Normal Sudoku rules apply. Each row, column and 3x3 box contains each number from 1 to 9 exactly once.
Arrow Sudoku rules apply. Digits along the arrows in the grid must sum to the digit in their circle.
Ratio Sudoku rules apply. The black dots represent a 1:2 ratio between two neighbouring cells. NOT all possible black dots are indicated; a.k.a. no negative constraint.
The grey circle is an odd digit. The grey squares are even digits.
The puzzle is also available online.
Solution code: Row 3 and Row 5
on 13. March 2021, 23:05 by askel083
Thanks for the puzzle! It was very enjoyable. Perfect difficulty for me!
on 13. March 2021, 18:24 by Chadur
Great and a very fun puzzle and not too hard.
on 12. March 2021, 15:50 by BlackApolloX
Very fun puzzle; not too difficult, but with some nice logic!
on 12. March 2021, 08:10 by Enkerro
Very nice puzzle with fun logic. Thank you!