1. Base
Normal Sudoku rules apply.
2. Kropki Dots
Cells joined by a white dot contain consecutive digits.
Cells joined by a black dot contain digits where one is double the other.
Not all white and black dots are necessarily given.
More Kropki Sudoku puzzles
This puzzle appears as puzzle #17 in my book
128 Handcrafted Kropki Sudoku.
If you enjoyed solving it, you'll find
127 more handcrafted Kropki puzzles
in the full volume, ranging from
beginner-friendly introductions to
expert-level challenges.
Lösungscode: Digits in row 3 (left to right).