Normal Sudoku rules.
Kropki
Cells connected by a white dot contain consecutive digits. Cells connected by a black dot contain digits in a 1:2 ratio. Not all possible dots are given.
Difficulty is probably more like 3.5 stars.
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Solution code: row 1 and column 9
on 19. February 2024, 16:00 by JumpInSide
a pretty much straight forward puzzle but was fun to solve
on 10. April 2023, 00:24 by dennischen
Unexpectedly difficult for a pure kropki puzzle, especially with no negative constraint :) loved this puzzle, thanks!
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