Position and objective
Red material: Double Chariot. Black defenders: Advisor.
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 d9. Trace Red's i6-i9 move on the diagram before checking Black's reply.
How the mate works
Verified line: Red i6-i9 (車一进三), Black d9-d8 (將4进1), then Red c4-c8 (車七进四) 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
The right chariot advances from i6 to i9. After the general advances from d9 to d8 in the recorded reply, the other chariot advances from c4 to c8 for mate. The attack switches to a different chariot on the second turn.
Do not continue moving the original chariot. Update the general to d8 and check the second chariot’s c4-c8 route.
Full move list
Moves alternate Red and Black, exactly as published in the solution.
- 1. i6-i9 d9-d8 （車一进三 將4进1）
- 2. c4-c8 （車七进四）
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.