Co-designed by David Pitcher, this puzzle is actually a modification of Oskar’s Geary Cube. Hiding behind the hearts of this puzzle is an internal gear cube! The hearts rotate 90 degrees for every 180 degree face turn. However, unlike the Gear Cube and Geary Cube, there is no center piece to tell you what color goes on each side. The overall solve is very similar to a Gear Cube so if you can solve one of those, you can likely figure this one out too. Turning can be a bit stiff at first but over all the quality is great and it’s a very playable puzzle.