Thank you so much for playing my game and your feedback! How the whirlpools work 'under the hood' is that if there's a trail in all 4 cardinal directions (no diagonals) of a grid space and no whirlpools within 2 grid spaces in any direction (even diagonal) one should spawn. I originally tried to allow for checking diagonals to spawn a new whirlpool but it lead to being able to spawn a whirlpool by making an "L" shape, so I scrapped that idea. I'll try to make it a little more forgiving! Have a great day and good luck in the Jam!