Related Clues:
- Game with kings and queens
- Its openings are often studied
- Game with knight moves
- Knight's activity?
- Activity requiring four bishops
- "Don't touch that ___!"
- Possessive sort?
- "The Exorcist" foe
- Spassky's passion
- Primitive timekeeper
- Phone, perhaps
- Pastime with pawns
- Minion of Mephistopheles
- Succubus
- __-up: slow Web connection