Mahjong Solitaire: Classic

I have noticed that the harder puzzles are made hard by adding more of the same tiles. The traditional Chinese version has 144 tiles and the American version has 152. However, there are only 4 of each tile. It's a shame you have to resort to adding tiles just to make it harder. I have played many versions on my smartphone, and plenty of the games were hard with only 4 of each tile.

I really loved this game until it stopped working properly. As another user stated, it became nearly impossible to complete a game, and the gold tiles were a stupid addition. Eventually, it wouldn't let me play at all on my phone, so I took it off. I had the same game on my tablet, and it still works fine. After a few months, I tried reinstalling it, hoping the bugs were fixed, but this time it won't do anything but a brief tutorial and serial ads, but no daily game. So I uninstalled it again.