Related Clues:
- Where queens are most powerful
- It entails taking men on board, ending with mate
- Game of skill
- Game with a blitz variety
- 'The Queen's Gambit' game
- "The gymnasium of the mind," per Blaise Pascal
- "The Queen's Gambit" game
- Activity with castles
- Game with a puck
- Game with queens and knights
- In which 'essence' is an intellectual pursuit
- It has thousands of openings
- A game with mates
- Game with six men we know initially -- but one's 11
- Xie Jun's game