Logic Masters Deutschland e.V.

Medieval Upheaval 2

(Published on 6. January 2023, 08:00 by Nordy)

Sequel to Medieval Upheaval.

This puzzle explores different implications of the ruleset, so you may find the "feel" of the puzzle quite different from its predecessor. Enjoy!


Rules:

Chaos Construction: Place the digits 1 to 9 in every row, column, and irregular region. Each region is a set of nine orthogonally connected cells that must be determined.

Kings, Knights, and Rooks

  • Squares—King Sums: Digits in cells with squares are the sum of all digits that share its region and are a king's move away.
  • Circles—Knight Sums: Digits in cells with circles are the sum of all digits that share its region and are a knight's move away.
  • Diamonds—Rook Sightlines: Digits in cells with diamonds indicate the number of cells seen by rook’s move in all directions combined, including the cell with the diamond. Region borders obstruct vision.

White Pieces and Black Pieces

  • White Dots: Digits joined by a white dot are in different regions and must be consecutive.
  • Black Dots: Digits joined by a black dot are in the same region and must be in a 1:2 ratio.

Not all squares, circles, diamonds, or dots are necessarily given.


Example: Below is an example that shows valid ways to fulfill each clue type.


Solve Online:

  • CTC
  • Penpa+ (answer check on blue Sudoku and green edges)

Solution code: The digits in Column 7 from top to bottom, followed by the number of unique regions in Column 7 (10 digits total)

Last changed on -

Solved by Leonard Hal, Steven R, marcmees, Gryllulus, Tilberg, Leira, jkuo7, Beanie, Mrtn, lepton, mathpesto, KNT, halakani, flyjim, galgamer, peacherwu2, Elliptical, tuturitu, kjholt, Lavender Gooms, ... redgecko, Snookerfan, AzureFire, PetLov, mackerel, Tompzini, bansalsaab, wuc, Vedvart, Piatato, MaizeGator, ZornsLemon, han233ing, Counterfeitly, Drewpacabra, dpsy, Calvinball, andreiz, Catashtrophe
Full list

Comments

on 27. June 2024, 23:45 by Piatato
Awesome!

on 25. June 2024, 13:14 by wuc
Awesome. Love the logic all along. Very rewarding hurdles during the solve. Now looking forward to tackle the whole series. Thx.

on 23. January 2024, 13:08 by Snookerfan
Great puzzle! Thank you

on 14. July 2023, 04:45 by damasosos92
This is the definition of a "well constructed chaos construction".

on 14. July 2023, 03:28 by yttrio
Fantastic puzzle! Great logic throughout for the region building!

on 13. April 2023, 10:10 by Bankey
Definitely a 5* for me. Break-in is easy but then it becomes gradually harder. In the endgame i was able to fill in all the digits without yet completing all the regions, which led to some perplexing moments but then i saw what the solution code needed ! Clever :) Thanks, @ Nordy :)

Last changed on 21. January 2023, 20:32

on 21. January 2023, 19:51 by heliosfant
I could not solve it, but nonetheless one of the best puzzles I ever played

-Thanks for the nice comment :) if you want a nudge in the right direction, feel free to message me @Nordy on the CTC discord or post a hidden comment here

on 18. January 2023, 00:17 by ONeill
Very fun!

on 9. January 2023, 04:10 by Elliptical
I found the puzzle quite hard and very enjoyable. Thank You.

on 7. January 2023, 19:06 by KNT
Awesome!

on 7. January 2023, 18:47 by mathpesto
Loved it, consistently fascinating deductions throughout. Tough but fair!

on 7. January 2023, 18:44 by lepton
One of the best chaos constructions I've seen.

on 6. January 2023, 13:48 by marcmees
Smooth solve, if not falling in all well laid out traps :-). thanks

Difficulty:4
Rating:98 %
Solved:55 times
Observed:10 times
ID:000CGX

Variant combination Online solving tool Chess

Enter solution

Solution code:

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