Zheng Caiqian by Florian Dellé | Jun 24, 2014 | 0 Zheng Caiqian Zheng Caiqian is a Grandmaster of Memory (GMM) from China. He shined with his marvelous scores of 1898 digits in 60 minutes, 183 random words in 15 minutes and 82 dates in 5 minutes. China Grandmaster of Memory (GMM) Official Records Memory Records by Zheng Caiqian Speed Cards (5min max) Cards (60min) Speed Numbers (5min) Numbers (60min) Binary Digits (30min) Historic Dates (5min) Spoken Numbers Random Words (15min) Names & Faces (15min/old) Abstract Images