2017年4月8日在中国厦门举行的世界纪录认证官方挑战中，由叶佳希(中国）、洪珏钰（中国）共同挑战水下憋气双人单手还原三阶魔方，完成时间在17.37秒。入水、调整呼吸、水下憋气，在畅游天琴湾健身中心，两名挑战者准备开始挑战双人单手复原三阶魔方。在世界纪录认证官和魔方爱好者的共同见证下，“魔方全能王”叶佳希和他11岁的徒弟洪珏钰，最终以17.37秒的好成绩挑战成功。

   In the official challenge competition of World Records Certification held in Xiamen of China on April 8, 2017, both Ye Jiaxi (Chinese) and Hong Jueyu (Chinese) participated in the Rubik’s cube solving contest with one hand by cooperation of two players under the water and succeeded within 45s, which was identified as the fastest Rubik’s cube solving with one hand by cooperation of two players under the water after the on-the-spot inspection was carried out by officials from World Records Certification.

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