Caravan Keystone

Lower both cargo keystones to row four. A match must clear the square directly below that cargo, not any tile in its column. Spend three Coral supplies on a brace before the heavy left cargo makes its final descent. Depleted support boards return rotated. Deliver both within nine exchanges.

Tap controls, or Tab then Enter/Space. R restarts. Every action is turn-based; take time to plan.

Critical pieces descend through matching; one construction delivery puzzle.