Oh, also sometimes putting a 3 card in a box turns into a 5, or some other number, and I have no idea why, or why sometimes the grid rejects cards. A manual would be a very handy thing to have. Also a turn-based option, because it is miserable having to just clickety-slap cards into the grid and hope they don't get bounced out of the grid at random. There was a lot of work put into this, and I'd like to be able to enjoy it.