Quiet Investigation
(Published on 12. September 2025, 08:51 by oskode)
Rules:
- Sudoku: Fill all rows, columns and marked 3x3 regions with the digits 1-9 without any repeats.
- Anti-Knight: Cells separated by a knight’s move in chess may not contain identical digits.
- German Whispers: Adjacent digits along a green line have a minimum difference of 5.
- Palindromes: Digits along a grey line read the same from either direction.
- Black Kropki: Digits separated by a black dot are in a 1:2 ratio.
Click here to play online!
Ratings and comments are very much appreciated. Thank you for playing!
Solution code: The digits in column 9, from top to bottom
Solved by by81996672, Piff, Felis_Timon, Simon Yuan, dickey, Fizz, LabRat, dkfan9, jalebc, pseudoku, jadezki, Zibl, Kigor, Joyofrandomness, SKORP17, giladooshlon, briansometimes, brimmy, jnmh, Graphael, NicoD, ... Keshel, abed hawila, severinus, noodlehead, paranoid, TaeChi, wotmania505, BenClancy, Cliff, mcs131313, mezkur7, Black_Doom, Ye Nay Myo Han, bcreturnee, karlmortenlunna, dogfarts, AN_not_IO
Comments
on 15. September 2025, 09:37 by snuuba
Quality time with my crayons, many thanks
on 13. September 2025, 20:40 by Exigus
Really nice use of the constraints. Loved it. Thanks!
on 12. September 2025, 22:53 by briansometimes
A colorado puzzle with my favourite restrictions, what a treat!
on 12. September 2025, 19:26 by Zibl
Great puzzle! Thank you!
