What is Whichever?
Whichever is pron 1. any one in a group You can take several routes, but whichever you choose, the journey will still take three hours. 2. (emphatic form of ‘which’) no matter which Take whichever one you want. (adj) no matter which Whichever newspaper you read, you’ll get the same story.
source: Easier English, Student Dictionary Upper Intermediate Level