public Checkers3()
  {
     b = new Board();
    //fill with red
    int z = 0;
    for(int row = 0; row < 3; row++)
    {
      for(int col = z; col < 8; col+= 2)
      {
        b.Put(row, col, 2);
      }
      
      if(z == 0)
      {
        z++;
      }else
      {
        z--;
      }
    }//end adding red
    //fill with black
    for(int row = 5; row < 8; row++)
    {
      for(int col = z; col < 8; col+= 2)
      {
        b.Put(row, col, 1);
      }
      
      if(z == 0)
      {
        z++;
      }else
      {
        z--;
      }
    }//end adding black
  }