Killer Octopus
(Published on 12. February 2024, 14:22 by ThePedallingPianist)
Both of these have been good fun to explore and to set and I recommend trying both. I reckon this "Octopus" ruleset has a lot of legs...
Other Octopus Puzzles:
- Orla The Octopus (Zipper, Ziffer, Mulziplier and Zivider tentacles)
- Killer Octopus (Same Difference tentacles)
- TENtacles (Ten Line tentacles, puzzle by Marty Sears)
- Squidshoku (Entropic and Modular tentacles)
Normal sudoku rules apply.
Digits in a cage must sum to the given total.
Octopus rules apply. I.e. draw 4 lines that must:
- not cross or overlap anywhere except r5c5, where they all intersect;
- have 180-degree rotational symmetry around r5c5;
- visit exactly 2 cells on the edge of the grid, which are the beginning and end of the line;
- all be the same length (in no. of cells passed through).
The 4 lines are "Same Difference" lines. I.e pairs of adjacent digits on a line must all have the same difference, though this difference may be different for different lines.
Solution code: Top row, left to right
Comments
on 24. May 2024, 19:43 by DavidH
Fantastic puzzle. Almost gave up trying to find the break-in, but after that the logic flowed smoothly.
on 1. May 2024, 10:48 by ThePedallingPianist
Revision made
on 1. May 2024, 10:47 by ThePedallingPianist
Links to other Octopus puzzles
on 11. March 2024, 16:21 by blackjackfitz
We want more octopi! Very fun puzzle, a little tricky with the break in and then the rest unfolded pretty smoothly.
on 11. March 2024, 04:15 by marty_sears
This was amaaazing. I think I even preferred this a little bit more than the other octopus puzzle, as this ruleset felt a bit cleaner and simpler and thus a bit more elegant. The placement of the 5 cage is sheer genius and the work it does is remarkable. Still can't believe only 4 small cages are needed to make this grid have a unique solution. It's a miracle I tells ya
on 4. March 2024, 00:38 by ThePedallingPianist
Version without background image added
on 15. February 2024, 15:16 by ThePedallingPianist
Added background image
on 12. February 2024, 16:08 by Puzzle Weasel
That was amazing! It felt like so little information given in the clues, yet it unfolded beautifully. Very original feeling logic too. Thank you!
on 12. February 2024, 15:45 by sanabas
a much easier version with surprisingly different logic. Very elegant.
