Negative Arrows
(Published on 16. June 2024, 11:55 by damo_89)
Having set some nonsense involving arrows and doubler cells, time to set some more nonsense with negative cells. I think the difficulty is similar to previous Doubled Arrows.
- Normal sudoku rules apply
- Arrows: Values on an arrow sum to the value in the arrow's circle
- XV: Values on an X sum to 10. Values on a V sum to 5. Not all XV are necessarily given.
- Negators: There are 9 cells in the grid which are negators, one each in every row, column and 3x3 box, containing the digits 1 to 9 once each. Digits in a negator cell count as negative for the purposes of arrows and XV. E.g. a valid arrow could be 8 = 5 + 7 + (-4) if the 4 were in a negator cell.
TIP: Math involving negator cells and arrows can get tricky. It may be easier to rearrange the equation and think of the arrow circle + a negator cell = the sum of the other digits on the arrow. So 8 + 4 = 5 + 7 in the example above.
Solution code: Row 9
Comments
on 17. October 2024, 07:57 by damo_89
Added Modifier Cells tag
on 25. June 2024, 04:09 by agvard
Hard but doable without anything super fancy. Very enjoyable!
on 22. June 2024, 11:21 by LehanLehan
Beautiful logic, thanks for the puzzle.
on 20. June 2024, 15:51 by Perladel
Very well constructed!
on 18. June 2024, 03:27 by yttrio
Fantastic puzzle! I loved the way everything flowed from start to finish (despite me overlooking a seemingly unimportant clue for quite a while mid-solve).
on 18. June 2024, 02:53 by Nemefish
very interesting but not easy. Very grateful to be able to get a partial check along the way.
on 17. June 2024, 14:44 by Franjo
It took some time to find the entry to the solution path, but afterwards I could find so many nice interactions and deductions. It was a great pleasure to solve this masterpiece. Thank you so much for sharing.
on 17. June 2024, 14:29 by Snookerfan
Lovely! Thank you
