Normal sudoku rules apply. In addition, the following rules hold:
1. XV: cells separated by an X must sum to 10; cells separated by a V must sum to 5; all possible Xs and Vs in box 5 are given.
Repeat: all possible Xs and Vs in box 5 are given.
2. Kropki: a white dot indicates that the adjacent cells differ by 1; a black dot indicates that one of the adjacent cells is twice the other.
3. Disjoint groups: no number can repeat in the same position in 3x3 boxes.
4. Numbers cannot repeat in extra regions.
The logic path is intended to be discovered via coloring.
Puzzle link: https://f-puzzles.com/?id=y2n8ro35
Solution code: Row 4 of the completed puzzle.
on 10. December 2021, 18:41 by pipedreambomb
Wonderful! Please keep making more colouring puzzles. I really enjoy yours.
on 14. October 2021, 12:43 by uvo_mod
Labels angepasst.
on 14. August 2021, 21:44 by thoughtbyte
repeating the negative constraint for box 5
on 14. August 2021, 01:48 by koba1917
UGH! Amazing puzzle, but i totally missed the "all possible Xs and Vs in box 5 are given" part and thought I messed up due to the apparent deadly pattern. Only advice would be to make that a separate line so it stands out.
on 11. June 2021, 01:14 by ParaNox
That was an extremely satisfying ending, thank you for this puzzle. :)
on 6. June 2021, 16:06 by thoughtbyte
changed extra regions to cages
on 6. June 2021, 14:44 by Pibonacci
Nice puzzle, the coloring approach worked well, sometimes these puzzles are hard to work through that way without multicoloring, this one didn't have that issue.
I would suggest marking the extra regions as 9-sized cages instead, since the gray background interferes with the coloring while cages would not.
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thank you, I appreciated the feedback. changed to cages
on 3. June 2021, 04:22 by panthchesh
Very nice coloring puzzle :)
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thank you very much!