Sudoku is one of the most popular puzzle games in the world, and for good reason: the sudoku rules are simple enough to learn in a minute, yet deep enough to keep experienced solvers busy for decades. You don't need any special knowledge — just numbers 1 through 9.
Here's everything a beginner needs to know, broken into five straightforward steps.
A standard Sudoku grid is 9 × 9 squares, divided into nine 3 × 3 regions (often outlined with thicker borders). Some squares already contain numbers — these are called "givens." The rest are empty.
Each row goes across horizontally, each column goes down vertically, and each region is one of the bold-outlined 3 × 3 blocks. If you can spot rows, columns, and regions, you're ready for step two.
The sudoku rules come down to one line:
Place the digits 1–9 in every empty square so that each row, each column, and each 3×3 region contains all nine digits exactly once — no repeats allowed.
That's it. No arithmetic, no guessing, no hidden rules. Every well-made Sudoku has exactly one correct solution, and you reach it purely by elimination.
Beginners should look for "naked singles" — squares where only one digit can possibly fit. Scan a region, row, or column and ask: which number is missing? Then check the intersecting rows and columns to see whether that number could go in multiple empty cells. If only one cell survives the cross-check, you've found your first placement.
This technique alone solves most beginner puzzles without ever needing pencil marks.
When naked singles run out, make small candidate notes (pencil marks) in each empty square. Write the few digits that could legally go there based on what's already in the row, column, and region.
Look for "hidden singles" — digits that appear as a candidate in only one square within a given row, column, or region. Even if that square has several candidates listed, if the digit itself is unique there, it belongs.
The jump from confusion to confidence happens fast with Sudoku — typically after solving eight to twelve puzzles. Your eyes will start scanning the grid naturally, spotting pairs and triplets without thinking about it.
All Jifu Digital Sudoku books feature one puzzle per page for a comfortable, uncluttered experience, cream-colored paper to reduce screen glare, and complete answer keys in the back of each book.
Looking for larger grids? Larger print, or other puzzle types entirely? Browse our full catalog of 39 puzzle books covering cryptograms, word search, number search, and logic puzzles — everything in the format that suits you best.