Secret Kingdoms
(Published on 27. March 2024, 17:36 by SenatorGronk)
UPDATE 19-SEP 2024: I've moved one of the given borders (again), which I think makes the region-building after the break-in much less painful.
Rules
- Divide the grid into 9 kingdoms of orthogonally connected cells.
- Fill the grid with the digits 1-9 so that each digit appears once in each row, column, and kingdom.
- The strength of a kingdom is determined by summing the digits in its castle(s).
- A digit in a blue square indicates its kingdom's strength. Each kingdom has a different strength.
- Digits connected by bridges are in different kingdoms and for each their value is the strength of the kingdom on the other side of the bridge.
- Two kingdom borders are provided.
SudokuPad
Solution code: Row 7 + Col 9
Comments
on 19. September 2024, 15:55 by SenatorGronk
fixing html
on 19. September 2024, 15:50 by SenatorGronk
Moved a given border
on 7. September 2024, 12:29 by Silverstep
Cute break-in, but the region-building afterwards was like pulling teeth.
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Thanks for the feedback -- I played around and found a small tweak that greatly smooths out the region-building.
on 5. April 2024, 21:40 by zakkai
Beautiful puzzle! Took me a week before I realised an region-building error I made at the very beginning. 10/10
on 1. April 2024, 18:34 by SeveNateNine
What a ride! I made a bad deduction about one of the regions that only broke the puzzle at the very end. Glad I came back. Awesome puzzle!
on 30. March 2024, 18:17 by SenatorGronk
Changed link to a version that verifies the solution
on 29. March 2024, 15:34 by marcmees
very hard but rewarding solve. Amazing puzzle. thanks.
BTW: genius break in.
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Thank you! :-)
on 29. March 2024, 14:43 by Dot
I love it! The break-in was not so hard, but it was really exciting! After this break-in, the tough part of the puzzle began. Managing to solve this puzzle made my day!
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That's wonderful to hear, thank you!
on 29. March 2024, 01:49 by mihel111
That was the hell of a beast. The break-in is incredible, but doable. After that, you still have to work so hard. I surely missed some points. Such a great feeling to finish it.
Very well done, Senator
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Glad you enjoyed it! Yeah there are a couple of spots after the break-in that are a little tough. I ended up moving one of the given borders to hopefully simplify things a bit.
on 28. March 2024, 12:50 by TrollErgoSum
Absolutely loved the break-in. Lots of tricky parts on this one and a joy to solve.
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Thanks for the feedback! Yeah, that break-in was fun to setup.
