I'm a daily crossword solver, and I often do the puzzles with my boyfriend. For his birthday, I want to make him a crossword with some answers that are meaningful to us (about 10 in total). I have no preference on what the answers for the rest of the puzzle grid will be, but I do want it to follow the symmetry and blocking of a real crossword. I have access to both PC and Mac, can anyone give me advice on the best software that will allow me to input my answers and then autofill the answers for the rest of the puzzle grid? I'm willing to pay for it if needed, but since this is the only time I'll be using the software, I'd prefer free.
Thanks for any help you can give!