Goal: Connect two opposite edges with a road of your flat stones or capstone — top↔bottom OR left↔right.

First two moves: Each player places one of their opponent's flat stones anywhere.

Placing: Select Flat, Wall, or Cap then tap any empty square.

Moving a stack: Tap a stack to inspect it. Tap "Move Stack" then tap a blue destination square. Choose how many pieces to drop there. Continue until all carried pieces are placed.

Flat — builds roads, can be stacked, counts for territory.
Wall — blocks roads and movement. Not part of a road.
Capstone — counts for roads, crushes walls flat, one per player.

Stack limit: Maximum 5 pieces per stack. Carry limit = 5.

Flat win: Board full or supply empty — most flat stones on top wins.