Normal Sudoku rules apply.
German Whispers: Adjacent digits along the green line must have a difference of at least 5.
Modular Lines: Any run of 3 digits along a teal modular line must include one digit from each of the modulo 3 sets, i.e. one from (1, 4, 7), one from (2, 5, 8) and one from (3, 6, 9). When a line crosses itself, it continues in the same direction until the next cell.
Quadruple: Every digit in a circle has to be assigned to one of the four surrounding cells.
Solution code: Column 1 from top to bottom
on 18. April 2025, 20:47 by erpice1979
아주 매끄러운 풀이였어요
on 22. March 2025, 18:08 by Lovejoy
Nice puzzle. More than 1× for me.
on 10. March 2025, 22:21 by fragglerock1981
That was a really good puzzle. Thank you for sharing it!
on 10. March 2025, 13:11 by PinkNickels
Fun one! Thanks for sharing!
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