I made up an idiom that I think describes what I want to say quite nicely:
"If one shoots enough arrows at the target, one is sure to hit the bull's eye."
An actual English idiom I know of that is close in meaning is:
"Throw enough mud at the wall and some of it will stick"
However, the conceptual image is not as matching, and according to Wiktionary it has a second meaning:
If enough (perhaps false or reckless) accusations are made against someone, his reputation will suffer, whether or not this is deserved.
But I want the idiom to paint a positive image. For example, I would say the idiom when I help someone remember something by giving it a shot in the dark and getting it right miraculously after some guesses.
What is the English idiom I'm looking for?