private void boton2_Click(object sender, EventArgs e)
{
//boton2.Enabled = false;
Crossword medio = new Crossword(2);
medio.ShowDialog();
}
private void boton3_Click(object sender, EventArgs e)
{
//boton3.Enabled = false;
Crossword dificil = new Crossword(3);
dificil.ShowDialog();
}
private void boton1_Click(object sender, EventArgs e)
{
Crossword facil = new Crossword(1);
//boton1.Enabled = false;
facil.ShowDialog();
}