Xiangqi checkmate: count the escapes before you check
Work through three small positions to distinguish a check from mate, explain each chariot’s job and see how one horse changes the answer.
On this page
A check is a question, not a result
A check attacks the opposing general. Checkmate means that no legal reply removes that attack. These are different claims: finding a checking move proves the first, but you must examine the defender’s options to prove the second.
Look for three kinds of reply: move the general to safety, capture the attacker, or interrupt the attack. Blocking is not available against every piece, and a cannon’s screen needs different treatment from a chariot’s open line. We begin with small positions so that each defensive possibility can be checked. The goal is to explain the unavailable escapes, not memorize a move.
Set up the first position
E1: Black general · I2: Red chariot · A3: Red chariot · E6: Red soldier · E10: Red general
Open the practice board →The diagram is the library study “Seal the palace”, with Red to move. Coordinates stay fixed: A–I run left to right and 1–10 run top to bottom. Black’s general is on E1; Red has chariots on A3 and I2, a soldier on E6 and the general on E10. Open the study to move either side and undo variations.
The general’s adjacent palace destinations are D1, F1 and E2. It cannot move diagonally or off the board. The distant soldier on E6 matters: it separates the generals along the E-file. Removing it would change the legality of the setup, not merely its appearance.
Try the matching board lesson, then return to your reading.
Open the practice boardOne chariot checks; the other closes the door
Play A3–A1. Its path is clear. From A1, the chariot checks along the first rank and covers both D1 and F1. Moving sideways therefore does not save Black’s general.
E2 is covered by the other chariot, still on I2. Its line to E2 is unobstructed. Black has no other piece to interpose or capture the checking chariot, and the general cannot jump from E1 to A1. All three adjacent escapes are now accounted for. The useful cooperation is the division of duties: one chariot checks while the other maintains the barrier.
A tempting check that fails
Reset and try I2–I1 instead. This also checks along the first rank, preventing D1 and F1. However, moving that chariot abandons the second rank. The chariot on A3 does not attack E2.
Black can now reply E1–E2. That square is inside the palace, neither chariot attacks it, and the soldier on E6 still prevents the generals from facing. I2–I1 is therefore a check but not mate in one. Whenever you move a piece that was containing the opponent, ask which square loses protection. Checking moves must be evaluated after the move, not on the old board.
At the palace edge, rebuild the checklist
D1: Black general · A2: Red chariot · I3: Red chariot · E6: Red soldier · E10: Red general
Open the practice board →In “The edge palace”, Black’s general starts on D1 and Red’s chariots on A2 and I3. The soldier and Red general stay in their previous places. Black’s adjacent palace squares are now E1 and D2. C1 is on the board but outside the palace.
After I3–I1, the checking chariot covers E1 and the chariot on A2 covers D2. The same division of duties works with a different set of escapes. Before revealing the reference, name the square covered by each chariot. “This wins” is an outcome; “this covers E1 and that covers D2” is an explanation you can transfer to another position.
One horse changes the failed move
E1: Black general · I2: Red chariot · A3: Red chariot · G3: Red horse · E6: Red soldier · E10: Red general
Open the practice board →“Find the finishing line” adds a red horse on G3 to the first setup. The horse attacks E2 by going two files left and one rank up, provided its first orthogonal step, F3, is empty. Here it is empty.
Now I2–I1 mates: the chariot covers D1 and F1, while the horse covers E2. A3–A1 also works. These are alternative first moves from the same position, not consecutive moves in a line. A study can have more than one correct finish. Blocking F3 would remove the horse’s attack on E2 and require a fresh calculation.
Transfer the method to a crowded board
With more pieces, the escape-square checklist is only the beginning. Look for defenders that can capture the attacker or interrupt its line. Recalculate attacks after every capture or interposition; do not stop because the arrangement resembles a familiar mating pattern.
First check the legality of your own move. Exposing your general, or allowing the generals to face along an empty file, invalidates an attack regardless of its threat. Use a repeatable order: your general’s safety, whether the move checks, the defender’s destinations, possible captures and possible blocks. This produces a useful analysis rather than an impression that a move looks strong.
A ten-minute review routine
First solve the original position by naming all three escape squares. Next deliberately play I2–I1 and find Black’s E2 reply. Then open the horse version and identify its leg square before moving a chariot. Finally explain why C1 is excluded in the palace-edge example.
Before revealing a solution, predict the defender’s most promising reply. Verify why it works or fails, and write one sentence about your mistake: “I moved the second-rank chariot without replacing its coverage of E2.” That sentence is a useful cue for your next puzzle. Understanding one defence is more valuable than clicking through a long sequence without a prediction.
Pause and test your reasoning
After I2–I1 in the first study, how can Black escape, and why is the third study different?
Reveal the answer and reasoning
E1–E2 escapes in the first study because the second rank was abandoned. In the third, the horse on G3 attacks E2 through the empty F3 leg square.
Continue learning
A correction is welcome. Include the section and the source you would like us to check. Contact the editor ↗
