雙馬連環
The Mystery of Chess Boxing (1979)
Alias: Ninja Checkmate
Literal Translation: Double Chained Horses
Alias : 雙馬發威
Country: Hong Kong
Language: Mandarin 
Genre: Martial Arts 
 
Director
  Joseph Kuo Nan-Hong
 
Script
  Joseph Kuo Nan-Hong
 
Action Directors
  Ricky Cheng Tien-Chi
  Wong Chi-Sang
  Wong Wing-Sang
 
Producer
  Joseph Kuo Nan-Hong
 
 
Cast
  Li Yi-Min ... Ah Pao
  Jack Lung Sai-Ga ... Chi Siu Tien/Chess player
  Mark Lung Koon-Mo ... Ghost Face killer
  Simon Yuen Siu-Tin ... Old cook
  Wong Chi-Sang ... Ghost Face's first kill/Student
  Ricky Cheng Tien-Chi ... Student
  Jeannie Chang Yung-Yung ... Chi Siu Tien's granddaughter
  Wong Wing-Sang    
  Hsiao Hou-Tao ... Student bully
  Mau Ging-Shun    
  Hsiao Wang ... Waiter
  Au Lap-Bo    
  Wong Suet-Kwan    
  Hiu Hau-Diy    
  Man Ying (1)    
  Wang Yun-Kun    
 
Production Company
  Hong Hwa International Films (H.K.) Ltd.
 
Production Manager
  Chen Tai-An
  Wang Yang (8)
 
Sound Recordist
  Chang Hua
 
Art Director
  Jonathan Ting Yuen-Tai
  Lee Bo-Lam (2)
 
Lighting
  Yang Nai-Di
  Pang Chi-Yung
  Yang Shao-Wen (2)
 
Makeup
  Liu Hsiao-Fung
 
Executive Director
  Chiang Nan (2)
 
Props
  Yang Tzu-Hsin
 
Cinematographer
  Chang Hui-Kung
 
Editor
  Huang Chiu-Kuei
 
Costume Designer
  Ching Yuk-Lan
 
Presenter
  Kuo Chia-Tai
 
Assistant Director
  Chan Cheun-Yuk
 
Composer
  Wong Mau-San
 
Filming Location
  Taiwan