Games played by Ko-Han Chen (Taipei, Chinese Taipei) as black in this fuseki

3
524
1
7bw
+41
=  
- 2
?  

1Chen Ko-Han - Chang Yi-Feng
2Chen Ko-Han - Eibatov Nizami
3Chen Ko-Han - Yang Yu-Hsiung
4Chen Ko-Han - Sung Pei-Jung