You are required to place a bet before rolling a 50-sided die using @FairlyRandom. After the die roll result is out, you can earn another chance to roll the die again by placing another bet. There is no limit as to how many times each player roll the die (as long as a bet is placed each time before a new die roll)

If any player rolled a 49, the market resolves to Yes.

If no one managed to roll a 49 by market closing, the market resolves to No.