It is a standard Seven bridge.
It will compete the score of a total of 24 round.
There are also close declaration that aim high scores by issuing a card at a time.
And relatively easy to win beginner mode, there is a normal mode.
For rules
The rule is similar to a mah-jong, are described in the play of the application, but they may not be know may read the rules if you do not know at all. In that case, it is it is early to be taught to those who know.