Why is it called Earthworm Subdues the Dragon?

The 'earthworm' is the weak side's soldier; the 'dragon' is the opponent's chariot and other big pieces. The name captures the point of the position: the small beating the large.

What is the best result in this position?

With correct play these street positions are usually draws — and often they are really a test for the side that looks stronger. If Red gets greedy and goes deep, Black's little soldier can turn the tables.

Are street positions useful for training?

Yes. They are excellent for calculation and alertness. But remember they are usually set up to look winnable when they are not, so focus on understanding the ideas rather than memorising lines.

Earthworm Subdues the Dragon | Street Xiangqi Endgame Explained

Earthworm Subdues the Dragon is one of the most widely circulated street xiangqi positions. Its charm is that the small restrains the large: the side that looks weak holds the opponent's chariot at bay with a single unremarkable soldier. Studying it sharpens both calculation and alertness.

1. The shape of the position

The typical structure: one side has a chariot and other strong pieces and looks hugely better; the other side has only a general, advisors, elephants and a soldier or two — but placed perfectly. The weak side uses the soldier's blocking and checking threats to stop the chariot from doing anything.

The tension comes from two things:

The strong side believes it must win, and gets impatient;
The weak side only has to hold the key points to force a draw or even a win.

2. Why the big pieces struggle

The reason is the same as in Why a Lone Chariot Cannot Break Full Advisors and Elephants:

Chariots and cannons need space; once a soldier and the advisors and elephants cut their lines, they have power but nowhere to use it;
The weak side only has to hold the key points to form a repeating defence that the attack cannot break;
In an endgame, a perfectly placed soldier is often worth more than a trapped chariot.

This is why xiangqi players say: in the endgame, look at positions, not at material.

3. The right plan for Red

If you have the strong side, the key is "no greed, no loss of tempo":

Deal with the checking threat first — do not open your own palace just to take a soldier;
Use your big piece to control the weak general's escapes, drive it to a bad square, then squeeze;
Avoid perpetual checking, which can be judged a draw outright;
Look patiently for cracks in the defence instead of forcing things.

4. The right plan for Black

To hold, the weak side must:

Keep the soldier on its key square, always blocking the strong piece's route;
Keep advisors and elephants connected, never offering a free capture;
Counterattack when possible — the moment the strong side slips, check with the soldier.

5. Common mistakes

The strong side grabs the soldier and walks into a counter-check, losing the game;
The weak side moves the soldier casually, giving up the blocking square;
Both sides ignore the endgame principle: secure your own position before trying to make progress.

6. How to practise

Set up the Earthworm Subdues the Dragon structure in our endgame editor and play both sides:

Take the strong side first and see whether you can find a win — feel where the difficulty is;
Then take the weak side and confirm the drawing plan;
Record the key variations and understand the purpose of every block and release.

Further reading: Why a Lone Chariot Cannot Break Full Advisors and Elephants and Lone Horse Against a Lone Advisor are both excellent material for understanding piece values in endgames.

Earthworm Subdues the Dragon: A Classic Street-Xiangqi Trap