A complete step-by-step guide to learning Sudoku, covering rules, scanning, naked singles, and pencil marks. Start playing today!

Understand the two fundamental rules of Sudoku and the overall goal of the puzzle.

Learn Sudoku strategies and solve puzzles like a pro! This beginner's guide covers essential techniques, from basic scanning to advanced patterns, for mastering Sudoku.

Find the single possible number for a cell by checking its row, column, and block.

Discover how to identify naked singles, the easiest and most fundamental Sudoku solving technique.

Learn how to find hidden singles, a key technique for eliminating possibilities and solving Sudoku.

New to Sudoku? Learn pencil marks (candidates) for online play on Minimal Sudoku! Our beginner's guide shows you how to use corner & center notes to solve smarter.

Master Snyder notation, a powerful technique for tracking candidates and solving harder Sudoku puzzles.