1. Input Hidden
Focused on finding hidden values in forms, such as input fields with the attribute type="hidden". Locate and use them to complete the task.
Use the browser's developer console (DevTools) to uncover information not directly visible on the page.
Analyze or manipulate HTTP headers, such as adding or reading specific values during requests.
Use the Network tab in DevTools to capture network requests. Identify specific information or responses necessary to solve the challenge.
Work with cookies stored on the website. Extract values crucial for calculations or to submit the correct answer.
A straightforward algorithm where you implement or understand basic logic, like calculations based on input values.
Work with JSON data. Load and process JSON structures, identifying specific values (e.g., prime numbers).
Use regular expressions to analyze or extract information, such as from images or other files.
Decode text from Base64 or QR codes containing key information needed to solve the task.
Perform calculations with powers or ranges. It may involve optimization or finding specific numbers.
The final challenge combines multiple previous concepts (e.g., cookies, algorithms, HTTP requests). It requires deeper analysis of the code to produce a solution meeting all conditions.