adjustable_board_size.rb

  def create_board_hash
    new_board    = Hash.new
    alpha        = 'A'
    numeric      = 1
    num_of_rows.times do
      num_of_rows.times do
        key       = numeric.to_s + alpha
        numeric  += 1
        new_board[key] = nil
      end
      alpha   = alpha.next
      numeric = 1
    end
    new_board
  end

  def get_winning_lines
    lines = []
    winning_rows.each { |row| lines << row }
    winning_cols.each { |col| lines << col }
    winning_diagonals.each { |diagonal| lines << diagonal }
    lines
  end