Developer builds 9 browser-based puzzle solvers using classic algorithms, no servers needed

A developer has built a suite of nine puzzle and game solvers — including Sudoku, Minesweeper, and Tic-Tac-Toe — that run entirely in the browser without any backend, API calls, or machine-learning models. Each puzzle solver was designed to use a different classic computer science algorithm, such as constraint propagation, minimax search, and alpha-beta pruning. The project runs on vanilla JavaScript inside a Web Worker, completing computations within a few hundred milliseconds on the user's own device. A key design principle was keeping everything client-side, both to protect user privacy and to eliminate server costs. The developer notes that these constraints made classic algorithms the ideal choice, as they are fast, deterministic, and lightweight enough to ship as a browser script.