title: How to use LINQ on a multidimensional array to 'unwind' the array?
body: <p>Consider the following array:</p>
  
  <p><code>int[,] numbers = new int[3, 2] { { 2, 1 }, { 3, 4 }, { 6, 5 } };</code></p>
  
  <p>I would like to use LINQ to construct an IEnumerable with numbers 2, 1, 3, 4, 6, 5.</p>
  
  <p>What would be the best way to do so?</p>