What is the Dalmax Gomoku game, how does it work?

According to the introduction of Dalmax.Net, Dalmax Gomoku is a Board game on the Android platform. There is currently a 2.0.0 version released on Feb 04, 2017, you can see the details below.

Gomoku is a board strategy game.

Players play in turn by placing a piece on an empty intersection of the board.
The winner is the first player to get a line of five contiguos pieces (both horizontally, vertically, or diagonally).

Dalmax Gomoku supports both 1 player mode (against the CPU),
and dual player mode, against your friend.

What's new in version 2.0.0 v2.0:
- fix gameplay errors
- add bard backgrounds
- add piece-set
- better dialog management
v. 1.3.x:
- Add multiple board/pieces colors
- Minor improvement to A.I. strength
- Recalibrate difficulty levels
- Add localization in ar,de,es,fr,it,nl,pl,pt,ru,zh
- minor fixes