What is the same-direction cannons opening in xiangqi?
These answers restate the rules implemented by our open-source engine, which follows the WXF laws and is regression-tested against the official 110-diagram repetition casebook. Where an answer refers to a specific position, that position lives on the linked reference page, where the build verifies it against the engine before publishing.
Direct answer
It is an opening plan where both cannons move toward the same side of the board rather than one staying central and one shifting out, concentrating pressure on one wing instead of splitting it between two. It trades some flexibility for a sharper, more coordinated attack down fewer files.
Why concentrate both cannons together
Two cannons working the same side can support each other's screens and threaten the same weaknesses in the opponent's structure repeatedly, rather than each cannon operating in relative isolation on opposite wings. It suits a plan built around one clear target rather than pressuring the whole board evenly.
The trade-off
Committing both cannons to one side means the other side of the board gets less immediate attention, so the plan depends on the attack arriving before the opponent can generate enough counterplay elsewhere. It rewards accurate follow-up more than a split, balanced deployment does.
Related questions
Is this a beginner-friendly opening?
It's reasonably concrete and easy to follow, though converting the resulting attack still takes real calculation.
How does it compare to keeping cannons on opposite wings?
Opposite wings usually gives more balanced, flexible play; same-direction cannons trade that balance for concentrated firepower.
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