4D Underwater chess

Context: a friend kept making the joke "you are playing checkers while I'm playing 4D underwater chess" so I made 4D underwater chess,

ok so imagine chess but you add another dimension thats 3D chess but if you add another dimension you get 4D chess and then you play it underwater because reasons.

use the wasd or arrow and mouse to move around the first second and third dimensions and use the scroll wheel to go through the fourth dimension.

click a piece to see where you can place it.