This sentence is actually the embodiment of Li Changgao's chess style. He made great efforts to fight with his opponent, but he made small gains everywhere, and finally let his opponent admit defeat. Because, if you fight your opponent with 100% strength, you have to take great risks. The purpose of Go is to win chess, not to kill opponents. So don't expose your edge too much, take both offense and defense into consideration, and win the final victory in the safest way. ......