I like to spend time up front by solving for all the boards. This makes me more confident for selecting the correct answer and I can get through the questions faster.

However, some games have so many possibilities that it takes a significant amount of time to solve for all the boards. So, to save time, I do not solve for all possibilities. I finish the games a lot faster, but I may miss 1 or 2 questions.

My questions are: when should one simply brute force their way through the answers to save time?

Is it better to compromise accuracy to save time?

What is a happy medium?