Pebble Sower is a classic mancala (Kalah) duel against the Sower, a deterministic AI that studies deeper in every garden. Sow your pebbles counter-clockwise, skip the rival store, earn an extra turn when the last pebble lands in your own store, and capture on an empty landing. Clear ten campaign gardens with depths 6, 8 and 10, or face the same daily Sower as everyone else, seeded by today's date. Most pebbles in your store wins the garden.