Disjoint Groups Sudoku
The rule: Cells in the same position within their box cannot repeat — the nine top-left cells hold 1-9, and so on.
Play unlimited Disjoint Groups 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