(2231)  


result is "W + 1" result is "W + 20" result is "W ++" result is "W ++" 

(2232)  


result is "B + 2" result is "B + 1" result is "W + 1" 

(2257)  


Black tries to capture White's group on the left faster than "usual".  
result is "W + 20" result is "W + 20" 

(2271)  


result is "W ++" result is "W ++" 

(2276)  


(2277)  


White lives in DoubleKo.  
(2278)  


So, sooner or later ...  
(2279)  


W +  
SGF for this variation. 