Sure! Here's an example of a tic-tac-toe game implemented as a single HTML file using JavaScript:
To play the game, you can open the HTML file in your smartphone's web browser and start making moves by tapping on the squares. The game will alert you when a player wins or if it's a tie, and then you can continue playing by tapping on the squares accordingly.
Please note that this is a basic implementation of tic-tac-toe, and there's room for further improvements, such as adding a user interface for better visual representation and enhancing the user experience.