Re: question about the hobbit chapter 10: riddles in the dark
Originally Bilbo still found the ring in the dark, Gollum still thought he had it and bet it on the riddle game. When he couldn't find his ring Bilbo allowed him to show him the way out instead.
The book "A Tolkien Compass" by Jared Lobdell contains a number of studies and essays by other writers on Tolkien's work. One of them discusses the changes in the Hobbit and in particular how it changed Gollum's character. It's in Chapter 2 - "Gollum's Character Transformation in The Hobbit" by Bonniejean Christensen. It includes copies of the relevant parts before and after the editing took place in the second edition.
[FONT=Trebuchet MS]"You can't fight the Enemy with his own Ring without turning into an Enemy" - J.R.R. Tolkien, Letter # 81