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Solo · FREE PLAY

4x4 Sudoku

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Sudoku
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How to play 4x4 Sudoku

Open 4x4 Sudoku, check the instructions and begin a round. Fill all cells with 1–4; do not repeat a symbol in any row, column or region. Look at what changes after your first action. Begin with the solo mode shown on the page. Look at what changes after your first action.

A careful first round

Before your first action, say what you are trying to achieve. Then compare the result with the goal. Refer to the controls when needed.

Your goal

Fill all cells with 1–4; do not repeat a symbol in any row, column or region. Use the instructions to see which actions move you towards it. The example below illustrates a decision.

Step by step

  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.

Controls

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. Use the control method described here for this activity. Use the visible help when you are unsure of the next input.

A useful example

On one puzzle in this collection, row 1, column 3 has 4 in its solution. Read the clues on your current board before using that value; another puzzle can need a different entry. Your next round may have a different position, so inspect it before acting. Read the matching step again.

Watch out for this

Notes are reminders, not final entries. A full board only counts as complete when it satisfies every rule. Read the feedback to see why an action did not have the expected result. Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention.

Common questions

For a quick reminder, what is the goal of 4x4 Sudoku?

Keep this in mind: Fill all cells with 1–4; do not repeat a symbol in any row, column or region.

When I return, how do I control 4x4 Sudoku?

Here is the relevant explanation: 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.

Before I begin, what example helps explain 4x4 Sudoku?

Keep this in mind: 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.

When I return, what should I watch out for in 4x4 Sudoku?

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

For my first round, what format does 4x4 Sudoku offer?

The key detail is this: Play using the solo mode shown on this page. Read the controls before starting a new round.

While reading the Guide, which play mode does 4x4 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.

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