Twill
(Published on 27. October 2026, 15:24 by vitray)
Normal sudoku rules apply: place the digits 1 to 9 in every row, column, and 3x3 box.
Anti-knight: Cells separated by a knight's move (in chess) may not contain the same digit.
Anti-king: Cells separated by a king's move (in chess) may not contain the same digit.
Non-consecutive: Orthogonally adjacent cells may not contain consecutive digits.
Killer: Digits in a cage sum to the small clue in the cage's top-left corner. Digits may not repeat within a cage.
Solve online in SudokuPad.
Solution code: Row 2
Comments
on 28. October 2026, 17:16 by VitP
only TWO colours needed. 69 pair located across entire grid. 3 placed. remaining digits written in directly.
on 28. October 2026, 04:46 by Pairot
I forgot about the non-consecutive rule for the longest time. Fun colouring exercise!
on 27. October 2026, 22:11 by brkmmo
what a treat!
on 27. October 2026, 20:44 by Vaurien
If you know how anti-king and anti-knight force the grid, this is a very easy puzzle... if not, you're in for a world of hurt. :) Wonderful puzzle, though!
on 27. October 2026, 20:14 by abw
A fun colouring puzzle. Not too hard if you're familiar with anti-knight and anti-king constraints. I got stuck at one point because I forgot the anti-consecutive constraint for orthogonally adjacent cells!
