MatchIt

It doesn't appear to notice and notify when there are no more moves to be made... which is very important for these kind of games. While this are not the most overdone genre of games, it seems like it, because there is so little to the gameplay and little variation between the different games (when there is any at all). Try to think "outside the box" to find a new and compelling variation.

I might be wrong, but I get the impression the game doesn't end/finish when you ran out of options. If so then this needs a fix.

You got it.