Looks' neat, though oddly difficult to tell what each piece is in the shiny/glowy graphical version and less hard to recognize them if you use the other one. Piece recognition is pretty vital so this is an odd thing to overlook. I mean sure you can still click your own piece you are unsure of to see what it is (by it's movement) if you forget, but not opponent's pieces.
The AI is quite easy to beat (and mess with) if you are somewhat adept in chess as it often lets you have free pieces and doesn't always recognize mate threats, but that may be a plus as oftentimes chess games are inaccessible to many because the AI is too strong, lol! I think that's because too many others underestimate how hard chess is because they are already adept at it when they make a game and go: "This seems about right!" Then it slaughters most who try it. But some higher difficulty levels would be welcome if possible for a "play how you like/can" experience.
Some oddities I found are that sometimes it'll start playing itself even if you set one as human. You can just try it again until it does. Also on occasion it'll "take control of your pointer" in the browser version as you click on it. Which doesn't seem intended since it otherwise doesn't and still works. The game also doesn't seem to have concept of mate other than just taking the king. Which works. It's just unexpected. After a win, you may also see opponent's pieces look like they are being clicked on to move. But this is really minor as it doesn't do anything.