Cave / Directionless Yajilin Permaculture
(Published on 21. August 2024, 09:00 by Agent)
Rules
- Divide the grid into 2 areas of orthogonally connected cells. One of them is a Cave, the other is a Directionless Yajilin.
- Cave:
- Shade some cells so that all unshaded cells are orthogonally connected, and all shaded cells are connected by other shaded cells to an edge of the Cave area.
- Clues cannot be shaded, and represent the total number of unshaded cells that can be seen in a straight line vertically and horizontally. Shaded cells and permaculture borders block vision.
- Directionless Yajilin:
- Shade some cells and draw a non-intersecting loop through the centers of all the remaining empty cells.
- Clues cannot be shaded, and represent the total number of shaded cells that can be seen in a straight line vertically and horizontally. Permaculture borders block vision.
- Shaded cells in the Directionless Yajilin area cannot touch another shaded cell orthogonally, not even across a permaculture border.
Example puzzle (9x9)
Main Puzzle (19x19)
Solution code: Column 15 (fifth-to-last) from top to bottom. Enter S for a shaded cell of the Cave, C for an unshaded cell of the Cave, X for a shaded cell of the Yajilin, and Y for any other cell of the Yajilin.
Comments
on 22. October 2024, 10:19 by KNT
One of my most fun solves in a long time
on 21. October 2024, 22:28 by sfushidahardy
Without a doubt the hardest/most intricate puzzle I've solved to date! Worked on it over three days, but loved every moment. Thank you!
on 20. October 2024, 07:11 by BloodbuzzCorio
Agent I am simlpy in awe of the brilliance and beauty of this puzzle - and slightly in awe of myself that I managed to solve it! I took a couple of wrong turns during the solve, which I guess is easy to do given the size and complexity, but I can't remember the last time I got such a sense of achievement from completing an LMD puzzle. Thank you!
on 30. September 2024, 05:17 by Christounet
Great ! Surprisingly, it took me more time to find the opening of the example. The main puzzle is the kind of huge grid I enjoy immensely. Thanks :)
on 29. September 2024, 22:27 by Myxo
Awesome puzzle!
on 19. September 2024, 14:16 by Alex
what ibag says :)
Especially one wrong assumption in the beginning and one silly mistake towards the end. Epic!
on 13. September 2024, 21:15 by Statistica
Ganz großartig. Hat viel Spaß gemacht!
on 8. September 2024, 16:22 by Agent
Added example puzzle.
on 28. August 2024, 15:44 by ibag
Fantastic! Took me a long time to get rid of all errors.
on 27. August 2024, 17:36 by MagnusJosefsson
Amazing puzzle! Consistently challenging and incredibly rewarding!
on 24. August 2024, 01:06 by ONeill
Epic puzzle! Very satisfying to solve :)
on 23. August 2024, 23:18 by Agent
Added link to an example.
on 22. August 2024, 01:25 by Jesper
Awesome puzzle, quite a journey, thanks!
on 21. August 2024, 22:25 by JustinTucker
I've got 3 questions.
1. By "permaculture borders" you mean the border between the two main areas?
2. The clue number in a cave includes the cell itself?
3. The loop is only allowed to move orthogonally over cell borders?
Thanks.
-- @JustinTucker, the answer to all those questions is yes.
