Way too addictive - Circuit Coder

Ok, let's get one thing straight. I don't do games. I spend enough time at a computer that I'd rather go out in the fresh air after hours. Hacking zombies, casting spells and boosting cars just ain't my thing.
However I do like a puzzle; Something aching to be solved. I just can't stop picking at a problem until I've understood it and solved it.

Unfortunately for me, I stumbled across Circuit Coder. Ooooh it's addictive. I've only had it on the iPad for an evening and I've already chomped through a fair chunk of the levels.

The idea of the game (and bear with me on this) is to build a circuit to solve the challenge set.
Like most of these style of puzzles, you have blocks that perform different functions that you can connect together to achieve your goal. However, unlike most, these blocks aren't paint pots, cogs or springs, but electrical circuit diagrams. Dispensing with the usual visual analogies and going straight for logical diagrams makes for a refreshing change.

The interface is clean and easy to understand, making game-play easy even if some of the challenges are deceptively difficult.
It's definitely not for everyone. If I hadn't done some electronics at uni, I'm not sure if I would have understood some of the logic gate terminology straight away. But perhaps I'm being unfair here. It's got a concise help and beginner/tutorial levels that get you into the swing of things.

If you like a challenge and don't mind looking like a geek - give it a go!