Quote Originally Posted by Jonax View Post
True, unless the starting tiles are messed up. E.g. like here
I stand corrected. Not all puzzles are solvable. I have just tested yours with several online solvers None of them managed to solve it
I was never any good at solving these myself. Perhaps I might go and check how computers are trying to solve such puzzles and learn just as how I learned how to solve Sudoku puzzles