◇ Just read — no move neededThe price list
Rough values: chariot 9, cannon 4.5, horse 4, advisor 2, elephant 2, pawn 1 — doubled once across the river, as the pawn chapter showed. A trade wins when it gains points, and wins double when it also removes an enemy attacker or a key defender. The strategic rule rides on top: when ahead in material, trade pieces and simplify; when behind, refuse trades and complicate — a混乱 board is the losing side's only friend.