Yiquan (Chinese:意拳; pinyin: Yìquán; Wade-Giles: I4 Ch'üan2; lit. "Mind Boxing"), also known as dachengquan (大成拳) (Wade-Giles: Ta Ch'en Ch'uan; lit. "Great Achievement Boxing"), is a martial art system which was founded by the famous Chinese xingyiquan master, Wang Xiangzhai (王薌齋).