RuleOfUniqueness (dev.hcf.ball:ball-game API 3.0.20.20251111 API)

java.lang.Object
- ball.game.sudoku.Rule
- - ball.game.sudoku.RuleOfElimination
  - - ball.game.sudoku.RuleOfUniqueness

```
@ServiceProviderFor(Rule.class)
public class RuleOfUniqueness
extends RuleOfElimination
```
Sudoku "rule-of-uniqueness" Rule implementation. If a digit is the only possible solution for a Cell in its row, column, and 3x3 nonet once other possible solutions for the other cells in the same row, column, and nonet are removed then it must be the solution for that cell.

Author:

Allen D. Ball

- Constructor Summary
  
  Constructors
  Constructor Description
  
  RuleOfUniqueness()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  boolean applyTo(Puzzle puzzle)
  Method to apply this Rule to the argument Puzzle.
  - Methods inherited from class ball.game.sudoku.Rule
    count, solved, sum
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - RuleOfUniqueness
```
public RuleOfUniqueness()
```
- Method Detail
  - applyTo
```
public boolean applyTo(Puzzle puzzle)
```
    Description copied from class: Rule
    
    Method to apply this Rule to the argument Puzzle.
    
    Overrides:
    
    applyTo in class RuleOfElimination
    
    Parameters:
    
    puzzle - The Puzzle to solve.
    
    Returns:
    
    true if this Puzzle is modified; false otherwise.