From: "ernie n." <lists@...>
Date: 2013-04-12T12:50:25+09:00
Subject: Re: using an instance variable inside a method

I'm a couple weeks as a Ruby newby ... writing a fun puzzle and ran into 
an issue I don't understand (read lots of books and searched ...).
==
class Board
  attr_accessor :type, :b, :p, :audit

  def initialize(type)
    @audit = Array.new
    @type = type            # either 9 or 10 depending on puzzle type!
    @b = Hash.new(:OOB)  # default for OOB
    @p = Array.new    # position of all the Pieces within the block
    if(type == 9)
      p[6] = Piece.new(6,1,1,:Obt)
      p[7] = Piece.new(7,2,1,:Obt)
    else
...
==
Why can I access p[6] without the "@" within the class?  I've run this 
in pry/irb and the p array looks the same regardless how I reference it 
- either @p or p.  What's up here?

Thx

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