Normal sudoku rules apply: place the digits 1 to 9 in every row, column, and 3x3 box.
Diagonal: Digits may not repeat on the marked (blue) diagonal.
Killer: Digits in a cage sum to the small clue in the cage's top-left corner. Digits may not repeat within a cage.
Renban: Digits on a purple line form a set of consecutive digits, in any order.
German whispers: Adjacent digits on a green line differ by at least 5.
Kropki: Digits separated by a black dot are in a 1:2 ratio. Digits separated by a white dot are consecutive. Not all dots are given.
Solve online in SudokuPad.
Solution code: Row 2 (9 digits, no spaces)
on 25. July 2026, 09:40 by Mozart40
That worked out really well, nice flow.
on 24. July 2026, 08:08 by BigHead
Excellent puzzle thank you!