Class: PuzzleSolvers.Exotic.NeighborSumConstraint

• Assembly: PuzzleSolvers, Version=1.4.0.0, Culture=neutral, PublicKeyToken=null
• Namespace: PuzzleSolvers.Exotic
• Show inherited types...
  Inherits from:

  • PuzzleSolvers.CombinationsConstraint
    • PuzzleSolvers.Constraint
      • object

Summary

Describes a constraint as used in Neighbor Sum Sudoku by Timwi (https://logic-masters.de/Raetselportal/Raetsel/zeigen.php?id=0005NV): Each number outside the grid gives the sum of all orthogonal neighbors of one cell in the corresponding row or column. Where multiple numbers are given, the sums must be in the same order as the clues.

Remarks

This is implemented as a CombinationsConstraint, which may make it very memory-intensive on oversized puzzles.

Constructors

NeighborSumConstraint(bool isCol, int rowCol, int[] clue, IEnumerable<UniquenessConstraint> furtherRestrictions = null, int gridWidth = 9, int gridHeight = 9, int minValue = 1, int maxValue = 9)

Describes a constraint as used in Neighbor Sum Sudoku by Timwi (https://logic-masters.de/Raetselportal/Raetsel/zeigen.php?id=0005NV): Each number outside the grid gives the sum of all orthogonal neighbors of one cell in the corresponding row or column. Where multiple numbers are given, the sums must be in the same order as the clues. (see also remarks)

Instance methods

ConstraintResult	Process(SolverState state) Inherited from CombinationsConstraint Overrides: Constraint.Process(SolverState)	Refer to the documentation for Constraint.Process.
string	ToString() Inherited from CombinationsConstraint Overrides: object.ToString()	Override.

Instance properties

int[]	Clue	Specifies the set of neighbor sums. Currently only 1 or 2 numbers are supported.
bool	IsCol	Specifies whether the constraint applies to a column (true) or row (false).
int	RowCol	Specifies the affected row or column (depending on NeighborSumConstraint.IsCol).