Position and objective
Red material: Double Chariot. Black defenders: 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 e8. Trace Red's b6-b8 move on the diagram before checking Black's reply.
How the mate works
Verified line: Red b6-b8 (車八进二), Black e8-e9 (將5退1), then Red c7-c9 (車七进二) mates. This is one legal continuation of the validated solution.
The shortest mate takes two 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
One chariot advances from b6 to b8. The general retreats from e8 to e9 in the recorded reply, and the other chariot advances from c7 to c9 for mate. Their starting files identify which chariot moves each turn.
Do not make the final move with the chariot on the b-file. Update the general’s rank, then check the clear c7-c9 route.
Full move list
Moves alternate Red and Black, exactly as published in the solution.
- 1. b6-b8 e8-e9 （車八进二 將5退1）
- 2. c7-c9 （車七进二）
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.