# Connect

Compute the result for a game of Hex / Polygon.

The abstract boardgame known as
[Hex](https://en.wikipedia.org/wiki/Hex_%28board_game%29) / Polygon /
CON-TAC-TIX is quite simple in rules, though complex in practice. Two players
place stones on a rhombus with hexagonal fields. The player to connect his/her
stones to the opposite side first wins. The four sides of the rhombus are
divided between the two players (i.e. one player gets assigned a side and the
side directly opposite it and the other player gets assigned the two other
sides).

Your goal is to build a program that given a simple representation of a board
computes the winner (or lack thereof). Note that all games need not be "fair".
(For example, players may have mismatched piece counts.)

The boards look like this (with spaces added for readability, which won't be in
the representation passed to your code):

```text
. O . X .
 . X X O .
  O O O X .
   . X O X O
    X O O O X
```

"Player `O`" plays from top to bottom, "Player `X`" plays from left to right. In
the above example `O` has made a connection from left to right but nobody has
won since `O` didn't connect top and bottom.

## Getting Started
For installation and learning resources, refer to the
[exercism help page](http://exercism.io/languages/ocaml).

## Installation
To work on the exercises, you will need `Opam` and `Core`. Consult [opam](https://opam.ocaml.org) website for instructions on how to install `opam` for your OS. Once `opam` is installed open a terminal window and run the following command to install core:

```bash
opam install core
```

To run the tests you will need `OUnit`. Install it using `opam`:

```bash
opam install ounit
```

## Running Tests
A Makefile is provided with a default target to compile your solution and run the tests. At the command line, type:

```bash
make
```

## Interactive Shell
`utop` is a command line program which allows you to run Ocaml code interactively. The easiest way to install it is via opam:
```bash
opam install utop
```
Consult [utop](https://github.com/diml/utop/blob/master/README.md) for more detail.

## Feedback, Issues, Pull Requests
The [exercism/ocaml](https://github.com/exercism/ocaml) repository on
GitHub is the home for all of the Ocaml exercises.

If you have feedback about an exercise, or want to help implementing a new
one, head over there and create an issue.  We'll do our best to help you!

## Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.