About Best Fit Blitz

Best Fit Blitz is an original, directly playable browser game for practicing one focused task: estimating a line of best fit by eye. It is designed for students, teachers, and curious players who want a short visual exercise without an account, installation, worksheet, or calculation step before play. Each run contains five scatterplots. The player places a line, commits to the estimate, and then compares it with the ordinary least-squares benchmark.

Why this game exists

Regression is often introduced through formulas, but visual judgment still matters. A useful estimate should follow the broad direction of the cloud and balance the residual gaps rather than connect two convenient points. The game deliberately hides the benchmark and numerical error before submission. That sequence creates a small prediction-and-feedback loop: observe, choose, reveal, compare, and try another dataset.

Original implementation

The scatterplots are generated locally by original code from deterministic seeds. The user interface, scoring implementation, data generator, copy, visual system, and interaction design were created for this project. The site does not copy the source text, graph, problem set, scoring rule, page code, or visual trade dress of GVSU, Khan Academy, GeoGebra, MSTE, STAT337, or another educational product. Standard mathematical definitions such as ordinary least squares, residuals, sum of squared errors, and total sum of squares are implemented independently.

Limits of the result

A round score is informal game feedback, not a course grade, validated assessment, professional credential, or statistical guarantee. Synthetic datasets are intentionally small and readable. They do not represent every regression condition, and the game does not teach causal inference, diagnostics, uncertainty, transformations, or model selection. Use it to build intuition and start a discussion, then rely on appropriate instruction and statistical tools for formal work.

Technical questions can be sent through the public GitHub route on the Contact page. The current source and dependency acknowledgments are maintained with the project.