Step 1) Pre requisites: Install python3, flask

Step 2) Running Flask: when in the 8-puzzle-solver directory: run: python3 flask_app.py

^this will run the server.

Step 3) type 127.0.0.1:5000 in the url on your browser and hit enter.

Step 4) Click on shuffle puzzle as many times as you want until you find a hard puzzle, then challenge the A* search to solve it!

Step 5) Have fun!