public void PlayAt(int row, int col, int mode)
{
if (mode == 1)
{
BoardChessOffline.PlayerPlayAt(row, col);
}
else if (mode == 2)
{
BoardChessOffline.PCVsPlayerPlayAt(row, col);
}
else if (mode == 3)
{
Socket.PlayAt(row, col);
}
}