Position and objective
Red material: Lone Chariot. 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 f9. Trace Red's f3-f7 move on the diagram before checking Black's reply.
How the mate works
Verified line: Red f3-f7 (車四进四), Black f9-e9 (將6平5), after the intervening moves Red e7-d7 (車五平六) 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 what to check
Red opens with f3-f7 (車四进四), Black answers f9-e9 (將6平5), and Red finishes with e7-d7 (車五平六). Update the board after Black's reply before testing the final move.
A chariot follows an unobstructed rank or file.
Full move list
Moves alternate Red and Black, exactly as published in the solution.
- 1. f3-f7 f9-e9 （車四进四 將6平5）
- 2. f7-e7 e9-d9 （車四平五 將5平4）
- 3. e7-d7 （車五平六）
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.