Petal Turn is a cozy 6x6 Reversi garden: tap any dotted empty cell, flank a straight run of moss, and every caught run flips to your petals in all eight directions. Ten campaign beds scale a deterministic gardener AI from a first-day helper to a sharp one-ply planner with locked +120 corner instincts. A date-seeded daily match gives everyone the same bed, with an honest world win-rate read and a cleared-beds percentile. Passes happen automatically, a draw is possible, and every tap is code-drawn flat art with synthesized chimes.