Logic Masters Deutschland e.V.

I miss ATK (Anti-Knight Palindrome)

(Eingestellt am 1. Dezember 2025, 15:52 Uhr von galium_odoratum)

This is a tribute to Abdul the Killer, who (as far as I know) invented this lovely shading rule set. Since no one else seem to publish puzzles anymore using this shading rule set, I tried to create a puzzle on my own. If you are already familiar with this kind of rule set, I expect the difficulty to be 1.5* - 2.5*.

Normal Sudoku rules apply.

Shading: Cells containing values exactly one greater than an immediate neighbour (diagonally or orthogonally) within their box are shaded. All the shaded cells are given.

Anti-Knight: Cells a knight's move apart cannot contain the same digit.

Palindrome: Digits along a grey line must read the same forwards and backwards.

XV: Digits joined by a V sum to 5. Not all Vs are necessarily given.

Play on SudokuPad

Lösungscode: Row 1


Gelöst von DanishDynamite, BenClancy, marcmees, Mathemagier, fuxia, HeyItsErin, JohnDoeJersey, jguer, luuu, thomamas, dkfan9, tryote, Llamaths, SFP, dogfarts, gxorgx, jubengo, jadezki, Stargazing Albatross, ... MaxSmartable, pescirope, ClarityC, AN_not_IO, sarabtx, whtshername, Kabuki73, scarfdoku, McMingus, esumpter, Yoica, michalil, thintheboxking, JMK, sandmoppe, tjmas, Across, Jodelbanane, Jdt112, LLX
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Kommentare

am 27. Februar 2026, 20:42 Uhr von scarfdoku
That was fun. I've been going through ATK's puzzles because of this one. Thanks.

am 11. Dezember 2025, 14:52 Uhr von Tws
Ein wunderbar fließendes Konstrukt. Eins kommt stets zum nächsten und führt zum Erfolg..

am 11. Dezember 2025, 14:52 Uhr von Tws
Ein wunderbar fließendes Konstrukt. Eins kommt stets zum nächsten und führt zum Erfolg..

am 6. Dezember 2025, 22:28 Uhr von ozgaz
Thanks for creating with this ruleset - I miss ATK too.

am 5. Dezember 2025, 01:24 Uhr von itsid
uhm, maybe it's by design, but the palindrome is not needed to solve at all, not sure if the "V" is needed, frankly I doubt it...

am 4. Dezember 2025, 11:24 Uhr von JoeyJoeJoe
01:02:40 for me - thanks for setting

am 2. Dezember 2025, 23:22 Uhr von Exigus
That was very cool, thanks for setting!

am 1. Dezember 2025, 23:01 Uhr von jubengo
Fun puzzle with Smooth solving once you get your head around the constraint :)

am 1. Dezember 2025, 17:16 Uhr von DanishDynamite
Completely forgot about this constraint. Nice to see it revived!

Schwierigkeit:3
Bewertung:92 %
Gelöst:101 mal
Beobachtet:6 mal
ID:000QD8

Lösung abgeben

Lösungscode:

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