This book investigates the mechanics of Sudoku, a logic-based number-placement puzzle, by providing a structured collection of challenges designed to test the reader's deductive reasoning. Wayne Gould, the individual credited with popularizing the puzzle in the Western world, utilizes his expertise to curate a series of grids that progress in complexity. The book serves as an instructional and practical guide for enthusiasts seeking to master the rules and strategies required to solve these numerical arrangements.

This collection is regarded as the foundational text that introduced the Sudoku phenomenon to a mass audience through its association with The Times. The framing suggests a highly accessible entry point for novices while maintaining enough complexity to engage dedicated puzzle enthusiasts.