Position and objective
Red material: Chariot + Horse. 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 f8. Trace Red's a5-f5 move on the diagram before checking Black's reply.
How the mate works
Verified line: Red a5-f5 (車九平四), Black e8-f7 (士5进6), after the intervening moves Red f5-f7 (車四进二) 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.
Full move list
Moves alternate Red and Black, exactly as published in the solution.
- 1. a5-f5 e8-f7 （車九平四 士5进6）
- 2. g7-h9 f8-f9 （馬三进二 將6退1）
- 3. f5-f7 （車四进二）
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.