Sudoku Solution Set the problem 1 2 3 4 5 0 0 0 0 0 6 7 8 9 0 0 0 0 81 Set from text Solve Settings 0. Fill the unique candidate 1. Fill the unique cell 2. Shared cells 3. Twin cells 4. Triplet cells 5. X-Wing 6. Ariadne's thread (single) 7. Ariadne's thread (double)