I've racked my brain enough and think I've tried everything, but I just don't see how there's any viable way to get the white tetra over both gaps to complete the level. Anyone figured it out?

I noticed you added an undo button, which is a great addition that was missing in the first game. My other suggestion would be to add a silhouette of the trophy before it appears so players can plan their moves. Great demo, waiting for full release.