java.lang.Object
- io.github.skenvy.Sudoku

```
public class Sudoku
extends Object
```

Nested Class Summary

Nested Classes
Modifier and Type Class Description

class Sudoku.InvlalidSudokuCongiguration
Used for sudoku related exceptions.

Field Summary

Fields
Modifier and Type	Field	Description
`int[][][][]`	`board`	The known and determined values that populate the grid.
`boolean[][][][]`	`cellFilled`	Whether a cell is filled or not.
`boolean[][][][]`	`errorInSquare`

Constructor Summary

Constructors
Constructor Description

Sudoku()

Sudoku(int size)

Sudoku(int[][][][] boardIn)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`boardCheckComplete()`
`void`	`boardCheckErrors()`
`int`	`boardCheckPlacesFilled()`
`boolean`	`boardCheckValid()`
`boolean`	`checkSoleCandidate()`
`boolean`	`checkUniqueCandidate()`
`void`	`deliminatePotential(int k0, int k1, int k2, int k3, int k4)`
`String[]`	`digestAsArray()`
`boolean`	`errorExists()`
`boolean`	`initialiseBoard()`
`void`	`initialiseNumberPresentGridRowCol(boolean clear)`
`void`	`initialisePlaceCanContain(boolean clear)`
`void`	`initialisePlaceFilled()`
`int`	`iterateReductionOfCanContainInGridByRowCol()`
`int`	`iterateReductionOfCanContainInRowColByGrid()`
`int`	`iterateReductionOfCanContainSubsetHidden()`
`int`	`iterateReductionOfCanContainSubsetVisible()`
`int`	`iterateSoleCandidate()`
`int`	`iterateUniqueCandidate()`
`static void`	`main(String[] args)`
`String[]`	`operationsAsArray()`
`boolean[]`	`placeCanContainCheckCollision(int j0, int j1, int j2, int j3, int k0, int k1, int k2, int k3)`
`boolean`	`placeCanContainCheckDoesCollide(int j0, int j1, int j2, int j3, int k0, int k1, int k2, int k3, int collisions)`
`void`	`printBoardOut()`
`void`	`printDigest()`
`void`	`printOperations()`
`void`	`readBoardIn(String[] boardRows)`
`boolean`	`reductionOfCanContainInGridByRowCol()`
`boolean`	`reductionOfCanContainInRowColByGrid()`
`boolean`	`reductionOfCanContainSubsetHidden()`
`boolean`	`reductionOfCanContainSubsetVisible()`
`void`	`solveBoard()`
`boolean`	`solveBoardEasy()`
`boolean`	`solveBoardHard()`
`boolean`	`solveBoardModerate()`
`int[]`	`subsetCollisionAt(int subsetSize, int numberOfTrueSubsets, int[] subsetFoundAt, int[][][] subsets)`
`void`	`subsetCollisionAtRolling(int subsetSize, int numberOfTrueSubsets, int[] subsetFoundAt, int[][][] subsets)`
`void`	`textFieldAdd(String a)`
`void`	`updateNumberPresentGridRowCol()`
`void`	`updatePlaceCanContain()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- board
```
public int[][][][] board
```
  The known and determined values that populate the grid. Is initialised with the already known cell values, and is then populated with those determined through solving.
- cellFilled
```
public boolean[][][][] cellFilled
```
  Whether a cell is filled or not.
- errorInSquare
```
public boolean[][][][] errorInSquare
```

Constructor Detail

Sudoku
```
public Sudoku()
```

Sudoku
```
public Sudoku(int size)
```

Sudoku

public Sudoku(int[][][][] boardIn)
       throws Sudoku.InvlalidSudokuCongiguration

Throws:: Sudoku.InvlalidSudokuCongiguration

Method Detail

main

public static void main(String[] args)

readBoardIn

public void readBoardIn(String[] boardRows)

printBoardOut
```
public void printBoardOut()
```

initialiseBoard
```
public boolean initialiseBoard()
```

initialisePlaceFilled
```
public void initialisePlaceFilled()
```

initialisePlaceCanContain

public void initialisePlaceCanContain(boolean clear)

updatePlaceCanContain
```
public void updatePlaceCanContain()
```

initialiseNumberPresentGridRowCol

public void initialiseNumberPresentGridRowCol(boolean clear)

updateNumberPresentGridRowCol

public void updateNumberPresentGridRowCol()

boardCheckValid
```
public boolean boardCheckValid()
```

boardCheckErrors
```
public void boardCheckErrors()
```

errorExists
```
public boolean errorExists()
```

boardCheckComplete
```
public boolean boardCheckComplete()
```

boardCheckPlacesFilled
```
public int boardCheckPlacesFilled()
```

printDigest
```
public void printDigest()
```

digestAsArray
```
public String[] digestAsArray()
```

printOperations
```
public void printOperations()
```

operationsAsArray
```
public String[] operationsAsArray()
```

textFieldAdd

public void textFieldAdd(String a)

solveBoard
```
public void solveBoard()
```

solveBoardEasy
```
public boolean solveBoardEasy()
```

solveBoardModerate
```
public boolean solveBoardModerate()
```

solveBoardHard
```
public boolean solveBoardHard()
```

iterateSoleCandidate
```
public int iterateSoleCandidate()
```

checkSoleCandidate
```
public boolean checkSoleCandidate()
```

iterateUniqueCandidate
```
public int iterateUniqueCandidate()
```

checkUniqueCandidate
```
public boolean checkUniqueCandidate()
```

iterateReductionOfCanContainInRowColByGrid

public int iterateReductionOfCanContainInRowColByGrid()

reductionOfCanContainInRowColByGrid

public boolean reductionOfCanContainInRowColByGrid()

iterateReductionOfCanContainInGridByRowCol

public int iterateReductionOfCanContainInGridByRowCol()

reductionOfCanContainInGridByRowCol

public boolean reductionOfCanContainInGridByRowCol()

iterateReductionOfCanContainSubsetVisible

public int iterateReductionOfCanContainSubsetVisible()

reductionOfCanContainSubsetVisible

public boolean reductionOfCanContainSubsetVisible()

iterateReductionOfCanContainSubsetHidden

public int iterateReductionOfCanContainSubsetHidden()

reductionOfCanContainSubsetHidden

public boolean reductionOfCanContainSubsetHidden()

deliminatePotential

public void deliminatePotential(int k0,
                                int k1,
                                int k2,
                                int k3,
                                int k4)

subsetCollisionAt

public int[] subsetCollisionAt(int subsetSize,
                               int numberOfTrueSubsets,
                               int[] subsetFoundAt,
                               int[][][] subsets)

subsetCollisionAtRolling

public void subsetCollisionAtRolling(int subsetSize,
                                     int numberOfTrueSubsets,
                                     int[] subsetFoundAt,
                                     int[][][] subsets)

placeCanContainCheckDoesCollide

public boolean placeCanContainCheckDoesCollide(int j0,
                                               int j1,
                                               int j2,
                                               int j3,
                                               int k0,
                                               int k1,
                                               int k2,
                                               int k3,
                                               int collisions)

placeCanContainCheckCollision

public boolean[] placeCanContainCheckCollision(int j0,
                                               int j1,
                                               int j2,
                                               int j3,
                                               int k0,
                                               int k1,
                                               int k2,
                                               int k3)

Constructors
Constructor	Description
`Sudoku()`
`Sudoku(int size)`
`Sudoku(int[][][][] boardIn)`

Class Sudoku

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

board

cellFilled

errorInSquare

Constructor Detail

Sudoku

Sudoku

Sudoku

Method Detail

main

readBoardIn

printBoardOut

initialiseBoard

initialisePlaceFilled

initialisePlaceCanContain

updatePlaceCanContain

initialiseNumberPresentGridRowCol

updateNumberPresentGridRowCol

boardCheckValid

boardCheckErrors

errorExists

boardCheckComplete

boardCheckPlacesFilled

printDigest

digestAsArray

printOperations

operationsAsArray

textFieldAdd

solveBoard

solveBoardEasy

solveBoardModerate

solveBoardHard

iterateSoleCandidate

checkSoleCandidate

iterateUniqueCandidate

checkUniqueCandidate

iterateReductionOfCanContainInRowColByGrid

reductionOfCanContainInRowColByGrid

iterateReductionOfCanContainInGridByRowCol

reductionOfCanContainInGridByRowCol

iterateReductionOfCanContainSubsetVisible

reductionOfCanContainSubsetVisible

iterateReductionOfCanContainSubsetHidden

reductionOfCanContainSubsetHidden

deliminatePotential

subsetCollisionAt

subsetCollisionAtRolling

placeCanContainCheckDoesCollide

placeCanContainCheckCollision