Contents

# Queen Attack

Given the position of two queens on a chess board, indicate whether or not they
are positioned so that they can attack each other.

In the game of chess, a queen can attack pieces which are on the same
row, column, or diagonal.

A chessboard can be represented by an 8 by 8 array.

So if you're told the white queen is at (2, 3) and the black queen at
(5, 6), then you'd know you've got a set-up like so:

```plain
_ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _
_ _ _ W _ _ _ _
_ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _
_ _ _ _ _ _ B _
_ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _
```

You'd also be able to answer whether the queens can attack each other.
In this case, that answer would be yes, they can, because both pieces
share a diagonal.

## Running tests

Execute the tests with:

```bash
$ elixir bob_test.exs
```

(Replace `bob_test.exs` with the name of the test file.)

### Pending tests

In the test suites, all but the first test have been skipped.

Once you get a test passing, you can unskip the next one by
commenting out the relevant `@tag :pending` with a `#` symbol.

For example:

```elixir
# @tag :pending
test "shouting" do
  assert Bob.hey("WATCH OUT!") == "Whoa, chill out!"
end
```

Or, you can enable all the tests by commenting out the
`ExUnit.configure` line in the test suite.

```elixir
# ExUnit.configure exclude: :pending, trace: true
```

For more detailed information about the Elixir track, please
see the [help page](http://exercism.io/languages/elixir).

## Source

J Dalbey's Programming Practice problems [http://users.csc.calpoly.edu/~jdalbey/103/Projects/ProgrammingPractice.html](http://users.csc.calpoly.edu/~jdalbey/103/Projects/ProgrammingPractice.html)

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

Version data entries

96 entries across 96 versions & 1 rubygems

Version	Path
trackler-2.2.1.91	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.90	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.89	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.88	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.87	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.86	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.85	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.84	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.83	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.82	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.81	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.80	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.79	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.78	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.77	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.76	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.75	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.74	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.73	tracks/elixir/exercises/queen-attack/README.md
trackler-2.2.1.72	tracks/elixir/exercises/queen-attack/README.md