Position and objective
Red material: Chariot + Soldier. Black defenders: Advisor + Elephant.
Mate the black general within the move limit. Red moves first and the AI answers for Black, with every move validated as it is played.
The black general starts on d7. Trace Red's a2-d2 move on the diagram before checking Black's reply.
How the mate works
Verified line: Red a2-d2 (車九平六), Black d7-e7 (將4平5), after the intervening moves Red d2-f2 (車六平四) mates. This is one legal continuation of the validated solution.
The shortest mate takes three moves. The complete move list is on this page — try to find it yourself first.
The first move is the key to the forced mate. Black may have other legal replies; the line below shows one verified continuation.
Key move and common mistakes
The chariot shifts from a2 to d2 with check, moving the general from d7 to e7 in the recorded line. The soldier advances to e6 with check, driving the general to f7. The chariot then shifts to f2 and mates along the f-file; the soldier controls the return to e7.
A chariot left on the d-file no longer checks the relocated general. Follow its new file for the finish. The soldier remains on e6 and has not been captured.
Full move list
Moves alternate Red and Black, exactly as published in the solution.
- 1. a2-d2 d7-e7 （車九平六 將4平5）
- 2. e5-e6 e7-f7 （兵五进一 將5平6）
- 3. d2-f2 （車六平四）
Difficulty and help
Use Hint when you are stuck, or Undo to take a move back.
A wrong move does not end the game — restart the same position and try again.