Kropki Sudoku
The rule: Black dot: one digit is double the other. White dot: consecutive. No dot: neither.
Play unlimited Kropki puzzles free — every one generated with a unique solution, rated by the solving techniques it actually needs.
- Four difficulties, from gentle to expert
- Step-by-step hints that teach, not just tell
- Interactive lessons and a daily race
- Make and share your own puzzles
Kropki sudoku puzzles in the library
- Double or Nothing — Sudoku·AD
- Fair Punctuation — Sudoku·AD
- Fair Beads — Sudoku·AD
- Fair Dots — Sudoku·AD
- Middle Chain Link — Sudoku·AD
- Middle Contact — Sudoku·AD
- Middle Morse — Sudoku·AD
- Middle Punctuation — Sudoku·AD
- Middle Beads — Sudoku·AD
- Middle Dots — Sudoku·AD
- Steady Chain Link — Sudoku·AD
- Steady Contact — Sudoku·AD
- Steady Morse — Sudoku·AD
- Steady Punctuation — Sudoku·AD
- Steady Beads — Sudoku·AD
- Steady Dots — Sudoku·AD
- Kind Beads — Sudoku·AD
- Kind Dots — Sudoku·AD
- Easy Chain Link — Sudoku·AD
- Easy Contact — Sudoku·AD
- Easy Morse — Sudoku·AD
- Easy Punctuation — Sudoku·AD
- Easy Beads — Sudoku·AD
- Easy Dots — Sudoku·AD
- Soft Chain Link — Sudoku·AD
- Soft Contact — Sudoku·AD
- Soft Morse — Sudoku·AD
- Soft Punctuation — Sudoku·AD
- Soft Beads — Sudoku·AD
- Soft Dots — Sudoku·AD
- Gentle Chain Link — Sudoku·AD
- Gentle Contact — Sudoku·AD
- Gentle Morse — Sudoku·AD
- Gentle Punctuation — Sudoku·AD
- Gentle Beads — Sudoku·AD
- Gentle Dots — Sudoku·AD
- Spot the Difference — Sudoku·AD
- Neighbours — Sudoku·AD
- Dotted Line — Sudoku·AD
- Black and White — Sudoku·AD