Normal Sudoku Rules Apply. Place the digits 1-9 in each row, column, and box.
Anti-Knight: Cells that are a Knight's move apart (in chess) may not contain the same digit.
Repeater lines: every digit on a red line must occur more than once on that line.
Quadruples: Digits in a Quadruple circle must be placed at least once in the four cells touching that circle.
This is a sequel to Repeater Lines,
If you like this puzzle, you may enjoy some of my other puzzles too, click HERE to see the other puzzles I have made.
Solution code: Row 9
on 11. February 2025, 18:21 by illandres
Felt truly accomplished when I conquered this one! Thank you for setting!
on 11. February 2025, 17:46 by BorisTheSnake
Nice interactions.. thank you!
on 9. February 2025, 16:49 by Elker
Very fun constraint. Thanks for setting
on 9. February 2025, 05:46 by The Bard
updated description
on 9. February 2025, 05:32 by aidan
needs a description for quads :)
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You are correct! All fixed. Sorry and thanks!
The Bard
on 9. February 2025, 00:12 by Chris4927
My board looked like Joseph’s coat by the end of it, but enjoyable regardless