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Class: PuzzleSolvers.No2x2sConstraint

Summary

Describes a constraint that prevents a specified set of values from forming a 2×2 area within a 2D grid.

Constructors

No2x2sConstraint(int width, int height, params int[] values)
 Describes a constraint that prevents a specified set of values from forming a 2×2 area within a 2D grid.

Instance methods

ConstraintResult
Process(SolverState state)
Refer to the documentation for Constraint.Process.

Static methods

int
TranslateCoordinate(string str, int gridWidth = 9)
 Converts a convenient coordinate notation into a puzzle-grid index.
IEnumerable<int>
TranslateCoordinates(string str, int gridWidth = 9)
 Converts a convenient coordinate notation into puzzle-grid indices.

Instance properties

int[]
AffectedCells
The group of cells affected by this constraint, or null if it affects all of them.
bool
CanReevaluate
 By default, a constraint is only evaluated once for every digit placed in the grid, but not when another constraint merely rules out a possibility. Derived types can override this and return true to indicate to the solver that the constraint should be reevaluated (meaning: have Constraint.Process(SolverState) called on it again) when another constraint rules out a value in one of the affected cells of this constraint.
int
Height
Height of the puzzle grid.
int?
NumCombinations
 Indicates an approximate number of possible combinations of digits this constraint can still accommodate. This will help the solver prioritize cells when multiple cells have the same number of combinations individually.
int[]
Values
The set of values that cannot form a 2×2 area.
int
Width
Width of the puzzle grid.