How do I do this in prolog? How would I out at one solution to another text?

15pts) Alphahabet Sudoku Solver! Write a solver for the 16x16 letter sudoku puzzle below (you can use numbers from 1 to 16 as well). Test it with a sample starting Sudoku puzzle with some of the letters filled in. Print out a possible solution for the puzzle (make sure you use lower case letters). Submit your Prolog file along with a screen shot of your test. You may use the swipl prompt if you want, or run it as a script, or run it in this interpreter found here http://swish.swi- prolog.org/example/clpfd sudoku.pl 5 Extra Credit points: write it as a script that reads the starting puzzle from a text file and outputs at least one solution to another text