Related Clues:

• Diamond ___
• Game in which players famously cheat
• It's set in a ring
• Gem set by itself
• Two can't play at this game
• Solo pursuit
• Card game for one
• Engagement ring choice
• Ring insert
• Canfield, e.g.
• Game for one
• Card game for recluses?
• Game for the asocial
• Patience, stateside
• Card game for one player