After learning many lessons about setting over the past few weeks, I have finally constructed a Chess Sums Chaos Construction with a smooth solve path (you can find the previous monsters here and here). In this newest version, I have simplified the rules by removing the Rooks and double clues, and I have also provided some given digits! (For any setters still allergic to given digits like I was, I recommend visiting a doctor :P). Thanks again to @henrypijames for the name inspiration. 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.
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.
Not all squares or circles are necessarily given (no negative constraint).
Example: Below is an example region with valid square and circle clues. The squared 6 sees 4+2 by king's move. The circled 8 sees 3+5 by knight's move.
Solve Online:
Solution code: Row 8 (left to right) with dashes for region borders (example: 35-2187-96-4)
on 27. June 2024, 22:53 by Piatato
Excellent!
on 25. January 2024, 09:58 by IAlreadyHaveAKey
I love this! Definitely one of my favourite chaos constructions
on 23. January 2024, 15:38 by PetLov
After solving Medieval Upheaval 3 yesterday I just had to give this one a go.
No 2 is on my to do list :-)
on 7. July 2023, 03:35 by damasosos92
Though but always fair. Loved the interactions. I can't believe you continue to create those beautiful things. Thank you Nordy.
on 15. May 2023, 11:32 by Bankey
Somehow, i found this tougher than Medieval Upheaval 2. Got thru on the second attempt. Good fun. Thanks, @ Nordy :)
on 10. July 2022, 18:45 by Jesper
Awesome, thanks! Indeed, very smooth, especially compared to the earlier puzzles :)
on 5. July 2022, 13:25 by Christounet
Very nice ! I have never tried the previous iterations with that ruleset, but this one was really cool and just hard enough. Loved the way the first region popped out of nowhere very quick in the beginning.
on 4. July 2022, 06:04 by polar
This solve path was silky smooth compared to the previous 'introduction' - congrats on such a great improvement! Lovely balance between required deductions and rewarding the solver at the same time.
P.S. Thanks for the heads up on this :)
on 3. July 2022, 21:27 by filuta
haha, good that you were able to overcome your givenphobia, since the givens are used wonderfully!
on 3. July 2022, 16:02 by Agent
Very cool puzzle! The chess sum constraint is pulling a lot more Wright than I thought at first.
on 2. July 2022, 22:18 by Dag H
Very nice puzzle, well done.
on 2. July 2022, 22:04 by marcmees
Solution path well laid out. Relatively easy compared to the previous "monsters". Thanks.
on 2. July 2022, 22:03 by Tilberg
Cool new logic!
on 2. July 2022, 20:16 by Briks
Step for step great fun.
on 2. July 2022, 18:55 by bansalsaab
Beautiful puzzle. I didnt think i could finish it but slowly kept opening up new cells.
on 2. July 2022, 17:16 by MagnusJosefsson
Great puzzle, smooth and enjoyable solution path. Thanks and well done!
on 2. July 2022, 16:22 by Steven R
Very nice and fun, thanks!