Fu Boyan from Putian City, Fujian Province, China, under the supervision of notaries from the Luanjiang Notary Office in Xiamen, Fujian Province, successfully solved the 15-puzzle on June 24, 2019, taking 15.211 seconds. Officially reviewed by the World Record Certification Agency, Fu Boyan set the world record of “Fastest time to solve the 15-puzzle”.