It being a weekend...(Disjoint Arrows Sudoku)
(Published on 15. August 2021, 05:00 by glum_hippo)
Disjoint-group Sudoku with Arrows
F-puzzles link.
SudokuPad link.
The usual Sudoku rules apply, i.e., in each row, column, and 3x3 box there must be exactly one each of the digits 1-9.
Disjoint groups: No digit may occupy the same position relative to two different boxes. So for example the middle digits in all 9 boxes (R2C2,R5C5,R5C8,R8C8 etc) must be distinct, as must the top left corners, the right edge cells, etc.
Arrows: The digits along each arrow must sum to the digit in the circled cell. Digits may repeat along an arrow if permitted by other rules.
Solution code: The digits of the first column, then those of the last column (18 digits total)
Comments
on 6. August 2024, 13:15 by glum_hippo
Add SudokuPad version
on 14. November 2021, 12:30 by Mark Sweep
Brilliant! The disjoint sets are actually used very well in this puzzle.
on 20. August 2021, 20:45 by purpl
One of my favourite beginnings to an arrow puzzle.
on 16. August 2021, 14:54 by cdwg2000
Very nice,Beautiful interaction between the arrow rule and the "disjoint" rule！
