Friendly Fives
(Published on 23. January 2023, 06:54 by apiyo)
Normal Sudoku rules apply.
Knight's move constraint- Digits separated by a chess Knight's move must be different.
Positive diagonal- Digits along the marked positive diagonal must be different.
German whispers- Neighbouring digits on a green German whisper line must differ by at least 5.
Killer cage clones- The two cages share the same sum.
Friendly cells- Cells shaded green are Friendly. A friendly cell must contain either its box, row or column number.
Indexes- Red cells are indexes. The number in a red cell is the count to the location of the 5, starting from the red cell and moving towards the opposite side of the grid. For example, if R5C9 contains a 3, count three cells left and place a 5 in R5C7.
Solution code: Row 2, Column 6 (18 digits)
Comments
on 23. January 2023, 17:38 by thoughtbyte
Very nice! I loved the minimal, symmetrical design and the deductions to break it were smooth and very fun. Thanks apiyo!
