partial void ButtonSix_TouchUpInside(UIButton sender)
{
if (counter == 0)
{
ButtonSix.SetTitle("X", UIControlState.Normal);
ButtonSix.SetTitleColor(UIColor.Black, UIControlState.Normal);
counter++;
}
else if (counter == 1)
{
ButtonSix.SetTitle("O", UIControlState.Normal);
ButtonSix.SetTitleColor(UIColor.Black, UIControlState.Normal);
counter--;
}
ButtonSix.Enabled = false;
checkit();
}
