But guys please understand that you can never beat the numbers.
It's a pretty simple question:
What strategy on a "standard dice site" has the
highest chance of turning 1 BTC into 2 BTC?
Not "how can we beat the numbers?"
Not "what team should we bet on?"
Not "what is your favourite strategy?"
The question is pretty clear, and I'm amazed how many people seem to have failed to understand it.
If there was a strategy to guaranteed win 2x or even be in the profit, casinos would be out of business and couldn't run since they couldn't maintain a neutral or positive profit over time.
OK, so you're saying the best you can do is less than 100% chance? At least we have an upper bound on it now.
Best way is 2x 50/50 chance either you win or you don't.
Well, that's not an option. The dice site has a 1% edge, so you can get 2x at 49.5% or 1.98x at 50%. 2x at 50/50 would be a 0% edge. Also it has been shown above that you can do better than a single 2x bet.
Slower way is to compound loan.
Again, that's not allowed. The question states that you have to play on the dice site.