Tattooed Angel - J. S. Furlong - Bog

Teenaged chess champion, Stacy Goldman, has a vampire problem. While fighting to prove monsters didn't exist, Stacy stumbled into the dangerous heart of Richmond's secret, supernatural subculture and 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. . .

Back of the book:
"Richmond, VA 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 or her own that cold cost us not only our win, but our lives, and my father finds out that boy I'm dating is in college, and Steve's Apple Squirrel Girl comes down with a strange illness 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.