Normal sudoku rules apply:
- every row, column and 3x3 box must contain digits 1-9 exactly once
additionally:
XV rules:
- All orthogonaly adjacent cells separated by V sum to 5, all V clues are given (negative constraint apply)
-All horizontally adjacent cells separated by X sum to 10 (negative X constraint apply only horizontally)
Kropki rules:
-All vertically adjacent cells separated by black dot have a ratio 1:2 (negative black dot constraint apply only vertically)
- cells separated by white dot have difference of 1 (consecutive), only white dots laying on thick line between boxes are given
Solution code: Row 4 (left to right) and column 4 (top to bottom), 18 digits, no spaces
on 19. October 2023, 21:31 by snuuba
Thanks, good fun
on 17. December 2020, 02:58 by panthchesh
Thanks for the puzzle! :)
on 17. December 2020, 01:22 by Ragna
Nice one :-)
on 15. December 2020, 15:32 by fuxia
Finally a XV that even I can solve. :) Very nice, thank you!