Oscar Cunningham’s Blog is a personal mathematics blog featuring accessible explorations of puzzles, probability, and mathematical ideas. Its posts connect recreational problems with broader concepts, using explanations, calculations, and examples to make the reasoning clear. In “Minesweeper thermodynamics,” Cunningham shows how the number of mines in a possible local arrangement affects its probability, then relates this to the Boltzmann distribution from statistical mechanics.

Other featured topics include constructing a three-dimensional Sudoku grid, investigating the unique distancing problem on square grids, and finding better ways to represent real numbers. The blog also discusses mathematical puzzles proposed by other enthusiasts and describes the use of computer searches alongside paper-and-pencil proofs. Readers can browse posts on the site, subscribe for updates, and join conversations through comments.

The material is aimed at people curious about mathematics, whether they enjoy solving puzzles or want to see how ideas from fields such as combinatorics and physics can illuminate familiar games