Public MustInherit Class Piece
    MustOverride Function CalculateMove(UsedBoard As Board, SourceSquare As Point) As List(Of Point)
    Protected Function CheckWithinArray(Destination As Point) As Boolean
        If (Destination.X >= 0 And Destination.X <= 7) And (Destination.Y >= 0 And Destination.Y <= 7) Then
            Return True
        End If
        Return False
    End Function
End Class