Sure! Here's an example of a simple Mathminder game implemented as a single HTML file using JavaScript:
You can copy and save this code in a file with a .html extension (e.g., mathminder.html), and then open it in a web browser to play the game. The game will generate a random math problem using pictograms for different operations (e.g., "+", "-", "×", "÷"), and you will need to enter the correct answer. After each answer, it will show if your answer was correct or not, and then generate a new problem.