Japanese Japanese Sums Sums #1
(Published on 30. November 2023, 22:11 by The Book Wyrm)
This puzzle was inspired by zzw's brilliant puzzle vaddsetspi,
Rules:
- Somewhere in the grid there is a 6x6 box, the position of which must be determined by the solver, and inside which standard chaos construction rules apply.
- Chaos Construction: Place the digits 1-6 once each in every row, column and region. The regions (6 groups of 6 orthogonally connected cells) must be determined by the solver.
- Inner Japanese Sums: some of the cells in the grid outside the box contain numbers which are Japanese Sums-style clues indicating the sums of contiguous runs of cells within the row or column of the inner box that are in the same region.
- All clues for every row and column of the inner box must be filled in as numbers in the cells outside the box, in the correct order, in the corresponding row or column. Clues can be on either side (or both) of the inner box (the clues on either side of the box are read as one string, skipping over the inner box, top down or left to right). There are no gaps between clues or between a clue and the inner box. Every cell outside the box and not containing a clue must be empty.
- Outer Japanese Sums: The clues outside the grid are Japanese Sums-style clues indicating the sums of contiguous runs of cells within that row or column that all have the same parity (odd or even).
Note: An empty cell seperates the sums of the outside clues, so if two cells of the same parity have an empty cell between them they are in different sums.
- A '?' represents a digit from 1-9, and '??' represents a 2-digit number, and a '*' represents any number of unknown clues, including 0.
Main Puzzle:
Penpa+ link: Click Here
Sudokupad link: Click Here (Answer check only includes digits in the inner 6x6)
Solution code: Row 4 followed by column 4 (of the overall grid), with empty cells replaced by X. (22 numbers/Xs, might be more than 22 digits)
Comments
on 14. June 2024, 18:10 by ONeill
An impressive and enjoyable puzzle. Maybe one day I will muster up the nerve to attempt #2 :)
on 20. May 2024, 10:34 by BloodbuzzCorio
What an awesome puzzle this is. I found it very difficult - was a multiple hour solve for me spread over a couple of days - but definitely worth the effort. Such power in so few clues - a great setting achievement Book Wyrm!
on 24. March 2024, 03:32 by RJBlarmo
Beautiful puzzle! Lots of interesting deductions to be made with only so few clues.
on 17. March 2024, 07:04 by MxTery
Very nice break-in! I enjoyed the entire puzzle quite a bit.
on 17. March 2024, 07:04 by Phistomefel
Wow, that's a beautiful puzzle! Not as hard as I expected, but very satisfying to find the breadcrumbs you sprinkled all over the grid. Thank you, Book Wyrm!
on 8. February 2024, 10:35 by Christounet
Beautiful !! I came to this puzzle a few days ago after solving the puzzle it is inspired from. This one is undoubtedly harder. So much information to gather to make it work. I found the first deductions in somes rows/columns rather quickly, but it took me a few days of reflexion to understand how to combine them and really get this going. After that, still a lot of hard deductions with very few clues to work with. It was very satisfying to see this build piece ny piece. A wonderful and memorable experience for me. Thanks++ :)
on 7. February 2024, 23:15 by Fool on Hill
Great puzzle - lots of interesting things going on there right to the end and all sorts of tricks. Thoroughly enjoyed it.
on 7. February 2024, 18:44 by PrimeWeasel
Phew..that was really tough..amazing puzzle...be careful though when attempting...there's a lot to wrap your head around.. Well worth it though!
on 6. February 2024, 00:39 by Piatato
Very cool puzzle!
on 6. December 2023, 09:20 by Statistica
Ganz großartig! Vielen Dank!
on 3. December 2023, 19:55 by marcmees
Extremely beautiful. thanks.
on 1. December 2023, 22:02 by SenatorGronk
uh, wow. This was incredible. Thanks!
on 1. December 2023, 06:43 by zzw
Simply amazing puzzle, loved it! Very cool extension of the rules in vaddsetspi that really makes the most out of every clue--quite surprising how few are needed.
So happy to have inspired this! I played around with some CC ideas after making vaddsetspi but I doubt any of them would've turned out this good.
on 1. December 2023, 02:47 by worsted
好耶！
on 1. December 2023, 02:47 by worsted
好耶！
on 1. December 2023, 00:54 by Myxo
Absolutely bonkers puzzle!
on 30. November 2023, 22:57 by The Book Wyrm
Fixed example image
