<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/16451955/12433578/c2c6a8ce-bef9-11e5-89ae-ec2c3ac0b290.png"><img src="https://cloud.githubusercontent.com/assets/16451955/12433578/c2c6a8ce-bef9-11e5-89ae-ec2c3ac0b290.png" alt="screen shot 2016-01-19 at 20 07 13" style="max-width: 100%;"></a></p>
<p dir="auto">After completing a challenge I press <kbd>CTRL</kbd> + <kbd>Enter</kbd> or <kbd>Cmd</kbd> + <kbd>Enter</kbd>, this submits my challenge.</p>
<p dir="auto">Doing the same once again should take me to the next challenge as per the behaviour of the current site.</p>