The recent sample from Informatics_100 News Wire solved via 08/2016 technique

Original system
https://vk.com/informatics_100?z=photo-40390768_457273821%2Fwall-40390768_193394

Convert system to equivalent
 (x2=>x1)^(x2=>x3)^(x4=>x3)^(x4=>x5)=1
 (y2=>y1)^(y2=>y3)^(y4=>y3)^(y4=>y5)=1
 x1^y1= 1

Just fork 08/2016 diagrams right away  && Neither one word is supposed to be told 
presuming you understand "GRAPHS AND SYSTEMS OF LOGIC EQUATIONS"