Sudoku solver , how to apply backtracking in this question

yesterday, i also ask the same doubt, in reply TA send me stupid solution that it is solve by backtracking, obviously the question is in backtracking track , so by using this , it can be solved

so what do want?
pls send the code
or ur approach

or
should i explain the approach

yes please explain the approach

as u know there is no repetition in the row and colmn and in the sub-matrix

backtracking approach to solve a suduko:

if a cell is not assigned any no
the assigned a no. 1 to 9
if it doesn’t conflict with row, colmn, and sub-matrix
then it is fine
else
try for the next no.

hope this will help u
pls rate my work

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