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Learn the rules of 6x6 Sudoku

An idea for your next attempt

Read one step at a time and try it on the playing area. Match the instruction to the control you use. Make the next step deliberately.

The purpose of your moves

Fill all cells with 1–6; do not repeat a symbol in any row, column or region. Read that aim before choosing your first action. The example below illustrates a decision.

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.

Input guidance

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. On a smaller screen, keep the active part of the board within view. Check any mode label before starting.

Put the rules into context

On one puzzle in this collection, row 1, column 1 has 6 in its solution. Read the clues on your current board before using that value; another puzzle can need a different entry. Compare this with the rule that governs the move. Keep the game’s format in mind.

Avoid this misunderstanding

Notes are reminders, not final entries. A full board only counts as complete when it satisfies every rule. Check the rule before repeating the action. Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention.

Helpful answers for players

For this browser game, what is the goal of 6x6 Sudoku?

Keep this in mind: Fill all cells with 1–6; do not repeat a symbol in any row, column or region.

When I return, how do I control 6x6 Sudoku?

The key detail is this: 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.

What example helps explain 6x6 Sudoku?

The key detail is this: Before filling a cell, compare the symbols already used in its row, column and 2 × 3 region. A candidate must be absent from all three.

Before I begin, what should I watch out for in 6x6 Sudoku?

The key detail is this: Notes are reminders, not final entries. A full board only counts as complete when it satisfies every rule.

As a new player, what format does 6x6 Sudoku offer?

Here is the relevant explanation: Play using the solo mode shown on this page. Read the controls before starting a new round.

As a new player, which play mode does 6x6 Sudoku use?

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

On this playing page, where should I start with 6x6 Sudoku?

The key detail is this: Select an empty cell. The original clues cannot be edited.

Before I begin, do I need an account or a payment for 6x6 Sudoku?

Here is the relevant explanation: No player account or payment is needed. Game scores are recreational results, not cash prizes.

Before I begin, how can I find 6x6 Sudoku again?

For clarity: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.

Before I begin, how do I report an issue with 6x6 Sudoku?

The key detail is this: Use the contact form and include the game name, browser, device and the actions that led to the issue. Do not send passwords or payment details.