liu wanchuan (also known as liu yi hai) () (november 1, 1906 – november 6, 1991) was a master of the chinese neijia (internal) martial art baguazhang. he studied extensively with the great baguazhang master ma gui (1851-1941), and is considered to be one of only two modern masters (the other being wang peisheng) to have successfully passed on ma gui's unique lineage to current generations. according to liu wanchuan, the baguazhang style that ma gui taught him using "low basin, small steps, and particularly heavy power and strength," and for those who practice it regularly "at the very least it will add ten or twenty years to your life."