Whirlpool Pearls

HERE’S
THE IDEA.

Choose two orthogonally adjacent cell centres to toggle their connecting line. Make one loop through every pearl without branches or crossings. At a white pearl travel straight, turning in at least one neighbouring cell. At a black pearl turn, then continue straight through the next cell on both sides. Check the loop.

Pause, restart and adjust effects inside the player. Automatic previews never save results. Your progress shows its save status while you play.