Related Clues:

• Whodunit board game
• CTRL, e.g.
• Movie based on a board game
• Integral
• "Defense of Fort M'Henry" writer
• This line or the next
• G, but not H
• Mustard and Plum game
• Decoder's tool
• Mrs. Peacock's game
• C minor, for one
• Footprint or thumbprint, perhaps
• Answer sheet
• Detective's discovery
• A flat, e.g.