(0048)  


result is "B + 2" result is "B + 8" result is "unknown so far" result is "unknown so far" result is "unknown so far" 

(0049)  


result is "B ++" result is "B + 8" result is "B + 13" result is "B ++" result is "B + 2" 

(0297)  


result is "B + 8" result is "B ++" result is "B ++" result is "B + 10" result is "B + 8" result is "B + 8" result is "B ++" 

(0873)  


??? Black 1 at B11 is not possible. because the top right is not played out yet. 

SGF for this variation. 
(0874)  


???  
SGF for this variation. 