This is new as far as I can tell. Please write up a review based around this, and based on a cursory read through of Reddit, it might be best not to do this in prose, it takes even longer to evaluate apparently and Eliezer's plan has backfired
http://tvtropes.org/pmwiki/pmwiki.php/Main/GoneHorriblyRight (look at last entry in "Fan Works" tab)
I submitted it. Here's the link to my whole solution (It's long, with backup plans and a few unique mechanics) if you're interested. I'm pretty proud of it, given the time constraints.
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 113.
There is a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)
IMPORTANT -- From the end of chapter 113: