I've recently released my first puzzle game and I'm curious what you think about it.
Your goal is to figure out the correct arrangement of oxygen atoms.
1) Oxygen atoms cannot be adjacent to each other, even diagonally
2) Numbers next to rows and columns tell how many oxygens should be in them
3) Each carbon atom needs 2 adjacent oxygens
Stuck? Press the hint button, which will explain how to come up with the next move.