1) These two factors combined to make the problem insolvable.

2) Kieslowski handles the most insolvable ethical dilemma here.

3) There are some insolvable problems facing the music education in regular schools. There is a popular saying that students are fond of music but take no interest in music lessons.

4) Pigment is insolvable. So choose the ink which is easily dispersable.

5) Von Neumann was particularly interested in seeing if he could develop optimal strategies for these kinds of mutual games, because at first glance they seemed almost insolvable in theory.

6) As an ethical concept, the metaphysical concept of "fidelity" tries to fetter translation onto the two poles of "faithful" and "unfaithful", thus incurring a number of insolvable problems.