Last Digit
When there is only one instance of a digit missing in the grid, it can only go into a single cell. This is the Last Digit.
The Last Digit is a Hidden Single in all its houses. It is easily spotted with Cross-Hatching.
Sudoku Games
- Sudoku 9981
- Samurai Sudoku
- Sudoku2PDF Pro
- Sudoku2PDF
- Printable samurai sudoku
- Word Sudoku to Learn French (German , Spanish)
Sudoku strategies
- Coloring
- Singles
- Fish
- Chains and Loops
- Intersections
- Subsets
- Wings
- Single Digit Patterns
- Uniqueness
- Almost Locked Sets
