private void KingKnightStep(Board board, Figure currentFigure, char x, int y)
{
Figure f1 = board[x.ToString(CultureInfo.InvariantCulture) + y];
if (f1.GetType() == typeof(FigureNone))
Attackers[x - 'a', y - 1].Add(currentFigure);
else if (f1.Side != currentFigure.Side)
Attackers[x - 'a', y - 1].Add(currentFigure);
}