Challenge: Defensive Counterattack Strategy: Red Rook Moves from File 7 Rank 10 to File 8 Rank 10 - Can you solve it?

When the Red Rook moves from file 7 rank 10 to file 8 rank 10, the Black General must be cautious. The Red Rook is preparing a decisive move, requiring the Black General to defend with precision to exploit counterattack opportunities.