Anti-XV Kropki Pairs
(Published on 22. July 2023, 15:37 by gdc)
This puzzle combines kropki pairs with a negative XV constraint, i.e. adjacent digits cannot sum to 5 or 10. There is no negative constraint on black (or white) kropki dots.
I tried to keep this relatively simple by only using one negative constraint* and breaking up the coloring relatively early. Please let me know in the comments if you would like to see a more intricate version of this.
*most similar puzzles I've found also use negative kropki constraints.
Rules
- Normal Sudoku Rules
- Place the digits 1 through 9 in each empty cell. Digits must not repeat within the same row, column, or box.
- Anti-XV
- Digits in adjecent cells must not sum to 5 or 10
- Black Kropki Dots
- A black dot between cells indicates cell values with a 2:1 ratio. Not all dots are necessarily given.
Solution code: Row 1 (9 digits)
Solved by SKORP17, jalebc, Greg, by81996672, Xalothros, ficko, Calvinball, mcc, efnenu, arbitrary, Magnesium, flaemmchen, jseng, AN_not_IO, pepe74287, MarthaB, davidjshort, Banana, fuxia, michalil, ... Carolin, mezkur7, dingledork, zhergan, trashghost, dskaff, dmarcucci, humaLautema, chain.reader, KyubiBoy, PippoForte, KingIsulgard, Krisonium, Kyriaas, atomvic, Vitoca , Lodinn, asii, ranalloatl2
Comments
on 6. August 2023, 18:10 by Tingo
Very enjoyable puzzle. Thanks for setting and sharing!
