Logic Masters Deutschland e.V.

Norinori Killer Sudoku

(Eingestellt am 9. Februar 2021, 01:00 Uhr von SudokuExplorer)

Standard killer rules apply.
Digits cannot repeat in cages, and sum to the number in the upper-left corner of the cage.

Cages are subject to a Norinori colouring, as follows:
Shade exactly two cells in each cage.
Each shaded cell is orthogonally adjacent to exactly one other shaded cell.
Moreover each shaded cell is an odd number.
See Nikoli link for an example.

You can try this on Penpa+ or F-Puzzles. Enjoy!

Lösungscode: The unshaded cells in rows 1 and 4 (left to right).
                          The shaded cells in columns 1 and 8 (top to bottom).

Zuletzt geändert am 2. August 2021, 02:52 Uhr

Gelöst von bigger, TimE, cdwg2000, NikolaZ, PixelPlucker, Jesper, Dina, DJdoku, r45, rimodech, juventino188, Bobby, Quarterthru, panthchesh, euklid, Eggr, harrison, LucyH, polar, skywalker, bernhard, freyad, ... Duarte, cfop, Uhu, JamesMLV, Mark Sweep, misko, mlkj, Tilberg, Ours brun, michaal94, ParaNox, zorant, hurrdurr, MatthewDonovan, Gregocon, Vebby, MavericksJD, Dentones, IvanZ59, sudokunoob, Krokant
Komplette Liste


am 17. Mai 2022, 23:52 Uhr von Krokant
Bringing parity into the mix works so well. This is a lovely, lovely puzzle. :)

am 6. September 2021, 17:20 Uhr von SudokuExplorer
@MatthewDonovan: You're welcome! Thanks for giving it a go, and well-done in working out the tricky and intertwined logic. I'm really pleased you had as much fun solving it (as well as my classical Norinori), as I did setting them :-)

am 6. September 2021, 04:13 Uhr von MatthewDonovan
Thank you! This puzzle was brutally difficult, but each step was absolutely beautiful once I found the next bit of logic. 10/10, thank you, SudokuExplorer! :)

am 2. August 2021, 02:52 Uhr von SudokuExplorer
Fixed tags/labels

Zuletzt geändert am 15. April 2021, 18:09 Uhr

am 15. April 2021, 18:09 Uhr von SudokuExplorer
@Aspartagcus: I agree it was pretty satisfying to form a coherent ruleset, and then a hopefully interesting puzzle which combines logic from both puzzle types. I really enjoyed Momiji's Norinoris uploaded by cdwg2000 and then forming my own ones, which was the key reason for making this sudoku. I'm pretty much an amateur when it comes to other pencil puzzles, but maybe if I fall in love with the logic in another pencil puzzle type, then maybe I'll create another hybrid puzzle. Good luck in setting your next hybrid puzzle! :-)

am 15. April 2021, 00:42 Uhr von Aspartagcus
@SudokuExplorer: I didn't mean another nori nori sudoku, you can go for some other puzzle types to create hybrids with. I find it very satisfying to set such puzzles, I should make another one. :)

am 18. Februar 2021, 00:16 Uhr von SudokuExplorer
Thanks a lot for the lovely feedback. I'm really pleased that you enjoyed the solution path which had a few tricky steps, so well done for getting through them :-)

Regarding setting another Norinori killer sudoku, I'm not too sure I'll be able to set one to this standard. However it is likely that I will set another Norinori (I have an idea for an alternative break-in).

Zuletzt geändert am 16. Februar 2021, 11:26 Uhr

am 16. Februar 2021, 11:25 Uhr von Aspartagcus
This was very hard, but that also meant that you got happier than usual each time you figured out the next step.
Enjoyed it a lot!
Pencil puzzle sudoku hybrids are awesome, hope you'll set some more. :)

Zuletzt geändert am 15. Februar 2021, 16:29 Uhr

am 13. Februar 2021, 02:39 Uhr von AsilG
The variety of logic needed was pretty cool!

Thanks AsilG, I'm glad you liked it this combo :-)

am 12. Februar 2021, 00:44 Uhr von SudokuExplorer
Thanks! I'm pleased you enjoyed the logic :-)

am 11. Februar 2021, 03:17 Uhr von CaneloC
Incredible puzzle!!!

Zuletzt geändert am 10. Februar 2021, 16:16 Uhr

am 10. Februar 2021, 16:14 Uhr von SudokuExplorer
@panthchesh + @Bobby + @Dina:
Thanks for the kind feedback and for giving it a go! I did remove a few more cage totals after retesting, so I'm really pleased you all enjoyed the logic in this variant. :-)

am 10. Februar 2021, 01:14 Uhr von panthchesh
Wonderful puzzle! :)

Zuletzt geändert am 10. Februar 2021, 00:13 Uhr

am 10. Februar 2021, 00:06 Uhr von Bobby
Wow! There's enough beautiful logic for three puzzles let alone one!
Thanks for making it!

am 9. Februar 2021, 16:54 Uhr von Dina
Very intricately designed! Loved the logic! :-D

am 9. Februar 2021, 16:05 Uhr von SudokuExplorer
@Jesper + @TimE: Thank you! I'm really pleased you both enjoyed the interaction in this combo. :-)

am 9. Februar 2021, 16:02 Uhr von SudokuExplorer
@cdwg2000: Thanks! I'm really glad you enjoyed it, especially since you introduced Momiji's lovely Norinoris. :-)

am 9. Februar 2021, 13:40 Uhr von Jesper
Great puzzle! Well combined.

am 9. Februar 2021, 04:30 Uhr von cdwg2000
Very beautiful design, I like it very much, thank you!

am 9. Februar 2021, 03:05 Uhr von TimE
Wonderful puzzle! The parity logic combining with Norinori was very entertaining!

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