Hey! This code finally works! Isn't that exciting, it can now make and solve sudoku puzzles. If you want to use all of these features try this line solvePuzzle(puzzlefy(randomPlacer(9), 40)). This'll create a random puzzle and then delete 40 of those numbers and then, wait for it, it will solve the puzzle. It only took me a couple of weeks to make :). Enjoy!
Feel free to contact me with any questions!
-- Daniel