"sophisticated challenge" is correct and usable in written English.
You could use it in a sentence such as: "Alice faced a sophisticated challenge when she had to solve the complicated math problem."
Each is set to a different composer and presents a highly sophisticated challenge to its interpreters.
This time, after years of near misses and disappointments, Djokovic was initially set to cope with the sophisticated challenge of Roger Federer, as well as a resurgent drive by Nadal, winner of nine titles here and desperate for double figures after an encouraging lift in form during the past month or so.
Perhaps the biggest — if not the most philosophically sophisticated — challenge to Lewis's theory is "the incredulous stare", i.e., less colorfully put, the fact that its ontology is wildly at variance with common sense.
Your friend can chase you and make an amusing parody out of the traditional methods of getting rid of vampires (note that some modern renditions of vampires cease to use some of the traditional vampire frighteners, reflecting a more sophisticated challenge).
The proposed scheme is carefully and successfully tested in various simulations posing rather sophisticated challenges both to its navigation and formation control subaspects.
With this kind of brute force, many difficult problems can now be solved quickly which has allowed Henderson to focus on more sophisticated challenges.
For Wheeldon to find a cast who could deliver all these elements, however, was a real issue: he needed performers who could act, sing and dance their way through the sophisticated challenges of his choreography.
Trefler: We are pleased analysts and our customer base see us as a leader in this space, particularly for organizations facing sophisticated challenges that are trying to do something special with their customers.
This international conference for senior-level tech marketing professionals goes beyond basics to tackle sophisticated challenges.
Although the AI isn't amazing, the array of available vehicles, including both air and ground options, made this a surprisingly sophisticated tactical challenge on a machine better known at the time for brawlers and shooters.
Although we are a very sophisticated society, challenging that idea is like challenging God.
