So I agree with person who said that the best strategy is to stop and withdraw the profit.

I've watched a guy on Yolodice (Marcel0000 (18052)) - who played for about 10-12 days. His profit was a 0.5BTC (you can got to yolo and click Find People button).

After he won - he either changed nickname or website

He used some sort of modified 99x strategy, which was about impossible to crack only looking on betting stats.

That was impressive