When did chess appear? What are the allusions?

Chess has a long history in China. During the Warring States period, there have been official records about chess, such as: "Chu Ci evokes the soul" contains "six volumes of chess; Go hand in hand with Cao and push each other; " If you become an owl, be specific. "..." Shuo Yuan "contains: Yong Men Zizhou Qin Yi met Meng Changjun and said," The first step is Wang Qian, and ... Yan Douqi dances Zheng Nv. Therefore, as early as the Warring States period, chess became popular among nobles. During the Three Kingdoms period, the shape of chess was constantly changing, and it had a communication relationship with India. By the Southern and Northern Dynasties and the Northern Zhou Dynasty, Emperor Wudi (reigned in 56 1 ~ 578) wrote Xiang Jing, while Wang Bao wrote Xiang Xu and Xiang Jing Fu, marking the completion of the second major reform of chess. During the Sui and Tang Dynasties, chess activities developed steadily and were frequently recorded in history books. After nearly a hundred years of practice, chess was shaped into a modern model at the end of the Northern Song Dynasty: 32 pieces, a chessboard with a river boundary, and so on. During the Southern Song Dynasty, chess became a very popular chess activity.

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