The river cannons are exposed; Red must support them with chariots and horses or risk losing the tempo.

Double River Cannons (Shuang Pao Guo He)

炮二平五，炮八进四

A bold double-cannon thrust where both cannons advance to the river to grab space and pressure Black's camp directly.

Strategic Ideas

Double River Cannon is aggressive and space-grabbing. It demands accurate follow-up; if the cannons are exchanged, Red must have development ready.

Black answers 马8进7 + 马2进3.

Black answers 炮2平3 to hit the soldier base.

Does it overextend?: The river cannons are exposed; Red must support them with chariots and horses or risk losing the tempo.

Central Cannon 炮二平五 Identical Cannons (Shun Pao) 炮二平五，炮8平5 Cross Cannons (Lie Pao) 炮二平五，炮2平5 Cross Palace Cannon (Guo Gong Pao) 炮二平六