Logic Masters Deutschland e.V.

Hello, Twenty-Nine! (Killer + LK sudoku)

(Published on 11. January 2026, 10:14 by sujoyku)

The concept is easily explained: Each cage and each marked diagonal sums to 29.
I am thanking all testers and wish you joyful solving!

Rules:

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

- Killer Cages: Digits in a cage do not repeat and must sum to 29.

- Little Killers: Digits on a marked diagonal sum 29. (If there is no conflict with other rules, digits on such a diagonal may repeat.)

Here you can solve the puzzle online:

Solve on Sudokupad

Solution code: Row 2 from left to right (9 digits in total)


Solved by NEWS, Piff, RebelSystem, ThePedallingPianist, EmX68, Bjd, ralphwaldo1, cornish-john, Mr. Happy, Piatato, Calvinball, Killer-Ly , brimmy, forsen, scushuaishuai, Fool on Hill, Sotehr, skywalker, ... TheCutmaster, NotVeryNeat, sorryimLate, kehan628, lianarox, slowbiex, MysticMan, zhangjinyang, MSDOS, Crusader175, werkelmann, mcs131313, noodlehead, zrbakhtiar, Jdt112, paranoid, CSStead, Llamaths
Full list

Comments

Last changed on 26. January 2026, 19:44

on 25. January 2026, 05:58 by Crusader175
Very nice killer!

**
Thank you, Crusader175! I am glad you enjoyed the puzzle.
Kind regards, sujoyku

Last changed on 15. January 2026, 19:38

on 15. January 2026, 11:28 by SennyK
Yet another lovely puzzle with brilliant logic from sujoyku, thank you!

**
Thank you for your kind words, SennyK! It is great to hear that you liked the puzzle.
Kind regards, sujoyku

on 13. January 2026, 08:07 by jinbiao1994
好难呀

Last changed on 12. January 2026, 14:09

on 12. January 2026, 14:01 by Snookerfan
Really fun puzzle! An excellent mix of easy and a bit harder logic. Thanks

**
You are much welcome, Snookerfan, thank you your comment! It is great to hear you enjoyed this puzzle's logic and had a fun solve.
Kind regards, sujoyku

Last changed on 12. January 2026, 13:53

on 12. January 2026, 03:21 by virus_dave
Very fun. I honestly didn't think I'd be able to solve it a few times, but it always gave in.

Cute break in, too!

**
Thank you for your comment, virus_dave! I am glad the puzzle was a fun challenge and that you liked its break-in.
Kind regards, sujoyku

Last changed on 11. January 2026, 21:42

on 11. January 2026, 21:19 by Exigus
Another lovely addition. Thanks!

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

Last changed on 11. January 2026, 19:58

on 11. January 2026, 19:39 by Ragna
Wonderful puzzle! Thank you. :-)

**
You are much welcome, Ragna, thank you for commenting! I am glad that you liked the puzzle.
Kind regards, sujoyku

Last changed on 11. January 2026, 16:21

on 11. January 2026, 15:55 by nunc
A beautiful mathsy puzzle. Thanks a lot.

**
You are much welcome, nunc, thank you for your comment! I am glad that you enjoyed the math in this one.
Kind regards, sujoyku

Last changed on 11. January 2026, 13:58

on 11. January 2026, 11:26 by EmX68
Really enjoyed solving this puzzle. Thank you, Sujoyku!

**
You are much welcome, EmX68, thank you for your comment! It is great to hear that you enjoyed the solve.
Kind regards, sujoyku

Last changed on 11. January 2026, 13:57

on 11. January 2026, 11:22 by RebelSystem
A wonderful treat for a Sunday morning. Thank you.

**
You are much welcome, RebelSystem, thank you for your comment! I am glad that you enjoyed the puzzle this morning.
Kind regards, sujoyku

Last changed on 11. January 2026, 10:19

on 11. January 2026, 10:17 by NEWS
Leicht und sehr gut Sequel in dies Serie! Danke schön, sujoyku! Ich freue mich auf die 30er!

**
Vielen Dank für deinen Kommentar, NEWS!
Es freut mich, dass es Dir gefallen hat.
Herzliche Grüße, sujoyku

Difficulty:3
Rating:94 %
Solved:118 times
Observed:0 times
ID:000QYA

Enter solution

Solution code:

Login