Skip to content
XIQIGLASSTHE EVERYDAY PLAY CLUB

Solo · FREE PLAY

Classic Sudoku

Read the rules ↓
Sudoku
Choose your controls and enjoy a free round.
No account neededRules & controls ↗

THE PLAYBOOK · XIQIGLASS

Read before your next round of Classic Sudoku

Open Classic Sudoku, check the instructions and begin a round. Fill all cells with 1–9; do not repeat a symbol in any row, column or region. Check the relevant rule before repeating a move. Begin with the solo mode shown on the page. Look at what changes after your first action.

Build familiarity through play

Take enough time to read a new position. If a game has a timer, learn its controls first rather than searching for them during the round. Make the next step deliberately.

Your goal

Fill all cells with 1–9; do not repeat a symbol in any row, column or region. Keep that objective in view throughout the round. Keep the controls in easy reach.

Start here and follow along

  1. Select an empty cell. The original clues cannot be edited.
  2. Choose a symbol from the number pad, or type it on a keyboard.
  3. Turn Notes on to record candidate symbols without committing an answer.
  4. Use Check entries to check your filled values. Hint reveals one value from the verified solution.
  5. Complete the board, or choose New puzzle for another board.

Making selections and moves

Tap or click a cell and use the number pad. Keyboard: arrows select cells; digits (and A–G on 16×16) enter values; Backspace erases. Keep the playing area visible while using these controls. Check any mode label before starting.

Work through an example

On one puzzle in this collection, row 1, column 1 has 1 in its solution. Read the clues on your current board before using that value; another puzzle can need a different entry. Use the example as a guide rather than a substitute for reading your board. Choose a deliberate next step.

A mistake to avoid

Notes are reminders, not final entries. A full board only counts as complete when it satisfies every rule. Take a moment to reassess the position before continuing. Before your first action, say what you are trying to achieve. Then compare the result with the goal.

Helpful answers for players

For a quick reminder, what is the goal of Classic Sudoku?

The key detail is this: Fill all cells with 1–9; do not repeat a symbol in any row, column or region.

While reading the Guide, how do I control Classic Sudoku?

Keep this in mind: Tap or click a cell and use the number pad. Keyboard: arrows select cells; digits (and A–G on 16×16) enter values; Backspace erases.

For a quick reminder, what example helps explain Classic Sudoku?

For clarity: On one puzzle in this collection, row 1, column 2 has 3 in its solution. Read the clues on your current board before using that value; another puzzle can need a different entry.

On this playing page, what should I watch out for in Classic Sudoku?

For clarity: Notes are reminders, not final entries. A full board only counts as complete when it satisfies every rule.

While reading the Guide, what format does Classic Sudoku offer?

Keep this in mind: Play using the solo mode shown on this page. Read the controls before starting a new round.

On this playing page, which play mode does Classic Sudoku use?

The key detail is this: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.

PICK A GAME

Continue exploring the library

View all games
Play More Games (opens in a new tab)