This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Embed Code Restart Now playing Playing Can You Solve This Horse & Rider Puzzle That Stumped Rach? Can You Solve This Horse & Rider Puzzle That Stumped Rach? Sahana Srinivasan, host of Netflix's "Brainchild" — a science show for kids — played an age-related game with our studio audience that you can do at home. Check it out in the video above!