THE PLAYBOOK · IHAHOOO
How to play 6x6 Sudoku
Start 6x6 Sudoku by looking at the playing area and its controls. Fill all cells with 1–6; do not repeat a symbol in any row, column or region. Look at what changes after your first action. Check the rule that explains your first action. Keep the game area visible while you use its controls.
Focus on one rule
Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow. Make the next step deliberately.
Your goal
Fill all cells with 1–6; do not repeat a symbol in any row, column or region. An attractive position is not enough unless the goal is met. Notice how the game responds to your input.
Step by step
- Select an empty cell. The original clues cannot be edited.
- Choose a symbol from the number pad, or type it on a keyboard.
- Turn Notes on to record candidate symbols without committing an answer.
- Use Check entries to check your filled values. Hint reveals one value from the verified solution.
- 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. On a smaller screen, keep the active part of the board within view. Contact us with the game and device if a control does not respond.
A useful example
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. Apply the same reasoning to the position in your own round. Keep the game’s format in mind.
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. Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board.
Common questions
Before I begin, what is the goal of 6x6 Sudoku?
The key detail is this: Fill all cells with 1–6; do not repeat a symbol in any row, column or region.
For my first round, 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.
While learning, what example helps explain 6x6 Sudoku?
The key detail is this: On one puzzle in this collection, row 1, column 1 has 3 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 6x6 Sudoku?
For clarity: Notes are reminders, not final entries. A full board only counts as complete when it satisfies every rule.
On this playing page, what format does 6x6 Sudoku offer?
For clarity: 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 6x6 Sudoku use?
Here is the relevant explanation: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.