Logic Masters Deutschland e.V.

Toroidal XVI

(Published on 7. November 2021, 20:54 by LucyAudrin)

Normal Sudoku rules apply. Every pair of orthogonally adjacent cells that sums to 4, 5, 10, 15, or 16 is marked with the appropriate Roman numerals. The grid is toroidal; the negative constraint applies between rows 1 and 9, and between columns 1 and 9. The number outside the grid gives the sum of the indicated diagonal.

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Solution code: Row 9

Last changed on on 12. November 2021, 18:31
Solved by tenaliraman, Uhu, SKORP17, Playmaker6174, TroublesomeOrca, butch02, polar, pdabraham, Ragna, kublai, wilsig, SirWoezel, achim-t, fuxia, galgamer, ManuH, Phasius, ebbelwoi, spagheli, MB_Cyclist, haligonian, apendleton, flaemmchen, Crul, PinkNickels, lovely, asii
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Comments

on 13. November 2021, 22:58 by uvo_mod
Label ergänzt.

on 12. November 2021, 18:31 by LucyAudrin
Updated puzzle link, thanks fuxia

on 11. November 2021, 03:19 by fuxia
Very nice, as always. :) You can put a white circle with a white outline under the text clues to make them a bit easier to read.

on 9. November 2021, 20:12 by LucyAudrin
@Colonel Check carefully, it's easy to miss a negative constraint, especially in a toroidal grid.

on 9. November 2021, 14:47 by Colonel
I must have found an alternate solution. I have no mistakes, yet it is not taking my code as solved...

on 8. November 2021, 14:55 by pdabraham
Finally managed to finish one of Lucy's puzzles.

on 7. November 2021, 22:14 by Playmaker6174
Very beautiful puzzle, I really like how the negative constraint worked in this one ;)

Difficulty:3
Rating:95 %
Solved:27 times
Observed:8 times
ID:00087B
Variant combination Online solving tool
Sudoku, XV (Variant), Little Killer (Variant)

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Solution code:

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