Logic Masters Deutschland e.V.

Colours in the (k)night XVIII

(Published on 24. November 2025, 11:02 by Villse)

Next installment in my “Colours in the (k)night” series. I hope you enjoy it :)

Links to the previous parts of the series are given after the rules.

Rules:

Irregular Sudoku rules apply. Place the digits 1–9 once in every row, column, and marked region.

Anti-Knight: Cells separated by a knight’s move in chess cannot contain the same digit.

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

Little killer: Digits along marked diagonals sum to the number indicated outside the grid.

Magic square: Somewhere in the grid lies a 3×3 magic square, which contains all digits from 1 to 9 exactly once and in which every row, column, and diagonal adds to the same total. It’s up to the solver to determine the location of the magic square.

Solve online:Sudokupad

Solve online:Sudokupad with thicker region lines

Happy solving!

Here are the links to the previous parts of the series:

Colours in the (k)night

Colours in the (k)night II

Colours in the (k)night III

Colours in the (k)night IV

Colours in the (k)night V

Colours in the (k)night VI

Colours in the (k)night VII

Colours in the (k)night VIII

Colours in the (k)night IX

Colours in the (k)night X

Colours in the (k)night XI

Colours in the (k)night XII

Colours in the (k)night XIII

Colours in the (k)night XIV

Colours in the (k)night XV

Colours in the (k)night XVI

Colours in the (k)night XVII

Solution code: Row 9 (9 digits)

Last changed on -

Solved by jalebc, Gribba Bibba, BenClancy, TaeChi, mattnburris, Joyofrandomness, SKORP17, Marshal on Mars, tuturitu, vitaminz, gxorgx, sarabtx, dogfarts, by81996672, weiken, strangelyinsane, Snookerfan, ... Killer-Ly , lrbhandanshi, dickey, Bjd, jordanza, apendleton, War, zuzanina, brimmy, hollowpineapple, Dentones, SXH, Isael, Chelo, tim_vermeulen, LeaVulpina, grunde, snoswal, kdwji, mutex, Eespi
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Comments

on 25. November 2025, 10:24 by Snookerfan
Very nice! Coloring was challenging, then trying to solve the puzzle while forgetting about the magic square was a real challenge. Gladly I reread the rules. Thanks!

Difficulty:4
Rating:94 %
Solved:41 times
Observed:0 times
ID:000PCY

Puzzle variant Variant combination New

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