A slot machine on ethereum! Spin multiple times in one transaction to save gas. Guarantee one "Luckypot" hit every 100 spins, anyone failed to hit "Luckypot" will make the chance higher. The slot also has Jackpot which hit rate is 0.1%. Most interesting is if anyone wins and the pool can't cover the winning, he/she will become a partner, partner can trigger bonus distribution any time to get bonus!