...not that kind of knight... Get all the gems with a CHESS knight! Simply click on a square to move there, but you can never revisit a cell. They're marked in red. Oh, and some levels have cells premarked. That's just to limit your movement. Nothing's broken. When I said gems, I meant (obviously!) the 3 kinds of gems: black gems (do absolutely nothing whatsoever), green gems (they can be picked up without marking), and blue gems (you can go onto a marked cell for every gem you have). Blue gems don't exist yet...
100% Me