Games played by Yujin Qiu (Zhejiang, China) as black in this fuseki

1
425
3
4bw
+  
=3 
-1 
?  

1Qiu Yujin - Zheng Wenxin
2Qiu Yujin - Cheng Yanzhen
3Qiu Yujin - Lu Hai
4Qiu Yujin - Huang Shengming