Logic Masters Deutschland e.V.

Heavy Is the Crown

(Published on 5. December 2025, 23:38 by sujoyku)

Happy Birthday, Calvinball! This puzzle is for you. :)
I wish you all joyful solving!

Here you can watch how Simon of Cracking the Cryptic solves the puzzle.

Rules:

- Normal sudoku rules apply, i.e. each row, column, and 3x3 region has to contain the digits from 1 to 9 once each.

- Tentropic Lines: Every set of four sequential digits on a hollow peach line must contain one each from {19}, {28}, {37}, and {46}. A 5 may not appear on a Tentropic Line. Digits on a line may repeat if allowed by other rules.

- Region Sum Lines: Box borders divide the blue lines into segments with the same sum. (Different lines may have different sums.)

- Killer Cages: Digits in a cage must sum to 20.

Here you can solve the puzzle online:

Solve on Sudokupad

Solution code: Column 1 from top to bottom (9 digits in total)

Last changed on on 9. December 2025, 22:52

Solved by claymategirl, Sotehr, jmw, Myxo, cyddrdrd, Calvinball, tuturitu, SincereEngineer, gdc, Krisonium, Elliott810, smckinley, by81996672, mihel111, chinesemaster, Piatato, Askloomok, lcy.30, mezkur7, ... Morisenseiisgod, asii, forsen, killer_rectangle, Illuminated, iTeaMaster, spookyripper, Khatru, trashghost, ghosting, Voidslime, darkgently, wotmania505, jimblek, Zeld1, Ramez, IamNumberN, mcs131313
Full list

Comments

on 9. December 2025, 22:52 by sujoyku
added a link to the CTC video solve

Last changed on 9. December 2025, 22:54

on 9. December 2025, 06:06 by Playmaker6174
This one certainly reminded me of certain older cool puzzles I'd seen and solved in the past, very consistent and well set puzzle overall! :)

**
Thank you for your comment, Playmaker6174! I am glad that you liked the puzzle.
Kind regards, sujoyku

Last changed on 9. December 2025, 22:54

on 9. December 2025, 03:08 by antiknight
This puzzle was exceptionally well-crafted. It was beautiful to solve, and the steps were truly impressive.

**
Thank you for your comment, antiknight! It is great to hear that you found it beautiful to solve.
Kind regards, sujoyku

Last changed on 7. December 2025, 00:10

on 6. December 2025, 20:53 by iffy
Wow! What a puzzle. Took me over two hours but felt like I was making tiny bits of progress the whole time. Very enjoyable.

**
Thank you for your comment, iffy! It is great to hear you found it to be enjoyable.
Kind regards, sujoyku

Last changed on 7. December 2025, 00:09

on 6. December 2025, 18:15 by Lenivaya_Joppa
Thank you for this nice puzzle, dear sujoyku! :)

**
Thank you for your comment, Lenivaya_Joppa! I am glad that you enjoyed the puzzle.
Kind regards, sujoyku

Last changed on 6. December 2025, 14:10

on 6. December 2025, 13:51 by Black_Doom
Just superb!

**
Thank you, Black_Doom!
Kind regards, sujoyku

Last changed on 6. December 2025, 11:45

on 6. December 2025, 11:35 by Snookerfan
Great puzzle! Tricky and fun, I really like that the tiny break of symmetry does so much. Thanks.

**
You are much welcome, Snookerfan, thank you for your comment! I am glad that you enjoyed the puzzle and liked how the symmetry is broken.
Kind regards, sujoyku

Last changed on 6. December 2025, 10:11

on 6. December 2025, 08:47 by Piatato
Very cool!

**
Thank you, Piatato!
Kind regards, sujoyku

Last changed on 6. December 2025, 10:10

on 6. December 2025, 07:22 by mihel111
Lots of cool tricks in this one. Well done

**
Thank you for your comment, mihel111! I am glad that you liked the puzzle.
Kind regards, sujoyku

Last changed on 6. December 2025, 10:09

on 6. December 2025, 03:29 by Calvinball
Really appreciate the puzzle mein Freund, that was awesome!

**
¡Muchas gracias, amigo! I am very happy that you enjoyed this gift puzzle.
Kind regards, sujoyku

Last changed on 6. December 2025, 10:09

on 6. December 2025, 00:51 by cyddrdrd
Very cool! Thanks!

**
Thank you for your kind words, cyddrdrd!
Kind regards, sujoyku

Last changed on 6. December 2025, 00:40

on 6. December 2025, 00:31 by Myxo
Lovely!

**
Thank you, Myxo!
Kind regards, sujoyku

Last changed on 6. December 2025, 00:39

on 6. December 2025, 00:28 by Sotehr
Happy 60th or 20th birthday, Calvinball! (Or somewhere in between.)

**
Thank you for your comment, Sotehr! I think my choice of cage totals might have been somewhat misleading, but inbetween it is. :D
Kind regards, sujoyku

Difficulty:3
Rating:97 %
Solved:125 times
Observed:1 times
ID:000QFK

Enter solution

Solution code:

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