Great game for killing time

JaneePetes comment is really helpful. I am a seasoned MJ player and after anout an hours play, I find this game to be very good. I only give this a 4 star becuase I had played for a shrot time. I have some suggestions for the developer:
1. As others have suggested, provide a basic description on how to play the game for novice players.
2. In the tools section, provide description for how the various combination of a winning hand is counted when calculating the points awarded. There are many forms of MJ and each has a slightly differnt way of counting giving (or not giving) points to certain combination. Knwoing the rules will change ones playing strategy.
3. When I drew winning card, no prompt came up to ask me whether I want to declare a win or not. I had to tap the hand symbol on the lower right had corner to get the prompt to come up. Seems like this might confuse firt time users. BTW: I had set help to ON in the tools section.

YL GongGong about Mahjong!, v1.90