Rules
Rules are simple. The players makes moves by placing one playing piece at the time. Each player tries to build a row of four playing pieces in the board frame, horizontally, vertically, or diagonally while trying to prevent his opponent from doing the same. (See figure)

Sounds easy, but it's not! The vertical play of this game requires the player to think ahead. The object of the game is to be the first player to get four of your playing pieces in a row, horizontally vertically or diagonally.

A user can choose from five different game-types to play. And the game-types are:
1- A human player can play a game against another human player on the same computer, i.e "Player A vs Player B".
2- A human player can play a game against an "Artificial intelligence" (AI) player on the same computer, i.e "Player A vs Computer".
3- An "Artificial intelligence" (AI) player can play a game against an "Artificial intelligence" (AI) player on the same computer, i.e "Computer A vs Computer B".
4- A human player can play a game over a network against another player situated on a different computer, i.e "Player A vs Remote Player".
5- An AI player can play a game over a network against another player situated on a different computer, i.e "Computer A vs Remote Player". (See figure)

When playing against the AI, there are three levels to choose from:
- Normal (offensive)
- Advanced (defensive)
- Expert (defensive)
(See figure)

Playing Remote (2 PC's playing against each other)
When playing versus a remote player, you can choose either to be a server or a client. One of the players has to be a server and the other one a client (this is a must):
- Server: when being a server you need to specify the port number that the server will listen to.
- Client: when choosing to be a client, you need to specify the IP-address to the remote computer (server), and the port-number. (See figure)

* A computer's IP-address can be received by opening a dos-prompt and typing in the word, "ipconfig".