This is actually pretty novel ! It took a couple of games to figure out what's going on but once it's understood it's pretty deep ! Like there's pros and cons to picking different shape sizes, like you can grab more with 4 but have more precision with 2 (6 tile shapes might be a disadvantage). It's not so much luck based like bejeweled or match 3s, and I can see a player going almost indefinitely if they have the skill and patience. Well done !