Tattooed Angel

Teenaged chess champion, Stacy Goldman, has a vampire problem. While fighting to prove monsters didn't exist, she stumbled into the dangerous heart of Richmond's secret, supernatural subculture. Now, she's a target. On top of that, her science fair partner has a secret that could cost them not only the win, but their lives. . .
From the back of the book:
Richmond, Virginia has a dangerous secret. I played chess with the wrong vampire and now she's out for my blood. Plus, the angel who Finder thinks saved us in the opening doesn't seem to be around to play the middle game at all. So when my assigned science fair partner turns out to have secrets of her own that could cost us not only our win, but our lives, and my father finds out the boy I'm dating is in college, and Steve's Apple Squirrel Girl comes down with a strange sickness that interferes with her shapeshifting, everything becomes, as Finder would say, "a righteous mess."

Welcome to the middle game.
The middle game is where the layers are.
The middle game is what gets you killed.