Challenge: The Secret to Countering Black's 'Chariot Checkmate': A Counterattack from the 'Rook Checkmate' Position - Can you solve it?

When Black plays the Rook on file 4 to checkmate Red's General, Red counters by playing the Cannon on file 6 with an empty file, creating opportunities to reverse the board in a level 5/10 game. Detailed analysis of decisive moves and common mistakes made by Black.