DeJoker says:
I could use some help describing this Stunt (or at least I thinks its a Stunt) --
Obsessive Puzzle Solver
I was thinking he might constantly be solving puzzles as via Background Processing but I do not think that would then be compellable as you kind of wanted it to be.
Also is there a benefit to having a positive ability have a drawback ??
Yes, Obsessive Puzzle Solver was a suggestion for an Aspect, not a stunt/power. You want Aspects to have a positive and negative sides to fuel the Fate Point economy. For you, having an aspect apply positively gives you the ability to invoke it by spending a Fate Point and gain a +2 to your roll or re-roll all together (and you get to make that decision after the results of the roll are known, so sometimes it is better to take the +2, sometimes you want to just re-roll.)
You want them to have "negative" sides so that I can compel them, giving you a choice between doing what you want vs. doing what I want and getting paid with a Fate Point you can turn around and use to get bonuses on other actions.
In this specific example, let's say your PC walks into a crime scene. There's a dead body in the middle of the floor, most of the room looks ransacked, but over under the unbroken window there is a pile of glass shards. Now, the most evidence might be found on the body itself, but I can compel your Obsessive Puzzle Solver aspect to get you to focus on the glass and try to put it back together, or understand how it got there. In this scenario it was a little glass unicorn figurine. The killer leaves one at the scene of his murders. This time it fell off the window ledge because of road construction below. The cops have three other scenes with the same unicorn figurines, it's not news to them. While you waste your time putting together the glass shards, the cops have finished processing the scene. You probably gained their ill will for focusing on a non issue, making future interactions harder.
(Note*:You may also decline a compel by paying me a Fate Point when i offer you one)