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Class: PuzzleSolvers.TwoCellLambdaConstraint

Summary

Constrains two cells to values that satisfy a lambda expression.

Constructors

TwoCellLambdaConstraint(int affectedCell1, int affectedCell2, Func<int, int, bool> isValid)
Constructor.

Instance methods

ConstraintResultOverride; see base.

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[]The group of cells affected by this constraint, or null if it affects all of them.
bool 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.
Func<int, int, bool>A function that determines whether a pair of values is valid in the relevant cells.
int? 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.