com.act365.sudoku
Class MostCandidates

java.lang.Object
  com.act365.sudoku.StrategyBase
      com.act365.sudoku.MostCandidates

All Implemented Interfaces:

IStrategy

public class MostCandidates

extends StrategyBase

implements IStrategy

The MostCandidates strategy makes the move at any timestep that will eliminate the greatest number of remaining candidates. It is intended to be used in order to compose puzzles.

Constructor Summary

MostCandidates(boolean[][] mask, boolean randomize)

Method Summary

int	findCandidates() Finds the candidates for which nInvunerable is lowest.
void	setup(Grid grid) Sets the state variables.
boolean	unwind(int newNMoves, boolean reset) Unwinds the the thread and reinstates state variables.

Methods inherited from class com.act365.sudoku.StrategyBase

explainsReasoning, getBestReason, getBestValue, getBestX, getBestY, getLastWrittenMove, getNumberOfCandidates, getReason, getReasonCandidate, getScore, getThreadLength, getThreadX, getThreadY, getValueCandidate, getXCandidate, getYCandidate, reset, reset, selectCandidate, setCandidate, toString, updateState

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.act365.sudoku.IStrategy

explainsReasoning, getBestReason, getBestValue, getBestX, getBestY, getLastWrittenMove, getNumberOfCandidates, getReason, getReasonCandidate, getScore, getThreadLength, getThreadX, getThreadY, getValueCandidate, getXCandidate, getYCandidate, reset, reset, selectCandidate, setCandidate, toString, updateState

Constructor Detail

MostCandidates

public MostCandidates(boolean[][] mask,
                      boolean randomize)

Parameters:

mask -

randomize -

Method Detail

setup

public void setup(Grid grid)
           throws java.lang.Exception

Sets the state variables.

Specified by:

setup in interface IStrategy

Throws:

java.lang.Exception

findCandidates

public int findCandidates()

Finds the candidates for which nInvunerable is lowest.

Specified by:

findCandidates in interface IStrategy

Returns:

number of candidates

See Also:

IStrategy.findCandidates()

unwind

public boolean unwind(int newNMoves,
                      boolean reset)

Unwinds the the thread and reinstates state variables. Note that when a puzzle is created, the first value is set without loss of generality. Therefore the thread is only ever unwound until a single move remains.

Specified by:

unwind in interface IStrategy

Overrides:

unwind in class StrategyBase

See Also:

IStrategy.unwind(int,boolean)