What number should replace the question mark?

Question

The sum of each two adjacent squares gives the number above.

What number should replace the question mark?

Answer 1

175.

Solving it is a bit like solving a sudoku. You fill in the values that will logically fit, and then the simplest way I found is to make educated guesses on the ones that are left. Two minutes and a sheet of paper full of scribbled numbers and you've got it!

Answer 2

175
this can be obtained by similar problem
whose solution is given by this method .
In this example value are different but using this method we obtained 175 in our program