whether to play blackjack using the martingale system is very good?
I tried, but I lost. probably due to lack of large capital
Its not bad, but its still a gamble. And I think, since blackjack has a higher edge than dice or any other gamble, so its better to play something where edge is lesser, if you intend to martingale. But in the end, martingale is not a winning strategy in the long run.