A colored square can only contain one of two digits, and those digits may not appear in a square of a different color.
White squares may contain any digit.
The sum of a color's digit pair is the same for all colors.
The sum of digits in cages is the same for all cages.
Normal Sudoku rules apply.
Try it at F-Puzzles.
Solution code: Digits from last row.
on 13. February 2023, 09:03 by zrbakhtiar
deadly pattern on 2s and 3s
on 22. January 2021, 19:47 by panthchesh
Thanks for the puzzle! :)