Here are the posts for this theme on this blog:
Recent Core Sets: White
Recent Core Sets: Blue
Recent Core Sets: Black
Recent Core Sets: Red
Recent Core Sets: Green
Recent Core Sets: Variable Casting and Multicolored
Recent Core Sets: Artifacts
Recent Core Sets: Dual Lands
Recent Core Sets: Color and Card Type Balance
A Core Set Cube (M10, M11, M12, M13, M14)
The Core Set Super Cube
I have gone back and forth about including Tenth Edition, and I have decided that it must be in. Therefore, the cube as planned is Tenth Edition, M10, M11, M12, M13, M14, M15, and Origins. That's eight core sets. That is a ton of cards. I wonder how many decks that match specific archetypes can be built when we limit ourselves to just these cards.
May 2020 update:
I am finally working on this cube. Add M19, M20, and soon, M21.
Here are a few 10th Edition posts. I will add more links to this general post as I make more progress.