shell game
It's a fraud. Chinese idiom, Pinyin is ch ú NSH ú PI à NJ ú, which means it's a fraud.
Idiom usage
It has a derogatory meaning. What he did is pure fraud.
Idiom story
During the spring and Autumn period and the Warring States period, a man from the state of Wei told the king of Yan that he could carve a macaque on the tip of the thorn. The king of Yan was very happy and gave him a high salary. The king of Yan was eager to see the macaques. The people of Wei proposed that the king of Yan could only see the macaques without sleeping with his concubines. King Yan believed the advice of the blacksmith of Zheng State and proposed to see the carving knives of the people of Wei state. The people of Wei state had to abscond.
shell game
a good sword remains always sharp - bǎo dāo bù lǎo
heaven fragrance and national beauty - tiān xiāng guó sè