The protagonist awakens the "Heavenly Chessboard" ability when he is near death, and can intuitively see all possible branches of war deductions, and abstract the battlefield into a visual chess game influenced by the law of cause and effect. The enemy general's strategy, weather, terrain, and soldier's morale are all clear data on the "chessboard". He cannot directly participate in the war, but can only act as a "spectator", and by making moves at the right time (spreading a piece of information, mobilizing a platoon, creating a "coincidence"), he can force the direction of the war to the best "survival path" for his side. He is like a cheating player playing "Go" in the real world. Every seemingly insignificant "pointer" will trigger a battle-level butterfly effect.
