What word can I use in place of the idiom "rack one's brain," which means to strain in mental effort, esp to remember something (from Collins)?
For instance, a teacher put a chalk box in the principal's office yesterday, but today he is trying his level best to remember where he put that box.
Can I use the verb remind along with a reflexive pronoun, as in: "he reminded himself... ."
- A teacher [verb] for where he put that box.
The post (here), which was proposed as duplicate to this question, is irrelevent here. I am just asking about a verb which denotes thinking very hard to remember anything, not the verb that denotes solving problems, like in Maths.
Have a look at this image.