Every xiangqi player eventually meets this situation: one side keeps checking, the other keeps escaping, and the position goes round in circles. In chess the answer is easy — threefold repetition, draw. In xiangqi the answer is more interesting, and it is one of the reasons the game feels so combative: the side that keeps checking is usually not allowed to do it forever.
This article explains the ideas behind the xiangqi repetition rules, the cases you are most likely to meet, and why casual games — including games on this site — use a much simpler version.
The core principle
Formal xiangqi rules start from one idea:
If a position repeats because one side keeps making forcing moves (checks or threats to capture) and the other side keeps making ordinary defensive moves, the forcing side must change its play. If it refuses, it loses.
If both sides are making "allowed" moves, or both sides are making "forbidden" ones, the repetition is a draw.
So the rules sort moves into two broad groups:
- Forbidden when repeated forever: perpetual check, perpetual chase (attacking the same unprotected piece again and again), and combinations of the two.
- Allowed when repeated forever: ordinary "idle" moves, moves that threaten nothing, and certain kinds of attacks that the rules treat as acceptable.
Perpetual check (long check)
This is the clearest case. Red gives check, Black moves the general, Red checks again, Black moves back, and the same positions return.
Under formal rules the side giving perpetual check must stop. If it does not, it loses the game. Vietnamese players call this "chiếu dai" or "chiếu mãi".
Why? The rule-makers wanted to prevent a player from rescuing a lost position by checking forever. In chess, perpetual check is a classic drawing resource. In xiangqi it is not.
A consequence: when you are losing and your only idea is to check forever, that idea does not save you. You need a real defense.
Perpetual chase (long chase)
The second forbidden pattern is chasing an unprotected piece forever. Imagine Red's chariot attacks a black horse; the horse moves; the chariot follows and attacks it again; the horse returns; and so on. If the horse is not protected, the chasing side is the one that must deviate.
This rule has many details in formal texts:
- Chasing a protected piece is generally treated differently from chasing an unprotected one.
- Many rule sets treat attacks made by the general or by soldiers as allowed rather than as chases.
- Mixed sequences ("one check, one chase") are usually treated like forbidden moves.
The full official rules contain long lists of special cases and diagrams, and different organizations publish slightly different versions. If you play in a club or tournament, the arbiter's rulebook decides.
When is repetition simply a draw?
Repetition is a draw when neither side is breaking the rules — for example, both players shuffle advisors back and forth in a locked position — or when both sides are making forbidden moves at the same time, such as both sides giving perpetual check.
Why casual games keep it simple
Correctly judging a repetition under formal rules can require an experienced arbiter. In park games and friendly play, people usually use a short version:
- "The checking side must stop." The player who is giving perpetual check has to try something else.
- Or simply "repetition is a draw", like in chess.
This site's computer and online games use the second option: a position that appears three times is scored as a draw. It is predictable, it cannot be argued about, and it never punishes a new player for breaking a rule they have not read. If you play in a formal event, learn that event's rulebook.
Practical consequences for your play
Even if you mostly play casually, the formal idea should shape your thinking.
When you are winning
Do not let the opponent escape with endless checks. If you know the formal rule applies, the opponent's perpetual check is not a draw — they will have to deviate. On this site, however, a threefold repetition is a draw, so avoid positions where the opponent can check forever. Keep your general's shelter intact: an advisor or elephant in the right place often stops a perpetual before it starts.
When you are losing
Under formal rules, perpetual check will not save you. Look for other defensive resources: exchanges that remove the attacker's most dangerous piece, a fortress with advisors and elephants, or counter-threats.
When you are chasing a piece
If your "attack" is really just chasing the same piece around, ask what you are achieving. A real plan — bringing another piece into the attack, improving your worst piece — is almost always better than repeating.
A simple example of the logic
Picture Red's chariot giving check from the side of the palace. Black's general steps up; the chariot checks again from the rank; the general steps back; the chariot checks from the side again. Three positions repeat in a cycle.
- Under formal rules, Red must vary. If Red has nothing better, the "attack" was not really winning.
- Under this site's rule, the position repeats three times and the game is drawn.
Knowing both versions helps you judge a position correctly whichever rules you play.
How to learn more safely
Formal repetition rules are one of the few parts of xiangqi where reading a summary on a website is not enough to judge difficult cases. If you plan to play in organized events, ask the organizer which rules they follow and read them. For everyday play, remember the principle and the site's simple rule, and spend your study time on tactics and endgames, which decide far more games. Start with how a xiangqi game ends and the rules section.
Frequently asked questions
Is perpetual check a draw in xiangqi?
Under formal rules, no: the side giving perpetual check must change its moves or lose. In casual play and on this site, a position repeated three times is a draw.
What is a "chase" in xiangqi?
A move that threatens to capture a piece. Repeating a chase of the same unprotected piece forever is generally forbidden.
Can my general chase a piece forever?
Many rule sets treat attacks by the general as allowed, but details vary. Check the rules of the event you play in.
Do I need to learn the full repetition rules as a beginner?
No. Learn the principle — forcing moves repeated forever are not allowed — and focus on the rest of the game. The full rules matter mainly in formal competition.
