difficult problem

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“It’s a notoriously difficult problem for classical computers,” Chow explained.

From Barron's • Jan. 29, 2026

“It’s a difficult problem to solve, and California is kind of solving it in real time.”

From Los Angeles Times • Nov. 26, 2025

Speaking to BBC Radio 4's Today Programme, head of the Metropolitan Police Sir Mark Rowley acknowledged the government had a "difficult problem to fix" on prison overcrowding.

From BBC • May 28, 2025

That problem of coordinating people's attention at the same time to do X is a difficult problem.

From Salon • Mar. 22, 2025

It was a difficult problem, as they did not know how many girls were in existence.

From "The Interrupted Tale" by Maryrose Wood