Games played by Chengxiang Xu (Jiangsu, China) in this fuseki

4
2
1
53
4bw
+ 1
= 1
-11
?  

1Qiu Jilin - Xu Chengxiang
2Lin Xinpeng - Xu Chengxiang
3Zhang Xiuqi - Xu Chengxiang
4Xu Chengxiang - He Shirui