Pokémon GO attack party optimization

We designed distributed architectures, highly available and resilient systems, reactive interfaces & what are they for? Catching Pokemons ;(
— Mario Fusco (on Twitter)

Pokémon GO, an augmented-reality mobile game recently released by Niantic, has been generating a lot of hype since it went public in the beginning of July. I was caught in it myself a few days ago and, already bored with choosing a good gym attack party by hand, I decided to apply optimization methods to this important task.