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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`
HiddenSingles
​
HiddenSingles
[sudoku]
shows all reductions in the sudoku due to the rule hidden single.
​
Details and Options

Examples  
(1)
Basic Examples  
(1)
In[1]:=
HiddenSingles
["900050000080000000000000730070000090040210008003008040010046500800000006000003100"]
Out[1]=
R1C7(8), R4C3(8), R5C7(3)
In this example we have three hidden singles.
In column 7, the upper yellow cell is a hidden single with candidate 8. The lower yellow cell in that column is a hidden single in row 5 with candidate 3. The yellow cell in block 4 is a hidden single with candidate 8, both for row 4 and for block 4.
SeeAlso
$AllRules
 
▪
Hints
 
▪
ReduceSudoku
RelatedGuides
▪
Sudoku Hints
""

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