I tried playing sirtet for a while. That was pretty interesting. My brain kept wanting to orient the pieces as if I was playing Tetris leading me to occasionally do the opposite of what I was intending to do and dig myself into a hole both figuratively and literally. I found it pretty challenging to figure out a good strategy for stacking; there aren't so many lines to work with at once and the constraint that the soil has to be connected at all times adds a bit of challenge. I couldn't get very far and only managed to clear four lines a couple of times. I can definitely say now that I don't think 7 bag is a mistake for this. With the added challenge, having 7 bag and a hold window is probably a good idea.