Wu Qingyuan, the first generation Weiqi master, commented on Cao Li and his disciples: "Cao Xunxuan is the most talented chess player. He and I come from the same teacher. He and I have successively studied Seto Yue's physique. Li Changgao's success depends on his extraordinary efforts. He has nothing but playing chess. "

Zhao Zhiyun, a late chess critic in China, commented on Li Changgao's chess style: "There is a famous saying in Li Changgao:' When playing chess, the more gorgeous the layout, the easier it is to be attacked by opponents. In life, people who make fewer mistakes are more likely to succeed than flashy people. It can be seen that Li Changgao's art and people are integrated, and his outlook on life and world is reflected in his chess skills. Generally speaking, Li Changgao's chess style is unpretentious, and he is a "latecomer" chess who makes no mistakes and waits patiently for the other side to make mistakes. He has great strength, but he doesn't use force easily. His train of thought seems to be in the same strain as the ancient military strategist's "be invincible for yourself first and wait for the enemy to win". Of course, it is extremely difficult to play a game with almost no flaws. If a chess player doesn't have solid basic skills and endurance for long-distance fighting, he can't do this at all. But for Li Changgao, he had it all. "

Masao Kato, a famous Japanese super-class chess player, once said: "You can understand other people's chess once, and Li Changgao's chess can only be understood after two or three times."

Rui Naiwei, the first woman in the world's nine-segment chess player, commented on Li Changgao: "If Li Changgao is not the first person in the world, then the world is too unfair."

A Weiqi player commented on Li Changgao: "Playing chess with Li Changgao feels like losing before playing chess."