Category
Ultimate Sudoku
Ultimate Sudoku puzzles combine the rules of all other sudoku variations (Classic, Clue, Pattern, and Illusion Sudoku).
Rules
- Each row, column, and 3 × 3 subgrid must contain all digits from 1 to 9, without repetition.
- Cells with clue numbers must be filled with one of those clues. Empty cells can contain any number from 1 to 9.
- Cells with the same pattern share the same number; cells with different patterns have different numbers.
- Only one colored number is correct; the others must be replaced with different numbers.
Puzzles
60 of 60 puzzles