Games played by Yi-Feng Chang (Taipei, Chinese Taipei) in this fuseki

2
41
53
4bw
+ 1
= 1
- 2
?  

1Gardstrom Petter - Chang Yi-Feng
2Volkov Sergey - Chang Yi-Feng
3Liu Tong - Chang Yi-Feng
4Shao Xiaodong - Chang Yi-Feng