Liar X-Sums Chaos Construction
(Published yesterday, 08:33 by Christounet)
[NOTE : this is a re-upload of a puzzle I published before, but with a wrong clue I copied from an earlier draft (which is ironical for a "liar" puzzle). Sorry to anyone who tried it before! This one should be good.]
A couple days ago, I published with rdrd a first challenging puzzle with liar X-Sums. This one should be on the easier side. It is my first 9x9 chaos construction. I tried my best to keep a good balance between region building and an approachable irregular sudoku resolution. Difficulty should be around 4, or maybe less if you are familiar with chaos construction. Do try the example first, it should be a fun easy intro to the concept. Have fun solving!
Thanks to rdrd for testing!
The puzzle :
Rules :
- Normal sudoku rules apply
- Chaos construction : Place the digits 1 to 9 once each in every row, column and region. Regions are orthogonally connected and must be located by the solver.
- X-Sums : Clues outside the grid represent the total of the first X digits in that direction, with X being the digit in the first seen cell. The clue also indicates that the first X cells in the row/column from that direction are in the same region, and the next cell (X+1) is in a different region. A "?" is a stand in for any digit 1-9.
- Liar X-Sums clues : For each row/column with clues, two clues are provided. Only one of them (top or bottom, left or right) is fully correct. The other clue is lying and therefore totally or partially wrong.
Example puzzle :
Solution code: Column 6, with hyphens (-) for region borders. (Example: 123-45-6-7-89)
Comments
yesterday, 21:47 by dzamie
The full puzzle is a fair bit too tricky for me, but the 6x6 was a lot of fun!
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Thanks! Glad you enjoyed the 6x6 :)
If you want to try the big one and get stuck, I can provide some hint. Let me know!
yesterday, 18:03 by marcmees
Sweet little lies. Thanks
yesterday, 17:00 by Playmaker6174
Very cleverly set puzzle overall! It felt like a two parts solve for me but the regions building part in this one was very nicely done and rather wonderful there (which must've taken ages to find, lul) x)
yesterday, 16:40 by Qodec
Loved that! Thanks!
yesterday, 15:14 by Jesper
Fun CC, thanks!
yesterday, 14:16 by Christounet
Reformulation of the "liar X-Sums clues" definition.
yesterday, 10:31 by Piatato
Very cool puzzle, thanks!
yesterday, 09:19 by cyddrdrd
A cool combination with great fun! Thanks :)
yesterday, 08:49 by Chanome
wait i dont get it.
so for the liar x-sums, does the rule that
the first x cells on that row/column from that direction are in the same grp still apply?
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If the clue is not entirely true, it is considered a liar, but part of it could be true.
