Thanks! Glad you enjoyed the game.
Yeah he tutorial thing could definitely be toggled off once the player has learned them. And obviously improved upon in other ways too. Hard to make even a decent tutorial without any proper playtesting.
Interesting idea that those solid blocks could be passed when matching cards on both sides. Surely it would fix the issue of unreachable pockets of space. But dunno if it would make predicting the movements even harder than it is currently with some not so easily to noticed accidental matches. On the other hand though it would also lessen the probability of accidental dead ends early on.