Digital Lottery

Game Rules:
• Select 1-5 numbers (0-9)
• Lottery number source: Last digit of BTC/USDT real-time price
• Direct Draw: Win if the drawn number matches any of your selected numbers
• Payout rates decrease with number selection:
  - Select 1 number: 1 pays 9 (10% win rate)
  - Select 2 numbers: 1 pays 4 (20% win rate)
  - Select 3 numbers: 1 pays 2.5 (30% win rate)
  - Select 4 numbers: 1 pays 1.8 (40% win rate)
  - Select 5 numbers: 1 pays 1.5 (50% win rate)