Games played by Qiwen Jiang (Guangzhou, China) in this fuseki

425
1
3
4bw
+2 
=  
-2 
?  

1Jiang Qiwen - Meng Jiehuan
2Jiang Qiwen - Li Yi
3Jiang Qiwen - Zhang Yifeng
4Jiang Qiwen - Zhang Yifeng