Colours in the (k)night XVIII
(Eingestellt am 24. November 2025, 11:02 Uhr von 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:
Lösungscode: Row 9 (9 digits)
Kommentare
am 18. Dezember 2025, 11:14 Uhr von Tws
For me it was a hard one! Once I figured out the position of the square it kept on going - but until this point it took long time and a universe of colors flying around. It took me hours to figure out which double was in the 34!
am 5. Dezember 2025, 13:17 Uhr von itsid
That was hard... not enough that I always struggle on irregular sudoku grids, which took me well over an hour alone (and two restarts)
the little killers made no sense whatsoever because most difficult part for me appears to be "read __ALL__ the rules!" :D
Anyways, luckily the position of the magic square was unambiguous and having it's numbers relative position in mind it finally made sense.
thanks for this great puzzle
am 29. November 2025, 04:02 Uhr von Coufik
Huge thanks for creating this puzzle and for adding yet another gem to this series, which I’m really enjoying a lot! I honestly have no idea how anyone can even construct something like this.
I’ve decided that in this series I won’t leave a single puzzle unsolved, and this one really put that resolve to the test... It took me a lot of time to crack it. The coloring part twisted my brain for quite a while, but I eventually managed to sort it out.
The real beast, though, was working out the digit values for each color… that part nearly broke me (in a good way)! :D
Really looking forward to the next puzzle in this series!
am 28. November 2025, 17:56 Uhr von superkinkel
Absolutely brutal, definitely 5 stars for me. Very enjoyable though!
am 25. November 2025, 10:24 Uhr von 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!
