51 Disjoint Knights
(Published on 9. July 2021, 13:41 by FinnishGuy)
51 Disjoint Knights
Rules:
1. Standard: Normal sudoku rules apply.
2. Standard anti-knight: Digits cannot be placed within a knight's move (in chess) apart from the same digit.
3. Standard disjoint groups: Cells in the same relative position in each box cannot contain the same value. For example, R1C1 and R4C4 must be different values.
4. Standard killer: Cells in cages must sum to the total of the cage.
5. Standard arrow: Cells along an arrow must sum to the total in the arrow's circle.
6. Standard little killer: Cells along the indicated diagonal must sum to the total indicated, and may include repeated digits if allowed by other rules.
7. Standard extra region: Shaded areas are extra regions and must contain all values from 1 to 9.
Solution code: Row 5 + Column 5, 18 digits, no spaces or commas
