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
- Sudoku Printer
- Word Sudoku to Learn English
Word Sudoku to Learn Chinese
Word Sudoku to Learn French
Word Sudoku to Learn German
Word Sudoku to Learn Spanish
Free Sudoku Script for Your Website
Sudoku strategies
- Coloring
- Singles
- Fish
- Chains and Loops
- Intersections
- Subsets
- Wings
- Single Digit Patterns
- Uniqueness
- Almost Locked Sets
