What is the Wind of Mahjong game, how does it work?

According to the introduction of Mandy Lin, Wind of Mahjong is a Trivia game on the Android platform. There is currently a 1.0.00 version released on Dec 21, 2015, you can see the details below.

Wind of Mahjong is a whole new matching game that uses a set of mahjong tiles. It’s an interesting game for the players who are looking for fun and want to kill time.
1.You won't get rid of this classic mahjong game but love more innovative rules.
2.A variety of layouts and obstacles are waiting for you to challenge.
3.There's challenge mode to make you break the records again and again.
4.Various mahjong tiles attract you to play.

Game Features:
- Two modes: Leisure Mode and Challenge Mode.
- Leisure Mode: Divide into 4 different stages: Easy, Medium, Hard, Random.
- Challenge Mode: 300 board layouts keep your mind active.