Hidden Pair
A Hidden Pair is a Hidden Subset of size 2.
When all candidates for 2 digits in a house are limited to only 2 cells, these cells must contain these 2 digits. Subsequently, all remaining candidates can be removed from these 2 cells.
Example
The following example shows a Hidden Pair in the second row, for the digits 1 and 7. The red candidates can be eliminated.
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
