Why does my horse never do anything?
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
Three usual causes: its legs are blocked — often by your own pieces; it is sitting on an edge file where half its moves do not exist; or it is simply too far away, since a horse needs three or four moves to reach anything. All three are fixable, and the first is the most common.
Check the legs first
Look at the four orthogonally adjacent points. Each occupied one removes two of the horse's eight moves. A soldier or advisor placed casually in front of your own horse is the single most common self-inflicted problem in beginner games.
Give it a destination
A horse without a target is a horse doing nothing. The good squares are near the enemy palace, where it covers escape points the defender cannot easily contest and is very hard to drive away. Plan the route — three or four moves — before you start, and count whether you have time.
Related questions
Should I trade a bad horse?
If it has no route to anything and your opponent's horse does, yes, gladly.
Are edge horses always bad?
Nearly always in the opening. In the endgame an edge horse can still travel, because there is less to block it.
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