Quarto!

A simple two player game of logic and observation.

Game Setup
The game board consists of 16 cells: 4 row of 4 cells.

16 pieces can be placed on this board. Each of the 16 pieces is unique and has 4 different attributes:
 * its size (big or small)
 * its color (dark or light)
 * its shape (square or round)
 * its hollowness (full or hollow)

Goal
The aim is to line up 4 pieces which share the same attribute. Vertical, horizontal and the 2 diagonal alignments count.

Gameplay
The trick of the game, and what makes it original, is that you can't choose which piece you're going to play : your opponent chooses for you. So the game goes on like this:
 * player 1 chooses a piece A
 * player 2 places piece A on the board
 * player 2 chooses a piece B
 * player 1 places piece B on the board

The pieces to be chosen at originally on the outside of the board.

Strategy
There are several lines of strategy to follow:
 * if a line has three pieces of the same type, make sure you don't give a piece of this type to your opponent!

Options
You can play PvP or versus AI, and watch ongoing games. The AI is fairly simple, but it is however already a challenging opponent.