Mallow Reservoir

Pour soft mallow into an uneven mold. Peaks relax sideways unless clamped; use the flow before fixing the final shape, rather than filling every basin equally. Discrete soft-material puzzle, not a real-time simulation. Four packets3,2,3,2; exact final heights0,3,1,4,2. On each committed action, scan neighboring columns left to right and move one unit from a peak at least3higher, unless its outflow is clamped. Repeat until stable. At most two clamps; release is reversible with Undo. Two manual presses move a unit even from a clamp. Ten actions and capacity5. The initially empty first column already matches its zero-height target.