Tried the demo, interface is very simple. It is my first time seing a game like this so we just need to guess from number 1 to 5? What about the minimum bet? Is it 1Bitcoin or it is just for demo?
It's entirely depends on the range you selected in the game where the range in the demo when I was testing how the game works and the range is 2 where either 1 or 2 is the correct answer which the winning percentage is about 50% and same as the chance of losing. Range starting from 2 to 5. Winning percentage of 2 to 5 range in my opinion is about 2 = 50%, 3 = 40%, 4 = 30%, 5 = 20% anyway I don't know the real but that's how much percentage of winning that a gamblers had when playing games like this.