Trees and Tens
(Published on 31. July 2023, 16:57 by Arlo Lipof)
Rules:
- Sudoku. Normal Sudoku rules apply.
- Trees and tents. For each tree (represented by a green cell) in the grid, place one tent which is orthogonally adjacent to it. Tents may not be orthogonally or even diagonally adjacent to one another but may be adjacent to multiple trees. Black clues on top and on the left of the grid indicate the number of tents in each row or column.
- Tens. Each pair of trees and tents sum to 10. All such pairs are given, i.e. no other pair of orthogonally adjacent digits sum to 10.
- X-sums. Red clues at the bottom and on the right of the grid are X-sums indicating the sum of the digits of the first X cells in their row or column, where X is the digit placed in the first cell in that direction.
Please enjoy!
Solution code: Row 4 then Column 3 (18-digit number without spaces)
Comments
on 4. August 2024, 16:06 by garycblack
Very cool puzzle. I was stuck for a bit until I re-read the negative X constraint.
SudokuPad solution link:
https://sudokupad.app/ew4ick9f9o
on 10. July 2024, 17:10 by wuc
Awesome setting thx.
on 28. January 2024, 03:31 by cascadeshiker
Wow! That was a joy to solve. Nothing particularly difficult. The constraints worked beautifully together. Many thanks.
on 19. October 2023, 18:50 by LibardiA
Nice! Very smooth and enjoyable logic flow. One thing though, the ctc version doesn't include the solution. Here's a version of the link that does (using the "new solution link" button):
https://app.crackingthecryptic.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
on 17. October 2023, 16:11 by Rollo
A very nice combination and an excellent imlpementation :-)!
A: Thank you very much, Rollo!
on 26. September 2023, 19:45 by Nytheris
Still new to variant sudoku but this is my favourite I've done so far. Took me a while but was very enjoyable.
A: Many thanks!
on 17. August 2023, 01:04 by anyeyeball
Fantastic puzzle and brilliant rule set. Definitely an all time favorite.Thank you!
A: Wow, what a compliment. Thank you!
on 7. August 2023, 23:25 by Syzygy
Thank you for the puzzle!! I very rarely get to attempt something with negative constraints, so when I do I feel like I’m some kind of genius!
Thank you so much!
A: Great to read that you had fun, thanks!
on 6. August 2023, 21:02 by samuel1997
Approachable and interesting puzzle. I enjoy solving it very much! Thank you.
A: Thank you for solving it!
on 2. August 2023, 19:22 by Cid
Very nice puzzle. Completely forgot about the negative constraint and became utterly stuck xD After that it was very simple. Thank you :)
A: Proof that the negative constraint is crucial in this puzzle. ;-) Thanks!
on 1. August 2023, 12:13 by michael_787
I enjoyed this ruleset very much. An easy puzzle and fun to solve.
A: That was my goal, many thanks!
on 1. August 2023, 08:18 by Fizz
What a fun puzzle, thank you! I really enjoyed this one.
A: My pleasure, thanks!
on 1. August 2023, 02:00 by Ratfinkz
Lovely little puzzle, thank you!
A: Thanks!
on 31. July 2023, 18:27 by nunc
Love the tree-tent-ten-combo. Especially that you managed to make it w/ a negative constraint.
Thank you very much!
A: Thank you for the kind words. Glad you liked it!
