ball.game.sudoku

Class RuleOfUniqueness

java.lang.Object

ball.game.sudoku.Rule

ball.game.sudoku.RuleOfElimination

ball.game.sudoku.RuleOfUniqueness

@ServiceProviderFor(value=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.

Version:

$Revision: 5285 $

Author:

Allen D. Ball

Constructor Summary

Constructors

Constructor and Description
RuleOfUniqueness()

Method Summary

Modifier and Type	Method and 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.