Go to the challenge page and click the top-right corner silhouette button to login.
If you are a reviewer, and the current stage of the competition is a Review stage, you will see a My Reviews button next to your profile picture. Click the button to see your reviews.
Here you will see the number of reviews needing your attention. Then, click on Go to reviewer dashboard.
The Review Dashboard groups your pending reviews by review stage. Click on Start to proceed.
The next screen shows a list of pending reviews. Click on Start to open the review form.
On the left side under Application you can see the application details, and on the right side the review form.
Make sure you mark the Review as complete when you're finished.
Finally, click Mark as complete to submit the review.