I've been enjoying playing a couple of cerebral puzzle games on my tablet recently, mostly on my way to or from work on the bus.
I grabbed a cool shadow manipulation game called Shadowmatic, which I played a lot of until I got completely stumped. It was frustrating when I could see the shape I was supposed to make, but just hadn't twisted the objects to just the right degree. Still loads of fun, and absolutely beautiful to look at.
Rop is another puzzle game about positioning nodes and attached ropes to create set shapes. It starts off very easy, but gets difficult after a while. Or, it did for me. Claire is more spacially aware than me, and cruised through the whole thing.
And finally, the madness that is AlphaBear. This is a game where you're given a bunch of letters and you have to form words out of them, sometimes under a time limit, building bears as you go along. It's cute, fast and I'm terrible at spelling. It's free to play, with some microtransactions, but so far, all that has meant is that I'm forced to play in small bursts and let my credits recharge over time, which actually suits me well.
These make up the vast, vast majority of my gaming recently. Perfect in short bursts, or in one hand while entertaining a baby with the other.