У вашего броузера проблема в совместимости с HTML5
Another tutorial on the same thing: https://www.youtube.com/watch?v=MPStvjT0dfY
How to make pieces: https://www.youtube.com/watch?v=9Ybfgkeddcg You can buy pieces here: https://www.etsy.com/shop/Girnelis?section_id=14825315&ref=shopsection_leftnav_3