The solution to problems № 14 of "How many different solutions does the system of equations.pdf have" in the style of 08.2016

Original system ( compare with  https://informatics-ege.blogspot.com/2018/01/13-14-pdf.html  )
Source  1Сколько различных решений имеет система уравнений.pdf

Equivalent system

          (x3 => x4) => (x1=>x2) =1

          (x5 => x6) => (x3=>x4) =1
          (x7 => x8) => (x5=>x6) =1
          (x9 => x10) => (x7=>x8) =1
          (x1=>x2) => (x9 => x10) =1

I do remember that about two years ago Helen Mironchick warned that classical pairs originally used by myself was not the best way to solve task 14 and even sent to me in private a couple of charts wich looked to me at those time as a kind of "Chinese manuscript". One more time I have to state that poor understanding on 08.2016 is just a half of disaster.

Now fork a couple of 08.2016 charts required to solve the task