Wall Sudoku
(Published on 22. December 2021, 23:59 by Phistomefel)
Here are the rules:
- Each row, column and white or gray 3x3-box contains each digit from 1 to 9 exactly once.
- Place a wall between all orthogonally adjacent cells that contain consecutive digits. Some walls are already given. They separate two consecutive digits.
- A circled digit indicates how many cells it can see in horizontal and vertical direction including its own cell. Walls obstruct the view. Not necessarily all circles are given.
Here you find a link to the example.
The puzzle is available online via Penpa Plus, as well. Have fun solving!
Solution code: 7th and 8th row
Comments
on 30. January 2022, 16:07 by cdwg2000
Very nice!
on 15. January 2022, 12:18 by Phistomefel
Thanks, rokokolito! :)
on 14. January 2022, 19:23 by rokokolito
Great puzzle!
on 9. January 2022, 22:35 by Phistomefel
Vielen lieben Dank für deinen netten Kommentar, AnnaTh! Es freut mich immer sehr, wenn dir eines meiner Rätsel gefällt. :)
on 31. December 2021, 15:20 by AnnaTh
Mega! Hat unglaublich viel Spaß gemacht!
on 30. December 2021, 16:15 by Phistomefel
@henrypijames,Fedo,pianobarry87: Thank you very much for solving the puzzle and for the kind words! :)
on 30. December 2021, 16:13 by pianobarry87
I really enjoyed solving this one. The break-in was fantastic! It felt like I was solving a intricate murder mystery for a moment :) Thanks!
on 30. December 2021, 14:50 by Phistomefel
Added tags
on 27. December 2021, 19:08 by Fedo
I don't know what to say! Wow, many thanks Phistomefel.
I feel lucky to be able to solve these gems you set. I usually screenshot all my solves to collect them, but this could easily deserve a printed copy :)
on 26. December 2021, 16:39 by henrypijames
Feels so good to have solve this one - after my failure with the Lighthouse. :D
on 26. December 2021, 13:19 by Phistomefel
@Mody: Dankeschön! :)
@DiMono: Thank you for solving the puzzle and for the nice words!
on 25. December 2021, 19:10 by DiMono
Excellent puzzle. I really like this constraint. Thank you for setting this.
on 25. December 2021, 14:55 by Mody
Großartig
on 25. December 2021, 11:24 by Phistomefel
@filuta: Thank you! I am happy that you enjoyed the break-in.
@craigs: I am glad you liked the puzzle despite being stuck for so long. And thanks for persevering! :)
@Nordy: Thank you very much for providing the inspiration for the puzzle and the nice fedback! My original idea was to take your ruleset, but let the solvers place the walls themselves, but it turned out to work a bit nicer with the consecutive condition.
@SudokuExplorer: I really love the name "Roman Ruins". Making the walls a subset of the region borders is a good idea. But before I try this, I would like to find out whether there is another ruleset that is a bit flexible and allows me to get to a unique solution of the region division problem. GW looks quite good.
on 24. December 2021, 20:46 by SudokuExplorer
@Phistomefel: Yes, with XV rules we'd get the Roman ruins! ;-)
For your chaos construction idea, maybe the walls could be a subset of the borders of the regions. That would be less constrained.
on 24. December 2021, 05:01 by Nordy
Wow, exceptional puzzle! Many interesting knots to untangle, some very tricky. I especially like that you have to navigate and build the caverns simultaneously.
I am honored that Cavern Crawl was an inspiration! Unfortunately, setting that series made solving this puzzle more challenging. In Cavern Crawl, walls are notoriously unhelpful, but here they are quite potent. Whenever I found myself banging my head against a wall (literally), I just needed to look at a wall more closely. Nevertheless, my enjoyment was not diminished, and I am always grateful to have a spotlight cast on one of my blindspots.
on 24. December 2021, 01:32 by craigs
I thought the logic behind the break-in was fun, but about 2/3 the way through the puzzle I got stuck for an hour.
Thank you Phistomefel for the wonderful puzzle!
on 24. December 2021, 00:54 by filuta
Really enjoyable puzzle with a cool break-in (that for me personally was quite hard to see). Thanks.
on 23. December 2021, 19:00 by Phistomefel
@Magnus: Thank you for the nice feedback!
@SudokuExplorer: Many thanks! I am also glad you liked the concept. What I like about it is that you can easily replace the consecutive codition by something else, e.g. by XV clues. Also, I am investigating the potential to create a Chaos Construction out of it, but it is heavily constrained.
@Florian Wortmann: Vielen Dank! Es freut mich sehr, wenn dir das Rätsel gefallen hat.
on 23. December 2021, 18:10 by Florian Wortmann
Sehr schön! Viele interessante Schritte von Anfang bis Ende.
on 23. December 2021, 17:54 by SudokuExplorer
Great concept! The break-in was really interesting and the puzzle flowed nicely, thanks :-)
on 23. December 2021, 16:05 by MagnusJosefsson
A very nice and pleasant puzzle with a smooth solution path and some interesting logic!
on 23. December 2021, 13:01 by Phistomefel
Thank you so much for all the nice comments, folks! I am very glad you enjoyed the puzzle. :)
on 23. December 2021, 12:43 by marcmees
always happy to find a nice and approachable Phistomefel puzzle. Thanks.
on 23. December 2021, 10:52 by Vebby
I echo all the previous comments, thank you for the fun puzzle Phistomefel! :)
on 23. December 2021, 09:34 by PixelPlucker
Great concept!
on 23. December 2021, 08:51 by Playmaker6174
Very beautiful opening with very smooth flow afterwards following by many neat deductions, an excellent Christmas gift for me :D
on 23. December 2021, 06:24 by jgreenfield
This is a fantastic puzzle! The logic path flows quite nicely once you break in, and it's quite satisfying to watch everything fall in place at the end.
on 23. December 2021, 01:14 by RJBlarmo
Very fun puzzle!
on 23. December 2021, 01:02 by Jesper
A really lovely original concept with some cool logic to discover! Thanks, Phistomefel!
