats
Full fun
am 15. Juli 2025, 01:55 Uhr von tallcat
Very fun!!
am 14. Juli 2025, 23:16 Uhr von Ambrose
Very intricate!
am 14. Juli 2025, 23:00 Uhr von madhupt
Stare and eliminate and slowly but surely it unravels. Not easy, but good fun.
am 14. Juli 2025, 22:18 Uhr von avishai
Thank you! It was fun watching everything unravel!
am 14. Juli 2025, 21:24 Uhr von Piatato
Cool, and good job :D
am 14. Juli 2025, 20:45 Uhr von Bellsita
Weird puzzle. Very impressive construction!
