GitGuessr is a game that tests your code reading skills by dropping you into random locations in real GitHub repositories where some lines of code are masked. Your goal is to understand the codebase and fill in the missing code as quickly as possible.

The game features well-balanced games in Python, TypeScript, and JavaScript, which are the top three languages on GitHub. Players can also create their own code maps for the community from their favorite languages or favorite repositories.

GitGuessr operates by placing players in unfamiliar code segments from actual GitHub projects, requiring them to analyze the context and supply the correct missing lines. This approach mimics the challenge of navigating code generated by large language models.

The primary benefit is training a key programming skill in the AI era: orienting yourself quickly in unfamiliar code. It helps developers practice understanding codebases they haven't seen before, which is useful when working with AI-generated code.

The target users are software developers and programmers looking to improve their code reading abilities. The game integrates with GitHub repositories and supports popular programming languages.