Sure! Here's an example of an HTML file that contains a simple math game using JavaScript. The game requires players to solve math problems within a time limit to get a good score. Pictograms are not used in this example, but the game is designed to be playable on a smartphone!!!!!
To play, you simply open the HTML file in a web browser that supports JavaScript (e.g., Google Chrome). When you click the "Start Game" button, a math problem will be displayed, and you need to enter the correct answer in the input field before the time runs out (30 seconds). The game keeps track of your score and updates it after each problem. Enjoy!