AdvanceStone returns the next point in an ordered left to right, top to bottom traversal of the grid.

Checks that a proposed solution to the problem is valid.

IsInBounds returns whether a Point is contained within a given Grid.

Separation is the squared distance between 2 grid points.

Grids larger than 14x14 are known to have no solutions.

The largest squared distance between points on a maximum sized grid.

Grid represents an NxN square grid.

Point is the coordinate of a stone on a grid.

PointIterator allows iteration over a collection of points.

Placements represents a set of stones placed on the grid.