David Schuetz << How to Lose $1000 in Vegas Without Even Gambling >>ShmooCon 2012 Puzzle Slides BlackHat 2011 Fidelis Puzzle - Archived Comments Tue, Aug 30, 2011 - ∞ - bh11-fidelis-puzzle Will Irace (@spblat) August 30, 2011 at 9:35 pm I am so glad our puzzle grabbed your brain and wouldn’t let go. :-) Thanks for a killer writeup.