Chen Bohan, a youth from Haizhu, Guangzhou, Guangdong province, solved a 4*5 Klotski puzzle blindfolded in 5.38 seconds in Guangzhou on Aug 20, setting a new world record for this task.

Chen Bohan. [Photo/WeChat account: gzhzfb]

Chen is 14 years old and is studying at Guangzhou Haizhu Foreign Language Experimental Middle School. He learned how to do Klotski puzzles blindfolded by himself in 2021. After learning that a Malaysian enthusiast had broken the world record of "the fastest time to solve a 4*5 Klotski puzzle blindfolded," which was previously held by a Chinese person, with a time of 6.9 seconds, Chen was determined to break the world record for this.

Chen practices doing a Klotski puzzle blindfolded [Photo/WeChat account: gzhzfb]

Chen said that he loves all kinds of puzzle competitions. Previously, he won the fourth-order Rubik's Cube speed completion in the 2019 Guangdong Youth Cube Open, the fourth-order Rubik's Cube speed competition in the 2020 Guangdong Youth Cube Open, the Oblique Rubik's Cube speed competition in the third China Brain Championship in 2021, and the gold medal in the 2022 Guangdong-Hong Kong-Macao Greater Bay Area Youth Aesthetic Education Achievement Exhibition. He has also finished second in the Pyramid Rubik's Cube Speed competition at the 3rd China Brain Power Championship (2021).