Prime Sweeper Sudoku
(Published on 6. August 2020, 18:55 by jackisaacbryan)
1. Prime numbers cannot touch orthogonally.
2. If a cell contains a prime, the corner denotes how many of its orthogonal neighbours it is a prime factor of.
3. If a cell does not contain a prime, the corner denotes how many of its orthogonal neighbours are its prime factors.
4. The diagonals indicated must each sum to a prime number.
Link to puzzle on Penpa: https://mub.me/vj8
Solution code: The two diagonals indicated by the arrows, first the one on the left, followed by the one on the right (10 digits)
Comments
on 25. February 2024, 10:55 by zrbakhtiar
Sven's SudokuPad: https://sudokupad.app/fzjebk4g46
on 16. August 2020, 10:02 by bosjo
Great puzzle, though I wouldn't call it "fairly easy" — yes, it solves fairly smoothly once you have grasped the working of the rules, but it is easy to take a false trot on one of these easy steps...
on 10. August 2020, 18:25 by SudokuExplorer
Nice and fairly easy puzzle. :-)
Do give this one a try.
on 6. August 2020, 20:58 by jackisaacbryan
@Greg Thank you!
on 6. August 2020, 20:55 by Greg
Very nice!
