LOGIC • NUMBERS • PUZZLE
Play a free Sudoku puzzle online at Bogey Games. Choose an easy, medium or hard puzzle and complete the 9×9 number grid using logic. No download or registration is required.
This browser Sudoku game is designed for phones, tablets and desktop computers and includes notes, hints, mistake checking and a timer.
Sudoku is a logic puzzle played on a 9×9 grid. The grid is divided into nine smaller 3×3 boxes. Some numbers are already provided when the puzzle begins.
Your job is to fill every empty square with a number from 1 to 9 while following three simple rules.
The numbers already shown at the beginning of the puzzle are fixed and cannot be changed.
Easy Sudoku begins with more numbers already filled in, giving you more information to work with.
Medium Sudoku removes more starting numbers and requires additional deduction. Hard Sudoku provides fewer clues and is intended for players who want a greater challenge.
Notes, sometimes called pencil marks, let you record possible numbers for an empty square without committing to an answer. Select Notes, choose a square and tap any possible numbers.
When you become confident about the answer, turn Notes off and enter the full-sized number.
Start by looking for rows, columns or 3×3 boxes that already contain many numbers. Work out which numbers are missing and use the intersecting rows and columns to eliminate impossible choices.
If several answers appear possible, use notes rather than guessing. Sudoku puzzles are solved through deduction: every square has a correct value that can be determined from the surrounding grid.
Sudoku uses numbers, but it does not require arithmetic. You never need to add, subtract, multiply or divide. The digits simply act as nine different symbols, making Sudoku a game of logic and pattern recognition rather than calculation.