Do you think you know the San Francisco 49ers better than anyone else? Heres your chance to prove it with the San Francisco 49ers Trivia Challenge. Each trivia card contains 5 questions about the San Francisco 49ers. If a player answers a question correctly, they get to keep the card. The player with the most cards at the end wins. Includes 50 trivia cards with 250 team-specific questions. Recommended for ages 12 and up.