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SudokuHints

Guides

  • Sudoku Hints

Tech Notes

  • Logical Rules for Solving a Sudoku
  • Representation of a Sudoku
  • String Representation of a Sudoku

Symbols

  • BackTracking
  • bla
  • CandidateSet
  • CellSize
  • Clues
  • ColoredCells
  • ColoredGroupColor
  • ColoredGroups
  • CommonCellColor
  • ConjugateLists
  • DiskCells
  • Disks
  • DoubleCandidate
  • DoubleCandidate
  • EditClues
  • EditColoredGroups
  • EditLineGroups
  • EditOutlinedGroups
  • EditSudoku
  • EnterClues
  • EnterSudoku
  • ExcludeCommonCells
  • ExportSudoku
  • ExtendSudoku
  • ExtraBlockCellColor
  • ExtraBlocks
  • GenerateSudokus
  • HiddenPair
  • HiddenPairs
  • HiddenQuadruple
  • HiddenQuadruples
  • HiddenSingle
  • HiddenSingles
  • HiddenTriple
  • HiddenTriples
  • Hints
  • IncludeCandidates
  • LineGroups
  • LockedCandidates
  • MaxClues
  • MaxSolutions
  • MaxSteps
  • MonitorSteps
  • NumericalString
  • OutlinedGroups
  • Pair
  • Pairs
  • QuadrupleCandidate
  • Quadruple
  • ReduceClues
  • ReduceSudoku
  • SetDisplay
  • SetDisplayOptions
  • SetSdokuOptions
  • SetSudokuOptions
  • ShowCandidates
  • ShowInfo
  • Single
  • Singles
  • SolveSudoku
  • SudokuFromString
  • SudokuHints
  • SudokuInfo
  • Sudoku
  • SudokuToString
  • SwordFish
  • ThreeGroups
  • TripleCandidate
  • Triple
  • Triples
  • XRule
  • XXXMaxSteps
  • XYChain
  • XYZWing
  • YWing
  • ZZZExtraBlocks
  • ZZZLockedCandidates
  • $AllRules
  • $Sudoku
FredSimons`SudokuHints`
Quadruple
​
Quadruple
[sudoku,pos]
shows the reductions at the given position due to a quadruple.
​
Details and Options

Examples  
(1)
Basic Examples  
(1)
In[1]:=
Quadruple
["EiPMlgz3Loi90Wv2bdo7C2cU&MZkY60%swqKgDA6TNra|4a#8mb$MM5iyPFgpIbLPmmrOzvYNQ1&I9smDx35sYmnZ1IqTFBGFY!zuGVhRb8deOm@Xtx$uqr0#noexVsyNk&6&X#4p4hkkHQ1#av2i2Z#Mmsu#LVF!uE",{3,4}]
Out[1]=
Contents cannot be rendered at this time; please try again later or download this notebook for full functionality »
Quadruple-1246: R3C3(7,8), R3C4(5,9), R3C6(5,7,8,9), R3C8(9)
In the third row, the only candidates in the four yellow cells are 1, 2, 4 and 6. So they have to be placed in these four cells and therefore can be removed from all cells that see the yellow cells, in particular from the green cells.
SeeAlso
SudokuInfo
 
▪
$AllRules
TechNotes
▪
Logical Rules for Solving a Sudoku
RelatedGuides
▪
Sudoku Hints
""

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