It doesn't matter if you play the game once or 1000 times, the winning ratio is always going to be (4/10). You might get a luck streak and make some money, but the longer you play, the closer your going to get to that 40% win average. Aside from a lucky roll, there is no way to win money playing the game for a long period of time. if you lost 999 games in a row, doubling your bet each time, but won the 1000th game, you would be ahead