One strategy to solve some problem or make it simpler, is to share it with someone who has a lot of knowledge about the subject. We use the idiom "Pick sb's brains" to express this way of breaking up the problem or this strategy. Another strategy is to share the problem with a group of people or friends, so that it becomes many brains unified in finding a solution for the same problem instead of 1 brain. Is there a word/expression used to refer to this strategy in English?
The typical term is crowdsourcing. A more specific term is crowdsolving:
Crowdsolving, also stylized as crowd solving, is a form of problem solving that involves the collaboration of many people, communities, groups, or resources. It is a type of crowdsourcing, with focus on complex and intellectively demanding problems requiring considerable effort, and quality/ uniqueness of contribution.
verb (transitive) To help a playwright revise a draft of (a play) by rehearsing it with actors and critiquing the results.
verb (transitive, business) To improve through collaboration.
- the act of working with another or others [many brains] on a joint project
- something created by working jointly with another or others
Mindsharing is a highly focused innovative business process where two or more people meet to share, plan and problem solve, either in person, or virtually. (UD)
Of course, this term can be considered as another definition for Crowdsourcing.