It's tricky to balance puzzle games for jams. Some gamers (like me) just aren't likely to get very far, because we're not good at puzzle games.
On the other hand, if you make the game too easy, it won't appeal to people who love puzzle games. It's a dilemma.
Seems like a nicely crafted puzzle game, but I ragequit after the 4th or 5th return to the lobby.