private List <Cordinate> GetEmptyNeightbours(Cordinate cord)
{
List <Cordinate> freeNeightBours =
cord.GetNeightbours().Where(c => c.X >= 0 &&
c.X < Width &&
c.Y >= 0 &&
c.Y < Height &&
Board[c.Y][c.X].State == FieldStateEnum.Empty).ToList();
return(freeNeightBours);
}
