Logic Masters Deutschland e.V.

Hope you enjoy! :)

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

XV: Cells separated by a V sum to 5; cells separated by an X sum to 10. Not all Vs and Xs are necessarily given.

Magic square: Somewhere in the grid lies a 3×3 magic square that 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. (The magic square can occupy cells from different boxes.)

Solve online:Sudokupad

Solve online:Sudokupad (Version 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

Colours in the (k)night XVIII

Colours in the (k)night XIX

Colours in the (k)night XX

Colours in the (k)night XXI

Colours in the (k)night XXII

Colours in the (k)night XXIII

Colours in the (k)night XXIV