Position and objective
Red material: Chariot + Soldier. 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 f9. Trace Red's i3-i9 move on the diagram before checking Black's reply.
How the mate works
Verified line: Red i3-i9 (車一进六), Black f9-f8 (將6进1), then Red h8-g8 (兵二平三) 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 chariot checks along the back rank and forces the black general forward. The soldier then moves sideways onto the general’s rank to deliver mate. That sideways move is legal because the soldier has already crossed the river.
Do not look only for another chariot check. Update the general’s position after its reply, then inspect the crossed-river soldier’s sideways move.
Full move list
Moves alternate Red and Black, exactly as published in the solution.
- 1. i3-i9 f9-f8 （車一进六 將6进1）
- 2. h8-g8 （兵二平三）
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.