Expected difficulty Easy • Comment/E-mail if you want a solution to be published

Stipulations a) Is the position legal? b) Move pawn f7 to g7; is the position legal?

EDIT: Puzzle edited on 7 February.

I call this Chess 0. 😛

Yes, with at least one positive feedback, I’m starting to post these. I’m also a relatively newcomer to the field, so my difficulty rating will be based on my current knowledge at the time of the posts. And don’t expect a lot of stuff, since constructing these is way harder than constructing the usual deductive logic puzzle content. Expect more retro chess problems (or perhaps helpmates and similar), those that don’t require thinking like chess players.

Also, I might consider adding a new difficulty rating “Introductory”, which should be self-explanatory. (Retro 0 is Introductory.)